Pressure control. Direct and pilot operated pressure control valves for applications up to 350 bar (5000 psi) and 300 L/min (80 USgpm)

Transcription

1 Hydraulic Screw-in Cartridge Valves (SiCV) Pressure control Direct and pilot operated pressure control valves for applications up to 5 bar (5 psi) and L/min (8 USgpm)

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3 Pressure control PRSSUR CONTROLS...-4 DR - RLIF VALV... - DR - RLIF VALV...- RV- - RLIF VALV...-4 RV- - RLIF VALV...-6 RV5- - RLIF VALV...-8 RV- - RLIF VALV...- AR - RLIF VALV...- RV5-6 - RLIF VALV...-4 ARD - SHOCKLSS RLIF VALV...-6 RV4- - RLIF VALV...-8 RV- - RLIF VALV...- ARC - RLIF VALV...- RV8-8 - RLIF VALV...-4 RV- - RLIF VALV...-6 RV8- - RLIF VALV...-8 RV- - RLIF VALV...-4 RV8- - RLIF VALV...-4 RV8-6 - RLIF VALV LR - RLIF VALV UAR - RLIF VALV GR - RLIF VALV...-5 GR6 - RLIF VALV...-5 GR - RLIF VALV VR - RLIF VALV VR - RLIF VALV UL6 - RLIF/UNLOADING VALV...-6 PUL6 - RLIF/UNLOADING VALV...-6 PUL - RLIF/UNLOADING VALV CLLR5 - DUAL RLIF VALV CLLR - DUAL RLIF VALV PSV-8 - PRSSUR SQUNC VALV...-7 PSV4-8 - PRSSUR SQUNC VALV...-7 PSV8- PRSSUR SQUNC VALV PSV- - PRSSUR SQUNC VALV PSV- - PRSSUR SQUNC VALV PSV4- - PRSSUR SQUNC VALV...-8 PSV- - PRSSUR SQUNC VALV...-8 PSV5- - PRSSUR SQUNC VALV PSV- - PRSSUR SQUNC VALV PSV7- - PRSSUR SQUNC VALV DS - PRSSUR SQUNC VALV...-9 DS6 - PRSSUR SQUNC VALV...-9 DS - PRSSUR SQUNC VALV PS6 - PRSSUR SQUNC VALV PS - PRSSUR SQUNC VALV PSV-6 - PRSSUR SQUNC VALV...- PS - PRSSUR SQUNC VALV... - PSV-6-6 -PRSSUR SQUNC VALV PSC - PRSSUR SQUNC VALV PSC - PRSSUR SQUNC VALV UPS - PRSSUR SQUNC VALV... - PUV- - PILOT UNLOADING VALV... - ADV-6 - ACCUMULATOR DISCHARG VALV PRV- - PRSSUR RDUCING/RLIVING VALV PRV- - PRSSUR RDUCING/RLIVING VALV PRV- - PRSSUR RDUCD/RLIVING VALV...- PRV- - PRSSUR RDUCING/RLIVING VALV...- PA - PRSSUR RDUCING VALV...-4 PRV-6 - PRSSUR RDUCING/RLIVING VALV...-6 PA - PRSSUR RDUCING VALV...-8 PDC5 - PRSSUR RDUCING VALV...- aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

4 Pressure controls Valve locator Functional symbol Model Cavity Flow rating Typical pressure Relief valve, poppet L/min (USgpm) bar (psi) DR A879. (.) 4 (58) - DR A879 (8) 4 (58) - RV- C-- (8) () -4 RV- C-- (u) 4 () 5 (5) -6 Page Model Cavity Flow rating Typical pressure Page Relief valve, spool L/min (USgpm) bar (psi) RV5- C-- 4 () 5 (5) -8 RV- C-- (u) 9 (5) 5 (5) - AR A88 5 (4) 4 (58) - RV5-6 C-6- (8) 5 (5) -4 Model Cavity Flow rating Typical pressure Page Shockless Relief Valve, Poppet L/min (USgpm) bar (psi) ARD A88 (6) () -6 Model Cavity Flow Rating Typical pressure Page Relief valve, poppet L/min (USgpm) bar (psi) RV4- C-- /45 (.5/) 5 (5) -8 Model Cavity Flow rating Typical pressure Relief valve, spool L/min (USgpm) bar (psi) RV- C-- -4 (-) 5 (5) - ARC A88 5 (4) 4 (58) - Page Model Cavity Flow rating Typical pressure Relief valve, poppet L/min (USgpm) bar (psi) RV8-8 C-8- (8) 5 (5) -4 RV- C-- 76 () 5 (6) -6 RV8- C-- 76 () 5 (5) -8 RV- C-- (u) (5) 5 (5) -4 RV8- C-- (u) (5) 5 (5) -4 RV8-6 C-6- (8) 5 (5) -44 LR A6 8 () 5 (5) -46 Page -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

5 Pressure controls Valve locator Functional symbol Model Cavity Flow rating Typical pressure Relief valve, spool, unloading L/min (USgpm) bar (psi) UAR A88 5 (4) 5 (5) -48 Page Model Cavity Flow rating Typical pressure Relief valve, spool L/min (USgpm) bar (psi) GR A88 (8) 6 () -5 GR6 CVA-- 6 (6) 4 (6) -5 GR A88 5 (4) 4 (6) -54 Page Model Cavity Flow rating Typical pressure Relief ventable, spool L/min (USgpm) bar (psi) VR A46 (6) 5 (5) -56 VR A6 (5) 5 (5) -58 Page Model Cavity Flow rating Typical pressure Page Unloading L/min (USgpm) bar (psi) UL6 A46 6 (6) 5 (5) -6 4 Model Cavity Flow rating Typical pressure Unloading L/min (USgpm) bar (psi) PUL6 A88 6 (6) 5 (5) -6 PUL A45 (5) 5 (5) -64 Page Model Cavity Flow rating Typical pressure Page Relief dual L/min (USgpm) bar (psi) CLLR5 C-- 5 () 5 (65) -66 CLLR A878 5 (4) 5 (5) -68 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

6 Pressure controls Valve locator Functional symbol Model Cavity Flow rating Typical pressure Pressure sequence valve, spool L/min (USgpm) bar (psi) PSV-8 C-8- (6) () -7 PSV4-8 C-8-5 (4) 5 (5) -7 PSV- C-- (6) () -78 PSV4- C-- 5 (4) () -8 Page Model Cavity Flow rating Typical pressure Series sequence valve, NO, spool L/min (USgpm) bar (psi) PSV8- C--4 (6) () -74 Page 4 Model Cavity Flow rating Typical pressure Series sequence valve, NC, spool L/min (USgpm) bar (psi) PSV- C--4 (6) () -76 Page 4 Model Cavity Flow rating Typical pressure Series sequence valve, spool L/min (USgpm) bar (psi) PSV- C-- (6) () -8 PSV5- C-- 8 () () -84 Page Model Cavity Flow rating Typical pressure Series sequence valve, spool L/min (USgpm) bar (psi) PSV- C-- (6) () -86 Page Model Cavity Flow rating Typical pressure Series sequence valve, spool L/min (USgpm) bar (psi) PSV7- C-- (6) () -88 DS A88 (8) 4 () -9 DS6 CVA--6-6 (6) 4 (6) -9 DS A88 5 (4) 4 (6) -94 Page -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

7 Pressure controls Valve locator Functional symbol Model Cavity Flow rating Typical pressure Series sequence valve, spool L/min (USgpm) bar (psi) PS6 CVA--6-6 (6) 5 (5) -96 PS A88 5 (4) 5 (5) -98 PS A6 5 (6) 5 (5) - PSV-6 C-6-S (6) 5 (5) -4 Page Model Cavity Flow rating Typical pressure Page Series sequence valve, spool L/min (USgpm) bar (psi) PSV-6 C-6-95 (5) 5 (5) - Model Cavity Flow rating Typical pressure Page Series sequence valve, spool L/min (USgpm) bar (psi) PSC A66 (8) 5 (5) -6 Model Cavity Flow rating Typical pressure Series sequence valve, spool L/min (USgpm) bar (psi) PSC A88 5 (4) 5 (5) -8 Page Model Cavity Flow rating Typical pressure Series sequence valve, spool, unloading L/min (USgpm) bar (psi) UPS A88 5 (4) 5 (5) - Page Model Cavity Flow rating Typical pressure Page Pilot unloading valve L/min (USgpm) bar (psi) PUV- C-- 4 () () - Model Cavity Flow Rating Typical Pressure Page Accumulator discharge valve L/min (USgpm) bar (psi) ADV-6 C-6-S (8) () -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

8 Pressure controls Valve locator Functional symbol Model Cavity Flow rating Typical pressure Pressure reducing valve, spool L/min (USgpm) bar (psi) PRV- C-- 5 (4) 65 (4) -6 Page Model Cavity Flow rating Typical pressure Pressure reducing valve, spool L/min (USgpm) bar (psi) PRV- C-- 8 () 4 (5) -8 Page PRV- C-- 45 () 5 (5) - PRV- C-- 4 () 5 (5) - PRV-6 C-6-5 (4) 5 (5) -6 Model Cavity Flow rating Typical pressure Page Pressure reducing valve, spool L/min (USgpm) bar (psi) PA A88 (6) -5 (5-5) -4 PA A6 (5) 5 (5) -8 (P) Model Cavity Flow rating Typical pressure Page Pressure reducing valve with check L/min (USgpm) bar (psi) PDC5 C-- 6 (.5) 5 (5) - (RG) -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

9 Pressure controls Introduction This section gives basic specifications for aton pressure control threaded cartridge valves. Its purpose is to provide a quick, convenient reference tool when choosing aton cartridge valves or designing a system using these components. aton offers a full range of aton direct and pilot operated relief, reducing, sequence and unloading valves. In general, he direct operated products are faster in response while pilot operated types have a flatter pressure/flow characteristic. Relief valves When selecting a relief valve for a specific application, consideration should be given to the following Direct operated poppet types RV and RV Suitable for continuous duty with reliable fast response, the RV being a low pressure, low cost option. These valves are also suitable for piloting the DPS logic elements. Pilot operated poppet type with reverse free-flow check RV Use as a service line relief where anticavitation make-up is required. It may also be applied as an internally piloted counterbalance valve in a service line. Direct operated poppet type, differential area models RV and RV8 Sometimes termed a differential area relief valve. A fast acting valve, highly tolerant of contaminant and providing an alternative flow path, frequently beneficial in manifold layout. Utilized in CRV crossline relief packages. Pilot operated spool type RV5 and RV Well suited for repetitive, continuous duty with a low pressure-override characteristic. Direct operated ball type RV6 A fast-acting valve for intermittent duty. This low flow, low cost valve may be used as a pilot section for a larger mainstage valve, or piloting logic elements. Reducing valves Two types are available: Direct operated with relieving feature PRV Pilot operated with relieving feature PRV and PRV Pilot operated without relieving feature Sequence valves A complete range of sequence functions is available, including: Normally-closed and normally-open models Internal and external pilot options Internal and external drain options Two and three position models xternally drained models may be used as relief valves in circuits with alternating pressure and tank line functions. Accumulator unloading valves Valves that allow accumulators to be charged to a preselected maximum pressure at which the pump is unloaded. The pump does not cut-in until the accumulator pressure has decayed to a pre-selected percentage of maximum pressure. The low-flow PUV model can be used as a stand alone model for low flow applications, or as a pilot stage in two-stage arrangements for higher flows. Accumulator discharge valve This valve is designed to ensure that an accumulator will discharge when pilot pressure is lost, e.g. on pump shutdown. Fluid cleanliness Proper fluid condition is essential for long and satisfactory life of hydraulic components and systems. Hydraulic fluid must have the correct balance of cleanliness, materials, and additives for protection against wear of components, elevated viscosity, and inclusion of air. Adjustments The adjustment range and Max setting figures shown throughout this catalogue give the design range for each valve, higher or lower values may be attainable but should not be used without first contacting our ngineering department. Setting must ALWAYS be carried out using an appropriate gauge and it must NOT be assumed that screwing an adjuster to its maximum or minimum position will yield the maximum or minimum stated design setting for that valve. Tightening torque of F adjuster locknut - to 5 Nm P - Leakproof Screw R - Handknob G - Tamperproof Cap F - Screw aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

10 DR - Relief valve Poppet, direct acting, L/min (. USgpm) 4 bar (58 psi) Operation Pressure on the nose of the cartridge acts over the seat area moving the poppet against the spring, allowing relief flow to tank. Features Fast acting, good reseat, ideal for remote operation of larger valves. Sectional view Performance data Tank () Pressure () Ratings and specifications Performance data is typical with fluid at cst (5 SUS) Typical application pressure 4 bar (58 psi) Rated flow, L/min (. USgpm) Cartridge Material Working parts hardened and ground steel. xternal sufaces zinc plated. Cavity C-8- (see Section M) Aluminum (up to bar) Standard housing materials or Steel (add 77 suffix for steel option) Torque Cartridge into Cavity 45 Nm ( lbs ft) Temperature range - to 9 C (- to 94 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code BS / (5 micron nominal) Weight cartridge only,4 (.) Internal leakage. ml/min nominal (5 dpm) Nominal Viscocity Range 5 to 5 cst Seal kits SK87- Buna N SK87-V Viton Viton is a registered trademark of.i. DuPont Description This is a direct acting, poppet style screw in cartridge relief valve which is ideally suited for use as a pilot valve or a thermal relief. Pressure override curves Flow - L/min Flow - US gpm Pressure - psi Pressure - bar - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

11 DR - Relief valve Poppet, direct acting, L/min (. USgpm) 4 bar (58 psi) Model code DR** P W 4 S 4 5 Function DR - DR - Cartridge and body Adjustment P - Leakproof screw adjustment R - Handknob adjustment G - Tamperproof cap (see page -7 for dimensions) Port size - bodied valves only Code Port size Housing number Aluminium Steel W /4 BSP A485 W /8 BSP A4 A475 6T /8 SA A5676 A484 See section J for housing details. 4 Pressure range at.5 L/min Note: Code based on pressure in bar bar (-45 psi) - std setting at 7 bar - 5- bar (5- psi) - std setting at bar bar (75-58 psi) - std setting at 8 bar 5 Seal material S - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) Dimensions mm (inch) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Hex socket adjust 4.A/F 7. A/F Installation drawing 6. (.6). (4.5) max (.) (.97) (.7) 5. (.5) max 5.4 A/F holes Ø6.8 (.7) thro ) 44.8 (.76) 5.8 (.).7 (.5) 8.8 (.) 5.9 (.6).8 (.5) /4-6 UNF 7. (.6) Tank () Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Pressure () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

12 DR - Relief valve Poppet, direct acting L/min (8 USgpm) 4 bar (58 psi) Operation Pressure on the nose of the cartridge acts over the seat area moving the poppet against the spring, allowing relief flow to tank. Features Fast acting, low pressure rise due to flow for a direct acting valve. Sectional view Performance data Tank () Pressure () Ratings and specifications Performance data is typical with fluid at cst (5 SUS) and 4 C ( F) Typical application pressure Rated flow Cartridge Material 4 bar (58 psi) L/min (8 USgpm) Working parts hardened and ground steel. xternal sufaces zinc plated. Cavity C-8- (see Section M) Standard housing materials Aluminum (up to bar) or Steel (add 77 suffix for steel option) Torque Cartridge into Cavity 45 Nm ( lbs ft) Temperature range - to 9 C (- to 94 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code BS / (5 micron nominal) Weight cartridge only,7 kg (.7) Internal leakage. ml/min nominal (5 dpm) Nominal Viscocity Range 5 to 5 cst Seal kits SK4 Buna N SK4V Viton Viton is a registered trademark of.i. DuPont Description This is a direct acting, poppet style screw in cartridge relief valve, it is an economical solution for small flow systems where a fast response is required. Pressure override curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

13 DR - Relief valve Poppet, direct acting L/min (8 USgpm) 4 bar (58 psi) Model code DR** P W 4 S 4 5 Function DR - DR5 - Cartridge and body Adjustment P - Leakproof screw adjustment R - Handknob adjustment G - Tamperproof cap (see page -7 for dimensions) Port size - bodied valves only Code Port size Housing number Aluminium Steel W /4 BSP A485 W /8 BSP A4 A475 6T /8 SA A5676 A484 See section J for housing details. 4 Pressure range at 4.8 L/min Note: Code based on pressure in bar bar (-45 psi) - std setting at 7 barr - 5- bar (5- psi) - std setting at bar bar (75-58 psi) - std setting at 8 bar 5 Seal material S - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) Dimensions mm (inch) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Hex socket adjust 4. A/F Installation drawing 7. A/F 6. (.6). (4.74) (DR5-P-4S). (4.6) max (DR5-P-S/S) 5. (.97) 44. (.7). (.) 7. (.76) max (4S) 5. (.5) max (S/S) 5.4 A/F holes Ø6.8 (.7) thro 44.8 (.76) 5.8 (.).7 (.5) 8.8 (.) 5.9 (.6).8 (.5) 6. (.) Tank () /4-6 UNF Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Pressure () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

14 RV- - Relief valve Poppet, direct acting L/min (8 USgpm) 5 bar (6 psi) Operation This valve remains closed from port to port until the predetermined setting has been reached at port. The poppet is unseated and allows flow out of port. Features Fast acting, low pressure rise. Low internal leakage, high flow rate for compact design Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (6 psi) Cartridge fatigue pressure (infinite life) 5 bar (6 psi) Rated flow L/min (8 USgpm) Internal leakage. L/min (5 85% of Pressure Setting Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only, kg (.48 lbs) Seal kits 5658 Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a direct acting, poppet style screw in cartridge relief valve ideal for low cost small flow applications to limit the pressure in the system. Pressure override curves A Flow - L/min (/8 cst 49 C) Inlet pressure - psi B C 5 5 Inlet pressure - bar A - 6 spring B - 8 spring C - 9 spring Flow - USgpm (5 SUS F) -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

15 RV- - Relief valve Poppet, direct acting L/min (8 USgpm) 5 bar (6 psi) Model code RV(A) (V) * (*) ** **/ ** Function RV - Relief valve - Standard RVA - Relief valve - with / thickness back-up ring on each side of o-ring (for cross port relief applications) 6 Port size Code Port size Housing Number Aluminum Light duty Aluminum Fatigue rated Steel Fatigue rated B /8 BSPP Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components Size - size G /4 BSPP G /8 BSPP H SA Seal material Blank - Buna-N V - Viton 8H SA T SA T SA 8 75 See section J for housing. 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Valve housing material Blank - Aluminum S - Steel 7 Cracking pressure range Note: Code based on pressure in psi. -,5- bar (5- psi) bar (-9 psi) bar (5-8 psi) - 4- bar (6- psi) bar (8-6 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: -7 bar ( psi).5-7,4 bar (5 psi) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Dimensions mm (inch) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Installation drawing (Aluminum) C Adjustment 9, (.75) hex I Adjustment S Adjustment F Adjustment 8, (.) K Adjustment Ø 8, (.5) 8.8 (.) 5, (.8) X 7. (.8) 6.5 (.5) 9. (.75),8 (.5).875"-4 Thd. Ø 5,8 (.6) 5,4 (.) hex 9.5 (.7) 6.5 (.5) 9. (.75) 5.4 (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

16 RV- - Relief valve Poppet, direct acting 4 L/min ( USgpm) 5 bar (5 psi) Operation This valve remains closed from port to port until the predetermined setting has been reached at port. The poppet is unseated and allows flow out of port. Features Hardened and ground working parts. Low leakage poppet design. High flow rate for a compact cartridge. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at, cst ( SUS) and 49 C ( F) Typical application pressure (all ports) Cartridge fatigue pressure (infinite life) Rated flow Cracking pressure ranges Temperature range 5 bar (5 psi) 5 bar (5 psi) 4 L/min ( USgpm),4-75 bar (5-4 psi) -4 to C (-4 to 48 F) Cavity C-- or C--U Fluids All general purpose hydraulic fluids such as: MIL-H-566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Standard housing materials Weight cartridge only Seal kit Viton is a registered trademark of.i. DuPont ndurance tested to million cycles at full rated flow and pressure. Aluminum or Steel,49 kg (.8 lbs) (Buna-N) (Viton ) Description This is a direct acting, poppet style screw in cartridge relief valve ideal for low cost applications to limit the pressure in the system. Pressure override curves A - 4 spring B - spring C spring D -.5 spring Pressure Drop - psi Flow - L/min A B C 7 D GPM Pressure drop - bar -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

17 RV- - Relief valve Poppet, direct acting 4 L/min ( USgpm) 5 bar (5 psi) Model code RV (V) X ( * ) *** (U) **/ ** ** Function RV - Relief valve Size - size Seal material Blank - Buna-N V - Viton 6 Port size Code Port size Housing number C-- Aluminum fatigue rated C--U Aluminum fatigue rated C-- Steel fatigue rated C--U Steel fatigue rated 4G / BSPP G /4 BSPP T SA T SA See section J for housing. 4 Adjustment C - Cap K - Knob F - Factory set S - Screw 5 Valve housing material Omit for cartridge only A - Aluminum S - Steel 7 Cavity Blank - Cavity without undercut U - Cavity with undercut 8 Cracking pressure range Note: Code based on pressure in psi..5 -,4-7 bar (5-5 psi) bar (-85 psi) 9 Setting pressure Within ranges in 8 Blank - Normal factory setting at approximate mid-range. Optional - User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Special features - None (Only required if valve has special features, omitted if. ) - -5 bar (- psi) bar (6-4 psi) Dimensions mm (inch) Torque cartridge in housing A Nm (6-7 ft. lbs) S - -5 Nm (75-85 ft. lbs) Installation drawing (Steel) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). 95,4 (.75) /4 hex 95.4 (.75) /6 - UN - A.7 (.5).7 (.5) 44,7 (.76) 88.9 (.5) 6.5 (.5) 8.7 (.) ADJUSTMNT COD C Ø,7 -,77 ( ) 6.5 (.5) 88.9 (.5) X Ø. (.46) 5.4 (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

18 RV5- - Relief valve Spool, pilot operated 4 L/min ( USgpm) 5 bar (5 psi) Operation When the inlet pressure exceeds the setting of the valve, the pilot section opens, causing a small flow across the orifice in the main spool. The subsequent pressure drop moves the spool against a light spring opening a ring of radial holes in the sleeve, allowing relief flow to tank. Features High accuracy of pilot operated design. Hardened working parts give long, reliable, trouble-free life. Cartridge construction for installation into your own manifold. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 4 L/min ( USgpm) Internal leakage, port to port Cavity 4 cc/min (7cu 5 bar (5 psi) C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only, kg (.48 lbs) Seal kits RV5 RV5A 5658 Buna N Viton Buna N Viton Viton is a registered trademark of.i. DuPont Description To limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows. Pressure override curves Tank pressure = 4 Flow - L/min (,8 cst 49 C) A 8 Inlet pressure - psi B 4 7 Inlet pressure - bar A - 5 spring B - spring Flow - USgpm (5 SUS F) -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

19 RV5- - Relief valve Spool, pilot operated 4 L/min ( USgpm) 5 bar (5 psi) Model code RV5 A (V) * (S) ** **/ ** Function RV5 - Relief valve Cage seals Blank - Single back-up ring as shown A - / thickness back-up ring on each side of o-ring (for cross port relief applications) Size Blank - Buna-N 4 Seal material Blank - Buna-N V - Viton 7 Port size Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated B /8 BSPP 7546 G /4 BSPP G /8 BSPP H SA H SA T SA T SA 8 75 HH SA * KH SA ** Cracking pressure range Note: Code based on pressure in psi. -,4- bar (5- psi) bar (- psi) bar (5-5 psi) bar (5-5 psi) 9 Setting pressure Within ranges in 8 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 5 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw * Bolt on, dual cross over relief valve package for aton H or T series motors ** Bolt on, dual cross over relief valve package for aton series motors (Note: Two cartridges are installed in this special housing, both are set to the same crack pressure specified in model Code position 9, maximum allowed setting is bar ( psi), only available with RV5A option and aluminum housing.) See section J for housing details. Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components 6 Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) C Adjustment 9, (.75) hex Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Installation drawing (Steel) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). I Adjustment S Adjustment F Adjustment 8, (.) K Adjustment, Ø 8, (.5) 8. (.) 5, (.8) 5,4 (.) hex X 7. (.8) 6.5 (.5) 9. (.75),8 (.5).875"-4 Thd. Ø 5,8 (.6) 9.5 (.7) 6.5 (.5).7 (.5). (.87) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

20 RV- - Relief valve Spool, pilot operated 9 L/min (5 USgpm) 5 bar (5 psi) Operation When the inlet pressure exceeds the setting of the valve, the pilot section opens, causing a small flow across the orifice in the main spool. The subsequent pressure drop moves the spool against a light spring opening a ring of radial holes in the sleeve, allowing relief flow to tank. Features High accuracy of pilot operated design. Hardened working parts give long, reliable, trouble-free life. Cartridge construction for installation into your own manifold. Performance data Sectional view Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 9 L/min (5 USgpm) Reseat pressure More than 9% of crack pressure Hysteresis Internal leakage, port to port Less than bar (45 psi) cc/min (8cu in/min@5 bar) (5 psi) Overshoot Less than % of max. press. range with flow step of USgpm at pressure rise rate of, psi/sec Repeatability +/- % maximum pressure range Cavity C or C- U Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only, kg (.68 lbs) Seal kits Viton is a registered trademark of.i. DuPont Buna N Viton Description To limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows. Pressure override curves Flow - L/min (,8 cst 49C) Inlet pressure - psi Inlet pressure - bar Cartridge w/c-- Cavity Cartridge w/c--u Cavity Flow - USgpm (5 SUS F) - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

21 Model code RV (V) * ( * ) *** **/ ** RV- - Relief valve Spoo l, pilot operated 9 L/min (5 USgpm) 5 bar (5 psi) Function RV - Relief valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment S - Screw C - Cap K - Knob 5 Valve housing material A - Aluminum S - Steel Dimensions mm (inch) 6 Port size Code Port size Housing number 7 Cracking pressure range Note: Code based on pressure in psi bar (5-5 psi) - 7- bar (5- psi) 5*- 4-5 bar (5-5 psi) *Must be ordered as a cartridge only or with a steel housing. C-- Aluminum fatigue rated C--U Aluminum fatigue rated 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) C-- Steel fatigue rated C--U Steel fatigue rated T SA T SA G / BSPP G /4 BSPP See section J for housing. Torque cartridge in housing A Nm (6-7 ft. lbs) S - -5 Nm (75-85 ft. lbs) 9 Special features - None (Only required if valve has special features, omitted if. ) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Installation drawing (Steel) C Adjustment K Adjustment S Adjustment 4,8 (.8) hex 9. (.75) hex,7 (.5) hex 76, (.) Nominal 7, (.88) Nominal.7 (.5) 7.9 (.87) (.) (.5).6"- Thd. 44,7 (.76) 88.9 (.5) 6.5 (.5) 8.7 (.) 6.5 (.5) 88.9 (.5) X Ø. (.46) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

22 AR - Relief valve Spool, pilot operated 5 L/min (4 USgpm) 4 bar (58 psi) Operation When the inlet pressure exceeds the setting of the valve, the pilot section opens, causing a small flow across the orifice in the main spool. The subsequent pressure drop moves the spool against a light spring opening a ring of radial holes in the sleeve, allowing relief flow to tank. Features High accuracy of pilot operated design. Hardened working parts give long, reliable, trouble-free life. Cartridge construction for installation into your own manifold. Sectional view Performance data Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow Max settingar Cartridge material Body material Mounting position 5 L/min (4 USgpm) 4 bar (58 psi) Working parts hardened and ground steel. xternal surfaces zinc plated. Standard aluminium (up to bar*). Add suffix 77 for steel option. Unrestricted Cavity A88 (See Section M) Tank () Pressure () Torque cartridge into cavity 6 Nm (44 lbs ft) WeightAR AR5 AR55.4 kg (. lbs).65 kg (.4 lbs).9 kg (. lbs) Seal kit SK64 (Nitrile) SK64V (Viton ) Recommended filtration level BS554/4 class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F) Leakage to 65 milliliters/min nominal Nominal viscosity range 5 to 5 cst Description To limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows. Pressurep - psi Viton is a registered trademark of.i. DuPont Pressure drop curves Flow - L/min Flow - US gpm Pressure - bar - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

23 AR - Relief valve Spool, pilot operated 5 L/min (4 USgpm) 4 bar (58 psi) Model Code AR*** P W 4 S 4 5 Function AR - Cartridge Only AR45 - Cartridge and Body AR5/AR55 - Cartridge and Body Through ported Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port size Code Port Size Housing number - body only Aluminium AR45 Aluminium AR5 Steel AR5 Aluminium AR55 Steel AR55 W /8 BSP C84 4W / BSP B485 C44 C59 6W /4 BSP B954 C86 C497 8W BSP B67 B4596 6T /8 SA B784 8T / SA B94 C74 T /4 SA B944 B56 B74 6T SA B7 B44 4 Pressure range Note: Code based on pressure in bar bar. Std setting 5 bar - - bar. Std setting bar bar. Std setting 8 bar 5 Se als S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code AR Note: For applications above Hex socket adjust 4. A/F Complete valve /, /4 Ports Basic Code AR45 holes ø9. (.5) thro. (.5) 5.8 (.) 4.8 (5.6) max 5. (.8) 89. (.5) 54. (.) max 7. A/F 8.5 A/F Complete valve /8, /, /4 Ports Basic Code AR5 9. (.75) 5.8 (.). (.9) holes Ø8.7 (.4) thro 9. (.75) 8. (.5).7 (.5) 5.4 (.) -4 UNS-A (.8) (.6) 5.8 (.).8 (.5) 5. (.8) 6. (.5) 8. (.5) 45.4 (5.7) max 5.8 (.) 56.7 (.) TANK () Complete valve Ports Basic Code AR (.99). (.94) 54. (6.6) max 8. (.5). (.6) 49. (.94) Pressure () 5.8 (.) 5.4 (.) holes Ø. (.4) thro 7.9 (.) 6. (.7) 76. (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

24 RV5-6 - Relief valve Spool, pilot operated L/min (8 USgpm) 5 bar (5 psi) Operation When the inlet pressure exceeds the setting of the valve, the pilot section opens, causing a small flow across the orifice in the main spool. The subsequent pressure drop moves the spool against a light spring opening a ring of radial holes in the sleeve, allowing relief flow to tank. Features High accuracy of pilot operated design. Hardened working parts give long, reliable, trouble-free life. Cartridge construction for installation into your own manifold. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow L/min (8 USgpm) Internal leakage, port to port 64 cc/min (cu in/min@5 bar (5 psi) Cavity C-6 Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,7 kg (.57 lbs ) Seal kits 8896 Buna N Viton Viton is a registered trademark of.i. DuPont Description To limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows. Pressure override curves Inlet pressure - psi Flow - L/min (,8 cst 49 C) A B Inlet pressure - bar A - 6 spring B - 5 spring Flow - USgpm (5 SUS F) -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

25 RV5-6 - Relief valve Spool, pilot operated L/min (8 USgpm) 5 bar (5 psi) Model Code RV5 6 (V) * (S) ** **/ ** Function RV5 - Relief valve Size 6-6 size Seal material Blank - Buna-N V - Viton 4 Adjustment S - Screw C - Cap K - Knob 5 Valve housing material Blank - Aluminum S - Steel 6 Port size Code Port size Housing number Aluminium light duty Aluminium fatigue rated Steel fatigue rated 6B /4 BSPP G / BSPP G /4 BSPP H SA H SA 866 T SA 754 T SA See section J for housing. 7 Cracking pressure range Note: Code based on pressure in psi bar (5- psi) bar (-6 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in housing A - 8- Nm (8-9 ft. lbs) S Nm (- ft. lbs) Installation drawing (Steel) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). C Adjustm ent 6, (.7) S Adjustm ent 6, (.5)hex 57, (.5) K A djustm ent 57. (.5) 8.4 (.) 5.4 (.) 8, (.5)hex 6.5 (.5) 44,4 (.75)."- Thd. 76. (.) X. (.4) Ø 8,55 (.4).7 (.5) 6.5 (.5) 88.9 (.5) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

26 ARD - Shockless relief valve Pilot relief valve L/min (6 USgpm) bar ( psi) Operation System pressure acts on the pilot section of the valve. When the setting is reached the pilot section opens and pilot flow is passed through the centre of the dampening piston and through an orifice to tank. The flow through the orifice causes the dampening piston to compress the main spring to increase the setting. The rate of movement of the dampening piston is determined by the size of the orifice and the level of dampening by the distance moved by the dampening piston. The amount of dampening can be adjusted by the adjust screw that changes the stroke of the dampening piston. Adjusting the valve clockwise reduces the amount of dampening. Features High accuracy of the pilot operated design and flexibility of the adjustable dampening. Hardened working parts give long, reliable trouble free life. Cartridge construction allows for mounting into or onto the actuator where it can be most effective. Sectional view Performance data Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (6 USgpm) Max relief setting bar ( psi) Response time at max dampening. secs at max flow Cartridge material Working parts hardened and ground steel. xternal steel surfaces zinc plated. Mounting position Unrestricted Cavity number A88 Torque cartridge into cavity 6 Nm (44 ft lbs) Weight.4 kg (.9 lbs) Seal kit number SK 4 Buna N / SK4V Viton Recomended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature -º to +9ºC (-º - +94ºF) Leakage millilitres/min nominal Nominal viscosity range 5-5 cst Viton is a registered trademark of.i. DuPont Typical max dampening performance curve Pressure drop curve Description The ARD is designed to remove pressure spikes in a system by providing dampening on initial opening. The level of dampening is adjustable but the setting is fixed with increments of bar with a tollerance of +/- bar. This valve is ideal for use on rotating machinery where pressure spikes may be evident on start up or reversing. -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

27 ARD - Shockless relief valve Pilot relief valve L/min (6 USgpm) bar ( psi) Model code ARD N 4W S 4 5 Function ARD - Cartridge Only Adjustment means N - Fixed For fixed versions add setting in bar increments to end of part number +/- bar tollerance Port size Code Port size Housing number Aluminium Steel W /8 BSPP C84 4W / BSPP C44 C59 6W /4 BSPP C86 C497 6T SA 6 B784 8T SA 8 C74 T SA B56 B74 4 Pressure range - 5- bar. (75 - psi) Setting fixed bar increments with +/- bar tollerance at lts/min 5 Seals S - Buna N (For use with most industrial hydraulic fluids) SV - Viton (For high temperature and most fluid applications) Dimensions mm (inch) Basic Code ARD Warning Aluminium housings can be used for bar ( psi) Steel housings must be used for operating pressure above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

28 RV4- - Relief valve Poppet, thermal relief with reverse flow check L/min (.5 USgpm) relief/45 L/min ( USgpm) check 5 bar (5 psi) Operation As a check valve the valve remains closed until the pressure at port exceeds the.4 bar (8 psi) cracking pressure. The valve will hold pressure in port until the setting of the thermal relief is reached. Flow will then take place from port to. This flow should be limited to that produced due to the thermal expansion of the oil in port. Features Very low leakage from port to. Hardened and ground working parts. Good re-seat. Compact solution in a single cartridge. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) Rated flow check valve relief valve Relief cracking pressure ranges 5 bar (5 psi) 45 L/min ( USgpm) L/min (.5 USgpm) 8-5 bar (4-5 psi) Check valve cracking pressure,4 bar (8 psi) Reseat pressure More than 9% of cracking pressure Internal leakage, port to port. ml/min (5 drops/min) at cracking pressure Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only Seal kits Viton is a registered trademark of.i. DuPont, kg (.5 lbs) 5658 Buna N Viton Description This is a check valve with a built in thermal relief. It is ideal for protecting actuators from damage when ambient temperatures cause the locked in oil pressure to increase. The thermal relief is limited to 4 L/ min ( USgpm) and should not be over-flowed. Pressure override & free flow curves Pressure Override - psi 5 4 Thermal Relief (port -port ) Flow L/min (,8 cst 49 C) Pressure Override - bar Pressure Drop - psi Free Flow (port -port ) Flow L/min (,8 cst 49 C) Pressure Drop - bar Flow - USgpm (5 SUS F) Flow - USgpm (5 SUS F) -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

29 RV4- - Relief valve Poppet, thermal relief with reverse flow check L/min (.5 USgpm) relief/45 L/min ( USgpm) check 5 bar (5 psi) Model code RV4 (V) F (S) ** 5/ ** Function RV - Check valve with thermal relief Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment F - Factory Set 6 Port size Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated B /8 BSPP 7546 G /4 BSPP G /8 BSPP H SA H SA T SA T SA 8 75 See section J for housing. 5 Valve housing material 7 Cracking pressure 8 Setting pressure 9 Special features Blank - Aluminum S - Steel range Note: Code based on pressure in psi bar (4-5 psi) Within ranges in 7 User must specify settings in 7 bar ( psi) steps, Coded as in the following examples: - 7 bar ( psi) - None (Only required if valve has special features, omitted if. ) 5-75 bar (5 psi) Dimensions mm (inch) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Installation drawing (Steel) 9. (.75) 9, (.75) 5,4 (.)hex X 7. (.8) 6.5 (.5) 9. (.75),7 (.5).875"-4 Thd. 9.5 (.7) 6.5 (.5).7 (.5). (.87) Ø 5,8 (.6) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

30 RV- - Relief valve Poppet, pilot operated with reverse flow check -4 L/min (- USgpm) 5 bar (5 psi) Operation When the inlet reaches the valve setting, the pilot section opens, causing a small flow across the orifice in the poppet. The subsequent pressure drop moves the poppet, opening the valve, allowing relief flow to tank. Features Very low pressure rise for any increase in flow giving accurate pressure control. Hardened working parts give long, reliable, trouble-free life. Cartridge construction giving maximum flexibility in mounting. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow range 4 L/min ( USgpm) Internal leakage. ml/min (5 85% of Pressure Setting Reverse free flow check bar (45 psi) Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only, kg (.48 lbs) Seal kits 5658 Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a pilot operated relief valve with an integral free flow check designed to limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows With integral reverse flow check. Pressure override curves Tank pressure = Inlet pressure - psi 4 Flow - L/min (,8 cst 49 C) A B Inlet pressure - bar Pressure drop - psi PRSSUR DROP FOR RVRS FLOW CARTRIDG ONLY Flow - L/min (,8 cst 49 C) ,5 Pressure drop - bar Flow - USgpm (5 SUS F) Flow - USgpm (5 SUS F) A - 5 Spring B - Spring - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

31 RV- - Relief valve Poppet, pilot operated with reverse flow check -4 L/min (- USgpm) 5 bar (5 psi) Model code RV (V) * ( * ) ** **/ ** Function RV- Relief valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) 6 Port size Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated B /8 BSPP 7546 G /4 BSPP G /8 BSPP H SA H SA T SA T SA 8 75 See section J for housing. 7 Cracking pressure range Note: Code based on pressure in psi. -,5- bar (5- psi) bar (- psi) bar (5-5 psi) bar (5-5 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) 9 Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). C Adjustm ent 9, (.75)hex Installation drawing (Steel) I Adjustm ent S Adjustm ent K A djustm ent Ø 8, (.5) F Adjustm ent 8, (.) 8. (.) 5, (.8).875"-4 Thd. 5,4 (.)hex X 7. (.8) 6.5 (.5) 9. (.75),8 (.5).7 (.5) Ø 5,8 (.6) 9.5 (.7) 6.5 (.5). (.75) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

32 ARC - Relief valve Spool, pilot operated with reverse flow check 5 L/min (4 USgpm) 4 bar (58 psi) Operation When the inlet reaches the valve setting, the pilot section opens, causing a small flow across the orifice in the spool. The subsequent pressure drop moves the spool, opening a ring of radial holes in the sleeve, allowing relief flow to tank. Features Very low pressure rise for any increase in flow giving accurate pressure control. Hardened working parts give long, reliable, trouble-free life. Cartridge construction giving maximum flexibility in mounting. Sectional view Performance data Tank () Pressure () Ratings and specifications Performance data is typical with fluid at cst (5 SUS) Rated flow 5 L/min (4 USgpm) Max setting 4 bar (58 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight ARC.4 kg (. lbs) ARC45.54 kg (. lbs) ARC5.65 kg (.4 lbs) ARC55.9 kg (. lbs) Seal kit SK64 (Nitrile) SK64V (Viton ) Recommended filtration level Operating temp Leakage Nominal viscosity range Viton is a registered trademark of.i. DuPont BS554/4 Class 8/ (5 micron nominal) - C to +9 C (- to +94 F) 5 8 bar 5 to 5 cst Description This is a pilot operated relief valve with an integral free flow check designed to limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows With integral reverse flow check. Pressure drop curves Pressure - psi Flow - L/min Free flow Flow - US gpm Pressure - bar Pressure - psi Flow - L/min Flow - US gpm Pressure - bar - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

33 ARC - Relief valve Spool, pilot operated with reverse flow check 5 L/min (4 USgpm) 4 bar (58 psi) Model code ARC*** P W 4 S 4 5 Function ARC - Cartridge Only ARC45 - Cartridge and Body ARC5 /ARC55 - Cartridge and Body Through ported Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Dimensions mm (inch) Basic Code ARC Note: For applications above bar, please consult our technical department or use the steel body option. Port size Code Port size Housing number - body only Aluminium AR45 Aluminium AR5 W /8 BSP C84 Steel AR5 4W / BSP B485 C44 C59 6W /4 BSP B954 C86 C497 Aluminium AR55 Steel AR55 8W BSP B67 B4596 6T /8 SA B784 8T / SA B94 C74 T /4 SA B944 B56 B74 6T SA B7 B44 Hex socket adjust 4. A/F Complete valve /, /4 Ports Basic Code ARC45 holes ø9. (.5) thro 4 Pressure range Note: Code based on pressure in bar bar. Std setting 5 bar - - bar. Std setting bar bar. Std setting 8 bar Std setting made at 4 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications). (.5) 5.8 (.) 4.8 (5.6) max 5. (.8) 89. (.5) 7. A/F 9. (.75) 5.8 (.). (.9) 9. (.75) 8. (.5) 54. (.) max 8.5 A/F Complete valve /8, /, /4 Ports Basic Code ARC5 holes Ø8.7 (.4) thro 5.4 (.).7 (.5) (.6) (.8) 5. (.8) 45.4 (5.7) max -4 UNS-A 5.8 (.).8 (.5) 6. (.5) 8. (.5) 5.8 (.) 8. (.5) 56.7 (.) Tank () Complete valve Ports Basic Code ARC (.99). (.94) 54. (6.6) max. (.6) 49. (.94) Pressure () 5.8 (.) 5.4 (.) holes Ø. (.4) thro 7.9 (.) 6. (.7) 76. (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

34 RV8-8 - Relief valve Poppet, differential area L/min (8 USgpm) 5 bar (5 psi) Operation The RV8-8 remains closed until the predetermined setting is reached at port. The force created by the pressure acting on the differential poppet area lifts the poppet off the seat and allows flow from port to port. Features Hardened and ground working parts. Low leakage poppet design. High flow rate for a compact cartridge. Sectional view Performance data Ratings and specifications Description The RV8-8 is a direct acting differential area, poppet type, screw-in cartridge relief valve. Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 8 bar (4 psi) Rated flow L/min (8 USgpm) Cracking pressure ranges 5:,4- bar (5-5 psi) : 7- bar (- psi) 5: 7-5 bar (-5 psi) Internal leakage, port to port Less than 5 8% of cracking pressure Temperature range -4 to C (-4 to 48 F) Cavity C-8- Fluids All general purpose hydraulic fluids such as: MIL-H-566, SA, SA etc. Filtration Cleanliness code 8/6/ Housing material (standard) Aluminum or steel Weight including coil, kg (.4 lbs) Seal kit (Buna-N), (Viton ) Viton is a registered trademark of.i. DuPont Pressure drop Flow - L/min (,8 cst 49 C) A 45 Inlet Pressure - psi 4 B 7 4 Inlet Pressure - bar C Flow - USgpm (5 SUS F) A - 5 spring B - spring C - 5 spring -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

35 RV8-8 - Relief valve Poppet, differential area L/min (8 USgpm) 5 bar (5 psi) Model code RV8 8 (V) * (*) ** ** / ** Function RV8- Relief valve Size 8-8 size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob S - Screw 5 Valve housing material Omit for cartridge only S - Steel A - Aluminum 6 Port size Code Port size Housing number Aluminum Fatigue rated Steel Fatigue rated 4T SA T SA T SA G /4 BSPP G /8 BSPP *Light duty housing. See section J for housing details. 7 Cracking pressure ranges 5 -,4- bar (5-5 psi) - 7- bar (- psi) bar (-5 psi) 8 Pressure setting Optional - Specify in psi increments. If not specified, set at: 5-5 bar (75 psi) - bar (5 psi) 5-75 bar (5 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) Note: Use J series, W coils with this solenoid valve. For valve dimensions with manual override option installed see page A-98. Dimensions mm (inch) Torque cartridge in aluminum or steel housing 4-4 Nm (5- ft lbs) C Adjustment Torque to -6 Nm (4-8 ft. lbs) 4, hex (.5) S Adjustment K option knob Ø,8 (.5) nominal,7 (.5) hex Torque to -6 Nm (4-8 ft. lbs), (.87) hex 5,8 (.) 67,8 (.67) 7,6 (.85) Full out 76,5 (.) 8,5 (.) Full out.75"-6 Thd. Warning Warning 7,8 (.9) Ø,6 (.497) Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Maintain 5-8 Nm (4-6 ft lbs) maximum torque on valve tube nut. Over tightening may cause valve failure. aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

36 RV- - Relief valve Poppet, direct acting, differential area 76 L/min ( USgpm) 5 bar (6 psi) Operation This valve remains closed from port to until the predetermined setting has been reached at port. The pressure acts on the differential area between the seat and the seal diameter on the poppet. Features Hardened and ground working parts. Low leakage poppet design. High flow rate for a compact cartridge. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (6 psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow 76 L/min ( USgpm) Internal leakage. ml/min (5 85% of Pressure Setting Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only, kg. (.48 lbs.) Seal kits RV 5658 Buna N Viton RVA (with double backup rings) Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a fast, direct acting differential area screw-in cartridge relief valve. The valve is ideal for the protection against shock pressures that can damage actuators. Pressure override curves Tank pressure = 4 Flow - L/min (,8 cst 49 C) Inlet pressure - psi A B 4 7 Inlet pressure - bar A - 6 spring B - 8 spring C - 6 spring C 5 5 Flow - USgpm (5 SUS F) -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

37 RV- - Relief valve Poppet, direct acting, differential area 76 L/min ( USgpm) 5 bar (6 psi) Model code RV A (V) * (*) ** **/ ** Function RV - Relief valve Cage seals Blank - Single back-up ring A - / thickness back-up ring on each side of o-ring (for cross port relief applications) Size - size 4 Seal material Blank - Buna-N V - Viton 5 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 6 Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) 7 Port size o - Code Port size Housing number Aluminum light duty Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Aluminum fatigue rated Warning Steel fatigue rated B /8 BSPP 7546 G /4 BSPP G /8 BSPP H SA H SA T SA T SA 8 75 HH SA * KH SA ** * Bolt on, dual cross over relief valve package for aton H or T series motors ** Bolt on, dual cross over relief valve package for aton series motors (Note: Two cartridges are installed in this special housing, both are set to the same crack pressure specified in model Code position 9, maximum allowed setting is bar ( psi), only available with RVA option and aluminum housing.) See section J for housing details. Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Installation drawing (Steel) 8 Cracking pressure range N ote: Code based on pressure in psi. -,5- bar (5- psi) bar (-6 psi) bar (-9 psi) bar (-8 psi) bar (6-6 psi) 9 Setting pressure Within ranges in 8 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components C Adjustment 9, (.75) hex I Adjustment S Adjustment F Adjustment 8, (.) K Adjustment Ø 8, (.5) 8.8 (.) 5, (.8) 5,4 (.) hex X 7. (.8) 6.5 (.5) 9. (.75).875"-4 Thd.,8 (.5) Ø 5,8 (.6) 9.5 (.7) 6.5 (.5).7 (.5). (.57) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

38 RV8- - Relief valve Poppet, direct acting, differential area 76 L/min ( USgpm) 5 bar (5 psi) Operation This valve remains closed from port to until the predetermined setting has been reached at port. The pressure acts on the differential area between the seat and the seal diameter on the poppet. Features Hardened and ground working parts. Low leakage poppet design. High flow rate for a compact cartridge. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 76 L/min ( USgpm) Internal leakage. ml/min (5 85% of Pressure Setting Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only, kg (.48 lbs) Seal kits RV Buna N Viton RV8A Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a fast, direct acting differential area screw-in cartridge relief valve. The valve is ideal for the protection against shock pressures that can damage actuators. Pressure override curves Tank pressure = A - 5 spring B - spring C - spring Inlet pressure - psi 4 Flow - L/min (,8 cst 49 C) Flow - USgpm (5 SUS F) A B C Inlet pressure - bar -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

39 RV8- - Relief valve Poppet, direct acting, differential area 76 L/min ( USgpm) 5 bar (5 psi) Model code RV8 A (V) * (S) ** **/ ** Function RV8 - Relief valve Cage seals Blank - Single back-up ring as shown A - / thickness back-up ring on each side of o-ring (for cross port relief applications) Size - size 7 port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated B /8 BSPP 7546 G /4 BSPP G /8 BSPP H SA H SA T SA T SA Seal material Blank - Buna-N V - Viton 5 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 6 Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) See section J for housing. C Adjustment 9, (.75) hex 8 Cracking pressure range Note: Code based on pressure in psi. 4 -,45- bar (5-45 psi) bar (-5 psi) bar (5-5 psi) bar (55-5 psi) 9 Setting pressure Within ranges in 8 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Installation drawing (Steel) Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). I Adjustment S Adjustment F Adjustment 8, (.) K Adjustment Ø 8, (.5) 8.8 (.) 5, (.8) 5,4 (.) hex X 7. (.8) 6.5 (.5) 9. (.75).875"-4 Thd.,8 (.5) Ø 5,8 (.6) 9.5 (.7) 6.5 (.5).7 (.5). (.57) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

40 RV- - Relief valve Poppet, direct acting, differential area L/min (5 USgpm) 5 bar (5 psi) Operation This valve remains closed from port to until the predetermined setting has been reached at port. The pressure acts on the differential area between the seat and the seal diameter on the poppet. Features Hardened and ground working parts. Low leakage poppet design. High flow rate for a compact cartridge. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow L/min (5 USgpm) Cracking pressure ranges,4-75 bar (5-4 psi) Temperature range -4 to C (-4 to 48 F) Cavity C-- or C--U Fluids All general purpose hydraulic fluids such as: MIL-H-566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Standard housing materials Aluminum or steel Weight cartridge only,49 kg (.8 lbs) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of.i. DuPont ndurance tested to million cycles at full rated flow and pressure. Description This is a fast, direct acting differential area screw-in cartridge relief valve. The valve is ideal for the protection against shock pressures that can damage actuators. Pressure drop curves A - 4 spring B - spring C spring D -.5 spring Pressure Drop - psi Flow - L/min (,8 cst 49 F) A B C D Flow - USgpm (5 SUS F) Inlet pressure - bar -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

41 RV- - Relief valve Poppet, direct acting, differential area L/min (5 USgpm) 5 bar (5 psi) Model code RV (V) * (*) *** (U) **/ ** ** Function RV - Relief valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob F - Factory set S - Screw 5 Valve housing material Omit for cartridge only A - Aluminum S - Steel Dimensions mm (inch) 6 Port size Code Port size Housing number C-- Aluminum Fatigue rated C--U Aluminum Fatigue rated Torque cartridge in housing A Nm (6-7 ft. lbs) S - -5 Nm (75-85 ft. lbs) C-- Steel Fatigue rated C--U Steel Fatigue rated 4G / BSPP G /4 BSPP T SA T SA See section J for housing. 7 Cavity Blank - Cavity without undercut U - Cavity with undercut 8 Cracking pressure range Note: Code based on pressure in psi..5 -,4-7 bar (5-5 psi) bar (-85 psi) - -5 bar (- psi) bar (6-4 psi) 9 Setting pressure Within ranges in 8 Blank - Normal factory setting at approximate mid-range. Optional - User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Special features - None (Only required if valve has special features, omitted if. ) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Installation drawing (Steel) 95.4 (.75) -/4 HX.7 (.5) 95.4 (.75) 8.7 (.) 44.7 (.76) -/6 - UN - A (.5) (.5).7 (.5) 88.9 (.5) X Ø. (.46) 6.5 (.5) 5.4 (.) 5.8 (.) Ø ( ) Adjustment Code C aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

42 RV8- - Relief valve Poppet, direct acting, differential area L/min (5 USgpm) 5 bar (5 psi) Operation This valve remains closed from port to until the predetermined setting has been reached at port. The pressure acts on the differential area between the seat and the seal diameter on the poppet. Features Hardened and ground working parts. Low leakage poppet design. High flow rate for a compact cartridge. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at, cst ( SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow L/min (5 USgpm) Cracking Pressure Range,4-75 bar (5-4 psi) Internal leakage. ml/min (5 85% of Pressure Setting Cavity C- or C- U Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only.4 kg (.94 lbs) Seal kits 5658 Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a fast, direct acting differential area screw-in cartridge relief valve. The valve is ideal for the protection against shock pressures that can damage actuators. Pressure drop curves A - 5 spring B - 5 spring C - spring D - 4 spring Pressure Drop - (PSI) Flow - L/min (,8 cst 49 F) A B C D Flow - USgpm (5 SUS F) Pressure drop - bar -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

43 RV8- - Relief valve Poppet, direct acting, differential area L/min (5 USgpm) 5 bar (5 psi) Model code RV8 (V) X (*) *** (U) **/ ** ** Function RV - Relief valve Size - size Seal material Blank - Buna-N V - Viton 6 Port size Code Port size Housing number C-- Aluminum fatigue rated C--U Aluminum fatigue rated C-- Steel fatigue rated C--U Steel fatigue rated 4G / BSPP G /4 BSPP T SA T SA See section J for housing. 4 Adjustment C - Cap K - Knob S - Screw 5 Valve housing material Omit for cartridge only A - Aluminum S - Steel Dimensions mm (inch) 7 Cavity Blank - Cavity without undercut U - Cavity with undercut 8 Cracking pressure range Note: Code based on pressure in psi. 4 -,4-5 bar (5-5 psi) bar (-5 psi) bar (-5 psi) bar (6-5 psi) 9 Setting pressure Within ranges in 8 Blank - Normal factory setting at approximate mid-range. Optional - User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Torque cartridge in housing A Nm (6-7 ft. lbs) S - -5 Nm (75-85 ft. lbs) Special features - None (Only required if valve has special features, omitted if. ) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi) (.6) Installation Drawing (Steel) 8. (.).7 (.5) 8.7 (.) -/6 - UN - A (.75) (.5) (.5) X Ø. (.46).7 (.5) 88.9 (.5) 6.5 (.5) 5.4 (.) 5.8 (.) Ø ( ) ADJUSTMNT COD S aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

44 RV8-6 - Relief valve Poppet, direct acting, differential area - L/min (8-8 USgpm) 5 bar (5 psi) Operation This valve remains closed from port to until the predetermined setting has been reached at port. The pressure acts on the differential area between the seat and the seal diameter on the poppet. Features Hardened and ground working parts. Low leakage poppet design. High flow rate for a compact cartridge. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow - L/min (8-8 USgpm) Cavity C-6 Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,7 kg (.57 lbs) Seal kits 5658 Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a fast, direct acting differential area screw-in cartridge relief valve. The valve is ideal for the protection against shock pressures that can damage actuators. Pressure override curves Inlet pressure - psi Flow - L/min (,8 cst 49 C) A B Inlet pressure - bar A - 5 spring B - 5 spring Flow - USgpm (5 SUS F) -44 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

45 RV8-6 - Relief valve Poppet, direct acting, differential area - L/min (8-8 USgpm) 5 bar (5 psi) Model code RV 6 (V) * (S) ** **/ ** Function RV- Relief valve Size 6-6 size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob S - Screw 6 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated 6B /4 BSPP G / BSPP G /4 BSPP H SA H SA 866 T SA 754 T SA See section J for housing. 5 Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) 7 Cracking pressure range Note: Code based on pressure in psi. 5 -,5-5 bar (5-5 psi) bar (- psi) bar (-5 psi) bar (-5 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Torque cartridge in housing A - 8- Nm (8-9 ft. lbs) S Nm (- ft. lbs) Installation drawing (Steel) 9 Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). S Adjustment 9,5 (.7) hex K Adjustment 4, (4.9) 9. (.75) hex 4. (4.9) 8, (.5) hex 5.4 (.) 44,4 (.75)."- Thd. 6.5 (.5) 76. (.) Ø 8,55 (.4).7 (.5) 6.5 (.5) 88.9 (.5) X. (.4) 5.4 (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

46 LR - Relief valve Poppet, direct acting, differential area 8 L/min ( USgpm) 5 bar (5 psi) Operation Pressure acts over the differential area between the seat and seal on the poppet. When the pressure exceeds the setting, the valve opens, allowing relief flow to tank, washing contaminant away from the seat. Features Dirt tolerant, robust and consistent with good pressure rise to increase in flow characteristics for a direct acting valve. Cartridge construction provides for maximum flexibility in mounting. Sectional view Performance data Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Pressure () Tank () Rated flow 8 L/min ( USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity A6 (See Section M) Torque cartridge into cavity 5 Nm ( lbs ft) Weight LR.4 kg (. lbs)) LR5.8 kg (4.6 lbs) Seal kit SK7 (Nitrile) SK7V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to 94 F Leakage millilitre/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a fast, direct acting differential area screw-in cartridge relief valve. Ideal for intermittent duty as protection against overload or surge conditions for all types of actuators. Very fast acting and extremely dirt tolerant. Pressure drop curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar -46 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

47 LR - Relief valve Poppet, direct acting, differential area 8 L/min ( USgpm) 5 bar (5 psi) Model code LR*** F W 5 S 4 5 Function LR - Cartridge Only LR5 - Cartridge and Body Adjustment means F - Screw Adjustment Port size Code Port size Housing number Aluminium Steel W /4 BSP B54 B88 T /4 SA B778 B55 4 Pressure range Note: Code based on pressure in bar bar. Std setting bar bar. Std setting 8 bar Std setting made at L/min Dimensions mm (inch) Basic Code LR Note: Tightening torque of F adjuster locknut - to 5 Nm. Note: For applications above bar please consult our technical department or use the steel body option. Installation drawing /4 Ports Basic Code LR5 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 4 (4.9) approx 8 (8.9) max 8. (.) 7.7 (.48) 56.4 A/F -5/8- UN-A 8. (.5) 4. (4.9).. (.6) (.6) 6.5 (.5) 65. (.56) 76. (.) holes Ø9. (.5) thro 7. (.76) Pressure () Tank () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

48 UAR - Relief valve Spool, pilot operated, unloading 5L/min (4 USgpm) 5 bar (5 psi) Operation System pressure acts on the pilot section of the valve. When the valve setting is reached, the pilot section opens and the pilot flow causes the spool to move back uncovering the radial vent port. The main section then opens fully with pilot flow passing through the vent port. When the system pressure is reduced to zero the valve will close. Features High accuracy of pilot operated design. Hardened working parts give long, reliable, trouble-free life. Cartridge construction for installation into your own manifold. Sectional view Performance data Tank () Pressure () Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min (4 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight UAR.4 kg (. lbs) UAR45.4 kg (.75 lbs) UAR5.65 kg (.4 lbs) UAR55.9 kg (. lbs) Seal kit SK64 (Nitrile) SK64V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- to +94 F) Leakage milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description The off-loading (kick-down) relief valve opens to unload a hydraulic system if the system pressure exceeds the valve setting. It acts as a fuse to protect persons and machinery where prolonged operation at excess pressure cannot be tolerated. Pressure drop curves Flow - L/min Unloaded 7 Pressure - psi Pressure - bar Flow - US gpm -48 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

49 UAR - Relief valve Spool, pilot operated, unloading 5L/min (4 USgpm) 5 bar (5 psi) Model code UAR*** P W 5 S 4 5 Function UAR - Cartridge Only UAR45 - Cartridge and Body UAR5 - Cartridge and Body Through Ported UAR55 - Cartridge and Body Through Ported Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Dimensions mm (inch) Basic Code UAR Port size Code Port size Housing number - body only Aluminium UAR45 Note: For applications above bar, please consult our technical department or use the steel body option. Aluminium UAR5 Hex socket adjust 4. A/F Steel UAR5 Complete valve /, /4 Ports Basic Code UAR45 Aluminium UAR55 holes ø9. (.5) thro Steel UAR55 W /8 BSP C84 4W / BSP B485 C44 C59 6W /4 BSP B954 C86 C497 8W BSP B67 B4596 6T /8 SA B784 8T / SA B94 C74 T /4 SA B944 B56 B74 6T SA B7 B44 4 Pressure range Note: Code based on pressure in bar bar. Std setting 5 bar - - bar. Std setting bar bar. Std setting bar Std setting made at 4 L/min 5 Seals S -. (.5) 5.8 (.) Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 4.8 (5.6) max 5. (.8) 89. (.5) 7. A/F 9. (.75) 5.8 (.). (.9) 9. (.75) 8. (.5) 54. (.) max 8.5 A/F Complete valve /8, /, /4 Ports Basic Code UAR5 holes Ø8.7 (.4) thro 5.4 (.).7 (.5) -4 UNS-A (.6) (.8) 5. (.8) 45.4 (5.7) max 5.8 (.).8 (.5) 6. (.5) 8. (.5) 5.8 (.) 8. (.5) 56.7 (.) Tank () Complete valve Ports Basic Code UAR (.99). (.94) 54. (6.6) max. (.6) 49. (.94) Pressure () 5.8 (.) 5.4 (.) holes Ø. (.4) thro 7.9 (.) 6. (.7) 76. (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

50 GR - Relief valve Spool, direct acting L/min (8 USgpm) 6 bar ( psi) Operation The valve is held closed by the spring until pressure on the piston overcomes the valve setting, allowing relief flow to tank through a ring of radial holes. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Tank () Pressure () Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cstt (5 SUS) Rated flow L/min (8 USgpm) Max setting 6 bar ( psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight GR. kg (.7 lbs) GR5.54 kg (. lbs) GR6.9 kg (. lbs) Seal kit SK9 (Nitrile) SK9V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F ) Leakage 5 milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a direct acting spool type screw in cartridge relief valve. Ideal for low pressure applications, giving good control with fairly constant flow. Also very quiet in operation when applied on low flow or unstable hydraulic systems. Pressure drop curves Pressure - psi Flow - L/min GR Flow - US gpm Pressure - bar -5 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

51 GR - Relief valve Spool, direct acting L/min (8 USgpm) 6 bar ( psi) Model code GR** P W 6 S 4 5 Basic code GR - Cartridge Only GR5 - Cartridge and Body GR6 - Cartridge and Body Through Ported Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Dimensions mm (inch) Port size Code Port size Housing number - body only Aluminium GR5 Aluminium GR6 Steel GR6 W /8 BSP C84 4W / BSP B485 C44 C59 6W /4 BSP B954 C86 C497 6T /8 SA B784 8T / SA C74 T /4 SA B56 B74 4 Pressure range Note: Code based on pressure in bar bar. Std setting 5 bar bar. Std setting 55 bar Std setting made at 4.8 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Basic Code GR 54. (.) max 56.7 (.) Pressure () Hex socket adjust 4.A/F Tank () 7. A/F 8.5 A/F -4 UNS-A Complete valve /8, /, /4 Ports Basic Code GR (.8) (.6) 5.8 (.) Complete Valve /, /4 Ports Basic Code GR (.75) holes Ø8.7 (.4) thro.8 (.5) 8.5 (.).7 (.5) 5. (.8). (5.) max 5.9 (.6).8 (.5) 6. (.5) 5.8 (.) 5.4 (.) 8. (.5) 8. (.5) 76. (.) 46. (5.75) max aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

52 GR6 - Relief valve Spool, direct acting 6 L/min (6 USgpm) 4 bar (6 psi) Operation The valve is held closed by the spring until pressure on the piston overcomes the valve setting, allowing relief flow to tank through a ring of radial holes. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Ratings and specifications Tank () Pressure () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 6 L/min (6 USgpm) Max setting 4 bar (6 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity CVA-- (See Section M) Torque cartridge into Cavity 45 Nm ( lbs ft) Weight GR6.8 kg (.4 lbs) GR65.6 kg (.8 lbs) GR66.48 kg (. lbs) Seal Kit SK696 (Nitrile) SK696V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal Operating temp - C to +9 C (- to +94 F) Leakage 5 bar Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a direct acting spool type screw in cartridge relief valve. Ideal for low pressure applications, giving good control with fairly constant flow. Also very quiet in operation when applied on low flow or unstable hydraulic systems. Pressure drop curves Flow - L/min Pressure - psi Flow - US gpm Pressure - bar -5 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

53 GR6 - Relief valve Spool, direct acting 6 L/min (6 USgpm) 4 bar (6 psi) Model code GR** P W 4 S 4 5 Function GR6 - Cartridge Only GR65 - Cartridge and Body GR66 - Cartridge and Body Through Ported Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Dimensions mm (inch) Basic Code GR6 5. (.5) max Port sizes Code Port size Housing number - body only Hex socket adjust 4. A/F 7. A/F 4. A/F Aluminium Steel Aluminium Steel GR65 GR65 GR66 GR66 W /8 BSP A758 A65 4W / BSP A85 B B47 6T /8 SA A78 8T / SA A78 A798 B78 B477 M x.5-6g Complete valve /8, / Ports Basic Code GR (.6) 55. (.7).8 (.5) Complete valve / Ports Basic Code GR66 hole Ø9. (.5) thro 5.9 (.6) 4 Pressure range Note: Code based on pressure in bar bar. Std setting bar bar. Std setting 8 bar Std setting made at 4 L/min 5 Seals S (.77) 7. (.8) Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications). (.9) 7. (4.) max 5. (.8) 5.8 (.) 6.5 (.44). (.) Pressure () Tank () 65. (.56) 49. (.9) 5.8 (.) 5..8). (.) 5.5 (.6) mounting holes Ø9. (.5) thro 5.4 (.) 5.8 (.) 7. (4.6) max aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

54 GR - Relief valve Spool, direct acting 5 L/min (4 USgpm) 4 bar (6 psi) Operation The valve is held closed by the spring until pressure on the piston overcomes the valve setting, allowing relief flow to tank through a ring of radial holes. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Tank () Pressure () Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cstt (5 SUS) Rated flow 5 L/min (4 USgpm) Max setting 4 bar (6 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight GR. kg (.7 lbs) GR45.54 kg (. lbs) GR5.9 kg (. lbs) GR55.8 kg (.4 lbs) Seal kit SK9 (Nitrile) SK9V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to 94 F) Leakage 5 milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a direct acting spool type screw in cartridge relief valve. Ideal for low pressure applications, giving good control with fairly constant flow. Also very quiet in operation when applied on low flow or unstable hydraulic systems. Pressure drop curves Pressure - psi Flow - L/min GR Pressure - bar Flow - US gpm -54 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

55 GR - Relief valve Spool, direct acting 5 L/min (4 USgpm) 4 bar (6 psi) Model code GR*** P W 6 S 4 5 Basic code GR - Cartridge Only GR45 - Cartridge and Body GR5 - Cartridge and Body Through Ported GR55 - Cartridge and Body Through Ported Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Dimensions mm (inch) Port size Code Port size Housing number - body only Aluminium GR45 Aluminium GR5 Steel GR5 Aluminium GR55 Steel GR55 W /8 BSP C84 4W / BSP B485 C44 C59 6W /4 BSP B954 C86 C497 8W BSP B67 B4596 6T /8 SA B784 8T / SA C74 T /4 SA B56 B74 6T SA B7 B44 4 Pressure 4.8 l/min Note: Code based on pressure in bar bar. Std setting 6 bar bar. Std setting bar bar. Std setting 8 bar Std setting made at 4.8 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Basic Code GR Note: For applications above bar, please consult our technical department or use the steel body option. Hex socket adjust 4.A/F Complete valve /, /4 Ports Basic Code GR45. (5.) max 8. (.5) 76. (.) 54. (.) max 7. A/F 8.5 A/F Complete valve /8, /, /4 Ports Basic Code GR (.75) 8.5 (.) holes Ø8.7 (.4) thro 5.9 (.6).8 (.5).7 (.5) 5.4 (.) -4 UNS-A (.8) (.6) 5.8 (.).8 (.5) 5. (.8) 6. (.5) 5.8 (.) 8. (.5) 46. (5.75) max 56.7 (.) Tank () Complete valve Ports Basic Code GR55. (.94) 76. (.99) 54. (6.6) max. (.6) 49. (.94) 8. (.5) Pressure () 5.8 (.) 5.4 (.) holes Ø. (.4) thro 7.9 (.) 6. (.7) 76. (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

56 VR - Relief valve Spool, ventable, pilot operated L/min (6 USgpm) 5 bar (5 psi) Operation When inlet pressure exceeds the setting of the valve, the pilot section opens. The pilot flow causes a pressure imbalance across the main section spool causing it to open, allowing relief flow to tank. When vented, pilot flow is referenced directly to tank, bypassing the pilot section. This flow through the vent causes a pressure imbalance, opening the main section and dumping the pump at minimum pressure drop. Features High accuracy of pilot operated design. Hardened working parts give long, reliable, trouble-free life. Ventable for versatility of application. Cartridge construction for installation into your own manifold. Sectional view Performance data Ratings and specifications Vent () Tank () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (6 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar). Add suffix 77 for steel option. Mounting position Unrestricted Cavity A46 (See Section M) Torque cartridge into cavity 75 Nm (55 lbs ft) Weight VR.46 kg (. lbs) VR5. kg (.5 lbs) Seal Kit SK75 (Nitrile) SK75V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F) Leakage 5 8 bar Nominal viscosity range 5 to 5 cst Pressure () Viton is a registered trademark of.i. DuPont Description This is a ventable, internally pilot operated relief valve designed to limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows. The vent feature can be used with remote pilot section for a two-pressure system or to allow manual or remote unloading of the pump. Pressure drop curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar Pressure - psi Flow - L/min Vented pressure drop Flow - US gpm Pressure - bar -56 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

57 VR - Relief valve Spool, ventable, pilot operated L/min (6 USgpm) 5 bar (5 psi) Model code VR*** P 8W 5 S 4 5 Function VR - Cartridge Only VR5 - Cartridge and Body Adjustment means P - Leakproof Screw Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port size Code Port size Housing number - body only Aluminium Steel 6W /4 BSP B477 B478 T /4 SA B785 B554 4 Pressure 4 l/min Note: Code based on pressure in bar. - - bar. Std setting bar bar. Std setting bar Std setting made at 4 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code VR Hex socket adjust 4. A/F Complete valve /4 Ports Basic Code VR5 55. (.7) max 7. A/F. A/F 4. (.57) 8. (.) 8. (.) 5. (5.9) max) (.7) ( (.7) G./4 (/4 sae) holes Ø9. (.5) thro -/8- UNF-A 8. (.5) 9. (.75) 68. ( (.) 6. (.6) Vent () Note: For applications above bar, please consult our technical department or use the steel body option. Note: Tightening torque of F adjuster locknut - to 5 Nm Tank () Pressure () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

58 VR - Relief valve Spool, ventable, pilot operated L/min (5 USgpm) 5 bar (5 psi) Operation When inlet pressure exceeds the setting of the valve, the pilot section opens. The pilot flow causes a pressure imbalance across the main section spool causing it to open, allowing relief flow to tank. When vented, pilot flow is referenced directly to tank, bypassing the pilot section. This flow through the vent causes a pressure imbalance, opening the main section and dumping the pump at minimum pressure drop. Features High accuracy of pilot operated design. Hardened working parts give long, reliable, trouble-free life. Ventable for versatility of application. Cartridge construction for installation into your own manifold. Sectional view Performance data Ratings and specifications Vent () Tank () Pressure () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (5 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated, Body material Standard aluminium (up to bar). Add suffix 77 for steel option. Mounting position Unrestricted Cavity A6 (See Section M) Torque cartridge into cavity Nm (7 lbs ft) Weight VR.74 kg (.6 lbs) VR5.8 kg (4. lbs Seal Kit SK7 (Nitrile) SK7V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F) Leakage 5 8 bar Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a ventable, internally pilot operated relief valve designed to limit pressure in a system. Good for continuous duty and accurate pressure control with constant or varying flows. The vent feature can be used with remote pilot section for a twopressure system or to allow manual or remote unloading of the pump. Pressure drop curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar Pressure - psi Flow - L/min Vented pressure drop Flow - US gpm Pressure - bar -58 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

59 VR - Relief valve Spool, ventable, pilot operated L/min (5 USgpm) 5 bar (5 psi) Model code VR*** F 8W 5 S 4 5 Function VR - Cartridge Only VR5 - Cartridge and Body Adjustment means P - Leakproof Screw Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port size Code Port size Housing number - body only Aluminium Steel 8W BSP B496 B497 6T SA B687 B555 4 Pressure 4 l/min Note: Code based on pressure in bar. - - bar. Std setting bar bar. Std setting bar Std setting made at 4 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code VR 4.5 (.59) max Hex Socket Adjust 4. A/F 7. A/F 8. A/F -5/6- UN-A Complete valve /4 Ports Basic Code VR5. (.79) (6.) (.8) max 5. (4.5) 5.8 (.) 5.4 (.). (.94). (.47) 76. (.) 8. (.5) holes Ø9. (.5) thro 44. (.7) 68. (.68) 8.5 (.) Vent () Note: For applications above bar, please consult our technical department or use the steel body option. Note: Tightening torque of F adjuster locknut - to 5 Nm. Tank () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

60 UL6 - Relief/unloading valve Spool, pilot operated 6 L/min (6 USgpm) 5 bar (5 psi) Sectional view Operation Inlet pressure is seen on the nose of the valve and system pressure (downstream of the system check valve) operates on the system pilot port. When pressure rises to the valve setting, the relief section opens and the system pressure acts on the pilot piston to hold the valve in the open position. Performance data The ratio between the pilot piston diameter and the seat diameter to the relief valve pilot section ensures that the valve will be maintained in the fully open position until the system pressure drops to approximately 85% of the unload pressure. Features Valves are available as cartridges for installation into special line bodies or into custom designed Hydraulic Integrated Circuits. (NOT: Provision must be made for a system check valve and a pilot line to signal the system pressure). Valve assemblies can be supplied complete in a line body for use in accumulator circuits. Bodied valves include a check valve and the required connection from the system to the valve pilot port. Pilot () Tank () Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 6 L/min (6 USgpm) Max setting 5 bar (5 psi) Differential Unload/Reload -5% Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard steel Mounting position Unrestricted Cavity number A46 (See Section M) Torque cartridge into cavity 75 Nm (55 lbs ft) Weight.46 kg (. lbs) Seal kit number SK45 (Nitrile), SK45V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F) Leakage 5 milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Inlet () Description These unloader valves are used to unload a pump, or pumps, to tank when pressure in a separate part of the circuit reaches a preset level. The valves will close, causing the circuit to reload, when the pressure drops to approximately 85% of the unload pressure. The most common application is to maintain a pressure in an accumulator which may be used in an emergency to operate an essential hydraulic function. (g, a brake circuit). The PUL** valve has a drain port to ensure correct valve function while allowing the bypassed oil to be used for a secondary circuit requirement. Pressure drop curves System working pressure - psi Typical valve performance 4 5 Time - seconds System working pressure - bar -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

61 Model code UL** P 4W 5 S 77 UL6 - Relief/unloading valve Spool, pilot operated 6 L/min (6 USgpm) 5 bar (5 psi) Function UL6 - UL65 - Cartridge and body Adjustment means P - Leakproof screw adjustment G - Tamperproof cap (See page -7 for dimensions) Dimensions mm (inch) Port size Code Port size Housing number - body only Aluminium Steel 4W / BSP BXP4-4W-S-77 8T / SA BXP4-8T-S 4 Pressure 4.8 l/min Note: Code based on pressure in bar bar. Std setting 75 bar bar. Std setting bar - 7- bar. Std setting bar 5 Seals S - Nitrile (for use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 6 Body material 77 - Steel Omit for aluminium (up to bar) Basic Code UL6 Hex socket adjust 4. A/F / Ports Basic Code UL65 With System Check 8. (.) 6. (.6) 55. (.7) max 7. A/F. A/F 4. (.6) 78. (.7) holes Ø9. (.5) thro 8. (.) 5. (4.5) 69 (6.65) approx UL6-P-*-S -/8- UNF-A 8. (.5) 9. (.75) 5. (.8) 56.7 (.) CA8-.5S 76. (.99) 59.5 (.4) Pilot () Note: For applications above bar ( psi) please consult over technical department or use the steel body option. (System) Tank () Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

62 PUL6 - Relief/unloading valve Spool, pilot operated 6 L/min (6 USgpm) 5 bar (5 psi) Sectional view 4 Operation Inlet pressure is seen on the nose of the valve and system pressure (downstream of the system check valve) operates on the system pilot port. When pressure rises to the valve setting, the relief section opens and the system pressure acts on the pilot piston to hold the valve in the open position. Performance data The ratio between the pilot piston diameter and the seat diameter to the relief valve pilot section ensures that the valve will be maintained in the fully open position until the system pressure drops to approximately 85% of the unload pressure. Features Valves are available as cartridges for installation into special line bodies or into custom designed Hydraulic Integrated Circuits. (NOT: Provision must be made for a system check valve and a pilot line to signal the system pressure). Valve assemblies can be supplied complete in a line body for use in accumulator circuits. Bodied valves include a check valve and the required connection from the system to the valve pilot port. Pilot (4) Drain () System () Inlet () Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 6 L/min (6 USgpm) Max setting 5 bar (5 psi) Differential Unload/Reload -5% Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard steel Mounting position Unrestricted Cavity number A88 (See Section M) Torque cartridge into cavity 75 Nm (55 lbs ft) Weight PUL6.46 kg (. lbs) PUL65.8 kg (.76 lbs) Seal kit number PUL6 SK75 (Nitrile), SK75V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F) Leakage 5 milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description These unloader valves are used to unload a pump, or pumps, to tank when pressure in a separate part of the circuit reaches a preset level. The valves will close, causing the circuit to reload, when the pressure drops to approximately 85% of the unload pressure. The most common application is to maintain a pressure in an accumulator which may be used in an emergency to operate an essential hydraulic function. (g, a brake circuit). The PUL6 valve has a drain port to ensure correct valve function while allowing the bypassed oil to be used for a secondary circuit requirement. Pressure drop curves System working pressure - psi Typical valve performance 4 5 Time - seconds System working pressure - bar -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

63 Model code PUL** P 4W 5 S 77 PUL6 - Relief/unloading valve Spool, pilot operated 6 L/min (6 USgpm) 5 bar (5 psi) Function PUL6 - PUL6 - Cartridge and body Adjustment means P - Leakproof screw adjustment G - Tamperproof cap (See page -7 for dimensions) Port sizes Code Port size Housing number - Sub Assembly Aluminium Steel 4W / BSP BXP446-4W-S-77 8T / SA BXP446-8T-S 4 Pressure 4.8 L/min Note: Code based on pressure in bar bar. Std setting 75 bar - 7- bar. Std setting bar bar. Std setting bar 5 Seals S - Nitrile (for use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 6 Body material 77 - Steel Omit for aluminium (up to bar) Dimensions mm (inch) Basic Code PUL6 55. (.7) max Note: For applications above bar ( psi) please consult over technical department or use the steel body option. Hex socket adjust 4. A/F 7. A/F. A/F / Ports Basic Code PUL65 With System Check holes Ø9. (.5) thro 4.5 (.7) 78. (.7). (.9) 95. (.74) 4. (.8) PUL6-P-*-S 68 (6.6) approx 5. (4.5) Pilot (4) -/8- UNF-A 9. (.75). (.9) 4. (.6) CA8-.5S 9.5 (.77) 76. (.) 59.5 (.4) Drain () Typical Connections Port Pressure Port System Port Accumulator Port 4 Drain (System) System () 4 Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

64 PUL - Relief/unloading valve Spool, pilot operated L/min (5 USgpm) 5 bar (5 psi) Sectional view 4 Operation Inlet pressure is seen on the nose of the valve and system pressure (downstream of the system check valve) operates on the system pilot port. When pressure rises to the valve setting, the relief section opens and the system pressure acts on the pilot piston to hold the valve in the open position. Performance data The ratio between the pilot piston diameter and the seat diameter to the relief valve pilot section ensures that the valve will be maintained in the fully open position until the system pressure drops to approximately 85% of the unload pressure. Features Valves are available as cartridges for installation into special line bodies or into custom designed Hydraulic Integrated Circuits. (NOT: Provision must be made for a system check valve and a pilot line to signal the system pressure). Valve assemblies can be supplied complete in a line body for use in accumulator circuits. Bodied valves include a check valve and the required connection from the system to the valve pilot port. Ratings and specifications Pilot (4) Drain () Outlet () Inlet () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (5 USgpm) Max setting 5 bar (5 psi) Differential unload/reload -5% Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard steel Mounting position Unrestricted Cavity number A45 (See Section M) Torque cartridge into cavity Nm (7 lbs ft) Weight PUL.74 kg (.6 lbs) PUL5 6.8 kg (4.96 lbs) Seal kit number PUL SK67 (Nitrile) SK67V (Viton ) PUL5 SK45 (Nitrile) SK45V (Viton) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- to 94 F) Leakage 5 bar Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description These unloader valves are used to unload a pump, or pumps, to tank when pressure in a separate part of the circuit reaches a pre-set level. The valves will close, causing the circuit to reload, when the pressure drops to approximately 85% of the unload pressure. The most common application is to maintain a pressure in an accumulator which may be used in an emergency to operate an essential hydraulic function. (g, a brake circuit). The PUL** valve has a drain port to ensure correct valve function while allowing the bypassed oil to be used for a secondary circuit requirement. Pressure drop curves System working pressure - psi Typical valve performance 4 5 Time - seconds System working pressure - bar -64 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

65 Model code PUL*** P 8W 5 S 77 PUL - Relief/unloading valve Spool, pilot operated L/min (5 USgpm) 5 bar (5 psi) Basic code PUL - PUL5 - Cartridge and body Adjustment means P - Leakproof screw adjustment G - Tamperproof cap (See page - for dimensions) Dimensions mm (inch) Port sizes - Bodied valves only Code Port size Housing number - Sub assembly Aluminium Steel 8W BSP /4 BSP Drain Port BXP466-8W-S-77 6T SA /4 SA Drain Port BXP466-6T-S BXP466-6-S-77 4 Pressure 4.8 L/min Note: Code based on pressure in bar. - - bar. Std setting bar bar. Std setting bar Note: For applications above bar please consult our technical department or use the steel body option. 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 6 Body material 77 - Steel Omit for aluminium (up to bar) Basic Code PUL Hex socket adjust 4. A/F Complete valve Port Basic Code PUL5 With System Check G 4 (System) 7. A/F 49. (.9) max 8. A/F 4. (.4) G /4 / 4T 9. (.5) 7. (.76) 5. (.59) 58. (.8) -5/6- UNS 4. (5.5) 89. (7.44) max. (4.8) G 8. (.9) Pilot (4) Drain (). (.94) 5.4 (.) 5.8 (.) 9. (.5) max holes Ø. (.4) thro 4.6 (4.) 6. (.4) max. (.8) 7.6 (.8) Outlet () Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

66 CLLR5 - Dual relief valve Poppet, direct acting, differential area 5 L/min ( USgpm) 5 bar (5 psi) Operation Pressure acts over one of two differential areas forcing the poppet back allowing relief flow to the other port. This being a single cartridge is ideal for mounting on to a motor in a special housing. Features Single cartridge relieving in both directions cutting down space requirements, giving full adjustment through its range on both pressures at the same time. Sectional view Performance data Ratings and specifications (P) (P) Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min ( USgpm) Max pressure 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal steel surfaces zinc plate. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number C-- (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight CLLR5. kg (.5 lbs) CLLR55.8 kg (.8 lbs)) Seal kit number SK64 (Nitrile) SK64V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F) Leakage 5 milliliters/min Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a direct acting bi-directional relief valve designed to protect both lines in a circuit from over pressurization by relieving oil to the other line. Ideal for use with motors or directional valves as an emergency relief. Differential area, fast acting, poppet valve. Pressure drop curves Pressure - psi Flow - L/min Pressure - bar Flow - US gpm -66 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

67 CLLR5 - Dual relief valve Poppet, direct acting, differential area 5 L/min ( USgpm) 5 bar (5 psi) Model code CLLR** F W 5 S Function CLLR5 - CLLR55 - Cartridge and body Adjustment means F - Screw adjustment Port sizes Code Port size Housing number - body only Aluminium Single W /8 BSP B95 Steel Single 4W / BSP B956 B6 8T / SA B94 4 Pressure range Note: Code based on pressure in bar bar. Std setting bar 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic code CLLR5 5. A/F hex Complete valve /8, / Ports Basic Code CLLR55 Screw in to increase pressure setting Screw out to decrease pressure setting 5.8 (.). A/F hex 67.4 (.65) 67.4 (.65) 5. A/F hex 7. (.8).5 (.) 9. (.75) 4. (.6) 8. (.5) 8.5 (.7) 6. (.6).8 (.5) 5.8 (.) 7/8-4 UNF-B Note: For applications above bar please consult our technical department or use the steel body option.. (.) (P) (P) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

68 CLLR - Dual relief valve Poppet, direct acting, differential area 5 L/min (4 USgpm) 5 bar (5 psi) Operation Pressure acts over one of two differential areas forcing the poppet back allowing relief flow to the other port. This being a single cartridge is ideal for mounting on to a motor in a special housing. Features Single cartridge relieving in both directions cutting down space requirements, giving full adjustment through its range on both pressures at the same time. Sectional view Performance data Pressure /tank () Pressure/tank () Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min (4 USgpm) Max pressure 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal steel surfaces black oxide. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A878 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight CLLR. kg (.5 lbs) CLLR5.8 kg (.8 lbs) CLLR55. kg (.4 lbs) Seal kit number SK64 (Nitrile), SK64V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - to +9 C (- to +94 F) Leakage 5 milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a direct acting bi-directional relief valve designed to protect both lines in a circuit from over pressurization by relieving oil to the other line. Ideal for use with motors or directional valves as an emergency relief. Differential area, fast acting, poppet valve. Pressure drop curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar -68 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

69 CLLR - Dual relief valve Poppet, direct acting, differential area 5 L/min (4 USgpm) 5 bar (5 psi) Model code CLLR*** F 6W 5 S 4 5 Basic code CLLR - CLLR5 - Cartridge and body CLLR55 - Cartridges and body through ported Adjustment means F - Screw adjustment Port sizes Code Port size Housing number - Body only Aluminium CLLR5 Steel CLLR5 Aluminium CLLR55 Steel CLLR55 6W /4 BSP B67 B564 B6 B747 8W BSP B69 B54 T /4 SA B449 B6 6T SA B87 B8 4 Pressure 4 l/min Note: Code based on pressure in bar bar. Std setting 8 bar 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code CLLR 67. (.64) max Hex socket adjust 5. A/F 5.4 A/F Complete valve /4. Ports Basic Code CLLR5.5 (.85) 9.4 (.6) 5.8 (.) 4. (5.8) max 8. (.5) 5.4 (.) 6. (.7).7 (.5) holes Ø.5 (.4) thro 5. (.) 76. (.) 7. (.87) 7/8-4 UNF-A Complete valve /4 Ports Basic Code CLLR55 holes Ø9. (.5) thro 8. (.5) Note: Tightening torque of F adjuster locknut - to 5 Nm Note: For applications above bar please consult our technical department or use the steel body option. 7. (.8). (.79) 5.8 (.) 9. (.4) 44.5 (.75). (.5) 5. (.) 76. (.) 57. (6.8) max 98. (.86) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

70 PSV-8 - Pressure sequence valve Spool, direct acting normally closed, internal drain L/min (6 USgpm) bar ( psi) Operation When a pre-set pilot pressure is reached the spool moves back against the spring opening the line between inlet and outlet. When the pilot pressure falls the valve will return to its normal position. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) Sequence pressure ranges Rated flow Reseat pressure bar ( psi),4 9 bar (5 psi) 5 bar (5 psi) L/min (6 USgpm) More than 9% of cracking pressure Internal leakage 8 cm /min. (5 in bar ( psi) Hysteresis less than bar (45 psi) Temperature range -4 to C (-4 to 48 F) Cavity C 8 Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Standard housing materials Aluminum Weight cartridge only Seal kits, kg (.47 lbs) 6755 Buna N 6756 Viton Viton is a registered trademark of.i. DuPont Description This valve provides a means of opening a pressure line when a predetermined pilot pressure is reached in a normally closed form. The valve can be used in any pilot or small flow system as a remotely operated sequence valve. Pressure drop curve Port to, valve fully open Pressure Drop - psi Flow - L/min (,8 cst 49ºC) Pressure Drop - bar Flow - USgpm (5 SUS ºF) -7 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

71 PSV-8 - Pressure sequence valve Spool, direct acting normally closed, internal drain L/min (6 USgpm) bar ( psi) Model code PSV 8 (V) * ( * ) ** **/ ** Function PSV - Pressure sequence Size 8-8 size 5 Valve housing material Omit for cartridge only A - Aluminum Maximum operating pressure bar ( psi) 7 Sequence pressure range Note: Code based on pressure in psi. -,4-9 bar (5- psi) - 5- bar (5- psi) 8 Pressure setting Optional - Specify in psi increments. If not specified, set at: - 44 bar (65 psi) - bar (5 psi) Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob S - Screw 6 Port size - Code Port size Housing number Aluminum Fatigue rated 4T SA T SA G /4 BSPP 679 G /8 BSPP 674 See section J for housing. 9 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in aluminum or steel housing 4-4 Nm (5- ft. lbs) "C"Adjustm ent,7 (.5) hex 5,8 (.) "S"Adjustm ent 4, (.5)hex 68, (.68) 7, (.8) Fu l out 76,5 (.) 79, (.) Fu l out K option knob Ø,8 (.5) nom inal, (.87) hex Installation drawing 9. (.75) 5.5 (.6) 54 (.) 67. (.65) 76.7 (.) 9. (.75) x7.4 (.8) 9.8 (.7).75" -6 Thd. 4,9 (.6).4 (.) (.) 6.5 (.5) Ø4, (.559) Ø5,8 (.6) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

72 PSV4-8 - Pressure sequence valve Spool, direct acting normally closed, internal drain 5 L/min (4 USgpm) 5 bar (5 psi) Operation When a pre-set pilot pressure is reached the spool moves back against the spring opening the line between inlet and outlet. When the pilot pressure falls the valve will return to its normal position. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Working pressure 5 bar. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 8 bar (4 psi) Rated flow 5 L/min (4 USgpm) Sequence pressure ranges 5 8 bar (4 5 psi),4 bar (5 psi) bar (8 5 psi) Reseat pressure More than 9% of cracking pressure Internal leakage 5 bar ( psi) Hysteresis less than bar (45 psi) Temperature range -4 to C (-4 to 48 F). Cavity C 8 Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Standard housing materials Aluminum or steel Weight cartridge only, kg (.47 lbs) Seal kits 6755 Buna N 6756 Viton Viton is a registered trademark of.i. DuPont Description This valve provides a means of opening a pressure line when a predetermined pilot pressure is reached in a normally closed form. The valve can be used in any pilot or small flow system as a remotely operated sequence valve. Pressure drop curve Port to, valve fully open Pressure Drop - psi Flow - L/min (,8 cst 49 C) Pressure Drop - bar 4 Flow in USgpm (5 SUS F) -7 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

73 PSV4-8 - Pressure sequence valve Spool, direct acting normally closed, internal drain 5 L/min (4 USgpm) 5 bar (5 psi) Model code PSV4 8 (V) * ( * ) ** **/ ** Function PSV4 - Pressure sequence valve Size 8-8 size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob S - Screw 5 Valve housing material Omit for cartridge only S - Steel A - Aluminum Dimensions mm (inch) 6 Port size - Code Port size Housing number 4T SA T SA G /4 BSPP G /8 BSPP See section J for housing details. 7 Sequence pressure range Note: Code based on pressure in psi bar (4-5 psi) - 4- bar (5- psi) bar (8-5 psi) 8 Pressure setting Optional - Specify in psi increments. If not specified, set at: 5-5 bar (75 psi) - bar (5 psi) Torque cartridge in aluminum or steel housing 4-4 Nm (5- ft. lbs) 9 Special features - None (Only required if valve has special features, omitted if. ) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). "C"Adjustm ent "S"Adjustm ent 4, hex (.5) K option knob Ø,8 (.5) nom inal Installation drawing (Steel),7 (.5) hex 5,8 (.) 68, (.68) 7, (.8) Fu l out 76,5 (.) 79, (.) Fu l out, (.87) hex 9. (.75) 5.5 (.6) 54 (.) 66.7 (.) 76.7 (.) x7.4 (.8) 9. (.75) 9.8 (.7).75" -6 Thd. 4,9 (.6).4 (.) 56.9 (.4) 6.5 (.5) Ø 4, (.559) Ø 5,8 (.6) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

74 PSV8- Pressure sequence valve Spool direct acting, normally open, external drain L/min (6 USgpm) bar ( psi) Operation When a pre-set pilot pressure is reached the spool moves back against the spring closing the line between inlet and outlet. When the pilot pressure falls the valve will return to its normal position. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. 4 Sectional view Performance data 4 Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Maximum sequence pressure 65 bar (4 psi) Rated flow L/min (6 USgpm) Cavity C- 4 Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,7 kg (.6 lbs) Seal kits Buna N 5668 Viton Viton is a registered trademark of.i. DuPont Caution When sudden pressure or velocity is applied at port, an orifice disc may be required. Description This valve provides a means of interrupting a pressure line when a predetermined pilot pressure is reached in a normally open form. The valve can be used in any pilot or small flow system as a remotely operated sequence valve. Pressure drop curve Port to, valve fully open Pressure Drop - psi 5 4 Flow - L/min (,8 cst 49 C) Pressure Drop - bar Flow in USgpm (5 SUS F) -74 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

75 PSV8- Pressure sequence valve Spool direct acting, normally open, external drain L/min (6 USgpm) bar ( psi) Model code PSV8 (V) * ** **/ ** Function PSV8 - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Port size - Code Port size Housing number 6Sequence pressure range Note: Code based on pressure in psi. -,5-4 bar (5- psi) bar (75-4 psi) Aluminum Light duty Aluminum Fatigue rated B /8 BSPP T SA G /4 BSPP G /8 BSPP H SA H SA See section J for housing bar (-6 psi) bar (- psi) bar (4-4 psi) 7 Setting pressure Within ranges in 6 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 8 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in housing Nm (5-4 ft. lbs) Installation drawing "S"Adjustm ent 4,8 (.8)hex "C"Adjustm ent 85, (.4) 6,9 (.44) 4 "K"Adjustm ent Ø 8, (.5) "I"Adjustm ent 7,9 (.)hex 5,4 (.) hex.875" -4 Thd. Ø 5,8 (.6) Ø 7,4 (.685) Ø 9. (.748) "F"Adjustm ent 58, (.8) 6.7 (.44) 5.4 (.) 8.8 (.) 76. (.) 88.9 (.5) 9.5 (.8) (.7) 7.4 (.8) 57.5 (.5) 76. (.).8 (.8) 5.4 (.) -Slots Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

76 PSV- - Pressure sequence valve Spool direct acting, normally open, external drain L/min (6 USgpm) bar ( psi) 4 Operation When a pre-set pilot pressure is reached the spool moves back against the spring opening the line between inlet and outlet. When the pilot pressure falls the valve will return to its normal position. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional view Performance data Ratings and specifications 4 Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Maximum sequence pressure 65 bar (4 psi) Rated flow L/min (6 USgpm) Cavity C- 4 Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,7 kg (.6 lbs) Seal kits Buna N 5668 Viton Viton is a registered trademark of.i. DuPont Caution When sudden pressure or velocity is applied at port, an orifice disc may be required. Description This valve provides a means of opening a pressure line when a predetermined pilot pressure is reached in a normally closed form. The valve can be used in any pilot or small flow system as a remotely operated sequence valve. Pressure drop curve Port to, valve fully open, spring omitted Flow - L/min (,8 cst 49 C) Pressure Drop - psi Pressure Drop - bar Flow - USgpm (5 SUS F) -76 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

77 PSV- - Pressure sequence valve Spool direct acting, normally closed, external drain L/min (6 USgpm) bar ( psi) Model code PSV (V) * ** **/ ** Function PSV - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Port size - Code Port size Housing number 6Sequence pressure range Note: Code based on pressure in psi. -,5-4 bar (5- psi) bar (75-4 psi) Aluminum light duty Aluminum fatigue rated B /8 BSPP T SA G /4 BSPP G /8 BSPP H SA H SA See section J for housing bar (-6 psi) bar (- psi) bar (4-4 psi) 7 Setting pressure Within ranges in 6 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 8 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in housing Nm (5-4 ft. lbs) Installation drawing "C"Adjustm ent 85, (.4) 6,9 (.44) "S"Adjustm ent 4,8 (.8)hex 4 "K"Adjustm ent Ø 8, (.5) "I"Adjustm ent 7,9 (.)hex 5,4 (.) hex.875 " -4 Thd. "F"Adjustm ent 58, (.8) 6.7 (.44) 5.4 (.) 8.8 (.) 76. (.) 88.9 (.5) 9.5 (.8) (.7) 7.4 (.8) 57.5 (.5) 76. (.).8 (.8) 5.4 (.) -Slots Ø 5,8 (.6) Ø 7,4 (.685) Ø 9. (.748) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

78 PSV- - Pressure sequence valve Spool, direct acting, normally closed, internal drain L/min (6 USgpm) bar ( psi) Operation When a pre-set pilot pressure is reached the spool moves back against the spring opening the line between inlet and outlet. When the pilot pressure falls the valve will return to its normal position. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Maximum sequence pressure 65 bar (4 psi) Rated flow L/min (6 USgpm) Cavity C- Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description This valve provides a means of opening a pressure line when a predetermined pilot pressure is reached in a normally closed form. Pressure drop curve 6 Flow - L/min (,8 cst 49 C) The valve can be used in any pilot or small flow system as a remotely operated sequence valve. Pressure Drop - psi 4 Pressure Drop - bar Flow - USgpm (5 SUS F) -78 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

79 PSV- - Pressure sequence valve Spool, direct acting, normally closed, internal drain L/min (6 USgpm) bar ( psi) Model code PSV (V) * ** ** / ** Function PSV - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated B /8 BSPP 758 6T SA G /4 BSPP G /8 BSPP H SA H SA See section J for housing. 6Sequence pressure range Note: Code based on pressure in psi. -,5-4 bar (5- psi) bar (-6 psi) bar (- psi) bar (4-4 psi) 7 Setting pressure Within ranges in 6 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 8 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in housing Nm (5-4 ft. lbs) "S"Adjustm ent 4,8 (.8)hex "C"Adjustm ent Installation drawing "I"Adjustm ent 58, (.8) "F"Adjustm ent 5,4 (.) hex 85, (.4) "K"Adjustm ent Ø 8, (.5) 5,4 (.)hex.4 (.88) 9. (.5) 8.8 (.) 6.5 (.5) X7,4 (.8) 5. (.8) 75,4 (.97) 46, (.8).875" -4 Thd. Ø 5,8 (.6) Ø 7,4 (.686) 5 (.97) 9.7 (.8) 57. (.4) 76. (.).4 (.88) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

80 PSV4- - Pressure sequence valve Spool, direct acting, normally closed, internal drain 5 L/min (4 USgpm) bar ( psi) Operation When a pre-set pilot pressure is reached the spool moves back against the spring opening the line between inlet and outlet. When the pilot pressure falls the valve will return to its normal position. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure, port and bar ( psi) Maximum sequence pressure, port 8 bar (56 psi) Cartridge fatigue pressure (infinite life) 65 bar (4 psi) Rated flow 5 L/min (4 USgpm) Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description This valve provides a means of opening a pressure line when a predetermined pilot pressure is reached in a normally closed form. Pressure drop curve Flow - L/min (,8 cst 49 C) 4 8 The valve can be used in any pilot or small flow system as a remotely operated sequence valve. Pressure Drop - psi Pressure Drop - bar 4 Flow - USgpm (5 SUS F) -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

81 PSV4- - Pressure sequence valve Spool, direct acting, normally closed, internal drain 5 L/min (4 USgpm) bar ( psi) Model code PSV4 (V) * (S) ** **/ ** Function PSV4 - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Valve housing material Blank - Aluminum S - Steel 6 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated B /8 BSPP 758 G /4 BSPP G /8 BSPP H SA H SA T SA T SA See section J for housing. 7 Sequence pressure range Note: Code based on pressure in psi. 5 -,5- bar (5-45 psi) bar (-9 psi) bar (-4 psi) bar (-8 psi) bar (5-56 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) "S"Adjustm ent 4,8 (.8)hex "C"Adjustm ent Installation drawing (aluminum) "F"Adjustm ent "I"Adjustm ent 85, (.4) "K"Adjustm ent Ø 8, (.5) 4,6 (.97) 8.8 (.) 58, (.8) 5,4 (.) hex 5,4 (.) hex 8,8 (.74) 57. (.5) X7,4 (.8) 4,8 (.7) 75,4 (.97) 46, (.8).875" -4 Thd. Ø 5,8 (.6) Ø 7,4 (.686) 5 (.97) 9.5 (.8) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) 57.5 (.5) 75.4 (.97) 5,4 (.) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

82 PSV- - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain L/min (6 USgpm) bar ( psi) Operation In the normal condition port is open to the tank port and port is blocked. When the pressure on port exceeds the setting of the valve port opens to port and port is blocked but must always be referenced to tank. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Maximum sequence pressure 65 bar (4 psi) Rated flow L/min (6 USgpm) Cavity C- Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description Direct acting sequence valves are ideal for diverting oil to a second circuit at a predetermined pressure as in clamp and drill circuits, or as a relief where the back pressure varies. By taking the drain line directly to tank, back pressure effects are negated. In the valves normal position the outlet is drained to tank. Pressure drop curve Pressure Drop - psi 6 4 Flow - L/min (,8 cst 49 C) Pressure Drop - bar Flow - USgpm (5 SUS F) -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

83 PSV- - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain L/min (6 USgpm) bar ( psi) Model code PSV (V) * ** **/ ** Function PSV - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Port size - Code Port size Housing number 6Sequence pressure range Note: Code based on pressure in psi. -,5-4 bar (5- psi) Aluminum fatigue rated Steel fatigue rated B /8 BSPP 758 6T SA G /4 BSPP G /8 BSPP H SA H SA See section J for housing details bar (-6 psi) bar (- psi) bar (4-4 psi) 7 Setting pressure Within ranges in 6 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 8 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in aluminum housing to Nm (5-4 ft. lbs) "I"Adjustm ent "F"Adjustm ent "K"Adjustm ent Ø 8, (.5) "S"Adjustm ent 4,8 (.8)hex "C"Adjustm ent 9, (.75)hex Installation drawing (Aluminum) 4,6 (.97) 8.8 (.) 5, (.97) 46, (.8) 9, (.75)hex 5,4 (.) hex.875" -4 Thd. 8, (.5) 8,8 (.74) 5 (.97) 57. (.5) 9.5 (.8) 57.5 (.5) 75.4 (.97) X7,4 (.8) 4,8 (.7) 5,4 (.) 75,4 (.97) Ø5,8 (.6) Ø7,4 (.685) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

84 PSV5- - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain 8 L/min ( USgpm) bar ( psi) Operation In the normal condition port is open to the tank port and port is blocked. When the pressure on port exceeds the setting of the valve port opens to port and port is blocked but must always be referenced to tank. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) 9 bar (8 psi) Maximum sequence pressure 8 bar (56 psi) Rated flow 8 L/min ( USgpm) Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Pressure drop curve Description Direct acting sequence valves are ideal for diverting oil to a second circuit at a predetermined pressure as in clamp and drill circuits, or as a relief where the back pressure varies. By taking the drain line directly to tank, back pressure effects are negated. In the valves normal position the outlet is drained to tank. Pressure Drop - psi Flow - L/min (,8 cst 49 C) Pressure Drop - bar Flow - USgpm (5 SUS F) -84 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

85 PSV5- - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain 8 L/min ( USgpm) bar ( psi) Model code PSV5 (V) * ( * ) ** **/ ** Function PSV5 - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob I - Internal F - Factory set S - Screw 5 Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) 6 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated B /8 BSPP 758 G /4 BSPP G /8 BSPP H SA H SA T SA T SA See section J for housing. 7 Sequence pressure range Note: Code based on pressure in psi. 5 -,5- bar (5-45 psi) bar (-9 psi) bar (-4 psi) bar (-8 psi) bar (5-56 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi)steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) 58, (.8) 46, (.8) "F"Adjustm ent "I"Adjustm ent "S"Adjustm ent 4,8 (.8)hex 5,4 (.) hex 85, (.4).875"-4 Thd. Ø 5,8 (.6) Ø 7,4 (.686) "C"Adjustm ent "K"Adjustm ent Ø 8, (.5) 5,4 (.)hex Installation drawing (Aluminum) 4,6 (.97) 8,8 (.74) 5 (.97) 8.8 (.) 57. (.5) 9.5 (.8) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) 57.5 (.5) 75.4 (.97) X7,4 (.8) 4,8 (.7) 5,4 (.) 75,4 (.97) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

86 PSV- - Pressure sequence valve Spool, direct acting, normally closed, internal or external pilot/drain L/min (6 USgpm) bar ( psi) Operation The valve is normally closed until a pre-determined pressure is applied to port. The spool then shifts and allows flow from port to port. When port is pressurized the spool shifts to allow flow from port to port. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at, cst ( SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Maximum sequence pressure 65 bar (4 psi) Rated flow L/min (6 USgpm) Cavity C- Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description Direct acting sequence valves are ideal for diverting oil to a second circuit at a predetermined pressure as in clamp and drill circuits, or as a relief where the back pressure varies. By taking the drain line directly to tank, back pressure effects are negated. Pressurizing port will allow free flow from port to port. Pressure drop curve Pressure Drop - psi 6 4 Flow - L/min (,8 cst 49 C) Pressure Drop - bar Flow - USgpm (5 SUS C) -86 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

87 PSV- - Pressure sequence valve Spool, direct acting, normally closed, internal or external pilot/drain L/min (6 USgpm) bar ( psi) Model code PSV (V) * ** **/ ** Function PSV - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated B /8 BSPP 758 6T SA G /4 BSPP G /8 BSPP H SA H SA See section J for housing. 6Sequence pressure range Note: Code based on pressure in psi. -,5-4 bar (5- psi) bar (75-4 psi) bar (-6 psi) bar (- psi) bar (4-4 psi) 7 Setting pressure Within ranges in 6 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 8 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in aluminum housing to Nm (5-4 ft. lbs) "S"Adjustm ent 4,8 (.8)hex "C"Adjustm ent Installation drawing "F"Adjustm ent "I"Adjustm ent 85, (.4) "K"Adjustm ent Ø 8, (.5) 4,6 (.97) 85. (.4) 58, (.8) 5,4 (.) hex 5,4 (.)hex 8,8 (.74) 57. (.5) X7,4 (.8) 4,8 (.7) 75,4 (.97) 46, (.8).875"-4 Thd. 5 (.97) 9.5 (.8) 57.5 (.5) 75.4 (.97) 5,4 (.) Ø 5,8 (.6) Ø 7,4 (.686) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

88 PSV7- - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain L/min (6 USgpm) bar ( psi) Operation As with the direct acting relief valves, when the pressure exceeds the spring force, the spool moves back, opening the inlet to outlet. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Maximum sequence pressure 5 bar (8 psi) Rated flow L/min (6 USgpm) Cavity C- Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description Direct acting sequence valves are ideal for diverting oil to a second circuit at a predetermined pressure as in clamp and drill circuits, or as a relief where the back pressure varies. By taking the drain line directly to tank, back pressure effects are negated. Pressure drop curve Pressure Drop - psi 6 4 Flow - L/min (,8 cst 49 C) Pressure Drop - bar Flow - USgpm (5 SUS F) -88 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

89 PSV7- - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain L/min (6 USgpm) bar ( psi) Model code PSV7 (V) * ** **/ ** Function PSV7 - Pressure sequence valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Port size - Code Port size Housing number 6Sequence pressure range Note: Code based on pressure in psi. -,5- bar (5-5 psi) - 5- bar (75- psi) Aluminum light duty Aluminum fatigue rated B /8 BSPP 758 6T SA G /4 BSPP G /8 BSPP H SA H SA See section J for housing bar (-45 psi) bar (-95 psi) bar (-8 psi) 7 Setting pressure Within ranges in 6 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 8 Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components Dimensions mm (inch) Torque cartridge in aluminum housing to Nm (5-4 ft. lbs) "S"Adjustm ent "C"Adjustm ent Installation drawing "F"Adjustm ent "I"Adjustm ent 8, (.5) "K"Adjustm ent Ø 8, (.5) 4,6 (.97) 8.8 (.) 5, (.8) 5,4 (.) hex 5,4 (.) hex 8,8 (.74) 57. (.5) X7,4 (.8) 4,8 (.7) 75,4 (.97) 46, (.8).875 " -4 Thd. 5 (.97) 9.5 (.8) 57.5 (.5) 75.4 (.97) 5,4 (.) Ø 5,8 (.6) Ø 7,4 (.685) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

90 DS - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain L/min (8 USgpm) 4 bar ( psi) Operation As with the direct acting relief valves, when the pressure exceeds the spring force, the spool moves back, opening the inlet to outlet. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Ratings and specifications Drain () Sequenced () Inlet () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (8 USgpm) Max setting 4 bar ( psi) Cartridge material Working parts hardened and ground steel. xternal steel surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight DS.8 kg (.6 lbs) DS5.88 kg (.94 lbs) Seal kit number SK77 (Nitrile) SK77V (Viton) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- to 94 F) Leakage 5 milliliters/min nominal 5 milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont * For applications above bar please consult our technical department or use the steel body option. Description Direct acting sequence valves are ideal for diverting oil to a second circuit at a predetermined pressure as in clamp and drill circuits, or as a relief where the back pressure varies. By taking the drain line directly to tank, back pressure effects are negated. Pressure drop curves Pressure - psi Flow - L/min DS Flow - US gpm Pressure - bar -9 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

91 Model code DS** P W 4 S DS - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain L/min (8 USgpm) 4 bar ( psi) 4 5 Basic code DS - Cartridge Only DS5 - Cartridge and Body Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port sizes - bodied valves only 4 Pressure range Code Port size Housing number Aluminium Steel 4W / BSP. /4 BSP Drain Port B48 B457 6T /8 SA. /4 SA Drain Port B79 8T / SA. /4 SA Drain Port 4.8 l/min Note: Code based on pressure in bar bar Std setting 5 bar bar Std setting 7 bar 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code DS Hex socket adjust 4.A/F Complete valve /8, / Ports Basic Code DS5 9. (.54) max) 7. A/F 8.6 A/F 5.8 (.) 5.4 (.) 47. (5.78) max 5. (.97). (.4) Drain () holes Ø. (.4) thro 8. (.) 49. (.94) 5.4 (.) -4 UNS (.) (.5) 7. (.8) 88. (.49) 8. (4.5) Sequenced () Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

92 DS6 - Pressure sequence valve Spool. direct acting, normally closed, internal pilot, external drain 6 L/min (6 USgpm) 4 bar (58 psi) Operation As with the direct acting relief valves, when the pressure exceeds the spring force, the spool moves back, opening the inlet to outlet. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Ratings and specifications Drain () Sequence () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 6 L/min (6 USgpm) Max pressure 4 bar (58 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number CVA--6- (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight DS6.6 kg (.5 lbs) DS65.5 kg (. lbs) Seal kit number SK68 (Nitrile), SK68V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- to 94 F) Leakage 5 milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Inlet () * For applications above bar please consult our technical department or use the steel body option. Description Direct acting sequence valves are ideal for diverting oil to a second circuit at a predetermined pressure as in clamp and drill circuits, or as a relief where the back pressure varies. By taking the drain line directly to tank, back pressure effects are negated. Pressure drop curves Flow - L/min Pressure - psi Orifice curve Flow - US gpm Pressure - bar -9 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

93 DS6 - Pressure sequence valve Spool. direct acting, normally closed, internal pilot, external drain 6 L/min (6 USgpm) 4 bar (58 psi) Model code DS** P W 4 S 4 5 Basic code DS6 - Cartridge Only DS65 - Cartridge and Body DS66 - Cartridge and Body Through Ported Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Dimensions mm (inch) Port sizes - bodied valves only Code Port size Housing number 4 Pressure 4,8 l/min Note: Code based on pressure in psi. - bar Std setting 5 bar bar Std setting 5 bar Std setting made at 4.8 liters/min Aluminium DS65 Steel DS65 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Aluminium DS66 Steel DS66 W /8 BSP /4 BSP Drain B75 B77 4W / BSP /4 BSP Drain B85 B48 B48 6T /8 SA /4 SA Drain B796 8T / SA /4 SA Drain B797 B8 Basic Code DS6 Hex socket adjust 4. A/F Complete valve /8, / Ports Basic Code DS65 8. (.5). (.9. ( (.7) 6. (.4) max 7. A/F 7. A/F 78. (.7) 58. (.8) 4. (4.49) max M x.5-6g.8 (.5) 5.9 (.6) holes Ø9. (.5) thro 6.5 (.5) 5. (.8) Drain () Complete valve / Ports Basic Code DS (.) 7. (.8) 6.5 (.44) 4. (.55) holes Ø9. (.5) thro Inlet () Sequenced () 4. (.65) 5. (.98) 8. (4.65) max 66. (.6) 8. (.) 5.4 (.) 5.8 (.) 5. (.8) 5.8 (.) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

94 DS - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain 5 L/min (4 USgpm) 4 bar (6 psi) Operation As with the direct acting relief valves, when the pressure exceeds the spring force, the spool moves back, opening the inlet to outlet. Features Stable, quiet operation. Cartridge construction gives maximum flexibility in mounting. Offering good repeatability and reseat. Sectional view Performance data Ratings and specifications Drain () Sequenced () Inlet () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min (4 USgpm) Max setting 4 bar (6 psi) Cartridge material Working parts hardened and ground steel. xternal steel surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A88 (See Section 7) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight DS.8 kg (.6 lbs) DS45.88 kg (.94 lbs) Seal kit number SK77 (Nitrile) SK77V (Viton) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- to 94 F) Leakage 5 milliliters/min nominal 5 milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont * For applications above bar please consult our technical department or use the steel body option. Description Direct acting sequence valves are ideal for diverting oil to a second circuit at a predetermined pressure as in clamp and drill circuits, or as a relief where the back pressure varies. By taking the drain line directly to tank, back pressure effects are negated. Pressure drop curves Flow - L/min Pressure - psi DS 5 4 Pressure - bar Flow - US gpm -94 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

95 Model code DS** P W 4 S DS - Pressure sequence valve Spool, direct acting, normally closed, internal pilot, external drain 5 L/min (4 USgpm) 4 bar (6 psi) 4 5 Basic code DS - Cartridge Only DS45 - Cartridge and Body Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port sizes - bodied valves only Code Port size Housing number Aluminium Steel 4W / BSP. /4 BSP Drain B48 B457 6W /4 BSP. /4 BSP Drain B5466 B44 6T /8 SA. /4 SA Drain B79 8T / SA. /4 SA Drain B6584 T /4 SA. /4 SA Drain B788 B79 4 Pressure 4,8 l/min Note: Code based on pressure in bar bar std setting 5 bar bar std setting 8 bar 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code DS 9. (.54) max) Hex socket adjust 4.A/F 7. A/F 8.6 A/F Complete valve /8, /, /4 Ports Basic Code DS (.) 5.4 (.) 47. (5.78) max 5. (.97). (.4) Drain () holes Ø. (.4) thro 8. (.) 49. (.94) 5.4 (.) -4 UNS (.) (.5) 7. (.8) 88. (.49) 8. (4.5) Sequenced () Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

96 PS6 - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 6 L/min (6 USgpm) 5 bar (5 psi) Operation As in the pilot operated relief, when the setting of the valve is exceeded the pilot section opens. This pilot flow causes a pressure imbalance opening the main section and allowing flow to a secondary circuit (sequenced line). Features Hardened steel working parts give long, trouble-free life. Selectively matched honed assemblies give accurate performance. Sectional view Performance data Drain () Sequenced () Ratings and specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 6 L/min (6 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number CVA--6- (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight PS6.6 kg (.5 lbs) PS65.5 kg (. lbs) Seal kit number SK68 (Nitrile) SK68V (Viton ) Filtration BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to +94 F) Leakage 5 8 bar Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Inlet () Description Pilot operated models are best suited for higher flows which may vary widely to:. Provide ordered or sequenced series of operations as in a clamp and drill circuit.. Serve as a relief valve where oil viscosity or restrictions in the downstream line would cause excessive back pressure. The separate spring chamber drain makes the sequence valve insensitive to this back pressure. Pressure drop curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar -96 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

97 PS6 - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 6 L/min (6 USgpm) 5 bar (5 psi) Model code PS** P W 5 S 4 5 Basic Code PS6 - Cartridge Only PS65 - Cartridge and Body Adjustment Means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port sizes - bodied valves only Code Port size Housing number Aluminium Single Steel Single W /8 BSP /4 BSP Drain Port B75 B77 4W / BSP /4 BSP Drain Port B85 6T /4 SA /4 SA Drain Port B796 8T / SA /4 SA Drain Port B797 B8 4 Pressure L/min Note: Code based on pressure in bar bar Std setting 5 bar - - bar Std setting bar 5-5 bar Std setting 8 bar Std setting made at 4.8 liters min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Note: Tightening torque of F adjuster locknut - to 5 Nm Note: For applications above bar please consult our technical department or use the steel body option. Basic Code PS6 Hex socket adjust 4. A/F Complete valve /8, / Ports Basic Code PS65 6. (.4) max 7. A/F 7. A/F 8. (.5) 78. (.7). ( (.8). ( (.7) 4. (4.49) max Drain () M x.5-6g.8 (.5) 5.9 (.6) holes Ø9. (.5) thro 6.5 (.5) 5. (.8) 5.5 (.) Sequenced () Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

98 PS - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 5 L/min (4 USgpm) 5 bar (5 psi) Operation As in the pilot operated relief, when the setting of the valve is exceeded the pilot section opens. This pilot flow causes a pressure imbalance opening the main section and allowing flow to a secondary circuit (sequenced line). Features Hardened steel working parts give long, trouble-free life. Selectively matched honed assemblies give accurate performance. Sectional view Performance data Ratings and specifications Drain () Sequenced () Figures based on: Oil Temp = 4 C Viscosity = 4 cst Rated flow 5 L/min (4 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight PS.7 kg (.7 lbs) PS45.56 kg (. lbs) Seal kit number SK77 (Nitrile) SK77V (Viton ) Filtration BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- to +94 F) Leakage 5 8 bar Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Inlet () Description Pilot operated models are best suited for higher flows which may vary widely to:. Provide ordered or sequenced series of operations as in a clamp and drill circuit.. Serve as a relief valve where oil viscosity or restrictions in the downstream line would cause excessive back pressure. The separate spring chamber drain makes the sequence valve insensitive to this back pressure. Pressure drop curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar -98 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

99 PS - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 5 L/min (4 USgpm) 5 bar (5 psi) Model code PS*** P W 5 S 4 5 Basic code PS - Cartridge Only PS45 - Cartridge and Body PS55 - Cartridge, Body and Check Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port sizes - bodied valves only Code Port size Housing number Aluminium Single Steel Single PS45 4W / BSP. /4 BSP Drain Port B48 B457 6W /4 BSP. /4 BSP Drain Port B5466 B44 6T /8 SA. /4 SA Drain Port B79 8T / SA. /4 SA Drain Port B6584 T /4 SA. /4 SA Drain Port B788 B79 4 Pressure 4 L/min Note: Code based on pressure in bar. 7-7 bar. Std setting 5 bar - bar. Std setting bar bar. Std setting 8 bar 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Note: Tightening torque of F adjuster locknut - to 5 Nm Note: For applications above please consult our technical department or use the steel body option. Basic Code PS 9. (.54) max) Hex socket adjust 4.A/F 7. A/F 8.6 A/F Complete valve /8, /, /4 Ports Basic Code PS (.) 5.8 (.) 47. (5.78) max 5. (.97). (.4) Drain () holes Ø. (.4) thro 8. (.) 49. (.94) 5.4 (.) -4 UNS (.) (.5) 7. (.8) 88. (.49) 8. (4.5) Sequenced () Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

100 PSV-6 - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 95 L/min (5 USgpm) 5 bar (5 psi) Operation In the normal condition port is open to the tank port and port is blocked. When the pressure on port exceeds the setting of the valve port opens to port and port is blocked but must always be referenced to tank. Features Hardened steel working parts give long, trouble-free life. Selectively matched honed assemblies give accurate performance. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Maximum sequence pressure 45 bar (6 psi) Rated flow 95 L/min (5 USgpm) Cavity C-6 Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits 5658 Buna N 8896 Viton Viton is a registered trademark of.i. DuPont Description This is a pilot operated, spool type, internally piloted, externally drained screw in cartridge pressure sequence valve. In its normal position port is open to the tank line port. Pressure drop curve Port to, valve fully open, spring omitted Flow - L/min (,8 cst 49 C) Pressure Drop - psi Pressure Drop - bar Flow - USgpm (5 SUS F) - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

101 PSV-6 - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 95 L/min (5 USgpm) 5 bar (5 psi) Model code PSV 6 (V) * ( * ) *** **/ ** Function PSV - Pressure sequence valve Size 6-6 size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob S - Screw 5 Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) S Adjustm ent 6,5 (.5)hex C Adjustm ent 9, (.75)hex 6 Port size - Code Port size Housing number K Adjustm ent Aluminum light duty Aluminum fatigue rated Installation drawing (Steel) 69. (.7) Steel fatigue rated 6B /4 BSPP G / BSPP G /4 BSPP H SA 8767 H SA 8767 T SA 759 T SA See section J for housing. 7 Sequence pressure range Note: Code based on pressure in psi bar (5- psi) bar (-6 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) 57, (.5) 6, (.7) 57, (.5) 8, (.5) hex 54. (.) X Ø. (.46) 88.9 (.5) 8. (4.5) 5.4 (.)."- Thd. 5.4 (.).7 (.5).6 (4.) 76. (.) 5.4 (.) 7,5 (.8) Ø 6,95 (.6) Ø 8,55 (.4) Torque cartridge in housing A - 8- Nm (8-9 ft. lbs) S Nm (- ft. lbs) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

102 PS - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 5 L/min (6 USgpm) 5 bar (5 psi) Operation As in the pilot operated relief, when the setting of the valve is exceeded the pilot section opens. This pilot flow causes a pressure imbalance opening the main section and allowing flow to a secondary circuit (sequenced line). Features Hardened steel working parts give long, trouble-free life. Selectively matched honed assemblies give accurate performance. Sectional view Performance data Ratings and specifications Drain () Sequenced () Inlet () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min (6 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A6 (See Section M) Torque cartridge into cavity Nm (76 lbs ft) Weight PS.7 kg (.6 lbs) PS5.6 kg (.6 lbs) Seal kit number SK7 (Nitrile) SK7V (Viton ) Filtration BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to 94 F) Leakage 5 8 bar Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description Pilot operated models are best suited for higher flows which may vary widely to:. Provide ordered or sequenced series of operations as in a clamp and drill circuit.. Serve as a relief valve where oil viscosity or restrictions in the downstream line would cause excessive back pressure. The separate spring chamber drain makes the sequence valve insensitive to this back pressure. Pressure drop curves Pressure - psi Flow - L/min Flow - US gpm Pressure - bar - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

103 PS - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain 5 L/min (6 USgpm) 5 bar (5 psi) Model code PS*** P 6W 5 S 4 5 Basic code PS - Cartridge Only PS5 - Cartridge and Body Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port sizes - bodied valves only Code Port size Housing number 4Pressure 4 L/min Note: Code based on pressure in bar. Aluminium Steel 8W BSP. /4 BSP Drain Port B496 B497 6T SA. /4 SA Drain Port B687 B555 - bar Std setting bar bar Std setting bar Std setting made at 4 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils SV - Viton (For high temperature and most special fluid applications)) Dimensions mm (inch) Note: Tightening torque of F adjuster locknut - to 5 Nm Note: For applications above please consult our technical department or use the steel body option. Basic Code PS 4.5 (.59) max Hex socket adjust 4. A/F 7. A/F 8. A/F Complete valve Ports Basic Code PS5 5.8 (.). (.7) 5.4 (.). (.79) 8. (.) 56. (.) 56. (6.4) max 8. (.5) 8. (.5) Drain () -5/6- UN-A 76. (.) holes Ø8.5 (.) thro 5. (4.5). (.79) 58. (.8) Sequenced () Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

104 PSV-6-6 -Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain L/min (6 USgpm) 5 bar (5 psi) Operation The PSV-6 valve remains normally closed until a predetermined pressure is reached at port, which then allows from to port (port must be vented). Features Hardened steel working parts give long, trouble-free life. Selectively matched honed assemblies give accurate performance. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Maximum sequence pressure 45 bar (6 psi) Rated flow L/min (6 USgpm) Cavity C-6 S Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.5 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description The PSV-6 is a pilot operated, sliding spool, adjustable, cartridge type pressure sequence valve. This valve, which is internally piloted is used to control the sequence of operations of two or more actuators. Pressure drop curve -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

105 PSV Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain L/min (6 USgpm) 5 bar (5 psi) Model code PSV 6 (V) * ( * ) *** **/ ** Function PSV - Pressure sequence valve Size 6-6 size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob S - Screw 5 Valve housing material Blank - Aluminum S - Steel 6 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated Steel fatigue rated 4G / BSPP G /4 BSPP H SA H SA T SA -756 T SA See section J for housing. 7 Sequence Pressure Range Note: Code based on pressure in psi bar (5- psi) bar (-6 psi) 8 Setting pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Installation drawing (Steel) Torque cartridge in housing A - 8- Nm (8-9 ft. lbs) S Nm (- ft. lbs) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

106 PSC - Pressure sequence valve Poppet, direct acting, normally closed, internal pilot, external drain, reverse flow check L/min (8 USgpm) 5 bar (5 psi) Operation As with the direct acting relief valves, when the pressure exceeds the spring force, the spool moves back, opening the inlet to outlet. Features Match ground and honed hardened working parts give long, trouble-free life. Consistent stable operation providing low pressure rise due to increasing flow. Cartridge construction gives maximum flexibility in mounting. Steel valve bodies available on request. Sectional view Performance data Ratings and specifications Drain () Sequenced () Inlet () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (8 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal steel surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel. Mounting position Unrestricted Cavity number A66 (See Section M) Torque cartridge into cavity 45 Nm ( lbs ft) Weight PSC.5 kg (. lbs) PSC5.4kg (.9 lbs) Seal kit number SK95 (Nitrile) SK95V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to 94 F) Leakage. milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description Sequence valves provide ordered sequencing of two or more operations as with clamp and drill circuits. They can also be used as relief valves where the downstream pressure is high or changes during operation. By taking the drain line directly to tank, back pressure effects are negated. Pressure drop curves Flow - L/min Pressure - psi Flow - US gpm Pressure - bar Pressure - psi Flow - L/min Free flow Flow - US gpm Pressure - bar -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

107 PSC - Pressure sequence valve Poppet, direct acting, normally closed, internal pilot, external drain, reverse flow check L/min (8 USgpm) 5 bar (5 psi) Model code PSC** F W S 4 5 Function PSC - Cartridge Only PSC - Cartridge and body Adjustment means F - Screw adjustment N - Fixed - State pressure Setting required Port sizes Code Port size Housing number - body only Aluminium Steel W /8 BSP Valve & Cyl Port. /4 BSP Pilot Port B674 B8 6T /8 SA Valve & Cyl Port. /4 SA Pilot Port B56 8T / SA Valve & Cyl Port. /4 SA Pilot Port B7884 B8 4Pressure 4,8 L/min Note: Code based on pressure in bar. - bar. Std setting 7 bar - 6 bar. Std setting bar bar. Std setting bar 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code PSC Hex socket adjust 4. A/F 7. A/F Complete valve /8, / Ports Basic Code PSC5 holes Ø9. (.5) thro 47. (.85) max 8. max for fixed 'N' adjust 4.5 (.67) 5.4 A/F M x.5-6g Drain () Sequence () 6.5 (.4) 6. (.6).8 (.5) 9. (.5) 6. (.6) 4. (.65) 9. (.5) Note: Tightening torque of F adjuster locknut - to 5 Nm.. (.6) 6.5 (.5).5 (.45) 88. (.46) for fixed N adjust Note: For applications above bar please consult our technical department or use the steel body option. 7. (4.) max Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

108 PSC - Pressure sequence valve Poppet, pilot operated, normally closed, internal pilot, external drain, reverse flow check 5 L/min (4 USgpm) 5 bar (5 psi) Operation As in the pilot operated relief, when the setting of the valve is exceeded the pilot section opens. This pilot flow causes a pressure imbalance opening the main section and allowing flow to a secondary circuit (sequenced line). Features Match ground and honed hardened working parts give long, trouble-free life. Consistent stable operation providing low pressure rise due to increasing flow. Cartridge construction gives maximum flexibility in mounting. Steel valve bodies available on request. Sectional view Performance data Ratings and specifications Drain () Sequenced () Inlet () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min (4 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces electroless nickel plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight PSC.7 kg (.7 lbs) PSC45.78 kg (.7 lbs) Seal kit number SK77 (Nitrile) SK77V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to 94 F) Leakage 5 8 bar Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description Sequence valves provide ordered sequencing of two or more operations as with clamp and drill circuits. They can also be used as relief valves where the downstream pressure is high or changes during operation. By taking the drain line directly to tank, back pressure effects are negated. Pressure drop curves Flow - L/min Pressure - psi Flow - US gpm Pressure - bar Pressure - psi Flow - L/min 6 9 Free Flow Flow - US gpm Pressure - bar -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

109 PSC - Pressure sequence valve Poppet, pilot operated, normally closed, internal pilot, external drain, reverse flow check 5 L/min (4 USgpm) 5 bar (5 psi) Model code PSC*** P W 5 S 4 5 Function PSC - Cartridge Only PSC45 - Cartridge and body Adjustment means P - Leakproof screw adjustment R - Handknob adjustment G - Tamperproof Cap (See page 4- for dimensions) Dimensions mm (inch) Basic Code PSC45 Port sizes 4 Pressure 4 L/min Code Port size Housing number - body only Aluminium Steel W /8 BSP /4 BSP Drain Ports 4W / BSP /4 BSP Drain Ports B48 B457 6W /4 BSP /4 BSP Drain Ports B5466 B44 6T /8 SA /4 SA Drain Ports B79 8T / SA /4 SA Drain Ports B6584 T /4 SA /4 SA Drain Ports B788 B79 Hex socket adjust 4. A/F Complete valve /8, /, /4 Ports Basic Code PSC (.) Note: Code based on pressure in bar. 7-7 bar. Std setting 5 bar - bar Std setting bar bar Std setting 8 bar Std setting made at 4 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 47. (5.78) max 5. (.97). (.4) 9. (.54) max 7. A/F 8.6 A/F 5.8 (.) holes Ø. (.4) thro 8. (.) 49. (.94) 5.4 (.) (.) (.5) Drain () -4 UNS 88. (.49) 8. (4.5) 7. (.8) Sequenced () Note: For applications above bar please consult our technical department or use the steel body option. Inlet () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

110 UPS - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain, unloading 5 L/min (4 USgpm) 5 bar (5 psi) Operation Inlet pressure acts on the pilot section of the valve. When the valve setting is reached, the pilot section opens and pilot flow causes the spool to move back uncovering the radial vent port. The main section then opens fully with pilot flow passing through the vent. The valve remains open until flow to the sequenced port ceases and inlet pressure drops to zero. Features Hardened steel working parts give long, trouble-free life. Selectively matched honed assemblies give accurate performance. Sectional view Performance data Drain () Sequenced () Ratings and specifications Figures based on: Oil Temp 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min (4 USgpm) Max setting 5 bar (5 psi) Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight PSC.7 kg (.7 lbs) PSC45.56 kg (. lbs) Seal kit number SK77 (Nitrile) SK77V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to 94 F) Leakage milliliters/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Inletl () Description An off-loading (kick down) sequence valve opens fully to pass flow to a secondary circuit when the valve pressure setting is reached. This allows flow to the secondary circuit with a minimal pressure drop. Pressure drop curves Flow - L/min Unloaded 74. Pressure - psi Pressure - bar Flow - US gpm - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

111 UPS - Pressure sequence valve Spool, pilot operated, normally closed, internal pilot, external drain, unloading 5 L/min (4 USgpm) 5 bar (5 psi) Model code UPS*** P W 5 S 4 5 Function UPS - Cartridge Only UPS45 - Cartridge in body UPS55 - Cartridges in dual body Adjustment means P - Leakproof screw adjustment R - Handknob adjustment G - Tamperproof Cap (See page 4- for dimensions) Port sizes 4 Pressure 4 l/min Code Port size Housing number - body only Aluminium Steel 4W / BSP /4 BSP Drain Ports B48 B457 6W /4 BSP /4 BSP Drain Ports B5466 B44 6T /8 SA /4 SA Drain Ports B79 8T / SA /4 SA Drain Ports B6584 T /4 SA /4 SA Drain Ports B788 B79 Note: Code based on pressure in bar. - - bar. Std. setting bar bar. Std setting bar Std setting made at 4 L/min 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - (For high temperature and most special fluid applications) Dimensions mm (inch) Basic Code UPS Hex socket adjust 4.A/F Complete valve /8, /, /4 Ports Basic Code UPS45 9. (.54) max) 7. A/F 8.6 A/F 5.8 (.) 5.4 (.) 47. (5.78) max 5. (.97). (.4) Drain () holes Ø. (.4) thro 8. (.) 49. (.94) 5.4 (.) -4 UNS (.) (.5) 7. (.8) 88. (.49) 8. (4.5) Inlet () Sequenced () Note: For applications above bar please consult our technical department or use the steel body option. aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

112 PUV- - Pilot unloading valve Poppet, internal or external pilot operated, normally closed, unloading 4 L/min ( USgpm) bar ( psi) Operation This valve blocks flow from port to port, until either the predetermined spring setting has been reached, or an external pilot has been applied to port. At this time flow is then allowed from port to port. The valve will reseat at a percentage of the unloading setting as called out in the model code. This valve can be used alone for low flow applications or used as the pilot stage of a two-stage unloader valve (see application example). The main stage of the unloader is typically a DPS logic element. Features Hardened poppet and seat. Very low leakage when piloted closed without exerting excessive force on the seat. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow 4 L/min ( USgpm) Unloading pressure adjustment range - bar (- psi) Cavity C- Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,5 kg (. lbs) Seal kits 5658 Buna N 8896 Viton Viton is a registered trademark of.i. DuPont Description The PUV is a two-way, normally closed, externally or internally pilot operated screw-in cartridge type pilot unloading valve. Pressure drop curves Piloted full open Pressure Drop - psi B C D A 4 Pressure Drop - bar A - 75% B - 8% C - 85% D - 9% Flow - USgpm (5 SUS F) - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

113 PUV- - Pilot unloading valve Poppet, internal or external pilot operated, normally closed, unloading 4 L/min ( USgpm) bar ( psi) Model code PUV (V) * ** ** **/** Function PUV - Pilot unloading valve Size - size Seal Blank - Buna-N V - Viton 4 Adjustment C - Cap S - Screw 5 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated 6T SA B /8 BSPP 758 6H SA H SA G /4 BSPP G /8 BSPP See section J for housing. 6 Loading (closing) pressure, as percentage of unloading pressure 75-75% 8-8% 85-85% 9-9% 7 Pressure range Note: Code based on pressure in psi bar. (-5 psi) - - bar. (5- psi) 8 Unloading pressure setting Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi) bar (95 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in aluminum housing to Nm (5-4 ft. lbs). Installation drawing "C" Adjustment 46, (.8) 9, (.5) 5,4 (.) hex "S" Adjustment Maximum Torque to, Nm ( lbf ft).875"-4 Thd. 46, (.8) Ø 5,8 (.6) Ø 7,4 (.686) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

114 ADV-6 - Accumulator discharge valve Poppet, normally open, external pilot L/min (8 USgpm) bar ( psi) Operation The valve remains open between port and until sufficient pilot pressure is applied to port. This holds pressure in port until the pilot pressure is released allowing flow to take place from port to. Features Hardened poppet and seat. Very low leakage when piloted closed without exerting excessive force on the seat. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow L/min (8 USgpm) Minimum pilot port Cavity Standard housing materials 4 bar (6 psi) C-6 S Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Pilot ratio : Weight cartridge only,8 kg (.6 lbs) Seal kits Viton is a registered trademark of.i. DuPont 5658 Buna N 8896 Viton Description ADV-6 is a poppet type pilot to close check valve with a to pilot ratio ideal for accumulator discharge applications. Pressure drop curves Port pilot pressure = Flow - L/min (,8 cst 49 C) Pressure Drop - psi Pressure Drop - bar Flow - USgpm (5 SUS F) -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

115 ADV-6 - Accumulator discharge valve Poppet, normally open, external pilot L/min (8 USgpm) bar ( psi) Model code ADV 6 (V) *** Function ADV - Accumulator discharge valve Size 6-6 size Seal material Blank - Buna-N V - Viton 4 Port size - Code Port size Housing number Aluminum Light duty Aluminum Fatigue rated 6B /4 BSPP 7547 T SA G / BSPP G /4 BSPP H SA H SA See section J for housing. 5 Pilot area ratio Port : Port - : (Minimum pilot pressure at port - 4 bar (6 psi) 6 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in housing 8- Nm (8-9 ft. lbs) Installation drawing, (.47).7 (.5) X8.74 (.44). (.4) 8, (.5)hex 54 (.) 4. (4.5) 9.68 (.68) 54 (.). "- Thd. 55, (.7).8 (.5) 88.9 (.5) 4. (4.5).8 (.5) Ø 5,7 (.999) Ø 8,55 (.4) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

116 PRV- - Pressure reducing/relieving valve Spool, direct acting 5 L/min (4 USgpm) 65 bar (4 psi) Operation Normally open, the valve throttles or closes to maintain constant pressure in the regulated line. As in the other direct acting valves, the spring force holds the valve open. Features Hardened steel working parts are individually match ground to assure long life, reliability and high accuracy. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 65 bar (4 psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow 5 L/min (4 USgpm) Cavity C- Standard housing materials Aluminum Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.54 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a direct acting, screw in cartridge pressure reducing valve designed to provide an adjustable regulated pressure which is lower than supply pressure.. Direct acting models are suited to lower flow applications and regulated pressures to 65 bar (5 psi). This valve also acts as a relief valve, relieving from regulated line to tank if shock or surge pressures occur in the regulated line. Pressure override curves A - 4 spring B - spring C - 6 spring Pressure, port - psi 5 5 Flow - L/min (,8 cst 49C) B 5 C Port to Port to Flow - USgpm (5 SUS F) A 5 5 Pressure, port - bar -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

117 PRV- - Pressure reducing/relieving valve Spool, direct acting 5 L/min (4 USgpm) 65 bar (4 psi) Model code PRV (V) * ** **/ ** Function PRV - Pressure reducing/ relieving valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5 Port size - Code Port size Housing number Aluminum light duty Aluminum fatigue rated B /8 BSPP 758 6T SA G /4 BSPP G /8 BSPP H SA H SA See section J for housing details. 6 Pressure range Note: Code based on pressure in psi. -,5-4 bar (5- psi) bar (-6 psi) bar (- psi) bar (4-4 psi) 7 Factory set reduced pressure Within ranges in 6 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 8 Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless steel external components Dimensions mm (inch) K Adjustment Ø 8, (.5) S Adjustment Torque cartridge in aluminum housing Nm (5-4 ft. lbs) Installation drawing C Adjustment 9, (.75) hex F Adjustment I Adjustment 5, (.8) 5,4 (.) hex 9, (.75) hex.875"-4 Thd. 8, (.5) 4,6 (.97) 8,8 (.74) 5 (.97) 8.8 (.) 57. (.5) 9.5 (.8) 57.5 (.5) 75.4 (.97) X7,4 (.8) 4,8 (.7) 5,4 (.) 75,4 (.97) 46, (.8) Ø 5,8 (.6) Ø 7,4 (.685) aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

118 PRV- - Pressure reducing/relieving valve Spool, pilot operated 8 L/min ( USgpm) 4 bar (5 psi) Operation This valve is normally open allowing inlet oil to pass to the regulated line until the outlet (regulated) pressure exceeds the setting of the pilot section. When this setting is achieved a pilot flow occurs, causing a pressure imbalance across the main spool, which then moves throttling the inlet flow and preventing any further pressure rise in the regulated line. If any external force causes the regulated pressure to rise more than 5-% above the setting, the main spool moves back further, opening the regulated port to the tank line, thus working as a relief valve. Features Cartridge construction with hardened, ground and honed working parts giving smooth, stable operation over all pressure ranges. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 4 bar (5 psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow 8 L/min ( USgpm) Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.54 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a pilot operated screw in cartridge pressure reducing / relieving valve. The valve maintains a constant outlet pressure in hydraulic sub-systems regardless of fluctuations in the primary system. In addition to this it will act as a relief valve if the pressure in the sub-system rises higher than the setting of the valve directing excess fluid to tank. Pressure override curves A - 5 spring B - spring C - spring Pressure, port - psi 5 Flow - L/min (,8 cst 49 C) A 5 5 B C Port to Port to Flow - USgpm (5 SUS F) 5 Pressure, port - bar -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

119 PRV- - Pressure reducing/relieving valve Spool, pilot operated 8 L/min ( USgpm) 4 bar (5 psi) Model code PRV (V) * (S) ** **/ ** Function PRV - Pressure reducing/ relieving valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory set I - Internal K - Knob S - Screw 5Valve housing material Blank - Aluminum S - Steel 6 Port size - Code Port size Housing number 7 Cracking pressure range Note: Code based on pressure in psi. -,5- bar (5- psi) bar (- psi) bar (5-5 psi) Aluminum light duty Aluminum fatigue rated 8 Factory set reduced pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Steel fatigue rated B /8 BSPP 758 G /4 BSPP G /8 BSPP H SA H SA T SA T SA See section J for housing. 9 Special features - None (Only required if valve has special features, omitted if. ) SS - 6 Stainless Steel external components Dimensions mm (inch) "K" Adjustment Ø 8, (.5) "S" Adjustment "C" Adjustment; 9, (.75) hex Installation drawing (Steel) "F" Adjustment "I" Adjustment 5, (.8) 5,4 (.) hex 9, (.75) hex 8, (.5) 5. (.8) X Ø7.4 (.8) 8.8 (.) 6.5 (.5) 76. (.) 9. (.75).875" -4 Thd..4 (.88) 9.7 (.8) 57. (.45) 76. (.).4 (.88) 46, (.8) Ø 5,8 (.6) Ø 7,4 (.685) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

120 PRV- - Pressure reduced/relieving valve Spool, pilot operated 45 L/min ( USgpm) 5 bar (5 psi) Operation This valve is normally open allowing inlet oil to pass to the regulated line until the outlet (regulated) pressure exceeds the setting of the pilot section. When this setting is achieved a pilot flow occurs, causing a pressure imbalance across the main spool, which then moves throttling the inlet flow and preventing any further pressure rise in the regulated line. If any external force causes the regulated pressure to rise more than 5-% above the setting, the main spool moves back further, opening the regulated port to the tank line, thus working as a relief valve. Features Cartridge construction with hardened, ground and honed working parts giving smooth, stable operation over all pressure ranges. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 45 L/min ( USgpm) Cracking pressure 5 8,5 bar (5 5 psi) 7, bar (5 psi) bar (55 5 psi) Cavity C-- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.54 lbs) Seal kits Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a pilot operated screw in cartridge pressure reducing / relieving valve. The valve maintains a constant outlet pressure in hydraulic sub-systems regardless of fluctuations in the primary system. In addition to this it will act as a relief valve if the pressure in the sub-system rises higher than the setting of the valve directing excess fluid to tank. Reduced pressure characteristics (max. setting) A - 5 spring B - spring C - 5 spring Regulated Pressure - psi Flow - L/min (,8 cst 49 C) A 8 B 4 C Port to Port to Flow - USgpm (5 SUS F) Regulated Pressure - bar - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

121 PRV- - Pressure reduced/relieving valve Spool, pilot operated 45 L/min ( USgpm) 5 bar (5 psi) Model code PRV (V) * (S) ** ** / ** Function PRV - Pressure reducing/ relieving valve Size - size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap F - Factory Set I - Internal K - Knob S - Screw 5Valve housing material Blank - Aluminum S - Steel Dimensions mm (inch) "C" Adjustment 9, (.75) hex "S" Adjustment "F" Adjustment "I" Adjustment 5, (.6) 6 Port size - Code Port size Housing number 7Cracking pressure range Note: Code based on pressure in psi. 5-8,5- bar (5-5 psi) - 7,- bar (5- psi) bar (55-5 psi) 8, (.) "K" Adjustment Ø 8, (.5) 5,4 (.) hex Aluminum light duty 8 Factory set reduced pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Installation drawing (Steel).4 (.88) 5. (.8) X Ø7.4 (.8) 9.7 (.8) Aluminum fatigue rated 8.8 (.) 57. (.45) 76. (.) 9 Special features - None (Only required if valve has special features, omitted if. ) 6.5 (.5) 76. (.) Steel fatigue rated B /8 BSPP 758 G /4 BSPP G /8 BSPP H SA H SA T SA T SA See section J for housing. 9. (.75).4 (.88) 46, (.8) Ø 5,8 (.6) Ø 7,4 (.686) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

122 PRV- - Pressure reducing/relieving valve Spool, pilot operated 4 L/min ( USgpm) 5 bar (5 psi) Operation This valve is normally open allowing inlet oil to pass to the regulated line until the outlet (regulated) pressure exceeds the setting of the pilot section. When this setting is achieved a pilot flow occurs, causing a pressure imbalance across the main spool, which then moves throttling the inlet flow and preventing any further pressure rise in the regulated line. If any external force causes the regulated pressure to rise more than 5-% above the setting, the main spool moves back further, opening the regulated port to the tank line, thus working as a relief valve. Features Cartridge construction with hardened, ground and honed working parts giving smooth, stable operation over all pressure ranges. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure 5 bar (5 psi) Port to and 57 L/min (5 USgpm) bar ( psi) Port 4 L/min ( USgpm) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 4 L/min ( USgpm) Internal leakage, L/min (.5 USgpm) Cavity C- Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg (.89 lbs) Seal kits 6587 Buna N Viton Viton is a registered trademark of.i. DuPont Description This is a pilot operated screw in cartridge pressure reducing / relieving valve. The valve maintains a constant outlet pressure in hydraulic sub-systems regardless of fluctuations in the primary system. In addition to this it will act as a relief valve if the pressure in the sub-system rises higher than the setting of the valve directing excess fluid to tank. Pressure drop curves Pressure - psi Flow - L/min (,8 cst 49ºC) Relieving Reducing Pressure - bar Flow - USgpm (5 SUS ºF) - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

123 PRV- - Pressure reducing/relieving valve Spool, pilot operated 4 L/min ( USgpm) 5 bar (5 psi) Model code PRV (V) * (S) *** **/ ** Function PRV - Pressure reducing/ relieving valve Size - size Seal material Blank - Buna-N V - Viton 6 Port size - Code Port size Housing number Aluminum fatigue rated Steel fatigue rated T SA T SA G / BSPP G /4 BSPP See section J for housing. 4 Adjustment S - Screw C - Cap K - Knob 5 Valve housing material Omit for cartridge only S - Steel A - Aluminum 7 Cracking pressure range Note: Code based on pressure in psi bar (5-5 psi) - 7- bar (5- psi) bar (5-5 psi) 8 Factory set reduced pressure Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) 9 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) Torque cartridge in housing A Nm (6-7 ft. lbs) S - -5 Nm (75-85 ft. lbs) Installation drawing (Steel) "C"Adjustm ent "K" Adjustm ent "S"Adjustm ent 4,8 (.8)hex 7.9 (.87) 9, (.75)hex,7 (.5)hex 76, (.) 7, (.88) Nominal 8.7 (.) 5.4 (.) X Ø. (.46) 9.7 (.8) 88.9 (.5) 88.9 (.5).6 (4.) 6.5 (.5) 5.6 (.) 5.4 (.).6"- Thd. 67, (.65) Ø,7 (.87) Ø,75 (.95) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

124 PA - Pressure reducing valve Spool, pilot operated L/min (6 USgpm) bar (5 psi) to 5 bar (5 psi) Operation This valve is normally open, allowing oil from the inlet to pass through to the regulated port of the cartridge. When the regulated pressure reaches the valve setting, the pilot section opens causing a pressure imbalance across the main spool which moves, throttling the inlet flow, preventing any further pressure rise in the regulated line. Features Internal parts hardened, match ground and honed to give long, trouble-free life. Pilot style design allows for high flows and accurate performance. Sectional view Performance data Ratings and specifications DRAI N ( ) Drain () Inlet () Reg () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (6 USgpm) Pressure range to 5 bar (5 to 5 psi) Max differential bar ( psi) between and Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A88 (See Section M) Torque cartridge into cavity 6 Nm (44 lbs ft) Weight PA.7 kg (.7 lbs) PA5.6 kg (. lbs) Seal kit number SK77 (Nitrile) SK77V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to 94 F) Pilot flow 5 standard setting Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a pilot operated pressure reducing valve designed to maintain a constant downstream pressure lower than the inlet pressure. Ideal for use in two pressure systems or to protect low pressure actuators such as brake cylinders. Pressure drop curve Pressure - psi Flow - L/min Flow - US gpm Pressure - bar -4 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

125 PA - Pressure reducing valve Spool, pilot operated L/min (6 USgpm) bar (5 psi) to 5 bar (5 psi) Model code PA*** P 4W 5 S 4 5 Basic code PA - Cartridge Only PA5 - Cartridge and Body Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port sizes - bodied valves only Code Port size Housing number Aluminium single Steel single 4W / BSP. /4 BSP Drain Port B48 B457 6W /4 BSP. /4 BSP Drain Port B5466 B44 8T / SA. /4 SA Drain Port B6584 T /4 SA. /4 SA Drain Port B788 B79 4Pressure zero flow Note: Code based on pressure in bar. 7-7 bar Std setting bar - 5 bar Std setting bar 5-5 bar Std setting 8 bar Std setting made at zero flow (dead head) 5 Seals Dimensions mm (inch) Basic Code PA Hex socket adjust 4. A/F Complete valve /, /4 Ports Basic Code PA5 5.4 (.) S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 47. (5.78) max 5. (.97). (.4) 9. (.54) max 7. A/F 8.6 A/F 5.8 (.) holes Ø. (.4) thro 8. (.) 49. (.94) 5.4 (.) (.) (.5) Drain () 88. (.49) 8. (4.5) -4 UNS A 7. (.8) Note: Tightening torque of F adjuster locknut - to 5 Nm Note: For applications above please consult our technical department or use the steel body option. Inlet () Reg () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

126 PRV-6 - Pressure reducing/relieving valve Spool, pilot operated 5 L/min (4 USgpm) 5 bar (5 psi) Operation This valve is normally open allowing inlet oil to pass to the regulated line until the outlet (regulated) pressure exceeds the setting of the pilot section. When this setting is achieved a pilot flow occurs, causing a pressure imbalance across the main spool, which then moves throttling the inlet flow and preventing any further pressure rise in the regulated line. If any external force causes the regulated pressure to rise more than 5-% above the setting, the main spool moves back further, opening the regulated port to the tank line, thus working as a relief valve. Features Cartridge construction with hardened, ground and honed working parts giving smooth, stable operation over all pressure ranges. Sectional view Performance data Ratings and specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 5 L/min (4 USgpm) Cavity C-6 Standard housing materials Aluminum or steel Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 566, SA, SA, etc. Filtration Cleanliness Code 8/6/ Weight cartridge only,4 kg. (.89 lbs.) Seal kits 5658 Buna N 8896 Viton Viton is a registered trademark of.i. DuPont Description This is a pilot operated screw in cartridge pressure reducing / relieving valve. The valve maintains a constant outlet pressure in hydraulic sub-systems regardless of fluctuations in the primary system. In addition to this it will act as a relief valve if the pressure in the sub-system rises higher than the setting of the valve directing excess fluid to tank. Pressure drop curve Pressure, port - psi Flow - L/min (,8 cst 49ºC) Pressure, port - bar Port to Port to Flow - USgpm (5 SUS ºF) -6 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

127 PRV-6 - Pressure reducing/relieving valve Spool, pilot operated 5 L/min (4 USgpm) 5 bar (5 psi) Model code PRV 6 (V) * (S) *** **/ ** Function PRV - Pressure reducing/ relieving valve Size 6-6 size Seal material Blank - Buna-N V - Viton 4 Adjustment C - Cap K - Knob S - Screw 5 Valve housing material S - Steel A - Aluminum 6 Port size - Code Port size Housing number 7 Cracking pressure range Note: Code based on pressure in psi bar (5- psi) bar (-6 psi) Aluminum light duty 8 Factory set reduced pressure Aluminum fatigue rated Within ranges in 7 Blank - Normal factory setting at approximate mid-range. User requested settings in,45 bar (5 psi) steps, Coded as in the following examples: - 7 bar ( psi).5-7,4 bar (5 psi) Steel fatigue rated 6B /4 BSPP G / BSPP G /4 BSPP H SA 8767 H SA 8767 T SA 759 T SA See section J for housing. 9 Special features - None (Only required if valve has special features, omitted if. ) Dimensions mm (inch) "S " Adjustm ent 4,7 (.8)hex "C"Adjustm ent Torque cartridge in housing A - 8- Nm (8-9 ft. lbs) S Nm (- ft. bs) "K " Adjustm ent Installation drawing (Steel) 5.4 (.) 69. (.7) 5.4 (.) 57, (.5) 6, (.7) 8. (.5) hex 57, (.5) 54. (.) 88.9 (.5) 8. (4.5) 5.4 (.) 7,5 (.8). - Thd..7 (4.5) 76. (.).6 (4.). (.4) Ø 6,95 (.6) Ø 8,55 (.4) Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

128 PA - Pressure reducing valve Spool, pilot operated L/min (5 USgpm) 5 bar (5 psi) Operation This valve is normally open, allowing oil from the inlet to pass through to the regulated port of the cartridge. When the regulated pressure reaches the valve setting, the pilot section opens causing a pressure imbalance across the main spool which moves, throttling the inlet flow, preventing any further pressure rise in the regulated line. Features Internal parts hardened, match ground and honed to give long, trouble-free life. Pilot style design allows for high flows and accurate performance. Sectional view Performance data Ratings and specifications Drain () Inlet () Reg () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (5 USgpm) Max setting Inlet 5 bar (5 psi) Reg 5 bar (45 5 psi) Max Differential bar ( psi) between and Cartridge material Working parts hardened and ground steel. xternal surfaces zinc plated. Body material Standard aluminium (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A6 (See Section 7) Torque cartridge into cavity Nm (76 lbs ft) Weight PA.7 kg (.59 lbs) PA5.6 kg (.4 lbs) Seal kit number SK7 (Nitrile) SK7V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temp - C to +9 C (- C to 94 F) Pilot Flow 55 standard setting Nominal viscosity range 5 to 5 cst Viton is a registered trademark of.i. DuPont Description This is a pilot operated pressure reducing valve designed to maintain a constant downstream pressure lower than the inlet pressure. Ideal for use in two pressure systems or to protect low pressure actuators such as brake cylinders. Pressure drop curve Pressure - psi Flow - L/min Flow - US gpm Pressure - bar -8 aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

129 PA - Pressure reducing valve Spool, pilot operated L/min (5 USgpm) 5 bar (5 psi) Model code PA*** P 8W 5 S 4 5 Basic code PA - Cartridge Only PA5 - Cartridge and Body Adjustment means P - Leakproof Screw Adjustment R - Handknob Adjustment G - Tamperproof Cap (See page -7 for dimensions) Port sizes - bodied valves only 4Pressure zero flow Code Port size Housing number Aluminum single Steel single 8W BSP /4 BSP Drain Port B496 B497 T /4 SA /4 BSP Drain Port B786 6T SA /4 SA Drain Port B687 B555 Note: Code based on pressure in bar. - bar Std setting bar 5-5 bar Std setting 8 bar Std setting made at zero flow (dead head) Dimensions mm (inch) Basic Code PA 4. (.6) max Hex socket adjust 4. A/F 7. A/F 8. A/F Complete valve /4, Ports Basic Code PA5 5.8 (.). (.7) 5.4 (.). (.79) 8. (.) 56. (.) 5 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 56. (6.4) max 8. (.5) -5/6- UNF-A 76. (.) holes Ø8.5 (.) thro 5. (4.5). (.79) 58. (.8) 8. (.5) Drain () Note: Tightening torque of F adjuster locknut - to 5 Nm Note: For applications above please consult our technical department or use the steel body option. Inlet () Reg () aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January

130 PDC5 - Pressure reducing valve Direct acting ported Pressure reducing valve with check 6L/min (.5 USgpm) bar (psi) Reg 5bar (5psi) Inlet Sectional view Operation At low pressure the pilot piston keeps the ball away from the seat allowing flow from port to. As the pressure in the line increases the pilot piston is forced back against the spring until the ball sits on the seat. The inlet pressure can then rise up to the maximum system pressure. If the inlet pressure is removed then the ball will remain on the seat limiting the leakage to less than / cc/ min. It should be noted that if the inlet pressure remains higher than the set pressure then leakage may take place from port to port. If the regulated line has no leakage then the regulated pressure may rise in time to the inlet pressure. Features Hardened seat and ball provide good sealing over the life of the valve. xternal parts surface hardened. Performance data Ratings and specifications Figures based on: Oil Temp=4 C Viscosity = cst (5 SUS) Max setting bar (psi) Max inlet pressure 5 bar (5 psi) Rated Flow 6 lts/min (.5 US gpm) Cavity C-- Standard housing material Aluminium up to bar add suffix 77 for steel option Temperature range -4 to C (-4 to 48 F) Fluids All general purpose hydraulic fluids such as MIL-H-566, SA, SA etc Filtration Cleanliness code 8/6/ Weight, 6Kg (.6 lbs) Seal kit Nitrile Viton Description The PDC5 is a direct acting poppet type pressure reducing valve with a free flow check. The valve is used where leakage past the reducing valve is very important to maintain reduced locked in pressure in an accumulator or other pressurised systems. Pressure drop Regulated Pressure Free Flow Pressure Drop - aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8

131 PDC5 - Pressure reducing valve Direct acting ported Pressure reducing valve with check 6L/min (.5 USgpm) bar (psi) Reg 5bar (5psi) Inlet Model code PDC5- F 4W S 4 5 Function Port sizes - bodied valves only 4 Pressure range PDC5- - Pressure reducing valve with free flow check Adjustment F - Screw adjust Code Port size Aluminium Steel 4W / BSPP T SA bar Standard setting bar 5 Seals S - Nitrile - for standard temperatures and most fluid applications Dimensions mm (inch) Torque cartridge into housing A Nm (6-7 ft lbs) S - -5 Nm (75-85 ft lbs) Installation drawing Warning Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). aton Hydraulic Screw-in Cartridge Valves (SiCV) -VLSC-MC-6 January 8 -

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