Cover headline. Cover subheadline. Check Valves

Transcription

1 Check Valves Cover headline Direct and pilot operated check valve functions for applications up to 5 bar (5 psi) and 7 L/min (6 USgpm) Cover subheadline EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

2 Check Valves Valve locator Functional Symbol Flow Typical Model Cavity Rating Pressure Page Check valve, direct L/min (USgpm) bar (psi) FPR/4 Inline () 5 (5) - FPR/8 Inline (8) 5 (5) - FPR/ Inline 45 () (457) - FPR/4 Inline 85 () (4) - FPR Inline 4 (7) 5 (6) - FPR/4 Inline (58) 5 (6) - FPR/ Inline (8) () - CA A879 4 () 5 (5) - CV-4 C () 5 (5) - CV-8 C-8- (8) 5 (5) - CV- C-- 76 () () -4 CV- C-- 76 () 5 (5) -4 CV- C-- (u) 4 () 5 (5) -6 CV-6 C-6-5 (4) () -7 CV-6 C-6-5 (4) 5 (5) -7 CV- C-- 7 (6) () -8 CA C-- (8) 5 (5) -9 Flow Typical Model Cavity Rating Pressure Page Check valve, direct L/min (USgpm) bar (psi) CV6- C-- 76 () 5 (5) -5 Flow Typical Model Cavity Rating Pressure Page Check valve, with bypass orifice L/min (USgpm) bar (psi) CV6- C-- 76 () 5 (5) - CV6-6 C-6-5 (4) () - Flow Typical Model Cavity Rating Pressure Page Check valve, pilot-to-open L/min (USgpm) bar (psi) SPC-8 C-8-9 (5) 4 (5) - SPC- C-- (6) 4 (5) - -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

3 Check Valves (cont.) Valve locator Functional Symbol Flow Typical Model Cavity Rating Pressure Page Check valve, pilot-to-open L/min (USgpm) bar (psi) 4CK A66 (8) 5 (5) -4 4CK9 A6 9 (4) 5 (5) -5 4CKD9 A6 9 (4) 4 (6) -6 4CK A877 () 5 (5) -7 4CK A695 (8) 5 (5) -8 4SK A9-TA (8) 5 (5) - 4SK9 A9-TA 9 (4) 5 (5) - 4SK4 A94-T7A 4 (7) 5 (5) - 4KD5 Inline 5 (6) 7 () -5 Flow Typical Model Cavity Rating Pressure Page Dual pilot checks L/min (USgpm) bar (psi) DPC-8 C (5) 4 (5) - 4 Flow Typical Model Cavity Rating Pressure Page Dual pilot checks with thermal relief L/min (USgpm) bar (psi) 4CKKT5 A744 5 (6.6) (45) -4 4 Flow Typical Model Cavity Rating Pressure Page Check valve, pilot-to-close L/min (USgpm) bar (psi) 5CK A66 (8) 5 (5) -6 5CK A877 () 5 (5) -7 5CK A695 5 (65) 5 (5) -8 Flow Typical Model Cavity Rating Pressure Page Shuttle L/min (USgpm) bar (psi) SH A697 (5) 5 (5) -9 DSV- C-- (6) () -4 DSV-4 C-4- (.75) 4 (5) -4 DSV-8 C-8- (6) 4 (5) -4 DSV-XX-B Inline 7 (45) 5 (5) -4 EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

4 Check Valves Section Overview This section gives basic specifications for the full line of Eaton screw-in cartridge check valves. Its purpose is to provide a quick, convenient reference tool when choosing Vickers cartridge valves or designing a system using these components. Eaton's Integrated Hydraulics range of direct and pilot operated check valves provides the hydraulic circuit designer with a wide selection of cartridge and in-line products. Two pressure ratings are shown for all products featured in this catalog. The typical application pressure rating is the maximum recommended operating pressure for the valve in a given system. The fatigue pressure rating is the pressure for the valve to be free for infinite life from metal fatigue. All poppet type check valve cartridges have hardened and ground poppets and sharpedged ground steel seats. This provides an excellent product that is dirt-tolerant, has reliable seating, and is suitable for fast cycling with long life. Direct Operated Check Valves Cartridges fit into industry standard cavities and may be supplied for installation in manifolds, or be provided in standard housings having SAE or BSPP ports suitable for in-line mounting. A wide selection of cracking pressures is available from, to,7 bar ( to psi). Thus the opportunity exists to use the valves not only as conventional check but also as low pressure relief valves. Pilot Operated Check Valves These valves are used for: Position load locking As an alternative to counterbalance valves where neither the overrunning loads or release speed are factors in the application. The high pressure POC*- and POC*- series of pilot-to-open check valves complement the CE overcenter valves. The POC s provide a low cost alternative to load control when the dynamics of neither overrunning loads nor load release speed are factors to be considered in the design of the hydraulic circuit for the load to be controlled. The pilot-to-open valves positively lock a load from port to port until pilot pressure applied to port is sufficient to unseat the valve. This then permits flow from port to port. The load can also be released through means of an optional screw type override The POC*- covers flow up to 6 L/min (5 USgpm). The POC*- covers flow up to 4 L/min ( USgpm). With infinite life qualification to a fatigue pressure rating of bar (45 psi), these POC valves are suitable for use in a broad range of load control applications with typical system operating pressures up to 5 bar (5 psi). Tailoring of the circuit to gain energy savings while minimizing shock is obtained through the use of several standard cracking pressure ranges from, bar ( psi) to 7 bar ( psi). When anti-cavitation protection is required, the, bar (5 psi) spring should be used. For those applications where pilot pressure may not always be available, the valve can be ordered with an optional adjustable override. Features And Benefits Products in this catalog have been fatigue tested for one million cycles at % or million cycles at 5% of rated pressure. Simple load holding device. Low cost alternative to more complex solutions when overrunning loads are not present and / or control of load release speed is not required. Provides high operational efficiency and low spring settings. Valves are offered with a wide variety of standard housings with SAE and BSPP port options in the following configurations: In-line single In-line dual SAE, 4-bolt, code 6 Close coupled, nipple mounted asket mounted single asket mounted dual The Eaton range of direct and pilot operated check valves provides the hydraulic circuit designer with a wide selection of cartridge and in-line products. These valves can also be used in a C S or C S cavity. Four standard cracking pressures permit energy savings, while tailoring the hydraulic system requirements to minimize shock. Unique dual spring design provides high operational efficiency and a low pressure spring option for effective anti-cavitation protection. Unique design provides compact package and low pressure drops that match or exceed current market expectations and provide for excellent repeatability and stability. : pilot ratio satisfies simple load holding application requirements, while providing smooth operation and longer operating life. Optional adjustable override releases the load for situations where pilot pressure is not always available. Single pilot check Also offered are SPC-8 and SPC- single pilot check valves with pressures to 4 bar (5 psi) and flows to L/min (6 USgpm). These valves operate similar to the POC product but offer an opposite flow path which offers the designer a choice of pilot operated check valve when laying out a custom manifold for ease of design. Supporting products Integrated Hydraulics screw in cartridge valves are available in a wide range of mounting configurations and porting options to provide flexibility in developing circuits. Housings are available in either aluminum bar ( psi) or steel 5 bar (5 psi) configurations. All are available with a choice of BSPP (ISO 8/) or SAE style ports. -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

5 - Additional products, product lines, and services offered by Eaton - More Whether they re original equipment or genuine remanufactured components, high performance hydraulic pumps and motors from Eaton deliver the functionality and durability you need to keep working. Industry leading vane, piston, gear and geroter pumps and motors from Vickers, Eaton, Char-Lynn and Hydrokraft offer you hydraulic power components that are built tough for demanding industrial applications because uptime is critical in your busy world. For more information, visit EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9-5.A

6 FPR - Check Valve uided Poppet Line Mounted Up to L/min (8 USgpm) Up to 5 bar (5 psi) Sectional View Operation These are in line check valves. Free flow is allowed from port to port when the inlet pressure rises higher than the crack pressure. Flow is prevented between port and port by the poppet resting on the seat within the body. Features All steel construction with hardened and precision ground poppet gives excellent flow capability and shut-off characteristics with good tolerance to particle (dirt) contaminated fluid. Inlet () Performance Data Description Outlet () A range of line mounted valves for convenient installation into hydraulic circuits. Valves allow flow at a low pressure drop (from.5 bar, 7 psi) in the free flow direction and prevent flow in the reverse direction. The range extends from /4 BSP to / BSP ( liters/min US PM to min/min, 8 US PM) nominal flow with cracking pressures from.5 to 5 bar (7 to 7.5 psi). Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (8 USgpm) Valve material Working parts hardened and ground steel. External surfaces zinc plated. Mounting position Line mounted Weight FPR /4. kg (.4 lbs) FPR.89 kg (.95 lbs) FPR /8.9 kg (.4 lbs) FPR /4.75 kg (.85 lbs) FPR /.5 kg (.55 lbs) FPR /. kg (4.6 lbs) FPR /4.5 kg (. lbs) Recommended Filtration level BS554/4 Class 8/ (5 micron nominal) Operating Temp - C to +9 C (- C to +94 F) Nominal Viscosity Range 5 to 5 cst Pressure Drop FPR /4" Flow - L/min FPR /8" bar Pressure - psi FPR /" Flow - L/min FPR /4" bar Pressure - psi 4.5 bar bar Flow - US gpm 8 4 bar.5 bar Flow - US gpm Pressure - bar Pressure - bar Pressure - psi Pressure - psi Flow - L/min bar bar bar Flow - US gpm Flow - L/min bar bar.5 bar Flow - US gpm Pressure - bar Pressure - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

7 FPR - Check Valve uided Poppet Line Mounted Up to L/min (8 USgpm) Up to 5 bar (5 psi) Model Code FPR **.5 Cracking Pressure FPR/4 - Inline valve FPR/8 - Inline valve FPR/ - Inline valve FPR/4 - Inline valve FPR - Inline valve FPR/4 - Inline valve FPR/ - Inline valve bar (standard). -. bar (FPR/4, /8, /, /4 Only) bar bar. -. bar Pressure Drop FPR " Pressure - psi Flow - L/min bar bar.5 bar 6 9 Flow - US gpm Pressure - bar Pressure - psi Flow - L/min bar bar bar Flow - US gpm Pressure - bar FPR /" Flow - L/min bar 7.5 Pressure - psi bar.5 bar Flow - US gpm Pressure - bar A B C Flow Rate Pressure A B C FPR /4 L/min ( USgpm) 5 bar (5 psi) 6 9 /4" BSP FPR /8 L/min (8 USgpm) 5 bar (5 psi) 68 4 /8" BSP FPR / 45 L/min ( USgpm) bar (457 psi) 78 7 /" BSP FPR /4 85 L/min ( USgpm) bar (4 psi) 88 6 /4" BSP FPR 4 L/min (7 USgpm) 5 bar (6 psi) 46 " BSP FPR /4 L/min (58 USgpm) 5 bar (6 psi) 4 55 /4" BSP FPR / L/min (8 USgpm) bar ( psi) 55 6 /" BSP EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

8 CA - Check Valve Direct acting, ball type 4 L/min ( USgpm) 5 bar (5 psi) Sectional View Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Cartridge design with machined seats and precision ground balls gives excellent flow reseat characteristics. Installation into the -port 7/8" UNF cavity gives easy fitment and serviceability. Performance Data Outlet () Description Inlet () These cartridge check valves allow flow at a low pressure drop, with cracking pressure from.5 to 7 bar (7 to psi) in the free flow direction and close to prevent flow in the reverse direction. They fit into simply machined cavities and are therefore ideal for installation into custom designed Hydraulic Integrated Circuits, manifold blocks and other hydraulic equipment. Ratings and Specifications Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow 4 L/min ( USgpm Maximum pressure 5 bar (5 psi) Cracking pressures.5 bar (7 psi).5 bar ( psi).5 bar (5 psi) 7. bar ( psi) Cartridge material All steel construction. External parts electroless zinc plated. Standard housing material Standard aluminum (up to bar). Add suffix "77" for steel option. Mounting position Unrestricted Cavity number A879 (See Section M) Torque cartridge into cavity 45 Nm ( lbs. ft.) Weight.5 kg (. lbs.) Seal kit number SK96 (Nitrile), SK96V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- C to +94 F) Leakage. ml/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Pressure Drop Curves Flow - L/min Pressure - psi bar 5 5 Pressure - bar Flow - US gpm -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

9 CA - Check Valve Direct acting, ball type 4 L/min ( USgpm) 5 bar (5 psi) Model Code CA** W.5 S 4 CA - Cartridge only CA5 - Cartridge and body Port Size Code Port Size Housing Number - Body Only Aluminium Steel W /4" BSP A485 W /8" BSP A4 A475 6T /8" SAE A5676 A484 S Cracking Pressure bar (7 psi) bar ( psi) bar (5 psi) bar ( psi) 4 Seals - Nitrile (For use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) Dimensions mm (inch) Cartridge Only Single Valve /4", /8" Ports CA5 6.5 (.6) max. A/F. (.) 6. (.6) 5. (.97) 44. (.7) /4-6 UNF-A holes Ø6.8 (.7) thro.7 (.5) 8.8 (.) 5.9 (.6).8 (.5) 8. (.) Outlet () 44.8 (.76) 5.8 (.) Note: For applications above please consult our technical department or use the steel body option. Inlet () EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

10 CV-4 - Check Valve Direct acting, ball type 7.6 L/min ( USgpm) 5 bar (5 psi) Sectional View Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Compact screw in cartridge design. Hardened steel ball to limit leakage and extend service life. Performance Data Descriptions This is a compact ball type check valve ideal for use in manifolds for load sense or low flow applications. 9 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 7.6 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) bar (5 psi) Internal leakage, port to 5 drops/min bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-4- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Weight: cartridge only.4 kg (.9 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E. I. DuPont Pressure Drop 4 Pressure vs. Flow - L/min (,8 cst 49 F) Pressure Drop - psi 4 7 Pressure Drop - bar.5.5 Flow - USgpm (5 SUS F).5 -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

11 CV-4 - Check Valve Direct acting, ball type 7.6 L/min ( USgpm) 5 bar (5 psi) Model Code CV 4 (V) B *** ** Function CV - Check valve Size 4-4 size Seal Material Blank - Buna-N V - Viton 4 Style B - Ball type 5 Port Size - Cartridge only 6 Free Flow Cracking Pressure 5 -,4 bar (5 psi) 7 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Cartridge Only CV-4 9/6" HEX,7 (.5) 7/6 - UNF - A,8 (.859) Ø 8,64 (.4) Note: Torque cartridge in aluminum or steel housing to Nm (6- ft. lbs). WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

12 CV-8 - Check Valve Direct acting, poppet type L/min (8 USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Compact screw in cartridge design. Hardened steel ball to limit leakage and extend service life. Sectional View Performance Data Description This is a compact poppet type check valve ideal for use in manifolds for load sense or low flow applications. 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 L/min (8 USgpm) Cracking L/min (.5 USgpm) bar (4 psi) -.7 bar ( psi) 5 -. bar (5 psi) bar (5 psi) -.7 bar ( psi) 6-4. bar (6 psi) Internal leakage 5 drops/min. 5 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-8- Fluids All general purpose hydraulic fluids such as: MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight: cartridge only.4 kg (.9 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop 5 Flow - L/min (,8 cst 49 C) 4 Pressure Drop - psi A B C D Pressure Drop - bar Flow - USgpm (5 SUS F) A CV-8-P-O-6 B CV-8-P-O-5 C CV-8-P-O- D CV-8-P-O-4 -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

13 CV-8 - Check Valve Direct acting, poppet type L/min (8 USgpm) 5 bar (5 psi) Model Code CV 8 (V) P (*) ** *** Function CV - Check valve Size 8-8 size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size Code Port Size Housing Number Cartridge only Aluminum Fatigue rated Steel Fatigue rated 4T SAE T SAE T SAE /4 BSPP /8 BSPP See section J for housing details. 7 Cracking Pressure bar (4 psi) -.7 bar ( psi) 5 -. bar (5 psi) bar (5 psi) -.7 bar ( psi) 6-4. bar (6 psi) 8 Special features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Cartridge Only CV-8, (.87) hex 8,6 (.4) Installation Drawing (Steel) 9. (.6) 5.5 (.6).75" 6 Thd. 7,8 (.9) 8. (.5) 5.8 (.).4 (.) 44. (.7) 5.8 (.) X 7. (.8) 9. (.75) Ø,6 (.497) Note: Torque cartridge in aluminum or steel housing to 4-4 Nm (5- ft. lbs). WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

14 CV-/CV- - Check Valve Direct acting, poppet type Up to 76 L/min ( USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Hardened and ground working parts to limit leakage and extend service life. Sectional View Performance Data Ratings and Specifications Description This is a compact poppet type check valve ideal for use in manifolds for load sense or low flow applications. Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) CV/CV bar ( psi)/5 bar (5 psi) Cartridge fatigue pressure (infinite life) CV/CV bar ( psi)/5 bar (5 psi) Rated flow 76 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) -. bar ( psi) -.69 bar ( psi) -.8 bar ( psi) bar (5 psi) bar (4 psi) bar (65 psi) bar ( psi) bar (8 psi) bar ( psi) Internal leakage, Port to 5 drops/min. 5 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum or steel Weight: cartridge only.8 kg (.7 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A B C 5 5 Pressure Drop - bar Flow - USgpm (5 SUS F) A CV(*) *P B CV(*) *P 4 C CV(*) *P -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

15 CV-/CV- - Check Valve Direct acting, poppet type Up to 76 L/min ( USgpm) 5 bar (5 psi) Model Code CV(*) * P * ** *** Function CV - Check valve bar ( psi) CV - Check valve 5 bar (5 psi) Size - size Seal Material N - Buna-N V - Viton 4 Style P - Poppet 6 Port Size Code Port Size Housing Number Cartridge only Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated B /8 BSPP T SAE T SAE 8-75 /4 BSPP /8 BSPP H SAE H SAE See section J for housing details. 5 Valve Housing Material - None A - Aluminum S - Steel 7 Free Flow Cracking Pressure -. bar ( psi) (anticavitation) -.69 bar ( psi) (anticavitation) -,8 bar ( psi) 5 -,4 bar (5 psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) bar ( psi) 8 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Cartridge Only CV- 5,4 (.) hex.875" 4 Thd. Torque cartridge in aluminum housing Nm (5-4 ft. lbs).torque cartridge in steel housing 68-7 Nm (5-55 ft. lbs) A - 8- Nm (8-9 ft. lbs) 8, (.) S Nm (- ft. lbs). Installation Drawing (Steel) 6.5 (.5) 8. (.) 5.8 (.) X Ø 7.4 (.8) 9 (.75),7 (.5) Ø 5,8 (.6) (.7) (.75) (.87) (.75) (.5) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9-4.A

16 CV6- - Check Valve Direct acting, poppet types, side in, nose out 76 L/min ( USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Hardened and ground working parts to limit leakage and extend service life. Robust design with a 5 bar max pressure rating. Sectional View Performance Data Ratings and Specifications Description This is a poppet type screwin cartridge valve allowing free flow from port to. This gives flexibility to the manifold designer allowing the production of the most compact solution 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) bar (45 psi) Rated flow 76 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) bar (5 psi) 5 -. bar (5 psi) bar (5 psi) bar (5 psi) Internal leakage, Port to 5 drops/min. 5 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only.8 kg (.7 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A B C 6 Pressure Drop - bar D Flow - USgpm (5 SUS F) A CV6--P-O-5 B CV6--P-O-5 C CV6--P-O-5 D CV6--P-O-5-5.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

17 CV6- - Check Valve Direct acting, poppet types, side in, nose out 76 L/min ( USgpm) 5 bar (5 psi) Model Code CV6 (*) P (*) ** *** Function CV6 - Check valve Size - size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size Code Port Size Housing Number Cartridge only 7 Free Flow Cracking Pressure bar (5 psi) (Anti-cavitation) 5 -. bar (5 psi) bar (5 psi) bar (5 psi) Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated B /8" BSPP T SAE T SAE 8-75 /4 BSPP /8 BSPP H SAE H SAE See section J for housing details. 8 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Note: Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) Cartridge Only CV- 5,4 (.) hex.875" 4 Thd. 8, (.) Installation Drawing (Steel) 6.5 (.5) 8. (.) 5.8 (.) X Ø 7.4 (.8) 9 (.75),7 (.5) (.7) (.75) (.87) (.75) (.5) Ø 5,8 (.6) WARNIN The cavity should be machined to 4,9 (.56) maximum diameter and 6, (.47) maximum depth (see cavity detail, page M-) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9-5.A

18 CV- - Check Valve Direct acting, poppet type 4 L/min ( USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Pilot Operation Hardened and ground working parts to limit leakage and extend service life. Robust design with a 5 bar max pressure rating. 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) Free flow cracking L/min (.5 USgpm) bar (.5 psi) bar (5 psi) bar ( psi). -.8 bar ( psi) 4. -,76 bar (4 psi) ,5 bar (8 psi) 6. -, bar (6 psi) Internal leakage, Port to 5 drops/min. 5 bar (5 psi) Hysteresis Less than,5 bar (5 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, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only,4 kg (.54 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop Pressure Drop - psi Flow - L/min (,8 cst 49 C) 4 A B C Flow - USgpm (5 SUS F) Pressure Drop - bar A CV--P-O-8 B CV--P-O- C CV--P-O-.5-6.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

19 CV- - Check Valve Direct acting, poppet type 4 L/min ( USgpm) 5 bar (5 psi) Model Code CV (V) P (*) *** (U) ** Function CV - Check valve Size - size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port size Code Port Size Housing Number Cartridge only C--U C-- C--U C-- Aluminum Aluminum Steel Steel Light Duty Fatigue Rated Fatigue Rated Fatigued Rated T SAE T SAE /" BSPP /4 BSPP See section J for housing details. 7 Cavity Blank - Cavity without undercut U - Cavity with undercut 8 Cracking Pressure.5 -,7 bar (.55 psi) 5. -,5 bar 5 psi) -,69 bar ( psi) -,8 bar ( psi) 4 -,75 bar (4 psi) 8-5,5 bar (8 psi) 6 -, bar (6 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). Cartridge Only CV,6 (.5) hex Installation Drawing (Steel).7 (.5) 8.9 (.74) 8.7 (.).6" Thd. 8,9 (.75) (.5) (.5) X Ø. (.46) 44,7 (.76).7 (.5) 88.9 (.5) 6.5 (.5) 5.4 (.) 5.8 (.) Ø,75 (.95) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9-6.A

20 CV-6/CV-6 - Check Valve Direct acting, poppet type 5 L/min (4 USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. In the other direction the valve is closed. Features Hardened and ground working parts to limit leakage and extend service life. Sectional View CV-6 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) CV-6 bar ( psi)/cv 5 bar (5 psi) Cartridge fatigue pressure (infinite life) CV-6 bar ( psi)/cv-6 5 bar (5 psi) Rated flow 5 L/min (4 USgpm) Free flow cracking L/min (.5 USgpm) 5 -,4 bar (5 psi) -,4 bar ( psi) -,7 bar ( psi) 4 -,67 bar (4 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) Note: Only the 5 psi option is available for CV-6 Internal leakage, Port to 5 drops/min. bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-6- Fluids All general purpose hydraulic fluids such as: MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only,6 kg (.58 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description Pressure Drop This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop - psi B Flow - L/min (,8 cst 49 C) A Pressure Drop - bar D C 4 Flow - USgpm (5 SUS F) A CV(*)-6-P-O-5 B CV(*)-6-P-O- C CV(*)-6-P-O-5 D CV(*)-6-P-O-5-7.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

21 CV-6/CV-6 - Check Valve Direct acting, poppet type 5 L/min (4 USgpm) 5 bar (5 psi) Model Code CV(*) 6 (V) P *** ** Function CV - Check valve, bar CV - Check valve, 5 bar Size 6-6 size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Port Size Code Port Size Housing Number Cartridge only 6B /4" BSPP Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated T SAE -754 T SAE /" BSPP /4 BSPP H SAE H SAE 566 See section J for housing details. 6 Cracking Pressure 5 -,4 bar (5 psi) (Anti-cavitation) -,4 bar ( psi) -.7 bar ( psi) bar (4 psi) bar (5 psi) bar ( psi) Only the 5 psi option is available for CV-6 7 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) Cartridge Only Installation Drawing (Aluminum) CV, CV 8, (.5) hex, (.5).7 (.5) 8.4 (.)." Thd (.5) 6.5 (.5) 44,5 (.75). (.4) 68.8 (.688) 88.9 (.5) X 8.74 (.44).8 (.5) Ø 8,5 (.) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9-7.A

22 CV- - Check Valve Direct acting, poppet type 7 L/min (6 USgpm) bar ( psi) Operation This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Features Hardened and ground working parts to limit leakage and extend service life. Robust design with a bar ( psi) max pressure rating. 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 7 L/min (6 USgpm) Free flow cracking L/min (.5 USgpm) 5 -,4 bar (5 psi) 5 -, bar (5 psi) -,7 bar ( psi) 6-4,4 bar (6 psi) - 6,9 bar ( psi) Internal leakage, Port to 5 drops/min. bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum Weight, cartridge only,49 kg (.9 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A 75 B 5 C Pressure Drop - bar 4 Flow - USgpm (5 SUS F) 5 6 A CV--P-O- B CV--P-O- C CV--P-O-5-8.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

23 CV- - Check Valve Direct acting, poppet type 7 L/min (6 USgpm) bar ( psi) Model Code CV (V) P *** *** Function CV - Check valve Size - size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Port Size Code Port Size Housing Number Aluminum Aluminum Light Duty Fatigue Rated Cartridge only 8B " BSPP T SAE /4" BSPP " BSPP H SAE H SAE Free Flow Cracking Pressure 5 -,4 bar (5 psi) Anti-cavitation 5 -, bar (5 psi) -,7 bar ( psi) 6-4,4 bar (6 psi) - 6,9 bar ( psi) 7 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Note: Torque cartridge in aluminum housing 8-55 Nm (95-5 ft lbs) Cartridge Only CV Installation Drawing (Aluminum) 47,6 (.87) hex 4, (.55) 4. (.6).65" Thd. 76. (.).6 (4.) X 8.74 (.44) 6. (.4) 57, (.5). (.4) 8. (.9).6 (4.) Ø 6,44 (.45) EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9-8.A

24 CA - Check Valve Direct acting, poppet style L/min (8 USgpm) 5 bar (5 psi) Operation This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Features Hardened and ground working parts to limit leakage and extend service life. Rhobust design with a 5 bar (5 psi) max pressure rating. Sectional View Performance Data Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Typical application pressure (all ports) Rated flow Free flow cracking pressure Leakage Temperature range 5 bar (5 psi) L/min (8 USgpm). - bar (4.4 psi). - bar (4.5 psi). - bar (9 psi) bar (58 psi) bar ( psi). millilitres/min nominal to 9 C ( to 94 F) Cavity A45 (C--) See Section M) Torque cartridge into cavity 5 Nm ( lbs ft) Filtration BS554/4 Class 8/ (5 micron nominal) Cartridge material All steel construction. External parts electroless zinc plated. Standard housing material Aluminum (up to bar) Add suffix 77 for steel option. Norminal Viscosity Range 5 to 5 cst Weight.48 kg (.6 lbs.) Mounting position Unrestricted Seal kit SK96 (Nitrile) SK96V (Viton ) Viton is a registered trademark of E.I. DuPont Descriptions This is a poppet type, dirct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop Pressure - psi 5 5 Flow - L/min S S.S.S S Flow - US gpm Pressure - bar -9.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

25 CA - Check Valve Direct acting, poppet style L/min (8 USgpm) 5 bar (5 psi) Model Code CA*** W. S Function CA - Cartridge only CA55 - Cartridge and body 4 Port Size - Bodied Valves Only Code Port Size Housing Number Aluminum Steel W /4" BSP C45 C46 T /4" SAE C4 C4 Cracking Pressure. -. bar (4.4 psi). -. bar (4.5 psi). -. bar (9 psi) bar (58 psi) bar ( psi) 4 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Note: For applications above please consult our technical department or use the steel body option. Cartridge Only CA 46 A/F Single Valve /4", /" Ports CA55 5. (.98). (.6) 76. (.) 5. (.59) 65. (.56).6 (4.) 7.5 (.85). (.9) 4. (.57) 8. (.5).6 (4.) 8. (.5) EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9-9.A

26 CV6- - Check Valve Direct acting, poppet type with orifice 76 L/min ( USgpm) 5 bar (5 psi) Operation Features The poppet remains on its seat until the pressure drop across the orifice overcomes the spring force over the seat area. Full flow will then take place from port to. Flow from port to will be restricted by the orifice. Hardened and ground working parts extend service life. Robust design with a 5 bar (5 psi) max pressure rating. Compact simple 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) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 76 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) -, bar ( psi) -,69 bar ( psi) -,8 bar ( psi) 5 -,4 bar (5 psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) - 4,5 bar ( psi) Orifice size range.5 to.5" ( mm) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum or steel Weight, cartridge only,49 kg (.9 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description This is a poppet type screw-in cartridge check valve with a by-pass orifice. This will allow free flow into an actuator while restricting the flow out of it Pressure Drop Pressure Drop - psi 5 4 Flow - L/min (,8 cst 49 C) A B C 5 5 Flow - USgpm (5 SUS F) Port to Pressure Drop - bar A CV6 *P B CV6 *P 4 C CV6 *P -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

27 CV6- - Check Valve Direct acting, poppet type with orifice 76 L/min ( USgpm) 5 bar (5 psi) Model Code CV6 * P * *** *** *** Function CV6 - Check valve with bypass orifice Size - size Seal Material N - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material - No housing A - Aluminum S - Steel 6 Free Flow Cracking Pressure -, bar ( psi) (Anti-cavitation) -,69 bar ( psi) (Anti-cavitation) -,8 bar ( psi) 5 -,4 bar (5 psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) - 4,5 bar ( psi) 7 Port Size Code Port Size Housing Number Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated B /8" BSPP T SAE T SAE 8-75 /4" BSPP /8" BSPP H SAE H SAE Orifice Size Specify in thousandths of an inch Ø -.5 max Ø -.5 min 9 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Torque cartridge in housing A Nm (5-4 ft lbs) S Nm (5-55 ft lbs). Cartridge Drawing Installation Drawing (Steel) CV6-8, (.) 8. (.) 9 (.75) 5,4 (.) hex 6.5 (.5) 5.8 (.) X Ø 7.4 (.8).875" 4 Thd.,7 (.5) (.7) (.75) (.87) (.75) (.5) Ø 5,8 (.6) EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

28 CV6-6 - Check Valve Direct acting, poppet type with orifice 5 L/min (4 USgpm) bar () psi Sectional View Operation The poppet remains on its seat until the pressure drop across the orifice overcomes the spring force over the seat area. Full flow will then take place from port to. Flow from port to will be restricted by the orifice. Features Hardened and ground working parts extend service life. Robust design with a bar ( psi) max pressure rating. Compact simple solution in a single cartridge. Performance Data Ratings and Specifications Description This is a poppet type screw-in cartridge check valve with a by-pass orifice. This will allow free flow into an actuator while restricting the flow out of it. 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 5 L/min (4 USgpm) Free flow cracking L/min (.5 USgpm) 5 -, bar ( psi) -,4 bar ( psi) -,7 bar ( psi) bar (4 psi) 5 -,45 bar (5 psi) bar ( psi) Orifice size range.5 to.5" ( mm) Temperature range 4 to C ( 4 to 48 F) Cavity C-6- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum Weight, cartridge only,6 kg (.58 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop Pressure Drop - psi Flow - L/min (,8 cst 49 C) A B C Pressure Drop - bar A CV6 6*P 5 B CV6 6*P 4 Flow - USgpm (5 SUS F) Port to C CV6 6*P 5 -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

29 CV6-6 - Check Valve Direct acting, poppet type with orifice 5 L/min (4 USgpm) bar () psi Model Code CV6 6 * P * *** *** *** Function CV6 - Check valve with bypass orifice Size 6-6 size Seal Material N - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material - No housing A - Aluminum 6 Port Size - Cartridge only 7 Free Flow Cracking Pressure 5 -,4 bar (5 psi) (Anti-cavitation) -,4 bar ( psi) (Anti-cavitation) -,7 bar ( psi) 4 -,76 bar (4 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) Code Port Size Housing Number Aluminum Light Duty 6B /4" BSPP T SAE Aluminum Fatigue Rated 4 /" BSPP /4" BSPP H SAE H SAE Orifice Size Specify in thousandths of an inch Ø -.5 max Ø -.5 min 9 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Note: Torque cartridge in aluminum housing 8- Nm (8-9 ft. lbs). Cartridge Drawing CV6-6,7.7 (.5).5" HEX Installation Drawing (.5) 8.4 (.)."- Thd. 44,58 (.75) 88.9 (.5). (.4) 6.5 (.5) 68.8 (.688) 88.9 (.5) X 8.74 (.44).8 (.5) Ø 8,5 (.) EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

30 SPC-8 - Check Valve Pilot-to-open, poppet type 9 L/min (5 USgpm) 4 bar (5 psi) Sectional View Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Performance Data Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. 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) 4 bar (5 psi) Rated flow 9 L/min (5 USgpm) Pilot ratio : Cracking pressure 5 -, bar (5 psi) 5 -,4 bar (5 psi) 65-4,5 bar (65 psi) Internal leakage (all leak 4 bar (5 psi) Port to Port to unsealed piston* *Unsealed piston only supplied with 5 psi spring option Temperature range Cavity Fluids 5 drops/min. maximum at 4 bar (5 psi) 4 cc/min. maximum, zero leakage with sealed piston 4 to C ( 4 to 48 F) C-8- All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc Recommended filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only,7 kg (.5 lbs.) Seal kit -76 (Buna-N) -77 (Viton ) Viton is a registered trademark of E.I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A 6 B 8 C 4 D 4 5 Flow - USgpm (5 SUS F) Pressure Drop - bar A CV6 6*P 5 B CV6 6*P C CV6 6*P 5 -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

31 SPC-8 - Check Valve Pilot-to-open, poppet type 9 L/min (5 USgpm) 4 bar (5 psi) Model Code SPC 8 (X) P (*) ** ** SPC - Single pilot check valve Size 8-8 size Seals Blank - Buna-N V - Viton U - Buna-N with no piston seals W - Viton with no piston seals 4 Style P - Poppet 5 Valve Body Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size Code Port Size Housing Number Aluminum Fatigue Rated Steel Fatigue Rated 4T SAE T SAE /4" BSPP /8" BSPP Cracking Pressure 5 -, bar (5 psi) 5 -,4 bar (5 psi) 65-4,5 bar (65 psi) 8 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Note: Torque cartridge in aluminum or steel housing to 4-4 Nm (5- ft lbs). Cartridge Drawing Installation Drawing (Steel) SPC-8, (.87) hex.75" 6 Thd. 8,5 (.) 5.5 (.6) 7.4 (.8) 9. (.6) 54. (.) (.65) 9.7 (.7) 4,4 (.6) 9. (.75) -Slots. (.) 56.9 (.4) 6.5 (.5) 9. (.75) Ø 4, (.559) Ø 5,8 (.6) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

32 SPC- - Check Valve Pilot-to-open, poppet type L/min (6 USgpm) 4 bar (5 psi) Sectional View Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Performance Data Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. WARNIN Do not use Single Pilot Check Valves in load holding applications where either overrunning loads are possible or load release speed is critical. Failure to observe these guidelines may result in bodily injury or damage to equipment. 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) 4 bar (5 psi) Rated flow L/min (6 USgpm) Pilot ratio 4: Cracking L/min (.5 USgpm) 5 -,7 bar (5 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) Internal leakage Port to 5 drops/min. maximum at bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum Weight, cartridge only,8 kg (.8 lbs.) Seal kit (check valve) -567 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop Pressure Drop - psi Flow - L/min (,8 cst 49 C) A SPC--P-- B SPC--P--5 A B 4 6 Flow - USgpm (5 SUS F) C D C SPC--P--5 D - Port to (piloted open) Pressure Drop - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9

33 SPC- - Check Valve Pilot-to-open, poppet type L/min (6 USgpm) 4 bar (5 psi) Model Code SPC (X) P ** *** Function SPC - Single pilot check valve Size - size Seal Material Blank - Buna-N V - Viton U - Buna-N with no piston seals W - Viton with no piston seals 4 Style P - Poppet 5 Port Size Code Port Size Housing Number Aluminum Aluminum Light Duty Fatigue Rated Cartridge only B /8" BSPP T SAE /4" BSPP /8" BSPP H SAE H SAE See section J for housing details. 6 Free Flow Cracking Pressure 5 -,7 bar (5 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) 7 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Torque cartridge housing A Nm (5-4 ft. lbs). B Nm (5-55 ft. lbs) Cartridge Drawing SPC- 5,4 (.) hex 8, (.) Installation Drawing 4,6 (.97) 7.9 (.) Thd. 8,8 (.74) 57. (.5) X7,4 (.8) 4,8 (.7) 75,4 (.97) 46,8 (.84) 5 (.97) 9.5 (.8) 57.5 (.5) 75.4 (.97) 5,4 (.) Ø 5,8 (.6) Ø 7,4 (.684) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9 -.A

34 4CK - Check Valve Pilot-to-open, poppet type L/min (8 USgpm) 5 Bar (5 psi) Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Sectional View Performance Data Ratings and Specifications Pilot () Valve () Cyl () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (8 USgpm) Max setting 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened & ground steel. Electroless zinc plated body. Standard housing material Standard aluminium (up to bar) Add suffix 77 for steel option Mounting position Unrestricted Cavity number A66 (See section M) Torque cartridge into cavity 45 Nm ( lbs ft) Weight 4CK.8 kg (.8 lbs) 4CK5.4 kg (.75 lbs) 4CKK5.76 kg (.67 lbs) Seal kit number SK4 (Nitrile) SK4V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- to +94 F) Leakage. milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E.I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Pressurep - psi Flow - L/min 4 5 Free flow Piloted open Flow - US gpm Pressure - bar -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E December 9