FULFLO SPECIALTIES COMPANY...

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2 ULLO SPLTS OMPNY... OUR MSSON STTMNT: ulflo Specialties will strive to be the world leader in the valve manufacturing industry. Our mission is to achieve and sustain through continual improvement, the highest quality of product and services. ulflo will ensure that every employee, vendor, and subcontractor share a common goal of quality and reliability at an affordable price. Pioneers in luid Power stablished in 1912, ULLO was incorporated in 19 under its present name and trademark. Patents for the original guided piston, direct-acting relief valve were obtained in 195, coincident with the onset of fluid power systems. The need for providing large flows without excessive bulk was subsequently met by the pilot-valve-controlled relief valve, a patent on which was issued to ULLO in 19 (U.S. Patent No. 2,,522). ULLO is located in lanchester, Ohio just 0 miles northeast of incinnati, close to some of the state s Product nformation. Please include complete product data as described in the catalog. Note: ll valves will be set midrange pressure of the spring, unless otherwise specified. nstructions. ll requirements specific to a customer s order must be stated on original purchase order. This includes, but is not limited to, tagging, markings, documentation, packaging, ship via collect account numbers, etc ll requirements regarding a puchase order should be verified by the faxed acknowledgment. Shipping nformation. Please include purchaser s name, complete address and requested routing. Product many be shipped via round, insured parcel post or commercial motor freight. uarantee. ulflo products are guaranteed against defects in workmanship or material for one year after date of shipment. ulflo is not liable for any damages resulting from misuse or misapplication of its product. Specifications. or continued improvement of our product line, we reserve the right to change product specifications without prior notice. ancellations. harges are based on work accomplished prior to the receipt of cancellation. Returned Material. n R (Return oods uthorization) Number must be issued before returning any valves, parts not accepted. The ulflo Specialties ompany, 1 TRMS N ONTONS largest manufacturing centers. lanchester is served by air from reater incinnati irport and alternately from ayton Municipal irport. rom incinnati, travel nterstate 71 north to nterstate 275, east to US 28 and northeast to lanchester. rom ayton, travel nterstate 75 south to Route 12 and southeast to lanchester. f you plan to visit ULLO, advise us of your itinerary and we will be happy to assist with transportation and hotel arrangements. Restocking. Product returned is subject to a restocking charge. Restocking fee is 25% of List Price on standard product line. Special products are subject to additional charges. Prices..O.. lanchester, Ohio. Prices are subject to change without notice. Terms. Net 0 days to buyers with approved credit: all other shipments are.o.., M / or VS. nvoicing. uyers will be invoiced by ulflo Specialties, 59. ancy Street, lanchester, Ohio 57. elivery. eliveries are scheduled after receipt of orders which should include all required technical information. Shipping dates are estimated based on conditions prevailing at the time of quotation, but are not guaranteed. ulflo shall not be liable for delays in delivery due to causes beyond its reasonable control. ulflo shall not be liable for any special or consequential damages caused by or resulting from delay, failure to manufacture or deliver. Minimum Order. Minimum order charge required is $0.00. xpediting ee. Orders may be subject to a % net expediting fee. hange Order ee. There is a $25.00 change order fee, per order. U TO NNRN UPRN, T MNSONS N SPTONS R SUT TO N, UT R ORRT R T TM O PRNTN. 2

3 ONTNTS eneral nformation / Terms and onditions NNRN T V-SRS VLVS V-SRS VLVS SV SRS VLVS OV-SRS VLVS -SRS VLVS PPLTONS NNRN T Valve esign haracteristics Valve Sizing-Use of Performance harts Pipe Sizing-Use of the Nomograph pplication iagrams Spring Material & Temperature hart onnections S O-Ring oss Socket Weld Standard Materials STM/SM Specifications Material odes O-Ring and Pad Materials Max Temp. Max Pressure Orifice rea & Piston/ody Tolerances lange and rilling imensions V-SRS VLVS pplication and nstallation Valve Setting Maintenance isassembly ssembly Number dentification hart Standard Spring Pressure Range hart imensions and Parts List V, V, VS, VSS, V-SP V, V, VS, VSS, V-SP V, V, VS, VSS V-P, V-P, VS-P, VSS-P V, V, VS, VSS V-P, V-P, VS-P, VSS-P Performance harts V-SRS VLVS pplication and nstallation Valve Setting Maintenance isassembly ssembly Number dentification hart Standard Spring Pressure Range hart imensions and Parts List V, V, VS, VSS V, V, VS, VSS Performance harts OV-SRS VLVS pplication and nstallation Valve Setting Maintenance isassembly ssembly Number dentification hart Standard Spring Pressure Range hart imensions and Parts List OV, OV, OVS, OVSS OV, OV, OVS, OVSS Performance harts SRS VLVS pplication and nstallation Valve Setting Maintenance isassembly Model Number and Ordering nformation Standard Spring Pressure Range hart irect cting Valves imensions and Parts List ,,SS ,,SS Performance harts nternal Pilot Operated Valves isassembly imensions and Parts List P, P, SSP P, P, SSP Performance harts SV-SRS VLVS (Underwriter Listed) pplication and nstallation Maintenance isassembly Valve Setting Model Number and Ordering nformation Standard Spring Pressure Range hart imensions and Parts List Performance harts Notes PPLTONS Typical pplications & Valve efinitions SPLTY VLVS Please contact ulflo directly for special applications. We can engineer special or modified valves to meet your application.

4 VLV SZN...Use of Performance harts NNRN T ULLO U PSTON VLVS The trademark ULLO expresses the basic principle that the relief valve must have flow capacity equal to that of the pipe lines to which it is connected. The sliding piston concept and internal design contours of ULLO valves provide unique flow and stability characteristics for reliable performance without chatter. ULLO valves are designed to operate reliably at pressures as low as 2 PS and as high as 00 PS. The ULLO valve reduces velocities through all but the controlling interface of the valve thereby minimizing system power loss. Unlike ordinary direct acting relief valves, ULLO guided piston valves are less responsive to transient pressure surges thereby eliminating the tendency to pound, squeal or chatter. Quiet, stable, efficient performance is assured in both load regulation and system protection applications. ULLO valves operate effectively with all types of liquids in the full range of viscosities including hydraulic oils, water, solvents and chemicals. ULLO valves are not designed to be positive shut off, and will pass a minimal amount of leakage before the set pressure. ULLO valves are NOT designed for use with air, gas or steam. Since the ULLO relief valve is a flow-modulating device, pressure flow characteristics are completely different from spring loaded poppet or ball check valves. oth types remain substantially tight up to cracking pressure. When this pressure is exceeded, the conventional valve pops open with a pressure drop at very low flow and an exponential pressure rise as the flow increases. n contrast the ULLO valve causes a pressure rise, over-pressure, as soon as flow starts; pressure increases almost proportionally with flow. Springs and areas on ULLO valves are carefully designed to minimize this over-pressure. oth pressures are important in sizing a valve. racking pressure must be selected high enough to permit system operation at its maximum rated pressure and flow. Over-pressure is limited by the system s capability to withstand the additional pressure and the motor s ability to sustain the pump output at the increased pressure for the required time interval. The over-pressure to produce a certain flow is a function of valve size and spring constant and can be determined with the aid of the over-pressure charts given for the different valve sizes. The valve performance charts are based on tests made with oil of SSU viscosity at 0 and may be used with reasonable accuracy within the conventional range of oil viscosities from 0 to 500 SSU. or operation with high viscosity fluids, consult ULLO s engineering department. n sizing a valve, the first attempt should be to select a valve equal in size to the pipe to which it is connected. larger or smaller valve may be used to suit individual requirements, depending on the permissible amount of over-pressure. ssume we have selected a / valve for 17 PM flow and a cracking pressure of 25 PS. y referring to the pressure range chart, we find that we may use either a or a spring. ssuming a spring, draw a line horizontally at 17 PM in the / valve chart, to intersect the slanted line marked and drop a vertical line to the overpressure scale to read an over-pressure of PS. The 17 PM will be discharged at a pressure of 25 + or 69 PS. The percentage of over-pressure would be /25 X 0 or 1.5%. f a spring is used, extend the horizontal line to the slope and the over-pressure is 70 PSU. The pressure to pass 17 PM would be or 95 PS and the over-pressure would be 21.5%. f the overpressure is higher than desired for the particular application, the procedure may be repeated for the next larger size valve. n some cases, maximum flow through a valve at a given pressure is specified. To determine the cracking pressure, assume a / valve is to pass 12 PM at 50 PS. horizontal line drawn from the 12 PM capacity to the intersection with the spring line results in an over-pressure of 1 PS, therefore the cracking pressure must be 50 1 or 6 PS, and the percentage of over-pressure of only 9 PS, but the cracking pressure would be 1/6 x 0 or 8.8%. The use of a US spring would produce an over pressure of only 9 PS but the cracking pressure would then be 50 9 or 1 PS, which would exceed the rating of the US spring. or sizing valves for higher viscosity than 500 SSU, the following formula is used: V2 x area of valve for SSU V1 V1 = SSU V2 = higher viscosity ssume we have the following application, PM = Viscosity = 12,000 SSU Normally for PM a 1/ valve would be used. Referring to the orifice area chart on page 9, to find the area of a 1/ valve. The area is = 80= x.05=.91 area needed to pass PM gain referring to the orifice area chart, we find that the area of 1 1 / valve is Therefore a 1 1 / valve would be used. To find the over-pressure refer to the performance chart for a 1 1 / valve. Performance charts based on actual test results are available on request. or additional information contact T ULLO SPLTS O.

5 PP SZN...Use of the Nomograph The flow velocity, which must first be determined, is dependent on the viscosity of the fluid and the permissible flow resistance in the piping. Lower velocities are for higher viscosity fluids and/or lower pressure drops; higher velocities are for less viscous fluids and cases where higher pressure drops can be tolerated. n all cases, allowable suction velocities are much lower and the lowest velocities should be used for the more viscous fluids and/or higher suction lifts. Suction velocities are much more critical than discharge velocities. Too high a discharge velocity may only result in excessive power loss but an excessive suction velocity may make the system inoperative or cause damage to the pump and system. fter the velocity has been selected, the nomograph chart is used to determine the inside diameter of the pipe at a given flow rate. or example, assume a flow of 17 gpm and a velocity of 12 fps for the discharge pipe is required. raw a line from the 12 fps point on the velocity scale through the 17 gpm point on the flow rate scale and the extended line intersects the pipe inside diameter scale at 0.76 inches. This inside diameter applies to either pipe or tubing. The correct pipe or tube size also depends on the pressure it must carry. The conversion chart for pipe sizes and schedules facilitates this section. Note the different weights or piping are grouped under various schedule numbers. pproximate pressure for each schedule number may be computed from the formula. Pressure = S x schedule number 00 S is the permissible stress to which the pipe is subjected. Thus, for a stress of,000 psi, the allowable pressure is equal to ten times the schedule number. igher pressures may be carried if higher stresses are allowed. n the example, a schedule 0 pipe is more than adequate for 250 psi. Twice the wall thickness of a / schedule 0 pipe of or Since the actual outside diameter of a / schedule 0 pipe is 1.05, the selection of a / pipe is adequate. / ulflo relief valve should be selected. Operational characteristics of this valve, that is cracking pressure and overpressure, may be determined from the performance chart precisely in the manner explained in the example. The maximum discharge pressure of 285 psi is still well below the safe carrying capacity of the pipe. The design of the ulflo valves is such that if used within their rating and with properly selected springs, the overpressure is not sufficient to endanger system or system components. NNRN T VLOTY T PR SON NORML SUTON VLOTY N PPS NORML MX. SR VLOTY N VLVS MXMUM SR VLOTY N PPS LOW RT LLONS PR MNUT PP SZ NS MTR N NS 5

6 PPLTONS NNRN T ULLO VLV PPLTON 1 TO STM ULLO VLV PPLTON 2 TO STM OPN TNK PUMP LOS TNK PUMP OPN TNK VLV ST PRSSUR QULS STM OPRTN PRSSUR LOS TNK TNK PRSSUR + VLV ST PRSSUR QULS STM OPRTN PRSSUR (XLUN OV-SRS) PPLTON PPLTON TO STM ULLO VLV TO STM SUTON PUMP SUTON PUMP LOS LOOP SUTON PRSSUR + VLV ST PRSSUR QULS STM OPRTN PRSSUR (XLUN OV-SRS) PUMP NTRNL RL ULLO VLV OR PUMPS WT (2) SUTON PORTS N (2) SR PORTS SUTON PRSSUR + VLV ST PRSSUR QULS STM OPRTN PRSSUR (XLUN OV-SRS) 6

7 SPRN MTRL & TMPRTUR RT VLV SZ PRT NO. MTRL MX TMP. STM SP. 17-7PSS 18-8SS R. VNUM OL TMP. MUS WR TYP ON VLV SZ PRT NO. MTRL MX TMP. STM SP. 17-7PSS 18-8SS R. VNUM OL TMP. MUS WR TYP ON NNRN T 1 1 / / 1/ /8 7-S 7-US RS 7-TS 07-S 07-US RS 07-TS 07-S 07-US S 507-US R 607-S 607-US R 2 1 / 2 1 / 1 1 / 707-S 707-US R 807-S 807-US NOTS 7

8 S O-RN OSS ONNTONS NNRN T VLV S 1926 SZ X /8 1/ / 1 1 / 1 1 / X X X X X X X X X X X X X S (Society utomotive ngineers). T R 0. S NO /- 9/16-18 / -16 7/ / / / / /-12 MNSONS (NS) VLV SZ /8 1/ / 1 1 / 1 1 / S MTRL NO. ST RON RSS STL STNLSS SV-9 SV-6 SV-2 SV-065 SV-066 SV-051 SV-09 SV-508 SV-5071 SV-508 SV-6065 SV-6066 SV-7050 SV-807 SV-9 SV-6 SV-2 SV-065 SV-066 SV-051 SV-09 SV-508 SV-5071 SV-508 SV-6065 SV-6066 SV-7050 SV-807 SVS-9 SVS-6 SVS-2 SVS-065 SVS-066 SVS-051 SVS-09 SVS-508 SVS-5071 SVS-508 SVS-6065 SVS-6066 SVS-7050 SVS-807 SVSS-9 SVSS-6 SVSS-2 SVSS-065 SVSS-066 SVSS-051 SVSS-09 SVSS-508 SVSS-5071 SVSS-508 SVSS-6065 SVSS-6066 SVSS-7050 SVSS-807 8

9 SOKT WL & STNR MTRLS SOKT WL VLV SZ /8 1/ / 1 1 / 1 1 / MOL NUMR STL STNLSS MN. MX. SVS- SVSS SVS-07 SVSS SVS-08 SVSS SVS-502 SVSS SVS-6058 SVSS SVS-7067 SVSS SVS-8070 SVSS NNRN T STM/SM SPTONS (Materials Subject to hange) djusting Screws Stop Rings, lands, onnets rass STM 16 Steel STM 8 Stainless Steel SM SM S79 Stop Rings Only lass 16 aps ast ron 01 thru 801 STM 8 lass 0 rass 1- thru 501- STM 16 rass 601 thru 801- SM 62 Steel STM 8, STM 216 W Stainless Steel STM 8, STM 51 8M Locknuts, Retainers Steel STM 8 Stainless Steel STM 582 lass 0 STM 8 lass 0 rass STM 16 Pistons ardened Steel STM SS STM 582 ond., STM SS STM 582 lass 0, STM 8 odies ast ron STM lass rass SM 62 Steel STM 216 rade W Stainless Steel STM 51 8M -- STM 7 8M O-RN & P MTRL SPTONS MTRL UN TYLN-PROPYLN VTON SLON TLON NOPRN LS SUX O R PR RV RS RT RN R MX / MN TMP. O OS MTRL ST RON RSS STL STNLSS STL MN TMP MX TMP OMPOUN 6 50 V 1 S 71 TMP. RN MN. MX MXMUM LLOWL WORKN PRSSUR ST RON RSS STL STNLSS STL 0 PS 0 PS 00 PS 00 PS STM SP OR R & PSTON/OY TOLRNS VLV SZ /8 1/2 / / 1 1 / /2 PSTON R N OY O R T MNSONS N NS OY NO O R T

10 LN N RLLN MNSONS (NS) NNRN T LSS 125 (ST RON) Valve Size 1 1 / 1 1 / 2 1 /* * * lange iameter 1 / 5 / / 9 LSS (RSS STL STNLSS STL) olt ircle olt oles Raised ace iameter iameter iameter lange Thickness rass l/steel /8 1/ 7/16 1/ N/ N/ N/ 9/16 5/8 11/16 / 7/8 15/16 15/16 1 /8 1 / 7 /8 / 5 1 / / 5/8 5/8 5/8 / / / / 2 1 / 2 7 /8 5 /8 1 /8 5 6 /16 Raised ace eight 1/16 1/16 1/16 1/16 1/16 1/16 1/16 Spotface iameter Number of olts Note: rass flanges conform to # NS 16.2 except with raised face. ast iron and steel flanges conform to # SM 16.5 steel specifications. *vailable in ast ron & Steel only R flange finish (Steel & Stainless Steel only) LSS 250 (ST RON) Valve Size lange iameter lange Thickness olt ircle iameter olt oles iameter 1 1 / 1 1 / 7 /8 5 1 / 6 1 /8 6 1 / 11/16 / 1/16 7/8 1 / 7 /8 1 / 5 / / 7/8 / Note: ast iron flanges conform to 250# SM 16.2 steel specifications. LSS 00 (RSS STL STNLSS STL) Valve Size 1 1 / 1 1 / 2 1 / lange iameter 7 /8 5 1 / 6 1 /8 6 1 / 7 1 / 8 1 / lange Thickness 11/16 / 1/16 7/8 1 1 /8 1 1 / olt ircle iameter 1 / 7 /8 1 / /8 6 5 /8 7 7 /8 olt oles iameter / / 7/8 / 7/8 7/8 7/8 Raised ace iameter 2 11 /16 1 /16 9 /16 /16 Raised ace iameter 2 1 / 2 7 /8 5 /8 1 /8 5 6 /16 Raised ace eight 1/16 1/16 1/16 1/16 Raised ace eight 1/16 1/16 1/16 1/16 1/16 1/16 1/16 Note: vailable in steel and cast iron only. rass flanges conform to 00# NS 16.2 except with raised face. Steel flanges conform to 00# SM 16.5 steel specifications R flange finish (Steel & Stainless Steel only) LSS 600 (STL STNLSS STL) Valve lange Size Thickness 1 1 / 1 1 / 2 1 / lange iameter 7 /8 5 1 / 6 1 /8 6 1 / 7 1 / 8 1 / / 15/ / /8 1 1 / 1 /8 1 1 / olt ircle iameter 1 / 7 /8 1 / /8 6 5 /8 R. olt oles iameter / / 7/8 / 7/8 7/8 Raised ace iameter Raised ace eight 1 / 8 1 / 6 /16 1/ Note: Steel flanges conform to 600# SM 16.5 steel specifications R flange finish (Steel & Stainless Steel only) Note: Special langes With rilling On Or Off enter nd Smooth Or Raised ace re vailable Upon Request. 2 1 / 2 7 /8 5 /8 1 /8 5 TKNSS 1/ 1/ 1/ 1/ 1/ 1/ Spotface iameter Spotface iameter Spotface iameter Number of olts 8 Number of olts Number of olts

11 V-SRS VLVS nstallation, Maintenance & Operating nstructions V- SRS VLVS Standard with Screw onnections Standard with lange onnections Stainless Steel with Screw onnections andwheel with Screw onnections andwheel with lange onnections PPLTON The ulflo V -Series range in size from /8 through and operate efficiently with liquids of any viscosity at pressures from to 00 P.S.. The V-Series valves are available in flange or screw type...cartridge or handwheel in a choice of brass, cast iron, steel and stainless steel. Widely used in a variety of applications, the V - Series valves are ideally suited in hydraulic and lubricating systems for load regulation and system protection. Special trim or packings are available for use with fire resisting fluids and other liquids of this type. Unusual applications and special requirements should be referred to our engineering staff for recommendation. NSTLLTON ulflo valves can be mounted in any position. tee may be inserted in the pump discharge line to mount the valve. The correct size of valve should be installed, preferably matching the pump discharge line. Screw the valve into the nipple in the tee, or in the case of the flange style, bolt the valve to the companion flange screwed into the nipple. When the valve is used for frequent bypassing of oil pressure, its outlet should be piped back to the tank. are must be taken to have the discharge well below the oil level in the tank to prevent air entrainment and erratic operation. Only if the valve is used as safety or overload relief and operates infrequently may its discharge be piped back into the pump suction line. requent or continuous operation under these conditions will cause excessive heating of the oil and possible damage. 11

12 V-SRS V- SRS VLVS STTN VLVS Valves may be set with a hydraulic hand pump for cracking pressure. f a test stand is available, valve should be connected to the discharge header with the pump bypass open, and the bypass gradually closed until the desired pressure registers on the gauge. djust valve adjusting screw until valve slightly bleeds at the set bypass pressure and lock adjusting screw. ulflo valves are not designed to be positive shut-off, and will pass a minimal amount of leakage before the set pressure. f a valve is required to bypass a given amount of fluid at a given pressure, a test stand having a flow meter in the pump discharge line must be available. With a valve adjusted for cracking pressure as above, continue closing bypass until the required flow registers on the flow meter and observe pressure. Readjust pressure, if necessary, to obtain desired pressure at desired flow. MNTNN ulflo valves provide reliable chatter-free operation when the system is free of abrasives and foreign matter. ontinuous filtration of the liquid used is strongly recommended. TYPL SSSMLY O STNR TYP VLV To dismantle valve for inspection or cleaning: 1. Remove cap 2. Remove O-Ring. Remove lock nut. Remove adjusting screw 5. Remove retainer 6. Remove spring 7. Remove piston 8. Remove stop ring (Not Recommended) (Special tooling is required to install new stop ring.) nspect valve bore and piston for wear and scoring. Replace broken or damaged parts. lean all parts thoroughly and re-assemble by reversing the above procedure. TYPL SSSMLY O NWL TYP VLV K L To dismantle the valve for inspection or cleaning: 1. Release spring tension by backing off handwheel as far as it will go. 2. Remove lock nut or set screw and take off handwheel. Remove lock nut. Unscrew and remove gland 5. Unscrew and remove bonnet 6. Remove O-Ring 7. Remove adjusting screw (turn clockwise and pull out from bottom of bonnet ) 8. Remove O-ring packing 9. Remove spring. Remove piston K 11. Remove stop ring L (Not Recommended) (Special tooling is required to install new stop ring.) nspect valve bore and piston for wear or scoring. Replace broken or damaged parts. lean all parts thoroughly and re-assemble by reversing the above procedure. 12

13 V-SRS SSMLY NUMR NTTON RT Symbol No. esignation ode escription 1 Style None 2 Series V Material S SS onnections None 5 Size ,7,8 S lange Rating 9 lange Style # & 600# Only O-Ring Material None R RV RS RT R PR RN Standard Model andwheel Model ast iron rass Steel Stainless Steel (00 Series Stainless) Screw onnections lange onnections 00# lange lass Standard (250# lange lass - ast ron Standard) /8 1/ / 1 1 / 1 1 / 00# lange Standard (no designation required) Raised ace, Staggered olt enters Smooth ace, Staggered olt enters Raised ace, olts on Valve enterline Smooth ace, olts on Valve enterlne una (standard) Viton Silicone Teflon flas thylene Propylene Neoprene 11 Options SP P Steel Parts (used on cast iron only) Panel Mount on andwheel Series 12 Piston Material /S /SS /SS 1 Spring /S /US / / / / 1 XMPLS: V Series ast ron Setting V-5RVSP/S/ -5 RV SP /S Viton O-Ring Steel Parts.S. Piston / Spring V Series ast ron ardened Steel 16 Stainless Steel 0 Stainless Steel (or Stainless Valves Only) esired Set Pressure V-5R/S/ -5 R /S langed una O-Ring.S. Piston / Spring V Series ast ron V-5-R/S/ -5 - R /S langed Rating Style una O-Ring.S. Piston / Spring V- SRS VLVS Valve Pipe Size /8 1/ / 1 1 / 1 1 / Valve lange Size 1 1 / 1 1 / STNR PRSSUR RN RT SPRN PRSSUR N NTTON NO. LK-S R-US RN- YLLOW- WT- LU- PURPL-TS ROWN-RS Low igh Low igh Low igh Low igh Low igh Low igh Low igh Low igh /-1-5 PS ON LL SPRN RNS

14 V-SRS V ast ron VS Steel V rass VSS Stainless Steel V-SP ast ron with Steel Parts V- SRS VLVS MNSONS R. ULLO Valve Size /8 1/ / 1 1 / 1 1 / MNSONS N NS R 5 11 /2 6 / / /2 9 9 / /16 1 /8 1 / / / / / /2 2 9 /2 2 9 / / / / /8 1 7 / / / /2 2 7 /8 1 / OUT R N R PRTS LST SYM. NM MOL OY P (O-RN SL) USTN SRW RTNR O-RN LOK NUT SPRN STOP RN PSTON P (SKT SL) SKT * See o-ring selection chart ** See spring pressure chart Recommended spare parts V, V-SP V VS VSS V, V-SP V VS VSS V, V VS, V-SP VSS V, V VS, V-SP VSS V, V-SP, V, VS VSS V, V-SP, VS, V VSS LL MOLS V, V VS, V-SP VSS RN STL 16 STNLSS STL 0 STNLSS STL V, V-SP V VS V, V VS, V-SP VLV SZ /8 1/ / 1 1 / 1 1 / S 00-S 500-S 600-S 700-S 800-S 00-SS 00-SS 500-SS 600-SS 700-SS 800-SS S 0-SS 1-SR 1-R 1-SR 1-SSR 2-2-S 2-SS - -S -SS -* -RT 5-S 5-SS 7-** 8-8-S 8-SS SS 1-S 1-1-S -S 01-SR 01-R 01-SR 01-SSR S 02-SS 0-0-S 0-SS 0-* 0-RT 05-S 05-SS 07-** S 08-SS SS 01-S S 0 0-S 01-R 01-R 01-SR 01-SSR S 02-SS 0-0-S 0-SS 0-* 0-RT 05-S 05-SS 07-** S 08-SS SS S 0 0-S 501-R 501-R 501-SR 501-SSR S 502-SS S 50-SS 50-* 50-RT S 507-** S 508-SS SS S S 601-R 601-R 601-SR 601-SSR S 602-SS S 60-SS 60-* 60-RT 605-S 605-SS 607-** S 608-SS SS S S 701-R 701-R 701-SR 701-SSR S 702-SS S 70-SS 70-* 70-RT 705-S 705-SS 707-** S 708-SS SS S S 801-R 801-R 801-SR 801-SSR S 802-SS S 80-SS 80-* 80-RT 805-S 805-SS 807-** S 808-SS SS S S 1

15 V-SRS V ast ron V rass VS Steel VSS Stainless Steel V-SP ast ron with Steel Parts MNSONS MNSONS N NS Valve Size R / 1 1 / 9 1 / 1 / / /16 1 / / 1 /16 9 /16 Note: imensions reflect # and 00# only V- SRS VLVS OR VLV ONLY PRTS LST SYM. NM MOL OY P (O-RN SL) USTN SRW RTNR O-RN LOK NUT SPRN STOP RN PSTON P (SKT SL) SKT * See o-ring selection chart ** See spring pressure chart Recommended spare parts V, V-SP V VS VSS V, V-SP V VS VSS V, V VS, V-SP VSS V, V VS, V-SP VSS V, V-SP V, VS VSS V, V-SP VS, V VSS LL MOLS V, V V-SP, VS VSS RN STL 16 STNLSS STL 0 STNLSS STL V, V-SP V VS V, V V-SP, VS S 500-SS 501-R 501-R 501-SR 501-SSR S 502-SS S 50-SS 50* 50-* 50-RT S 507-** S 508-SS SS S S VLV SZ 1 1 / 1 1 / S 700-S 800-S 600-SS 700-SS 800-SS R 601-R 601-SR 601-SSR S 602-SS S 60-SS 60* 60-* 60-RT 605-S 605-S 605-SS 607-** S 608-SS SS S S 701-R 701-R 701-SR 701-SSR S 702-SS S 70-SS 70* 70-* 70-RT 705-S 705-S 705-SS 707-** S 708-SS SS S S 801-R 801-R 801-SR 801-SSR S 802-SS S 80-SS 80* 80-* 80-RT 805-S 805-S 805-SS 807-** S 808-SS SS S S

16 V-SRS V ast ron V RSS VS Steel VSS Stainless Steel V-P ast ron V-P rass VS-P Steel VSS-P Stainless Steel V- SRS VLVS MNSONS T.. M K K MXMUM R. MXMUM R. ULLO ULLO Valve Size /8 1/ / 1 1 / 1 1 / MNSONS N NS 8 1 /8 9 5 /8 9 / / / / /16 1 / / / /2 2 9 / /16 1 /8 1 7 / / / /2 2 7 /8 /8 1 /8 1 7 / / /2 2 9 / /16 7/8 1 1 /8 1 /8 1 /8 1 5 /8 2 1 / 2 1 / PNL MOUNT L L PP SZ PP SZ OUT R OUT R PRTS LST SYM. NM MOL K L M LOK NUT OR ST SRW NWL USTN SRW LOK NUT LN ONNT O-RN O-RN OY SPRN PSTON STOP RN LOK NUTS 2 RQ * See o-ring selection chart ** See spring pressure chart Recommended spare parts PP SZ PP SZ LL MOLS LL MOLS V(P), VS(P) V(P) VSS(P) V(P), VS(P) V(P) VSS(P) V(P), VS(P) V(P) VSS(P) V, VS V VSS V(P), VS(P) V(P) VSS(P) V(P), VS(P) V(P) VSS(P) only V(P), VS(P) V(P) VSS(P) only V(P) V(P) VS(P) VSS(P) LL MOLS RN STL 16 STNLSS STL 0 STNLSS STL V(P), VS(P) V(P) VSS(P) V(P), VS(P), V(P) VSS(P) VLV SZ /8 1/ / 1 1 / 1 1 / 1/ - 1/ - 5-S 5-S 1/ - 1/ - 1/ - OMM. OMM. OMM. OMM. OMM S SS 5-S 5-S 5-SS 225-S SS 22-SR 22-R 22-SSR 228-SR 228-R 228-SSR 22* 22-* 22-RT * -* -RT S 0-SS 7-** SS 8-S 8-8-SS S S SS 5-S 5-S 5-SS 25-S SS 2-SR 2-R 2-SSR 28-SR 28-R 28-SSR 22* 22-* 22-RT 0* 0-* 0-RT S 00-SS 07-** SS 08-S SS 605-S 605-S 605-SS 16 N R. N R S SS 05-S 05-S 05-SS 525-S SS 2-SR 2-R 2-SSR 28-SR 28-R 28-SSR 2* 2-* 2-RT 0* 0-* 0-RT S 00-SS 07-** SS 08-S SS 705-S 705-S 705-SS S SS 05-S 05-S 05-SS 525-S SS 52-SR 52-R 52-SSR 528-SR 528-R 528-SSR 2* 2-* 2-RT 50* 50-* 50-RT S 500-SS 507-** SS 508-S SS 705-S 705-S 705-SS S SS 655-S 655-S 655-SS 625-S SS 62-SR 62-R 62-SSR 628-SR 628-R 628-SSR 62* 62-* 62-RT 60* 60-* 60-RT S 600-SS 607-** SS 608-S SS 805-S 805-S 805-SS S SS 655-S 655-S 655-SS 725-S SS 72-SR 72-R 72-SSR 728-SR 728-R 728-SSR 62* 62-* 62-RT 70* 70-* 70-RT S 700-SS 707-** SS 708-S SS 75-S 75-S 75-SS S SS 655-S 655-S 655-SS 825-S SS 82-SR 82-R 82-SSR 828-SR 828-R 828-SSR 62* 62-* 62-RT 80* 80-* 80-RT S 800-SS 807-** SS 808-S SS 75-S 75-S 75-SS

17 V-SRS V ast ron V rass VS Steel VSS Stainless Steel V-P ast ron V-P rass VS-P Steel VSS-P Stainless Steel MNSONS PNL MOUNT T.. M K L MXMUM R. ULLO N OUT MNSONS N NS Valve Size 1 1 / 1 1 / 1 11 / / / /8 1 /2 / 1 /16 9 /16 1 /8 1 5 /8 2 1 / 2 1 / Note: imensions reflect # and 00# only V- SRS VLVS PRTS LST SYM. NM MOL K L M LOK NUT OR ST SRW NWL USTN SRW LOK NUT LN ONNT O-RN O-RN OY SPRN PSTON STOP RN LOK NUTS 2 RQ * See o-ring selection chart ** See spring pressure chart Recommended spare parts LL MOLS LL MOLS V(P) VS(P) V(P) VSS(P) V(P), VS(P) V(P) VSS(P) only V(P), VS(P) V(P) VSS(P) V, VS V VSS V(P) V(P), VS(P) VSS(P) V(P), VS(P) V(P) VSS(P) only V(P), VS(P) V(P) VSS(P) only V(P) V(P) VS(P) VSS(P) LL MOLS RN STL 16 STNLSS STL 0 STNLSS STL V(P), VS(P) V(P) VSS(P) V(P), VS(P), V(P) VSS(P) 5-S S SS 05-S 05-S 05-SS 525-S SS 52-SR 52-R 52-SSR 528-SR 528-R 528-SSR 2* 2-* 2-RT 50* 50-* 50-RT S 500-SS 507-** SS 508-S SS 705-S 705-S 705-SS MNSONS N NS 1 1 / 1 1 / 1/ - 1/ - 1/ - OMM. OMM. OMM S SS 655-S 655-S 655-SS 625-S SS 62-SR 62-R 62-SSR 628-SR 628-R 628-SSR 62* 62-* 62-RT 60* 60-* 60-RT S 600-SS 607-** SS 608-S SS 805-S 805-S 805-SS S SS 655-S 655-S 655-SS 725-S SS 72-SR 72-R 72-SSR 728-SR 728-R 728-SSR 62* 62-* 62-RT 70* 70-* 70-RT S 700-SS 707-** SS 708-S SS 75-S 75-S 75-SS OR VLV ONLY S SS 655-S 655-S 655-SS 825-S SS 82-SR 82-R 82-SSR 828-SR 828-R 828-SSR 62* 62-* 62-RT 80* 80-* 80-RT S 800-SS 807-** SS 808-S SS 75-S 75-S 75-SS 17

18 V-SRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) /8 VLV TSTS 1/ VLV TSTS V- SRS VLVS LLONS PR MNUT S Rated apacity 5.P.M. US PRSSUR RN N P.S.. 7-S = - 7-US = = = = = TS = RS = TS RS LLONS PR MNUT 5 2 S US Rated apacity 11.P.M. PRSSUR RN N P.S.. 07-S = - 07-US = = = = = TS = RS = TS RS OVRPRSSUR N P.S OVRPRSSUR N P.S.. / VLV TSTS VLV TSTS LLONS PR MNUT S US Rated apacity 16.P.M. PRSSUR RN N P.S.. 07-S = - 07-US = = = = = LLONS PR MNUT S US Rated apacity 25.P.M. PRSSUR RN N P.S S = US = = = = = R = R OVRPRSSUR N P.S OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 18

19 V-SRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 1 1 / VLV TSTS 1 1 / VLV TSTS LLONS PR MNUT US S PRSSUR RN N P.S S = US = = = = = R = Rated apacity 50.P.M. R LLONS PR MNUT S PRSSUR RN N P.S S = US = = = = = R = Rated apacity 80.P.M. US R V- SRS VLVS OVRPRSSUR N P.S OVRPRSSUR N P.S.. VLV TSTS PRSSUR RN N P.S S = US = = = = = Rated apacity.p.m. LLONS PR MNUT S US OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 19

20 V-SRS VLV nstallation, Maintenance & Operating nstructions V- SRS VLVS The ulflo V-Series valve is similar to the V-Series valve, includes a new safer design that protects liquid and gasses from venting out of the valve during normal operation and adjustment conditions. This valve has been especially designed to prevent the adjusting screw from backing out while making adjustments to the pressure setting. n o-ring has been incorporated around the adjusting screw to further prevent liquid from escaping. PPLTON The ulflo V Series range in size from /8 through and operate efficiently with liquids of any viscosity at pressures from 2 to 00 P.S.. The V series valves are available in flange or screw type... in a choice of brass, cast iron, steel and stainless steel. Widely used in a variety of applications, the V series valves are ideally suited in hydraulic and lubricating systems for load regulation and system protection. Special trim or packings are available for use with fire resisting fluids and other liquids of this type. Unusual applications and special requirements should be referred to our engineering staff for recommendation. NSTLLTON ulflo valves can be mounted in any position. tee may be inserted in the pump discharge line to mount the valve. The correct size of valve should be installed, preferably matching the pump discharge line. Screw the valve into the nipple in the tee, or in the case of the flange style, bolt the valve to the companion flange screwed into the nipple. When the valve is used for frequent bypassing of oil pressure, its outlet should be piped back to the tank. are must be taken to have the discharge well below the oil level in the tank to prevent air entrainment and erratic operation. Only if the valve is used as safety or overload relief and operates infrequently may its discharge be piped back into the pump suction line. requent or continuous operation under these conditions will cause excessive heating of the oil and possible damage.

21 V-SRS STTN VLVS Valves may be set with a hydraulic hand pump for cracking pressure. f a test stand is available, valve should be connected to the discharge header with the pump bypass open, and the bypass gradually closed until the desired pressure registers on the gauge. djust valve adjusting screw until valve slightly bleeds at the set bypass pressure and lock adjusting screw. ulflo valves are not designed to be positive shut-off, and will pass a minimal amount of leakage before the set pressure. f a valve is required to bypass a given amount of fluid at a given pressure, a test stand having a flow meter in the pump discharge line must be available. With a valve adjusted for cracking pressure as above, continue closing bypass until the required flow registers on the flow meter and observe pressure. Readjust pressure, if necessary, to obtain desired pressure at desired flow. MNTNN ulflo valves provide reliable chatter-free operation when the system is free of abrasives and foreign matter. ontinuous filtration of the liquid used is strongly recommended. TYPL SSSMLY O STNR TYP VLV To dismantle valve for inspection cleaning: 1. Remove cap 2. Remove O-Ring. Remove lock nut. Remove bonnet 5. Remove adjusting screw 6. Remove spring 7. Remove piston 8. Remove stop ring (Not Recommended) (Special tooling is required to install new stop ring.) nspect valve bore and piston for wear and scoring. Replace broken or damaged parts. lean all parts thoroughly and re-assemble by reversing the above procedure. V- SRS VLVS No Leaking, ripping, Spills or Venting The ulflo V-Series valve includes a new safer design that prevents liquid and gasses from venting out of the valve during normal operation and adjustment conditions. This valve has been especially designed to prevent the adjusting screw from backing out while making adjustments to the pressure setting. n o-ring has been incorporated around the adjusting screw to further prevent liquid from escaping. Operates fficiently and ffectively The V-Series valves can be mounted in any position with sizes ranging from /8 through, and will operate efficiently with any application or viscosity at pressures from 2 to 00 psi. lange or screw connections are available in brass, cast iron, steel or stainless steel. ll parts are completely interchangeable and convertible with other ulflo V- Series valves. ulflo Valve dvantages These valves offer ulflo s patented chatter-free performance and are ideally suited for hydraulic and lubricating system protection. ll ulflo valves include a patented modulating piston design with absolute or differential pressure operation. Our advanced modulating operation allows ulflo valves to be used in many different applications including positive displacement or centrifugal pump and system protection. ulflo valves can be mounted in any position. 21

22 V-SRS V- SRS VLVS SSMLY NUMR NTTON RT Symbol No. esignation ode escription 1 Series V 2 Material S SS onnections None Size ,6,7 S lange Rating 8 lange Style # & 600# only 9 O-Ring Material Piston Material None R RV RS R PR RN /S /SS /SS 11 Spring /S /US / / / / 12 Setting ast iron rass Steel Stainless Steel (00 Series Stainless) Screw onnections lange onnections 00# lange lass Standard (250# lange lass - ast ron Standard) /8 1/ / 1 1 / 1 1 / 00# lange Standard (no designation required) Raised ace, Staggered olt enters Smooth ace, Staggered olt enters Raised ace, olts on Valve enterline Smooth ace, olts on Valve enterlne una (Standard) Viton Silicone flas thylene Propylene Neoprene (Note: No Teflon O-Rings may be used) ardened Steel 16 Stainless Steel 0 Stainless Steel (or Stainless Valves Only) esired Set Pressure XMPLS: V Series ast ron V-5RV/S/ RV /S -5 Viton O-Ring.S. Piston / Spring V Series ast ron V-5R/S/ -5 R /S langed una O-Ring.S. Piston / Spring V Series ast ron V-5-R/S/ -5 - R /S langed Rating Style una O-Ring.S. Piston / Spring Valve Pipe Size /8 1/ / 1 1 / 1 1 / Valve lange Size 1 1 / 1 1 / STNR PRSSUR RN RT SPRN PRSSUR N NTTON NO. LK-S R-US RN- YLLOW- WT- LU- PURPL-TS ROWN-RS Low igh Low igh Low igh Low igh Low igh Low igh Low igh Low igh

23 V-SRS V ast ron V rass VS Steel VSS Stainless Steel MNSONS PRTS LST SYM. NM MOL OY P PP SZ USTN SRW O-RN (2 RQUR) LOK NUT PSTON SPRN STOP RN ONNT O-RN (1 RQUR) PP SZ R V V VS VSS V V VS VSS V V VS VSS V V VS VSS V V VS VSS RN STL 16 STNLSS STL 0 STNLSS STL LL MOLS V V VS VSS V V VS VSS V V VS VSS ULLO N R S 0-SS 1-SR 1-R 1-SR 1-SSR 2-S S8 2-SS8 -* -* -* -* 5-S 5-S 5-S 5-SS SS 7-** 8-S 8-8-S 8-SS 22-S S 22-SS 7058-* 7058-* 7058-* 7058-* OUT Valve Size /8 1/ / 1 1 / 1 1 / MNSONS N NS 5 1 /2 7 /2 7 5 / /2 1 / /2 1 / 1 / / / /2 2 9 / /16 1 /8 1 7 / / /2 2 9 / /16 VLV SZ /8 1/ / 1 1 / 1 1 / S 00-S 500-S 600-S 700-S 800-S 00-SS 00-SS 500-SS 600-SS 700-SS 800-SS 01-SR 01-R 01-SR 01-SSR 02-S S8 02-SS8 0-* 0-* 0-* 0-* 05-S 05-S 05-S 05-SS SS 07-** 08-S S 08-SS 2-S 2-2-S 2-SS 7006-* 7006* 7006-* 7006-* R. 01-R 01-R 01-SR 01-SSR 02-S S8 02-SS8 0-* 0-* 0-* 0-* 05-S 05-S 05-S 05-SS SS 07-** 08-S S 08-SS 2-S 2-2-S 2-SS 7025-* 7025-* 7025-* 7025-* 501-R 501-R 501-SR 501-SSR 502-S S8 502-SS8 50-* 50-* 50-* 50-* S SS 507-** 508-S S 508-SS 52-S S 52-SS 700-* 700-* 700-* 700-* 601-R 601-R 601-SR 601-SSR 602-S S8 602-SS8 60-* 60-* 60-* 60-* S SS 607-** 608-S S 608-SS 62-S S 62-SS 7061-* 7061-* 7061-* 7061-* 701-R 701-R 701-SR 701-SSR 702-S S8 702-SS8 70-* 70-* 70-* 70-* S SS 707-** 708-S S 708-SS 72-S S 72-SS 7062-* 7062-* 7062-* 7062-* 801-R 801-R 801-SR 801-SSR 802-S S8 802-SS8 80-* 80-* 80-* 80-* S SS 807-** 808-S S 808-SS 82-S S 82-SS 50-* 50-* 50-* 50-* R 1 /8 1 7 / / / /2 2 7 /8 1 / V- SRS VLVS * See o-ring selection chart ** See spring pressure chart Recommended spare parts 2

24 V-SRS V ast ron V rass VS Steel VSS Stainless Steel MNSONS MNSONS N NS R R ULLO Valve Size 1 1 / 1 1 / 5 / / / /16 1 / / 1 /16 9 /16 Note: imensions reflect # and 00# only V- SRS VLVS PRTS LST SYM. NM MOL OY P USTN SRW O-RN (2 RQUR) LOK NUT PSTON SPRN STOP RN ONNT O-RN (1 RQUR) * See o-ring selection chart ** See spring pressure chart Recommended spare parts V V VS VSS V V VS VSS V V VS VSS V V VS VSS V V VS VSS RN STL 16 STNLSS STL 0 STNLSS STL LL MOLS V V VS VSS V V VS VSS V V VS VSS S 500-SS 501-R 501-R 501-SR 501-SSR 502-S S8 502-SS8 50-* 50-* 50-* 50-* S SS 507-** 508-S S 508-SS 52-S S 52-SS 700-* 700-* 700-* 700-* VLV SZ 1 1 / 1 1 / S 700-S 800-S 600-SS 700-SS 800-SS 601-R 601-R 601-SR 601-SSR 602-S S8 602-SS8 60-* 60-* 60-* 60-* S SS 607-** 608-S S 608-SS 62-S S 62-SS 7061-* 7061-* 7061-* 7061-* 701-R 701-R 701-SR 701-SSR 702-S S8 702-SS8 70-* 70-* 70-* 70-* S SS 707-** 708-S S 708-SS 72-S S 72-SS 7062-* 7062-* 7062-* 7062-* OR VLV ONLY 801-R 801-R 801-SR 801-SSR 802-S S8 802-SS8 80-* 80-* 80-* 80-* S SS 807-** 808-S S 808-SS 82-S S 82-SS 50-* 50-* 50-* 50-* 2

25 V-SRS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) /8 VLV TSTS 1/ VLV TSTS LLONS PR MNUT Rated apacity 5.P.M. S US PRSSUR RN N P.S.. 7-S = - 7-US = = = = = TS = RS = TS RS LLONS PR MNUT 5 2 S US Rated apacity PRSSUR RN N P.S.. 07-S = - 07-US = = = = = TS = RS = TS RS V- SRS VLVS OVRPRSSUR N P.S OVRPRSSUR N P.S.. / VLV TSTS VLV TSTS LLONS PR MNUT S US Rated apacity 16.P.M. PRSSUR RN N P.S.. 07-S = - 07-US = = = = = LLONS PR MNUT S US Rated apacity 25.P.M. PRSSUR RN N P.S S = US = = = = = R = R OVRPRSSUR N P.S OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 25

26 V-SRS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 1 1 / VLV TSTS 1 1 / VLV TSTS V- SRS VLVS LLONS PR MNUT US S PRSSUR RN N P.S S = US = = = = = R = Rated apacity 50.P.M. R LLONS PR MNUT S PRSSUR RN N P.S S = US = = = = = Rated apacity 80.P.M. US OVRPRSSUR N P.S OVRPRSSUR N P.S.. VLV TSTS PRSSUR RN N P.S S = US = = = = = Rated apacity.p.m. LLONS PR MNUT S US OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 26

27 OV-SRS VLVS nstallation, Maintenance & Operating nstructions PPLTON Standard with Screw onnections Standard with lange onnections Stainless Steel with Screw onnections Note: OV-Series Valves offered in ast ron, rass, Steel and Stainless Steel The OV-Series valve is a "Relief Valve" (RV) in a sense that the outlet pressure doesn't affect the valve s set pressure. The valves operate off the inlet pressures only. The OV-Series valve is to be used when you don't want the backpressure to affect the valves opening pressure. The valve sizes from 1/2" to 2" operate efficiently with liquids of any viscosity at pressures from to 500 P.S.. vailable in screwed connection and flange, in a choice of brass, cast iron, steel or stainless steel. Widely used in a variety of applications, the OV-Series valves are ideally suited for all hydraulic and lubricating systems for pressure regulation and system protection. Special requirements should be referred to our engineering staff for recommendations. OV- SRS VLVS NSTLLTON ulflo valves can be mounted in any position. tee may be inserted in the pump discharge line to mount the valve. The correct size of valve should be installed, preferably matching the pump discharge line. Screw the valve into the nipple in the tee, or in the case of the flange style, bolt the valve to the companion flange screwed into the nipple. When the valve is used for frequent bypassing of oil pressure, its outlet should be piped back to the tank. are must be taken to have the discharge well below the oil level in the tank to prevent air entrainment and erratic operation. Only if the valve is used as safety or overload relief and operates infrequently may its discharge be piped back into the pump suction line. requent or continuous operation under these conditions will cause excessive heating of the oil and possible damage. 27

28 OV-SRS STTN VLVS Valves may be set with a hydraulic hand pump for cracking pressure. f a test stand is available, valve should be connected to the discharge header with the pump bypass open, and the bypass gradually closed until the desired pressure registers on the gauge. djust valve adjusting screw until valve slightly bleeds at the set bypass pressure and lock adjusting screw. ulflo valves are not designed to be positive shut-off, and will pass a minimal amount of leakage before the set pressure. f a valve is required to bypass a given amount of fluid at a given pressure, a test stand having a flow meter in the pump discharge line must be available. With a valve adjusted for cracking pressure as above, continue closing bypass until the required flow registers on the flow meter and observe pressure. Readjust pressure, if necessary, to obtain desired pressure at desired flow. MNTNN ulflo valves provide reliable chatter-free operation when the system is free of abrasives and foreign matter. ontinuous filtration of the liquid used is strongly recommended. TYPL SSSMLY OV- SRS VLVS To dismantle valve for inspection or cleaning: 1. Remove cap 2. Remove lock nut. Remove adjusting screw. Remove retainer 5. Remove spring 6. Remove piston 7. Remove stop ring (Not Recommended) (Special tooling is required to install new stop ring.) nspect valve bore and piston for wear and scoring. Replace broken or damaged parts. lean all parts thoroughly and re-assemble by reversing the above procedure. TYPL PPLTONS ULLO VLV TO STM ULLO VLV TO STM TO STM SUTON PUMP SUTON LOS TNK PUMP PUMP ULLO VLV PPLTON 1 PPLTON 2 PPLTON 28

29 OV-SRS SSMLY NUMR NTTON RT Symbol No. esignation ode escription 1 Style None Standard Model 2 Series OV Material S SS onnections None ast iron rass Steel Stainless Steel (00 Series Stainless) Screw onnections lange onnections 00# lange lass Standard (250# lange lass - ast ron Standard) 5 Size ,7,8 S lange Rating 9 lange Style # & 600# Only O-Ring Material None R RV RS R PR RN 1/ / 1 1 / 1 1 / 00# lange Standard (no designation required) Raised ace, Staggered olt enters Smooth ace, Staggered olt enters Raised ace, olts on Valve enterline Smooth ace, olts on Valve enterline una (standard) Viton Silicone flas thylene Propylene Neoprene 11 Options SP Steel Parts (used on cast iron valves only) 12 Piston Material /S /SS /SS 1 Spring / / / / 1 Setting ardened Steel 16 Stainless Steel 0 Stainless Steel (or Stainless Valves Only) esired Set Pressure (Note: No Teflon O-Rings may be used) OV- SRS VLVS XMPLS: OV Series ast ron OV-5RVSP/S/ -5 RV SP /S / Viton O-Ring Steel Parts.S. Piston Spring OV Series ast ron OV-5R/S/ -5 R /S langed una O-Ring.S. Piston / Spring OV Series ast ron OV-5-R/S/ -5 - R /S langed Rating Style una O-Ring.S. Piston / Spring STNR PRSSUR RN RT Valve Pipe Size 1/ / 1 1 / 1 1 / Valve lange Size 1 1 / 1 1 / SPRN PRSSUR N NTTON NO. RN- YLLOW- WT- LU- Low igh Low igh Low igh Low igh /-1-5 PS ON LL SPRN RNS 29

30 0V-SRS OV ast ron OVS Steel OV rass 0VSS Stainless Steel 0V-SP ast ron with Steel Parts MNSONS Valve Size MNSONS N NS R /8 1/ / 5 11 /2 6 / / /2 1 / / / /2 1 /8 1 7 / / /2 1 /8 1 7 / / /16 VNT OL R. ULLO 1 1 / 1 1 / 9 9 / / / / / / /2 2 7 /8 1 / OUT R N OV- SRS VLVS PRTS LST SYM. NM MOL OY P USTN SRW RTNR PSTON O-RN LOK NUT SPRN STOP RN PSTON * See o-ring selection chart ** See spring pressure chart Recommended spare parts OV, OV-SP OV OVS OVSS OV, OV-SP OV OVS OVSS OV, OV OVS, OV-SP OVSS OV, OV OVS, OV-SP OVSS OV, OV-SP, OV, OVS OVSS OV, OV-SP, OVS, OV OVSS LL MOLS OV, OV OVS, OV-SP OVSS RN STL 16 STNLSS STL 0 STNLSS STL R VLV SZ 1/ / 1 1 / 1 1 / S 00-S S9 600-S S27 00-SS 00-SS SS9 600-SS SS27 01-S S 01-SS S 02-SS 0-0-S 0-SS 22-* 05-S 05-SS 7-** S 08-SS SS S 01-SS S 02-SS 0-0-S 0-SS 2-* 05-S 05-SS 07-** S 08-SS SS S 501-SS S 502-SS S 50-SS -* S 07-** S 508-SS SS S 601-SS S 602-SS S 60-SS 707-* 605-S 605-SS 507-** S 608-SS SS S 701-SS S 702-SS S 70-SS 7069-* 705-S 705-SS 607-** S 708-SS SS S0 800-SS S 801-SS S 802-SS S 80-SS 7069-* 805-S 805-SS 707-** S 808-SS SS2 0

31 OV-SRS OV ast ron OV rass OVS Steel OVSS Stainless Steel OV-SP ast ron with Steel Parts MNSONS MNSONS N NS K VNT OL VNT OL R Valve Size 1 1 / 1 1 / 9 1 / 1 / / /16 1 / / 1 /16 9 /16 Note: imensions reflect # and 00# only OR VLV ONLY PRTS LST SYM. NM MOL OY P USTN SRW RTNR PSTON O-RN LOK NUT SPRN STOP RN PSTON * See o-ring selection chart ** See spring pressure chart Recommended spare parts OV, OV-SP OV OVS OVSS OV, OV-SP OV OVS OVSS OV, OV OVS, OV-SP OVSS OV, OV OVS, OV-SP OVSS OV, OV-SP OV, OVS OVSS OV, OV-SP OVS, OV OVSS LL MOLS OV, OV OV-SP, OVS OVSS RN STL 16 STNLSS STL 0 STNLSS STL S9 500-SS S 501-SS S 502-SS S 50-SS -* S 07-** VLV SZ 1 1 / 1 1 / S S S0 600-SS SS SS S 508-SS SS S 601-SS S 602-SS S 60-SS 707-* 605-S 605-S 605-SS 507-** S 608-SS SS S 701-SS S 702-SS S 70-SS 7069-* 705-S 705-S 705-SS 607-** S 708-SS SS S 801-SS S 802-SS S 80-SS 7069-* 805-S 805-S 805-SS 707-** S 808-SS SS2 OV- SRS VLVS 1

32 OV-SRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 1/ VLV TSTS / VLV TSTS LLONS PR MNUT 5 Rated apacity 11.P.M. PRSSUR RN N P.S.. 7- = = = = LLONS PR MNUT Rated apacity 16.P.M. PRSSUR RN N P.S = = = = OV- SRS VLVS OVRPRSSUR N P.S.. VLV TSTS OVRPRSSUR N P.S.. LLONS PR MNUT Rated apacity 25.P.M. PRSSUR RN N P.S = = = = OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 2

33 OV-SRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 1 1 / VLV TSTS 1 1 / VLV TSTS LLONS PR MNUT PRSSUR RN N P.S = = = = Rated apacity 50.P.M. LLONS PR MNUT PRSSUR RN N P.S = = = = Rated apacity 80.P.M OVRPRSSUR N P.S.. VLV TSTS OVRPRSSUR N P.S.. OV- SRS VLVS PRSSUR RN N P.S = = = = Rated apacity.p.m. LLONS PR MNUT OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow.

34 -SRS VLVS nstallation, Maintenance & Operating nstructions - SRS VLVS PPLTON The ulflo -Series feature both direct acting and internal pilot operated models with either screw or flange type connections. The threaded valves are available in both 2 1 / and sizes in either cast iron or steel. The flange type valves also include a model and may be specified with #, 00# or 600# NS flanges. Note that 600# is available in Steel and SS only. The direct acting valves operate at pressures to P.S..; the internal pilot operated models at pressures to 500 P.S.. oth types handle large flows of liquid of all viscosities encountered in industrial practice. The -Series valves may be used in a variety of applications including hydraulic and lubrication systems for load regulation and system protection. Unusual applications and special valves should be referred to our engineering staff for recommendation. NSTLLTON ulflo valves can be mounted in any position. tee may be inserted in the pump discharge line to mount the valve. The pipe lines carrying the heavy valves must be well supported and overhung weights avoided. The correct size of valve must be used, preferably equal to the size of the pipe line to which they are connected. Threaded valves ( and ) may be threaded into pipe nipples. Overhung weights on threads should be avoided. langed valves ( and ) are bolted to the companion flange which may be threaded or welded to the pipe. The outlet of the valve should be piped to the supply tank, unless specific applications call for alternate piping of return lines. are must be taken to have the discharge well below the oil level in the tank to prevent air entrainment and erratic operation.

35 -SRS STTN VLVS Valve may be set with a hydraulic hand pump for cracking pressure. f a test stand is available, valve should be connected to the discharge header with the pump bypass open, and the bypass gradually closed until the desired pressure registers on the gauge. irect djust valve adjusting screw until valve slightly bleeds at the set bypass pressure and lock adjusting screw. Pilot djust valve adjusting screw until approximately 5-7 PM is flowing through the valve, at that point the main piston will open and then the valve will be considered at the set point, then lock adjusting screw. f a valve is required to bypass a given amount of fluid at a given pressure, a test stand having a flow meter in the pump discharge line must be available. With a valve adjusting for cracking pressure as above, continue closing bypass until the required flow registers on the flow meter and observe pressure. Readjust pressure, if necessary, to obtain desired pressure at desired flow. MNTNN ulflo valves provide reliable chatter-free operation when the system is free of abrasives and foreign matter. ontinuous filtration of the liquid used is strongly recommended. SSSMLY O RT TN VLVS M - SRS VLVS N K L To dismantle the valve for inspection or cleaning: 1. Remove cap and O-ring 2. Remove lock nut. Remove adjusting screw. Remove cap screws 5. Remove bonnet 6. Remove gasket 7. Remove spring retainer 8. Remove spring or springs and 9. Remove piston M. Unscrew and withdraw cylinder K 11. Remove retaining bushing N if necessary nspect cylinder bore and piston for wear or scoring. Replace broken or damaged parts. lean all parts thoroughly and re-assemble as follows: Reverse process of disassembly from operation 11 to 6, then thread adjusting screw into bonnet so that it may be guided into the recess of spring retainer, while re-assembling bonnet to body L. Then proceed with steps 5,, 2, 1, in reverse order. 5

36 -SRS SSMLY NUMR NTTON RT Symbol No. 1 2 & 5 6 7,8,9 11 esignation Series Material Type Size onnection S lange Rating lange Style Only O-Ring Material 12 Piston Material ode SS P None # 00# 600# R RV RS RT R PR RN /S /SS /SS 1 Spring SPRN PRT NUMR 1 Setting escription ast ron ast Steel Stainless Steel irect cting nternal Pilot Operated 2 1 / Screw Type (2 1 / and only) lange Raised ace, Staggered olt enters Smooth ace, Staggered olt enters Raised ace, olts on Valve enterline Smooth ace, olts on Valve enterline una O-Ring ap Seal (Standard) Viton O-Ring ap Seal Silicone O-Ring ap Seal Teflon O-Ring ap Seal flas O-Ring ap Seal thylene Propylene Neoprene ardened Steel 16 Stainless Steel 0 Stainless Steel (or Stainless Valves Only) See elow esired Set Pressure - SRS VLVS XMPL: Series Steel P09R P Pilot Operated / SRS VLVS (irect cting) PRSSUR RN RT Valve Size 2 1 / Symbol & & Spring Part No. Pressure Range and and R una NOT: Special valves are prefixed by numbers assigned by the factory P.S P.S P.S P.S P.S P.S.. NOT: Springs suffixed with are hrome Vanadium, indicates Stainless Steel. or pressures other than listed, consult factory. XMPL: Specify: 1. Valve Model Number ( 1- ) 2. O-Ring dentification Number ( 11 ). Piston Material ( 12 ). Spring Part Number ( 1 ) 5. Spring pressure range or desired pressure setting. ( 1 ) Valve Size 2 1 / & & & (ontinued) 60 and and 1170 SRS VLVS (Pilot Operated) Symbol O & O & O & -0 P.S P.S P.S P.S.. Spring Part No. Pressure Range 0980 and and and P.S P.S P.S.. 6

37 -SRS 2 1 / and (irect cting) MNSONS K L M N PP SZ PP SZ R. R. Valve Size 2 1 / MNSONS N NS 15 9 / /2 5 1 /2 6 5 /8 5 1 /16 6 /8 PRTS LST R. SYMOL NM MOL 2 1 / VLV SZ ap djusting Screw Lock Nut O-Ring ap Screw onnet asket Spring Retainer Spring, SS, SS, SS, SS, SS SS, SS, SS,, SS 11R 11SSR SS 605-S 605-SS 60-* 60-* /8 x 1 SS SS RT SS See hart 1R 1SSR 22 22SS 705-S 705-SS 70-* 70-* /8 x 1 SS SS 0 0RT 16 16SS See hart - SRS VLVS Spring,, SS See hart See hart K L ylinder ody, SS SS SS SS 08 08SS SS M Piston ardened Steel 16 Stainless Steel 0 Stainless Steel,,, SS (only) SS SS N Retaining ushing, SS SS 11 11SS *See o-ring selection chart Recommended spare parts 7

38 -SRS 2 1 /, and (irect cting) MNSONS MNSONS N NS K L M PP SZ R Valve Size 2 1 /2 2 1 /2 lange Rating # 00# 600# # 00# 600# # 00# 600# 15 1 /16 16 / / /2 /16 5 / 6 1 /8 6 1 / 6 5 / / /8 Note! Refer to Page for lange and rilling imensions. N PP SZ PRTS LST SYMOL NM MOL 2 1 / VLV SZ ap djusting Screw Lock Nut O-Ring ap Screw,, SS,, SS,, SS,, SS,, SS 11R 1R 111R 11SSR 1SSR 111SSR SS 22SS 1122SS 605-S 705-S 805-S 605-SS 705-SS 805-SS 60-* 70-* 80-* 60-* 70-* 80-* /8 x 1 SS /8 x 1 SS /8 x 1 SS - SRS VLVS onnet asket Spring Retainer SS,, SS,, SS SS SS SS RT 0 0RT 1 1RT SS 16SS 1116SS Spring,, SS See hart See hart See hart K L Spring ylinder ody,, SS,, SS SS See hart See hart See hart SS 08SS 18SS SS SS SS M Piston ardened Steel 16-Stainless Steel 0-Stainless Steel SS (Only) SS 06SS 16SS N Retaining ushing,, SS SS 11SS 1111SS *See o-ring selection chart Recommended spare parts 8

39 -SRS PRORMN RTS (irect cting) ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 2 1 / VLV TSTS LLONS PR MNUT Rated apacity 225.P.M. Spring Part No Pressure Range 7 to 57 P.S.. Spring Part No Pressure Range 8 to 75 P.S.. Spring Part Nos and 0971 Pressure Range 16 to P.S.. Spring Part Nos and Pressure Range 1 to 115 P.S.. Tests apply only to irect Operating Valves or 09 Valves OVRPRSSUR N P.S.. VLV TSTS LLONS PR MNUT Rated apacity 50.P. M. Spring Part No. 60 Pressure Range 5 to 50 P.S.. Spring Part No. 61 Pressure Range 5 to 67 P.S.. Spring Part No. 60 and 70 Pressure Range to 0 P.S.. Spring Part Nos. 61 and 71 Pressure Range to 15 P.S.. Tests apply only to irect Operating Valves or Valves OVRPRSSUR N P.S.. - SRS VLVS VLV TSTS LLONS PR MNUT Rated apacity 600.P. M. Spring Part No Pressure Range 2 to 7 P.S.. Spring Part Nos and 1170 Pressure Range to 75 P.S.. 0 Tests apply only to irect Operating Valves or 1 Valves OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 9

40 -SRS (nternal Pilot Operated) P O L K N S M - SRS VLVS R SSSMLY O NTRNL PLOT OPRT VLVS To dismantle the valve for inspection or cleaning: 1. Remove cap and gasket 2. Remove nut. Remove adjusting screw. Remove cap screws 5. Remove bonnet 6. Remove gasket 7. Remove pilot spring 8. Unscrew and withdraw cylinder M (do not unscrew cylinder retainer L ) 9. Unscrew and remove cylinder retainer L, after removing cylinder M. aution: hold in vise. alance spring O under heavy compression.. Unscrew and remove piston retainer K 11. Remove retaining ring 12. Remove pilot piston N 1. Remove balance spring O 1. Remove piston P 15. Remove retaining bushing S if necessary nspect bores of both piston retainer K and cylinder M. nspect pistons N and P for wear or scoring. Replace broken or damaged parts. lean all parts thoroughly and re-assemble as follows: Reverse process of disassembly from operation 16 to 6, then thread adjusting screw into bonnet, while re-assembling to body R. Then proceed with steps 5,, 2, 1 in reverse order. 0

41 -SRS 2 1 / and (nternal Pilot Operated) MNSONS K L M N O P R PP SZ R R. Valve Size 2 1 / MNSONS N NS 15 5 / /2 5 1 /2 6 5 /8 5 1 /16 6 /8 7 /8 PRTS LST Symbol K L M N O P R ap NM djusting Screw Lock Nut MOL O-Ring ap Screw onnet ast ron Steel Stainless Steel,, SS,, SS SS 60-* /8 x 1 SS SS 60-* /8 x 1 SS SS asket Retainer Ring Pilot Spring Piston Retainer ylinder Retainer ylinder Pilot Piston ardened Steel 16 Stainless-Steel 0 Stainless-Steel alance Spring Piston ardened Steel 16 Stainless-Steel 0 Stainless-Steel ody PP SZ Retaining ushing, SS, SS, SS, SS, SS,, SS, SS, SS, SS,, SS (Only),, SS R 2 1 / 11R 11SSR 12 12SS S RT 11 11SS SS SS SS SS 0980 VLV SZ SS 80, 096 6, SS (Only) 096SS 6SS SS SS SS, SS 0911SS 11SS 11R 11SSR 12 12SS S 0 0RT 11 11SS SS 12 12SS 28 28SS - SRS VLVS * See o-ring selection chart Recommended spare parts 1

42 - SRS VLVS -SRS 2 1 /, and (nternal Pilot Operated) MNSONS K L M N O P R PRTS LST Symbol K L M N O P R ap NM djusting Screw Lock Nut O-Ring MOL Valve Size 2 1 /2 2 1 /2 MNSONS N NS lange Rating # 00# 600# # 00# 600# # 00# 600# ap Screw onnet ast ron Steel Stainless Steel SS /8 x 1 SS SS /8 x 1 SS SS /8 x 1 SS SS asket Retainer Ring Pilot Spring PP SZ Piston Retainer ylinder Retainer PP SZ, SS, SS, SS,, SS, SS, SS,, SS, SS, SS R. ylinder, SS 0928SS 28SS Pilot Piston ardened Steel, Stainless-Steel, Stainless-Steel SS (Only) 1115SS 1115SS alance Spring Piston,, SS ardened Steel, Stainless-Steel, Stainless-Steel SS (Only) 096SS 6SS ody SS 0900SS 0SS Retaining ushing, SS 0911SS 11SS / 11R 11SSR 12 12SS S RT 11 11SS SS SS 22.5 VLV SZ 15 7 / / 16 1 / /2 18 /16 18 /8 11R 11SSR 12 12SS S 60-* 60-* 60-* 0 0RT 11 11SS SS 12 12SS 11R 11SSR 12 12SS S 1 1RT 11 11SS SS SS SS SS SS SS SS 5 / 6 1 /8 6 1 / 6 5 / / /8 * See o-ring selection chart Recommended spare parts 2

43 -SRS PRORMN RTS (nternal Pilot Operated) ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 2 1 / VLV TSTS Rated apacity 225.P.M. LLONS PR MNUT Spring Part Nos and 1190 Pressure Range 50 to 500 P.S.. Tests apply only to Pilot Operated Valves or P09 Valves OVRPRSSUR N P.S.. VLV TSTS Rated apacity 50.P.M. LLONS PR MNUT Spring Part Nos. 80 and 1190 Pressure Ranges 50 to 500 P.S OVRPRSSUR N P.S.. VLV TSTS Tests apply only to Pilot Operated Valves or P Valves. - SRS VLVS LLONS PR MNUT Rated apacity 600.P.M. Spring Part Nos and 1190 Pressure Ranges 50 to 500 P.S.. Tests apply only to Pilot Operated Valves or P1 Valves OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow.

44 SV-SRS VLVS (UL 82 pproved) *Underwriter Listed *NS, UL-82 pproved Valves for lammable luids PPLTON The ulflo SV - Series, Underwriter Listed, range in size from /8 through and operate efficiently with liquids of any viscosity at pressures from through 500 P.S.. The SV valves are of brass construction with threaded connections. Primarily designed for use with fuel oils on oil burner service, the SV valves may be used wherever Underwriter Listed valves are required. ach valve is pre-set to the specified pressure and is equipped with a limiting device to prevent over-adjustment. SV-SRS VLVS NSTLLTON ulflo valves can be mounted in any position. tee may be inserted in the pump discharge line to mount the valve. The correct size of valve should be installed, preferably matching the pump discharge line. Screw the valve into the nipple in the tee. When the valve is used for frequent bypassing of oil under pressure, its outlet should be piped back to the tank. are must be taken to have the discharge well below the oil level in the tank to prevent air entrainment and erratic operations. Only if the valve is used as safety or overload relief and operates infrequently may its discharge be piped back into the pump suction line. requent or continuous operation under these conditions will cause excessive heating of the oil and possible damage.

45 SV-SRS MNTNN ulflo valves provided reliable chatter-free operation when the system is free of abrasives and foreign matter. ontinuous filtration of the liquid used is strongly recommended. TYPL SSSMLY O SV VLVS To dismantle valve for inspection and cleaning: 1. Remove cap 2. Remove gasket (replace, if necessary). Loosen lock nut. Remove adjusting screw (Limit collar is soldered to adjusting screw, to limit the maximum pressure to which the valve may be subjected.) Limit collar is set at 25% above normal pressure setting. 5. Remove lock nut 6. Remove retainer 7. Remove spring 8. Remove piston 9. Remove stop ring (Not Recommended) (Special tooling is required to install new stop ring.) nspect valve bore and piston for wear or scoring. Replace broken or damaged parts. lean all parts thoroughly and re-assemble by reversing the above procedure. SV-SRS VLVS 5

46 SV-SRS Symbol Number 1 SSMLY NUMR NTTON RT esignation ode escription Style S Underwriter Listed 2 Series V Material rass or 5 Size /8 1/ / 1 1 / 1 1 /2 2 6 Spring See hart See Spring Pressure hart 7 Piston ardened Steel, deep grove Stainless Steel, deep grove ardened Steel, shallow groove Stainless Steel, shallow groove XMPL: S Underwriter s Listed V Series SV-55O rass OW TO ORR -55 Spring O ardened Steel Piston, eep roove Specify: 1. Valve Model Number 2. Spring Letter. Piston Number. Pressure Setting NOT: definite pressure setting is required due to Underwriter restrictions. limiting device is furnished to prevent over-adjustment more than 25% above set pressure. STTN VLVS Valve may be set with a hand pump for cracking pressure. t will be noted that the maximum set pressure is limited by the collar soldered to the adjusting screw. f a test stand is available, valve should be connected to the discharge header with the pump bypass open, and the bypass gradually closed until the desired pressure registers on the gauge. djust valve adjusting screw until valve slightly bleeds at the set bypass pressure and lock adjusting screw. f valve is required to bypass a given amount of fluid at a given pressure, a test stand having a flow meter in the pump discharge line must be available. With valve adjusted for cracking pressure as above, continue closing bypass until the required flow registers on the flow meter and observe pressure. Re-adjust pressure, if necessary, to obtain desired pressure at desired flow. SV-SRS VLVS Pipe Size /8 1/ / 1 1 / 1 1 /2 2 U.L. Symbol SV-25 SV-5 SV-5 SV-55 SV-65 SV-75 SV-85 UNRWRTR VLV PRSSUR RN RT LK -S Low igh SPRN PRSSUR RN N PRT NO. SUX R-US RN- YLLOW- WT- LU- Low igh Low igh Low igh Low igh Low igh

47 SV-SRS (rass) MNSONS R. ULLO N OUT R. Pipe Size /8 1/ / 1 1 / 1 1 / U.L. Symbol SV-25 SV-5 SV-5 SV-55 SV-65 SV-75 SV-85 MNSONS N NS R /2 6 / / /2 9 9 / /16 1 /8 1 / / / / / /2 2 9 /2 2 9 / / / / /8 1 7 / / / /2 2 7 /8 1 / PRTS LST Symbol NM /8 1/ VLV SZ / 1 1 / 1 1 / ody ap djusting Screw Retainer asket Lock Nut 5-S 05-S 05-S 605-S 705-S 805-S Spring See hart See hart See hart See hart See hart See hart See hart Stop Ring Piston.S. eep roove S.S. eep roove.s. Shallow roove S.S. Shallow roove SV-SRS VLVS Limit ollar

48 SV-SRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) /8 VLV TSTS 1/ VLV TSTS LLONS PR MNUT Rated apacity 5.P.M. US S PRSSUR RN N P.S.. 7-S = - 7-US = = = = = LLONS PR MNUT S US Rated apacity 11.P.M. PRSSUR RN N P.S.. 07-S = - 07-US = = = = = OVRPRSSUR N P.S OVRPRSSUR N P.S.. / VLV TSTS VLV TSTS SV-SRS VLVS LLONS PR MNUT S US Rated apacity 16.P.M. PRSSUR RN N P.S.. 07-S = - 07-US = = = = = LLONS PR MNUT S US Rated apacity 25.P.M. PRSSUR RN N P.S S = US = = = = = OVRPRSSUR N P.S OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 8

49 SV-SRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 1 1 / VLV TSTS 1 1 / VLV TSTS LLONS PR MNUT US S PRSSUR RN N P.S S = US = = = = = Rated apacity 50.P.M. R LLONS PR MNUT S PRSSUR RN N P.S S = US = = = = = Rated apacity 80.P.M. US OVRPRSSUR N P.S OVRPRSSUR N P.S.. VLV TSTS PRSSUR RN N P.S S = US = = = = = Rated apacity.p.m. LLONS PR MNUT S US SV-SRS VLVS OVRPRSSUR N P.S.. Overpressure - The pressure increase or accumulation above the set pressure when the valve is discharging flow. 9

50 NOTS NOTS 59 ancy Street lanchester, O 57 P: (97) : (97)78-98 mail: info@fulflo.com 50

51 TYPL PPLTONS ombustion quipment irculating Oil Systems eating quipment on Railroad ars Package and ndustrial oilers Oil urning quipment Machine Tools Valves are used for: Regulation of Lubricating System Pressure Regulation of Pressure for ydraulic eeds Regulation of oolant Pressure oring Machines rills (Radial, Single or Multiple Spindle) rinders (Surface, ylindrical, enterless and Universal) Lathes (ngine, Turret, utomatic) Milling Machines ydraulic Tracing Units ydraulic Manufacturing and Processing quipment Stamping Presses Press rakes Molding Presses Rams rushers ending and orming quipment ydraulic Test Stands To Maintain Specific Pressures s Safety Relief Valve to Protect Pumps, auges, etc. ircraft Test quipment and round Support quipment quipment Test Racks Pressure Test Racks ydraulic Power Units Used in asic Tank, Pump and Motor Systems Material andling quipment ydraulic oists ydraulic levators ydraulic Platforms Special quipment ire quipment Laundry quipment oal Mining quipment Road Spraying Machinery ar Washing Machinery leaning Machinery (Steam or Solution) ndustrial Sewing Machines airy Machinery Special and ustom ngineered ndustrial Machinery quipment for Oxygen and ndustrial asses ndustrial ir onditioning quipment Pumps - ilters ngines and Turbines, Lubrication and ontrol System iesel ngines Steam Turbines ydraulic Turbines as Turbines Mobile quipment ndustrial ompressors Processing Systems Public Utilities Maintaining ity Water System Pressures Protection and ontrol of ire ydrant Pressures Oil Refineries hemical Plants istilleries rrigation Systems Steel Mill and Processing Plants ood Processing Plants Papermill and Pulp Processing Plants Liquids andled ydraulic Oils Water (Treated, Purified and Salt Water) ry leaning Solvent eated Tar (Pumped) eated Molasses (Pumped) nhydrous mmonia dible ats and Oils Processed Liquid oods Processed Petroleum Products a PPLTONS VLV NTONS Pressure Safety Valve (PSV) pressure safety valve actuated by inlet static pressure and characterized by rapid opening or rapid popping action. this safety valve is tight shut-off and is for safety only. Meets SM S. V (Not a ulflo valve) Pressure Relief Valve (PRV) pressure relief device designed to re-close and prevent further flow after normal conditions have been restored. (ulflo) Relief Valve (RV) spring loaded pressure relief valve, actuated by the static pressure upstream of the valve. The valve opens normally in proportion to the increase in pressure over the set pressure. (ulflo) Safety Relief Valve (SRV) pressure relief valve characterized by rapid opening or popaction in direct proportion to the pressure increase, depending on the application. (ulflo) onventional Safety Relief Valve (SRV) spring-loaded pressure relief valve whose performance characteristics are directly affected by change in the back pressure of the valve. (ulflo) ackpressure The pressure existing at the outlet of a pressure relief valve, due to the pressure in the discharge system. the pressure can be constant or variable. t is the sum of the superimposed and build-up pressure. racking Pressure The pressure which the valve starts to leak flow through the valve, but before the set pressure. Set Pressure The inlet pressure the valve is adjusted to open, maintain or control under service conditions. ull Open Pressure The set pressure plus overpressure is when the valve is full open ifferential Set Pressure The pressure differential between the set pressure and constant superimposed backpressure. Superimposed ackpressure The static pressure existing at the outlet of the relief device at the time the device is required to operate. t is a result of pressure in the discharge system coming from another source. This pressure may be constant or variable. Overpressure The pressure increase or accumulation above the set pressure when the valve is discharging flow. a NTONS 51

52 T ULLO SPLTS OMPNY 59 ancy Street, lanchester, O 57 Telephone: (97) ax: (97) info@fulflo.com The Quiet Ones TTR R PRORMN atalog S--1