Pioneers in Fluid Power

Transcription

1 ULLO SPLTS OMPNY... Pioneers in luid Power stablished in 1912, ULLO was incorporated in 19 under its present name and trademark. Patents for the original guided piston, directacting 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 pilotvalvecontrolled 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 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 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. TRMS N ONTONS 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. Shipping nformation. Please include purchaser s name, complete address and requested routing. Product many be shipped via U.P.S., 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 product. 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. The ulflo Specialties ompany, 01 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.. 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 $ xpediting ee. Orders may be subject to a 15% 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

2 ONTNTS ULLO NNRN T VSRS VSRS SV SRS SRS PPLTONS SPLTY 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 continuous 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. eneral nformation Terms & onditions NNRN T Valve esign haracteristics Valve SizingUse of Performance harts Pipe SizingUse of the Nomograph pplication iagrams Spring Material & Temperature hart onnections S ORing oss Socket Weld Standard Materials STM/SM Specifications Material odes ORing and Pad Materials Max Temp. Max Pressure Orifice rea & Piston/ody Tolerances lange and rilling imensions VSRS VLV pplication and nstallation Valve Setting Maintenance isassembly ssembly Number dentification hart Standard Spring Pressure Range hart imensions and Parts List V, V, VS, VSS, VSP V, V, VS, VSS, VSP V, V, VS, VSS VP, VP, VSP, VSSP V, V, VS, VSS VP, VP, VSP, VSSP Performance harts Performance harts VSRS VLV 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 Performance harts SRS pplication and nstallation Valve Setting Maintenance isassembly Model Number and Ordering nformation Standard Spring Pressure Range hart irect cting Valves imensions and Parts List , , Performance harts nternal Pilot Operated Valves isassembly imensions and Parts List P, P P, P Performance harts SVSRS (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 Performance harts PPLTONS Typical pplications Please contact ulflo direct for special applications. We provide special valves or modified valves to meet your application.

3 VLV SZN...Use of Performance harts NNRN T ULLO U PSTON 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 flowmodulating 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, overpressure, as soon as flow starts; pressure increases almost proportionally with flow. Springs and areas on ULLO valves are carefully designed to minimize this overpressure. 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. Overpressure 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 overpressure to produce a certain flow is a function of valve size and spring constant and can be determined with the aid of the overpressure charts given for the different valve sizes. The valve performance charts are based on tests made with oil of 150 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 overpressure. 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 overpressure of PS. The 17 PM will be discharged at a pressure of 25 + or 69 PS. The percentage of overpressure would be /25 X 0 or 1.5%. f a spring is used, extend the horizontal line to the slope and the overpressure is 70 PSU. The pressure to pass 17 PM would be or 95 PS and the overpressure 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 overpressure of 1 PS, therefore the cracking pressure must be 50 1 or 6 PS, and the percentage of overpressure of only 9 PS, but the cracking pressure would be 1/6 x 0 or 8.8%. The use of a 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 spring. or sizing valves for higher viscosity than 500 SSU, the following formula is used: V2 x area of valve for 150 SSU V1 V1 = 150 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.05. = 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 overpressure 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.

4 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 MXMUM SR VLOTY N PPS LOW RT PP SZ NS MTR N NS 5

5 PPLTONS STM 1 STM 2 ULLO VLV TO STM ULLO VLV 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 STM STM TO STM ULLO VLV TO STM SUTON PUMP SUTON ULLO VLV PUMP LOS LOOP SUTON PRSSUR + VLV ST PRSSUR QULS STM OPRTN PRSSUR PUMP NTRNL RL OR PUMPS WT (2) SUTON PORTS N (2) SR PORTS SUTON PRSSUR + VLV ST PRSSUR QULS STM OPRTN PRSSUR 6

6 SPRN MTRL & TMPRTUR RT MTRL MX TMP. STM SP. MTRL MX TMP. STM SP. VLV SZ PRT NO. 177PSS 188SS R. VNUM OL TMP. M WR TYP ON VLV SZ PRT NO. 177PSS 188SS R. VNUM OL TMP. ROM SLON TYP ON NNRN T / 1/ /8 1/ 7S RS 7TS 7 7U 7W 7X 7Y 7Z 7RS 7TS 07S RS 07TS 07 07U 07W 07X 07Y 07Z 07RS 07TS 07S U 07W 07X 07Y 07Z 507S U 507W 507X 507Y 507Z 507R 2 1 / 2 1 / 1 1 / 1 1 / 607S U 607W 607Y 607Z 607R 707S U 707W 707X 707Y 707Z 707R 807S U 807W 807X 807Y 807Z

7 S ORN OSS ONNTONS NNRN T VLV S NUMR SZ /8 1/ / 1 1 / 1 1 / X X X X X X X X X X X X X X X S (Society utomotive ngineers). T R 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 SV9 SV6 SV2 SV065 SV066 SV051 SV01 SV09 SV508 SV5071 SV508 SV6065 SV6066 SV7050 SV807 SV9 SV6 SV2 SV065 SV066 SV051 SV01 SV09 SV508 SV5071 SV508 SV6065 SV6066 SV7050 SV807 SVS9 SVS6 SVS2 SVS065 SVS066 SVS051 SVS01 SVS09 SVS508 SVS5071 SVS508 SVS6065 SVS6066 SVS7050 SVS807 SVSS9 SVSS6 SVSS2 SVSS065 SVSS066 SVSS051 SVSS01 SVSS09 SVSS508 SVSS5071 SVSS508 SVSS6065 SVSS6066 SVSS7050 SVSS807 8

8 SOKT WL & STNR MTRLS SOKT WL VLV SZ /8 1/ / 1 1 / 1 1 / MOL NUMR STL STNLSS MN. MX. SVS SVSS SVS07 SVSS SVS08 SVSS SVS502 SVSS SVS6058 SVSS SVS7067 SVSS SVS8070 SVSS STM/SM SPTONS djusting Screws Stop Rings, lands, onnets rass STM 16 Steel STM 879 Stainless Steel SM SM S79 lass 16 aps ast ron 01 thru 801 STM 1262 lass rass 1 thru 501 STM 16 rass 601 thru 801 SM 62 Steel ll models STM 879 Stainless Steel ll models SM S79 lass 16 Locknuts, Retainers Steel STM 879 Stainless Steel STM 582 lass 0 rass STM Pistons ardened Steel STM Stainless Steel STM 582 ond. 0 Stainless Steel STM 582 lass 0 odies ast ron STM 1262 lass rass SM 62 Steel STM 216 rade W Stainless Steel STM 51 8M Material odes (Unless Otherwise Specified) 16 Stainless Steel ast ron (No Part # Suffix) rass S Steel SS Stainless Steel NNRN T ORN & P MTRL SPTONS MTRL UN TYLNPROPYLN VTON SLON TLON NOPRN LS SUX O R PR RV RS RT RN R MXMUM TMP. O OS MTRL ST RON RSS STL STNLSS STL TMPRTUR OMPOUN 6 50 V 1 S 71 TMP. RN MN. MX MXMUM LLOWL WORKN PRSSUR ST RON RSS STL STNLSS STL 1500 PS 1500 PS 00 PS 00 PS STM SP OR R & PSTON/OY TOLRNS VLV SZ PSTON R N 2 OY O R T 1/ / / / / 1 1 / / MNSONS N NS OY NO O R T

9 LN N RLLN MNSONS (NS) NNRN T R. LSS 150 (RSS ST RON STL STNLSS STL) Valve lange lange Thickness olt ircle olt oles iameter rass l/steel iameter iameter 1 1 / 1 1 / 2 1 /* * * 1 / 5 / / 9 /8 1/ 7/16 1/ N/ N/ N/ 9/16 1/ 9/16 5/8 11/16 / 15/16 1 /8 1 / 7 /8 / 5 1 / / 5/8 5/8 5/8 / / / / 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 1/16 1/16 1/16 Spotface iameter Note: rass flanges conform to 150# NS 16.2 except with raised face. ast iron and steel flanges conform to 150# NS 16.5 steel specifications. *vailable in ast ron & Steel only R flange finish (Steel & Stainless Steel only) LSS 250 (ST RON) Valve lange iameter lange Thickness 11/16 / 1/16 7/8 olt ircle iameter 1 1 / 1 1 / 7 /8 5 1 / 6 1 /8 6 / 1 / 7 /8 1 / 5 Note: ast iron flanges conform to 250# NS 16.2 steel specifications. olt oles iameter / / 7/8 / LSS 00 (RSS STL STNLSS STL) Valve lange lange olt ircle olt oles iameter Thickness iameter iameter 1 1 / 1 1 / 2 1 / 7 /8 5 1 / 6 1 /8 6 / 7 / 8 1 / 11/16 / 1/16 7/8 1 1 /8 1 1 / 1 / 7 /8 1 / /8 6 5 /8 7 7 /8 / / 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# NS 16.5 steel specifications R flange finish (Steel & Stainless Steel only) LSS 600 (ST RON STL STNLSS STL Valve lange lange olt ircle olt oles iameter Thickness iameter iameter 1 1 / 1 1 / 2 1 / 7 /8 5 1 / 6 1 /8 6 1 / 7 / 8 1 / 11/16 1/16 7/8 1 1 /8 1 1 / 1 / 7 /8 1 / /8 6 5 /8 Raised ace iameter Raised ace eight Spotface iameter Spotface iameter Spotface iameter / 1 1 / 8 1 / 6 /16 1/ 1.78 Note: ast iron and steel flanges conform to 600# NS 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. / / 7/8 / 7/8 7/8 2 1 / 2 7 /8 5 /8 1 /8 5 TO LN TKNSS 1/ 1/ 1/ 1/ 1/ 1/ Number of olts 8 Number of olts 8 Number of olts Number of olts

10 VSRS VSRS 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 1/ 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...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

11 VSRS VSRS STTN 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 shutoff, 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 TYPL SSSMLY O STNR TYP VLV 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 chatterfree operation when the system is free of abrasives and foreign matter. ontinuous filtration of the liquid used is strongly recommended. To dismantle valve for inspection or cleaning: 1. Remove cap 2. Remove ORing. 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 reassemble 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 ORing 7. Remove adjusting screw (turn clockwise and pull out from bottom of bonnet ) 8. Remove Oring 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 reassemble by reversing the above procedure. 12

12 VSRS SSMLY NUMR NTTON RT Symbol No. esignation ode escription 1 Style None 2 Series V Material S SS onnections None ,7,8 S lange Rating 9 lange Style 150# & 600# Only ORing Material None R RV RS RT R 11 Options SP P 12 Piston Material /S /SS /SS Standard Model andwheel Model ast iron rass Steel 16 Stainless Steel Screw onnections lange onnections 00# lange lass Standard (250# lange lass ast ron Standard) 1/ /8 1/ / 1 1 / 1 1 / 00# lange Standard (no designation required) Raised ace, Staggered olt enters (standard on all lange rating) Smooth ace, Staggered olt enters Raised ace, olts on Valve enterline Smooth ace, olts on Valve enterlne una ORing ap Seal (standard) Viton ORing ap Seal Silicone ORing ap Seal Teflon ORing ap Seal (standard on VSS Series) flas ORing ap Seal Steel Parts (used on cast iron only) Panel Mount on andwheel Series ardened Steel 16 Stainless Steel 0 Stainless Steel 1 Spring S 1 Setting esired Pressure Setting XMPLS: V1RVSP/S/ V Series ast ron 1 1/ RV Viton ORing SP Steel Parts /S.S. Piston Spring V Series ast ron V5R/S/ 5 R /S langed una ORing.S. Piston Spring V Series ast ron V5150R/S/ R /S NOT: Stainless steel pistons are supplied on brass valves, unless hardened steel is specified. ardened steel pistons are supplied on cast iron or steel unless stainless steel is specified. una ORings are supplied as standard unless other material is specified. STNR PRSSUR RN RT Valve Pipe 1/ /8 1/ / 1 1 / 1 1 / Valve lange 1 1 / 1 1 / langed Rating Style una ORing SPRN PRSSUR N NTTON NO. LKS R RN YLLOW WT LU PURPLTS ROWNRS Low igh Low igh Low igh Low igh Low igh Low igh Low igh Low igh S. Piston Spring VSRS 1

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

14 VSRS V ast ron V rass VS Steel VSS Stainless Steel VSP ast ron with Steel Parts MNSONS MNSONS N NS K P (SKT SL) PP SZ R /2 Valve 1 1 / 1 1 / / 22 1 /2 1 / / 1 / /16 1 / /16 9 /16 Note: imensions reflect 150# and 00# only VSRS PRTS LST SYM. NM MOL K OY P (ORN SL) TN SRW RTNR ORN LOK NUT SPRN STOP RN PSTON P (SKT SL) SKT * See oring selection chart ** See spring pressure chart Recommended spare parts PP SZ V, VSP V VS VSS V, VSP V VS VSS V, V VS, VSP VSS V, V VS, VSP VSS V, VSP V, VS VSS V, VSP V, VS VSS LL MOLS V, V VSP, VS VSS RN STL 16 STNLSS STL 0 STNLSS STL V, VSP V VS V, V VSP, VS S 500SS 501R 501R 501SR 501SSR S 502SS 50 50S 50SS 50* 50* 50RT S 507** S 508SS SS S 50 50S VLV SZ 1 1 / 1 1 / S 700S 800S 600SS 700SS 800SS R 601R 601SR 601SSR S 602SS 60 60S 60SS 60* 60* 60RT 605S 605S 605SS 607** S 608SS SS S 60 60S 701R 701R 701SR 701SSR S 702SS 70 70S 70SS 70* 70* 70RT 705S 705S 705SS 707** S 708SS SS S 70 70S OR VLV ONLY 801R 801R 801SR 801SSR S 802SS 80 80S 80SS 80* 80* 80RT 805S 805S 805SS 807** S 808SS SS S 80 80S

15 VSRS V ast ron V RSS VS Steel VSS Stainless Steel VP ast ron VP rass VSP Steel VSSP Stainless Steel MNSONS Valve 1/ /8 1/ MNSONS N NS 8 1 / /2 1 /16 1 /8 8 1 / /2 1 /16 1 /8 9 5 / / / /16 7/8 7/8 1 1 /8 VSRS T.. M K PP SZ MXMUM R. ULLO OUT R / 1 1 / 1 1 / 9 / / / / / / /2 2 9 / / / / /2 2 7 /8 /8 1 1 / /2 2 9 / /16 1 /8 1 /8 1 5 /8 2 1 / 2 1 / PRTS LST SYM. NM MOL K L M PNL MOUNT LOK NUT OR ST SRW NWL TN SRW LOK NUT LN ONNT ORN ORN OY SPRN PSTON STOP RN LOK NUTS 2 RQ * See oring selection chart ** See spring pressure chart Recommended spare parts LL MOLS PP SZ 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 VP, VSP VP VSSP 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) VP, VSP, VP VSSP L VLV SZ 1/ /8 1/ / 1 1 / 1 1 / 1/ 1/ 1/ 5S 5S 1/ 1/ 1/ OMM. OMM. OMM. OMM. OMM. OMM S SS 5S 5S 5SS 225S SS 22SR 22R 22SSR 228SR 228R 228SSR 22* 22* 22RT * * RT 0 0 0S 0SS 7** 6 6 6SS 8S 8 8SS S S SS 5S 5S 5SS 225S SS 22SR 22R 22SSR 228SR 228R 228SSR 22* 22* 22RT * * RT 0 0 0S 0SS 7** 6 6 6SS 8S 8 8SS S 16 N R S 22 22SS 5S 5S 5SS 25S 25 25SS 2SR 2R 2SSR 28SR 28R 28SSR 22* 22* 22RT 0* 0* 0RT S 00SS 07** SS 08S 08 08SS 605S 605S 605SS 29 22S 22 22SS 05S 05S 05SS 525S SS 2SR 2R 2SSR 28SR 28R 28SSR 2* 2* 2RT 0* 0* 0RT S 00SS 07** SS 08S 08 08SS 705S 705S 705SS S SS 05S 05S 05SS 525S SS 52SR 52R 52SSR 528SR 528R 528SSR 2* 2* 2RT 50* 50* 50RT S 500SS 507** SS 508S SS 705S 705S 705SS S SS 655S 655S 655SS 625S SS 62SR 62R 62SSR 628SR 628R 628SSR 62* 62* 62RT 60* 60* 60RT S 600SS 607** SS 608S SS 805S 805S 805SS S SS 655S 655S 655SS 725S SS 72SR 72R 72SSR 728SR 728R 728SSR 62* 62* 62RT 70* 70* 70RT S 700SS 707** SS 708S SS 75S 75S 75SS S SS 655S 655S 655SS 825S SS 82SR 82R 82SSR 828SR 828R 828SSR 62* 62* 62RT 80* 80* 80RT S 800SS 807** SS 808S SS 75S 75S 75SS

16 VSRS V ast ron V rass VS Steel VSS Stainless Steel VP ast ron VP rass VSP Steel VSSP Stainless Steel MNSONS PNL MOUNT T.. M K L PP SZ MXMUM R /2 MNSONS N NS Valve 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 150# and 00# only /2 VSRS PRTS LST SYM. NM MOL K L M LOK NUT OR ST SRW NWL TN SRW LOK NUT LN ONNT ORN ORN OY SPRN PSTON STOP RN LOK NUTS 2 RQ * See oring 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 VP, VSP VP VSSP 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) VP, VSP, VP VSSP PP SZ 5S S SS 05S 05S 05SS 525S SS 52SR 52R 52SSR 528SR 528R 528SSR 2* 2* 2RT 50* 50* 50RT S 500SS 507** SS 508S SS 705S 705S 705SS MNSONS N NS 1 1 / 1 1 / 1/ 1/ 1/ OMM. OMM. OMM S SS 655S 655S 655SS 625S SS 62SR 62R 62SSR 628SR 628R 628SSR 62* 62* 62RT 60* 60* 60RT S 600SS 607** SS 608S SS 805S 805S 805SS S SS 655S 655S 655SS 725S SS 72SR 72R 72SSR 728SR 728R 728SSR 62* 62* 62RT 70* 70* 70RT S 700SS 707** SS 708S SS 75S 75S 75SS OR VLV ONLY S SS 655S 655S 655SS 825S SS 82SR 82R 82SSR 828SR 828R 828SSR 62* 62* 62RT 80* 80* 80RT S 800SS 807** SS 808S SS 75S 75S 75SS 17

17 VSRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity 150 S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 1/ VLV TSTS /8 VLV TSTS VSRS Rated apacity.p.m. S 1.8 PRSSUR RN N P.S...6 7S = 15 7 = 75 7 = = = = TS = RS = OVRPRSSUR N P.S.. TS RS 5 Rated apacity 5.P.M. S 2 PRSSUR RN N P.S.. 7S = 15 7 = 75 7 = = = = TS = RS = OVRPRSSUR N P.S.. TS RS 1/ VLV TSTS / VLV TSTS PRSSUR RN N P.S.. 07S = = = = = = TS = RS = S Rated apacity 11.P.M. RS TS S Rated apacity 16.P.M. PRSSUR RN N P.S.. 07S = = = = = = OVRPRSSUR N P.S OVRPRSSUR N P.S.. 18

18 VSRS PRORMN RTS ll valve tests 1. to 1. Oil Viscosity 150 S.S.U. at 0. (harts good from 0 to 500 S.S.U.) VLV TSTS 1 1 / VLV TSTS S PRSSUR RN N P.S.. 507S = = = = = = R = Rated apacity 25.P.M. R S PRSSUR RN N P.S.. 607S = = = = = = R = Rated apacity 50.P.M. R VSRS OVRPRSSUR N P.S OVRPRSSUR N P.S / VLV TSTS VLV TSTS S PRSSUR RN N P.S.. 707S = = = = = = R = Rated apacity 80.P.M. R PRSSUR RN N P.S.. 807S = = = = = = S Rated apacity 150.P.M OVRPRSSUR N P.S OVRPRSSUR N P.S.. 19

19 V00 SRS VLV VSRS The ulflo V00 Series valve is similar to the VSeries 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 oring has been incorporated around the adjusting screw to further prevent liquid from escaping. PPLTON The ulflo V Series range in size from 1/ 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.

20 VSRS STTN 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 shutoff, 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 chatterfree 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 ORing. Remove lock nut. Remove adjusting screw 5. Remove bonnet 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 reassemble by reversing the above procedure. VSRS No Leaking, ripping, Spills or Venting The ulflo V00 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 oring has been incorporated around the adjusting screw to further prevent liquid from escaping. Operates fficiently and ffectively The V00 Series valves can be mounted in any position with sizes ranging from 1/ 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 chatterfree 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

21 VSRS VSRS SSMLY NUMR NTTON RT Symbol No. esignation ode escription 1 Series V 2 Material S SS onnections None ,6,7 S lange Rating 8 lange Style 150# & 600# only 9 ORing Material Piston Material None R RV RS R /S /SS /SS ast iron rass Steel 16 Stainless Steel Screw onnections lange onnections 00# lange lass Standard (250# lange lass ast ron Standard) 1/ /8 1/ / 1 1 / 1 1 / 00# lange Standard (no designation required) Raised ace, Staggered olt enters (standard on all lange rating) Smooth ace, Staggered olt enters Raised ace, olts on Valve enterline Smooth ace, olts on Valve enterlne una ORing ap Seal (standard) Viton ORing ap Seal Silicone ORing ap Seal flas ORing ap Seal ardened Steel 16 Stainless Steel 0 Stainless Steel 11 Spring S 12 Setting esired Pressure Setting XMPLS: V1RV/S/ V Series ast ron 1 1/ RV Viton ORing /S.S. Piston Spring V Series ast ron V5R/S/ 5 R /S langed una ORing.S. Piston Spring V Series ast ron V5150R/S/ R /S NOT: Stainless steel pistons are supplied on brass valves, unless hardened steel is specified. ardened steel pistons are supplied on cast iron or steel unless stainless steel is specified. una O Rings are supplied as standard unless other material is specified. langed Rating Style una ORing.S. Piston Spring Valve Pipe 1/ /8 1/ / 1 1 / 1 1 / Valve lange 1 1 / 1 1 / STNR PRSSUR RN RT SPRN PRSSUR N NTTON NO. LKS R RN YLLOW WT LU PURPLTS ROWNRS Low igh Low igh Low igh Low igh Low igh Low igh Low igh Low igh

22 PP SZ VSRS V ast ron V rass VS Steel VSS Stainless Steel MNSONS ULLO R Valve 1/ /8 1/ / 1 1 / 1 1 / MNSONS N NS 5 1 /2 5 1 /2 7 /2 7 5 / /2 1 / /2 1 / 1 11 / / / / /2 2 9 / / / /2 1 7 / / /2 2 9 / /16 1 /8 1 /8 1 7 / / / /2 2 7 /8 1 / OUT N PP SZ PRTS LST SYM. NM MOL OY P TN SRW ORN (2 RQUR) LOK NUT PSTON SPRN STOP RN ONNT ORN (1 RQUR) 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 VLV SZ 1/ /8 1/ / 1 1 / 1 1 / S 00S 00S 500S 600S 700S 800S 0SS 00SS 00SS 500SS 600SS 700SS 800SS 0 0 0S 0SS 1SR 1R 1SR 1SSR 2S8 28 2S8 2SS8 * * * * 5S 5S 5S 5SS 6 6 6SS 7** 8S 8 8S 8SS 22S 22 22S 22SS 7058* 7058* 7058* 7058* 1SR 1R 1SR 1SSR 2S8 28 2S8 2SS8 * * * * 5S 5S 5S 5SS 6 6 6SS 7** 8S 8 8S 8SS 22S 22 22S 22SS 7058* 7058* 7058* 7058* 01SR 01R 01SR 01SSR 02S S8 02SS8 0* 0* 0* 0* 05S 05S 05S 05SS SS 07** 08S 08 08S 08SS 2S 2 2S 2SS 7006* 7006* 7006* 7006* 01R 01R 01SR 01SSR 02S S8 02SS8 0* 0* 0* 0* 05S 05S 05S 05SS SS 07** 08S 08 08S 08SS 2S 2 2S 2SS 7025* 7025* 7025* 7025* 501R 501R 501SR 501SSR 502S S8 502SS8 50* 50* 50* 50* S SS 507** 508S S 508SS 52S 52 52S 52SS 700* 700* 700* 700* 601R 601R 601SR 601SSR 602S S8 602SS8 60* 60* 60* 60* S SS 607** 608S S 608SS 62S 62 62S 62SS 7061* 7061* 7061* 7061* 701R 701R 701SR 701SSR 702S S8 702SS8 70* 70* 70* 70* S SS 707** 708S S 708SS 72S 72 72S 72SS 7062* 7062* 7062* 7062* 801R 801R 801SR 801SSR 802S S8 802SS8 80* 80* 80* 80* S SS 807** 808S S 808SS 82S 82 82S 82SS 50* 50* 50* 50* VSRS * See oring selection chart ** See spring pressure chart Recommended spare parts 2

23 VSRS V ast ron V rass VS Steel VSS Stainless Steel MNSONS MNSONS N NS Valve R ULLO 1 1 / 1 1 / 5 / / / /16 1 / / 1 /16 9 / / /2 VSRS PRTS LST SYM. NM MOL OY P TN SRW ORN (2 RQUR) LOK NUT PSTON SPRN STOP RN ONNT ORN (1 RQUR) * See oring 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 500SS 501R 501R 501SR 501SSR 502S S8 502SS8 50* 50* 50* 50* S SS 507** 508S S 508SS 52S 52 52S 52SS 700* 700* 700* 700* VLV SZ 1 1 / 1 1 / S 700S 800S 600SS 700SS 800SS 601R 601R 601SR 601SSR 602S S8 602SS8 60* 60* 60* 60* S SS 607** 608S S 608SS 62S 62 62S 62SS 7061* 7061* 7061* 7061* 701R 701R 701SR 701SSR 702S S8 702SS8 70* 70* 70* 70* S SS 707** 708S S 708SS 72S 72 72S 72SS 7062* 7062* 7062* 7062* OR VLV ONLY 801R 801R 801SR 801SSR 802S S8 802SS8 80* 80* 80* 80* S SS 807** 808S S 808SS 82S 82 82S 82SS 50* 50* 50* 50* 2

24 VSRS ll valve tests 1. to 1. Oil Viscosity 150 S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 1/ VLV TSTS /8 VLV TSTS Rated apacity.p.m. S 1.8 PRSSUR RN N P.S...6 7S = 15 7 = 75 7 = = = = TS = RS = OVRPRSSUR N P.S.. TS RS 5 Rated apacity 5.P.M. S 2 PRSSUR RN N P.S.. 7S = 15 7 = 75 7 = = = = TS = RS = OVRPRSSUR N P.S.. TS RS VSRS 1/ VLV TSTS / VLV TSTS PRSSUR RN N P.S.. 07S = = = = = = TS = RS = S Rated apacity 11.P.M. RS TS S Rated apacity 16.P.M. PRSSUR RN N P.S.. 07S = = = = = = OVRPRSSUR N P.S OVRPRSSUR N P.S.. 25

25 VSRS ll valve tests 1. to 1. Oil Viscosity 150 S.S.U. at 0. (harts good from 0 to 500 S.S.U.) VLV TSTS 1 1 / VLV TSTS VSRS S PRSSUR RN N P.S.. 507S = = = = = = R = Rated apacity 25.P.M OVRPRSSUR N P.S.. R S PRSSUR RN N P.S.. 607S = = = = = = R = Rated apacity 50.P.M OVRPRSSUR N P.S.. R 1 1 / VLV TSTS VLV TSTS S PRSSUR RN N P.S.. 707S = = = = = = R = Rated apacity 80.P.M. R PRSSUR RN N P.S.. 807S = = = = = = S Rated apacity 150.P.M OVRPRSSUR N P.S OVRPRSSUR N P.S.. 26

26 SRS 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 150#, 00# or 600# NS flanges. The direct acting valves operate at pressures to 150 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 or stainless steel requirements should be referred to our engineering staff for recommendation. SRS 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. 27

27 SRS STTN 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 57 PM is flowing through the valve, at that point the main piston will open and then the valve will be considered at the cracking 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 chatterfree operation when the system is free of abrasives and foreign matter. ontinuous filtration of the liquid used is strongly recommended. SSSMLY O RT TN M SRS N K L To dismantle the valve for inspection or cleaning: 1. Remove cap and gasket 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 reassemble 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 reassembling bonnet to body L. Then proceed with steps 5,, 2, 1, in reverse order. 28

28 SRS Symbol No. 1 2 & 5 6 7,8,9 11 SSMLY NUMR NTTON RT esignation Series Material Type onnection S lange Rating lange Style Only ORing Material ode P None 150# 00# 600# R RV RS RT R escription ast ron ast Steel irect cting nternal Pilot Operated 2 1 / Screw Type lange Raised ace, Staggered olt enters (Standard) Smooth ace, Staggered olt enters Raised ace, olts on Valve enterline Smooth ace, olts on Valve enerline una ORing ap Seal (Standard) Viton ORing ap Seal Silicone ORing ap Seal Teflon ORing ap Steel flas ORing ap Seal XMPL: Series Steel P09 P Pilot Operated / NOT: Special valves are prefixed by numbers assigned by the factory. SRS (irect cting) PRSSUR RN RT Valve 2 1 / Symbol & & Spring Part No. Pressure Range and and 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 2. ORing dentification Number. Piston Material. Spring Part Number 5. Spring pressure range or desired pressure setting. & & & (ontinued) 60 and and P.S.. 15 P.S.. 27 P.S.. 75 P.S.. SRS (Pilot Operated) PRSSUR RN RT Valve 2 1 / Symbol O & O & O & Spring Part No. Pressure Range 0980 and and and P.S P.S P.S.. SRS 29

29 SRS 2 1 / and (irect cting) MNSONS K L M N PP SZ R. R. Valve 2 1 / MNSONS N NS 15 9 / /2 5 1 / /2 6 5 /8 6 /8 7 /8 PP SZ R. PRTS LST Symbol NM 2 1 / VLV SZ ap 11R 1R djusting Screw SRS Lock Nut ORing ap Screw onnet ast ron Steel 605S 60R /8 x 1 SS S 70R /8 x 1 SS asket Spring Retainer Spring See hart See hart Spring See hart See hart K ylinder L ody ast ron Steel M Piston ardened Steel Stainless Steel N Retaining ushing Recommended spare parts 0

30 SRS 2 1 /, and (irect cting) MNSONS MNSONS N NS K L M PP SZ R / / 2 Valve 2 1 /2 2 1 /2 lange Rating 150# 00# 600# 150# 00# 600# 150# 00# 600# /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 Symbol NM 2 1 / VLV SZ ap 11R 1R 111R djusting Screw Lock Nut ORing ap Screw onnet ast ron Steel 605S 60R /8 x 1 SS S 70R /8 x 1 SS S 80R /8 x 1 SS SRS asket Spring Retainer Spring See hart See hart See hart Spring See hart See hart See hart K ylinder L ody ast ron 150# 00# 600# Steel 150# 00# 600# M Piston ardened Steel Stainless Steel N Retaining ushing Recommended spare parts 1

31 SRS PRORMN RTS (irect cting) ll valve tests 1. to 1. Oil Viscosity 150 S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 2 1 / VLV TSTS 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 15 to 150 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 SRS 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.. VLV TSTS 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.. 2

32 SRS (nternal Pilot Operated) P O L K N S M R SRS SSSMLY O NTRNL PLOT OPRT 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 spring retainer 8. Remove pilot spring 9. Unscrew and withdraw cylinder M (do not unscrew cylinder retainer L ). Unscrew and remove cylinder retainer L, after removing cylinder M. aution: hold in vise. alance spring O under heavy compression. 11. Unscrew and remove piston retainer K 12. Remove retaining ring 1. Remove pilot piston N 1. Remove balance spring O 15. Remove piston P 16. 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 reassemble as follows: Reverse process of disassembly from operation 16 to 6, then thread adjusting screw into bonnet so that it may be guided into the recess of spring retainer, while reassembling to body R. Then proceed with steps 5,, 2, 1 in reverse order.

33 SRS 2 1 / and (nternal Pilot Operated) MNSONS K L M N O P R S PP SZ R. R. Valve 2 1 / MNSONS N NS 15 5 /8 5 1 /2 5 1 / /2 6 5 /8 6 /8 7 /8 PP SZ R. PRTS LST Symbol NM 2 1 / VLV SZ SRS K L M N O P R S ap djusting Screw Lock Nut ORing ap Screw onnet ast ron Steel asket Retainer Ring Spring Retainer Pilot Spring Piston Retainer ylinder Retainer ylinder Pilot Piston ardened Steel Stainless Steel alance Spring Piston ardened Steel Stainless Steel ody ast ron Steel Retaining ushing 11R 12 60R /8 x 1 SS R 12 60R /8 x 1 SS Recommended spare parts

34 SRS 2 1 /, and (nternal Pilot Operated) MNSONS K L M N O P R S PP SZ R / / 2 Valve 2 1 /2 2 1 /2 MNSONS N NS lange Rating 150# 00# 600# 150# 00# 600# 150# 00# 600# 15 7 / / 16 1 / /2 18 /16 18 /8 5 / 6 1 /8 6 1 / 6 5 / / /8 PP SZ PRTS LST Symbol NM 2 1 / VLV SZ K L M N O P R S ap djusting Screw Lock Nut ORing ap Screw onnet ast ron Steel asket Retainer Ring Spring Retainer Pilot Spring Piston Retainer ylinder Retainer ylinder Pilot Piston ardened Steel Stainless Steel alance Spring Piston ardened Steel Stainless Steel ody Retaining ushing ast ron 150# 00# 600# Steel 150# 00# 600# 11R 12 60R /8 x 1 SS R 12 60R /8 x 1 SS R 12 60R /8 x 1 SS SRS Recommended spare parts 5

35 SRS PRORMN RTS (nternal Pilot Operated) ll valve tests 1. to 1. Oil Viscosity 150 S.S.U. at 0. (harts good from 0 to 500 S.S.U.) 2 1 / VLV TSTS Rated apacity 225.P.M 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. SRS Spring Part Nos. 80 and 1190 Pressure Ranges 50 to 500 P.S.. Tests apply only to Pilot Operated Valves or P Valves OVRPRSSUR N P.S Rated apacity 600.P.M. VLV TSTS Spring Part Nos and 1190 Pressure Ranges 50 to 500 P.S.. 0 Tests apply only to Pilot Operated Valves or P1 Valves OVRPRSSUR N P.S.. 6

36 SVSRS * *Underwriter Listed PPLTON The ulflo SV Series, Underwriter Listed, range in size from 1/ through and operate efficiently with liquids of any viscosity at pressures from 7 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 preset to the specified pressure and is equipped with a limiting device to prevent overadjustment. 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. SVSRS 7