EOM Engineering Operation & Maintenance PS8 Original™ Series Metal Pump W h e r e I n n o v a t i o n F l o w s www.wildenpump.
Ta bl e of Con t en t s Section 1 cautions—Read First! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Section 2 Wilden Pump Designation System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Section 3 How It Works—Pump & Air Distribution System . . . . . . . . . . . . . . . . 3 Section 4 Dimensional Drawings . . . . . . . . . . . .
Section 1 cautions—Read First! AUTION: Do not apply compressed air to the C exhaust port — pump will not function. CAUTION: Do not exceed 82°C (180°F) air inlet temperature for Pro-Flo® Shift models. CAUTION: Do not over-lubricate air supply — excess lubrication will reduce pump performance. Pump is pre-lubed. CAUTION: Pumps should be thoroughly flushed before installing into process lines. FDA- and USDA-approved pumps should be cleaned and/ or sanitized before being used.
Section 2 W I L D E N P U M P D E S I G N AT I O N S Y S T E M PS8 Metal Legend 51 mm (2") Pump Maximum Flow Rate: 723 lpm (191 gpm) XPS8 / xXxxx / xxX / xx / xxx / xxxX Model o-rings valve seat valve balls diaphragms air valve center block air chambers wetted parts & outer piston specialty code (if applicable) material codes DIAPHRAGMS BNS = BUNA-N (Red Dot) EPS = EPDM (Blue Dot) FWS = SANITARY WIL-FLEX™, EZ-INSTALL [SANTOPRENE® (Two Colored Dots)] NES = NEOPRENE (Green Dot) TSS = FULL ST
Section 3 how it works—pump The Wilden diaphragm pump is an air-operated, positive displacement, self-priming pump. These drawings show flow pattern through the pump upon its initial stroke. It is assumed the pump has no fluid in it prior to its initial stroke. CLOSED OUTLET B OPEN OPEN A INLET CLOSED FIGURE 1 The air valve directs pressurized air to the back side of diaphragm A. The compressed air is applied directly to the liquid column separated by elastomeric diaphragms.
Section 4 Dimensional Dr awings PS 8 M e t a l DIMENSIONS ITEM A B C D E F G H J K L M N P R S T U V W X Y Z METRIC (mm) 404 45 363 630 668 58 64 346 48 339 659 315 257 231 257 15 64 51 284 58 279 396 15 DIA. STANDARD (inch) 15.9 1.8 14.3 24.8 26.3 2.3 2.5 13.6 1.9 13.3 26 12.4 10.1 9.1 10.1 0.6 2.5 2.0 11.2 2.3 11 15.6 0.6 DIA. LW0022 REV. A PS 8 M e t a l Sa n i f l oT M DIMENSIONS ITEM A B C D E F G H J K L M N P R METRIC (mm) 409 64 359 625 665 76 346 48 339 659 305 254 229 254 15 DIA.
Section 5 performance PS8 METAL RUBBER-FITTED Height..................................668 mm (26.3”) Width................................... 404 mm (15.9”) Depth................................... 338 mm (13.3”) Ship Weight..............Aluminum 35 kg (78 lbs) 316 Stainless Steel 53 kg (117 lbs) Cast Iron 49 kg (109 lbs) Alloy C 54 kg (119 lbs) Air Inlet.................................... 19 mm (3/4”) Inlet.............................................51 mm (2”) Outlet.............................
performance PS8 METAL FULL-STROKE PTFE-FITTED Height..................................668 mm (26.3”) Width...................................404 mm (15.9”) Depth...................................338 mm (13.3”) Ship Weight..............Aluminum 35 kg (78 lbs) 316 Stainless Steel 53 kg (117 lbs) Cast Iron 49 kg (109 lbs) Alloy C 54 kg (119 lbs) Air Inlet.................................... 19 mm (3/4”) Inlet.............................................51 mm (2”) Outlet...............................
s uct i o n - l i f t cu r v e S PS 8 ME T AL S U C T ION - LIF T C APA B ILI T Y Suction-lift curves are calibrated for pumps operating at 305 m (1,000') above sea level. This chart is meant to be a guide only. There are many variables that can affect your pump's operating characteristics. The number of intake and discharge elbows, viscosity of pumping fluid, elevation (atmospheric pressure) and pipe friction loss all affect the amount of suction lift your pump will attain.
Section 6 S u g g e s t e d I n s ta l l at i o n Wilden pumps are designed to meet the performance requirements of even the most demanding pumping applications. They have been designed and manufactured to the highest standards and are available in a variety of liquid path materials to meet your chemical resistance needs. Refer to the performance section of this manual for an in-depth analysis of the performance characteristics of your pump.
Sugges t ed Ins ta l l at ion This illustration is a generic representation of an air-operated double-diaphragm pump. GAUGE (OPTIONAL) EQUALIZER SURGE DAMPENER (OPTIONAL) SHUT-OFF VALVE DISCHARGE FLEXIBLE CONNECTION MUFFLER FLEXIBLE CONNECTION SUCTION COMBINATION FILTER & REGULATOR AIR SHUT-OFF VALVE FOOTPAD NOTE: In the event of a power failure, the shut-off valve should be closed, if the restarting of the pump is not desirable once power is regained.
Sugges t ed Oper at ion & M a in t en a nce and can be restarted by reducing the fluid discharge pressure or increasing the air inlet pressure. Wilden Pro-Flo® Shift pumps run solely on compressed air and do not generate heat; therefore, your process fluid temperature will not be affected. OPERATION: The Pro-Flo® Shift pumps are prelubricated and do not require in-line lubrication.
Section 7 P U M P DIS A S SE M BLY To o l s R e q u i r e d : • ppropriate-sized A Wrench • Adjustable Wrench • ise equipped w/ V soft jaws (such as plywood, plastic or other suitable material) CAUTION: Before any maintenance or repair is attempted, the compressed air line to the pump should be disconnected and all air pressure allowed to bleed from the pump. Disconnect all intake, discharge and air lines.
P ump D isassembly Step 4 Step 5 Step 6 Remove the discharge valve balls and valve seats from the liquid chambers and inspect for nicks, chemical attack or abrasive wear. Replace worn parts with genuine Wilden parts for reliable performance. Using an appropriate-sized wrench, remove the two (2) small clamp bands that fasten the inlet manifold to the liquid chambers. Lift the liquid chambers and center section assembly from the inlet manifold to expose the inlet valve balls and valve seats.
P ump D isassembly Step 10 Step 11 Step 12 Using two adjustable wrenches, turn the outer diaphragm pistons in a counter-clockwise direction to remove the diaphragm assembly from center block. Inspect diaphragm assembly and shaft for signs of wear or chemical attack. Replace all worn parts with genuine Wilden parts for reliable performance. Inspect the diaphragm assembly for wear, damage or chemical attack. Replace any damaged components with genuine Wilden parts for reliable performance.
A ir v al v e / C e n ter S ecti o n D I S A S S E M B L Y To o l s R e q u i r e d : • ppropriate-sized A Wrench • Snap Ring Pliers • O-Ring Pick CAUTION: Before any maintenance or repair is attempted, the compressed air line to the pump should be disconnected and all air pressure allowed to bleed from the pump. Disconnect all intake, discharge and air lines. Drain the pump by turning it upside down and allowing any fluid to flow into a suitable container.
A ir v al v e / C e n ter S ecti o n D I S A S S E M B L Y Step 4 Step 5 Step 6 Lift away air chamber from center section and remove center block gasket. Replace gasket if necessary. Turn assembly over and remove the pilot spool sleeve from the center section. Using an O-ring pick, gently remove the O-ring from the opposite side of the dimpled end of the pilot spool. Step 7 Step 8 Step 9 Gently remove the pilot spool from the sleeve and inspect for nicks, wear or damage.
A ir v al v e / C e n ter S ecti o n D I S A S S E M B L Y Step 10 Step 11 Step 12 Using an O-ring pick, remove the two (2) shaft bushings from center block. Inspect and replace if necessary. Using an O-ring pick, gently remove the two (2) Glyd™ rings from the center block. Inspect and replace if necessary. Using an O-ring pick, remove the two (2) Glyd™ rings from modulator spool bore. Inspect and replace if necessary. Using an appropriate-sized wrench, remove the pilot exhaust muffler.
A ir v al v e / C e n ter S ecti o n D I S A S S E M B L Y Step 15 Step 16 Remove air valve end cap to expose air valve spool by lifting up on end cap. Inspect O-ring on end cap using an O-ring pick. Replace O-ring(s) if necessary. NOTE: The Pro-Flo® SHIFT air valve incorporates an end cap at both ends of the air valve. Remove the air valve spool from the air valve body by threading one air valve bolt into the end of the air valve spool and gently sliding the spool out of the air valve body.
reassembly hi n ts & tips Assembly: SHAFT SEAL INSTALLATION: Upon performing applicable maintenance to the air distribution system, the pump can now be reassembled. Please refer to the disassembly instructions for photos and parts placement. To reassemble the pump, follow the disassembly instructions in reverse order. The air distribution system needs to be a ssembled first, then the diaphragms and finally the wetted path. Please find the applicable torque specifications on this page.
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Section 8 E xploded Vie w & Parts Listing PS8 metal Exploded View ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS FULL FLOW PTFE LWOO27 REV.
E xploded Vie w & Parts Listing PS8 metal parts listing Item Description Qty. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Air Valve Assembly, Pro-Flo® Shift 1 O-Ring (-225), End Cap (Ø1.859” x Ø.139”) End Cap Screw, SHC, Air Valve (1/4”-20 x 4-1/2”) Muffler Plate, Pro-Flo® Shift Gasket, Muffler Plate, Pro-Flo® Shift Gasket, Air Valve, Pro-Flo® Shift Center Block Assembly, Pro-Flo® Shift 2 Pilot Sleeve Assembly O-Ring (-009), Pilot Spool Retaining (Ø.208” x Ø.
Section 9 Elastomer Options PS8 Metal MATERIAL Polyurethane Neoprene Buna-N FDA Buna-N 2 Conductive Buna-N Geolast® EPDM FDA EPDM 2 Viton® Full Stroke PTFE 2 Saniflex™ 2 FDA Wil-Flex™ 2 Wil-Flex™ Aluminum Stainless Steel Alloy C Mild Steel DIAPHRAGM (2) 08-1022-50 08-1010-51 08-1010-52 08-1010-69 08-1010-86 08-1022-15 08-1010-54 08-1010-74 08-1010-53 08-1040-55 08-1022-56 08-1022-57 08-1022-58 N/A N/A N/A N/A BACK-UP DIAPHRAGMS FULL STROKE (2) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 08-1065-56 08-1065-57
NOT E S
NOT E S
Warr ant y Each and every product manufactured by Wilden Pump and Engineering, LLC is built to meet the highest standards of quality. Every pump is functionally tested to insure integrity of operation. Wilden Pump and Engineering, LLC warrants that pumps, accessories and parts manufactured or supplied by it to be free from defects in material and workmanship for a period of five (5) years from date of installation or six (6) years from date of manufacture, whichever comes first.
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