P2 - 25 mm (1") Metal Pump EOM - PSG Dover

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SECTION 2WILDEN PUMP DESIGNATION SYSTEMP2 /XXXXX/ XXX / XX /XXX / XXXXMODELO-RINGSVALVE SEATVALVE BALLSDIAPHRAGMSAIR VALVECENTER SECTIONWETTED PARTS & OUTER PISTONSPECIALTYCODE(if applicable)MODEL P2 METAL MATERIAL CODESWETTED PARTS & OUTER PISTONAA = ALUMINUM / ALUMINUMAZ = ALUMINUM / NO PISTONHH = ALLOY C / ALLOY CHZ = ALLOY C / NO PISTONSS = STAINLESS STEEL / STAINLESSSTEELSZ = STAINLESS STEEL /NO PISTONCENTER SECTIONLL = ACETALPP = POLYPROPYLENEAIR VALVEL = ACETALP = POLYPROPYLENESPECIALTY CODES0002 Unpainted special instructions0023 Wing nuts0070 Saniflo FDA0079 Tri-clamp fittings, wing nuts0080 Tri-clamp fittings ONLY0100 Wil-Gard II 110V0102 Wil-Gard II sensor wires ONLY0103 Wil-Gard II 220V0104 Wil-Gard II 110V, spark free0206 PFA coated hardware,Wil-Gard II sensor wires ONLYDIAPHRAGMSBNS = BUNA-N (Red Dot)EPS = EPDM (Blue Dot)FSS = SANIFLEX[Hytrel ® (Cream)]NES = NEOPRENE (Green Dot)PUS = POLYURETHANE (Clear)TEU = PTFE W/EPDMBACK-UP (White)TNL = PTFE W/NEOPRENEBACK-UP O-RING,IPD (White)TSU = PTFE W/SANIFLEX BACK-UP(White)VTS = VITON ® (White Dot)WFS = WIL-FLEX [Santoprene ®(Orange Dot)]XBS = CONDUCTIVE BUNA-N (Two RedDots)VALVE BALLBN = BUNA-N (Red Dot)EP = EPDM (Blue Dot)FS = SANIFLEX[Hytrel ® (Cream)]FV = SANITARY VITON ®(Two White Dots)NE = NEOPRENE (Green Dot)PU = POLYURETHANE (Brown)TF = PTFE (White)VT = VITON ® (White Dot)WF = WIL-FLEX [Santoprene ® (OrangeDot)]VALVE SEATA = ALUMINUMH = ALLOY CS = STAINLESS STEELVALVE SEAT O-RINGBN = BUNA-NEP = EPDMFS = SANIFLEX[Hytrel ® (Cream)]PU = POLYURETHANE (Brown)TF = PTFE (White)WF = WIL-FLEX [Santoprene ® ]0247 Discharge and inlet facing exhaust0250 Discharge facing forward0502 PFA coated hardware0603 PFA coated hardware, Wil-Gard II 110V0608 PFA coated hardware, Wil-Gard II 220V0720 Hybrid bolted0721 Hybrid bolted, BSPT0722 Hybrid bolted, SanifloNOTE: MOST ELASTOMERIC MATERIALS USE COLORED DOTS FOR IDENTIFICATION.Viton is a registered trademarks of DuPont Dow Elastomers.WILDEN PUMP & ENGINEERING, LLC2WIL-10180-E-02
SECTION 3THE WILDEN PUMP — HOW IT WORKSThe Wilden diaphragm pump is an air-operated, positive displacement, self-priming pump. These drawings show the flowpattern through the pump upon its initial stroke. It is assumed the pump has no fluid in it prior to its initial stroke.FIGURE 1 The air valve directs pressurized air tothe back side of diaphragm A. The compressedair is applied directly to the liquid column separatedby elastomeric diaphragms. The diaphragmacts as a separation membrane between thecompressed air and liquid, balancing the load andremoving mechanical stress from the diaphragm.The compressed air moves the diaphragm awayfrom the center section of the pump. The oppositediaphragm is pulled in by the shaft connected tothe pressurized diaphragm. Diaphragm B is on itssuction stroke; air behind the diaphragm has beenforced out to the atmosphere through the exhaustport of the pump. The movement of diaphragm Btoward the center section of the pump creates avacuum within chamber B. Atmospheric pressureforces fluid into the inlet manifold forcing the inletvalve ball off its seat. Liquid is free to move pastthe inlet valve ball and fill the liquid chamber (seeshaded area).FIGURE 2 When the pressurized diaphragm,diaphragm A, reaches the limit of its dischargestroke, the air valve redirects pressurized air tothe back side of diaphragm B. The pressurized airforces diaphragm B away from the center sectionwhile pulling diaphragm A to the center section.Diaphragm B is now on its discharge stroke.Diaphragm B forces the inlet valve ball onto itsseat due to the hydraulic forces developed in theliquid chamber and manifold of the pump. Thesesame hydraulic forces lift the discharge valve balloff its seat, while the opposite discharge valve ballis forced onto its seat, forcing fluid to flow throughthe pump discharge. The movement of diaphragmA toward the center section of the pump creates avacuum within liquid chamber A. Atmospheric pressureforces fluid into the inlet manifold of the pump.The inlet valve ball is forced off its seat allowing thefluid being pumped to fill the liquid chamber.FIGURE 3 At completion of the stroke, the air valveagain redirects air to the back side of diaphragm A,which starts diaphragm B on its exhaust stroke. Asthe pump reaches its original starting point, eachdiaphragm has gone through one exhaust and onedischarge stroke. This constitutes one completepumping cycle. The pump may take several cyclesto completely prime depending on the conditions ofthe application.PRO-FLO ® AIR DISTRIBUTION SYSTEMOPERATION — HOW IT WORKSThe Pro-Flo ® patented air distributionsystem incorporates three moving parts:the air valve spool, the pilot spool, and themain shaft/diaphragm assembly. The heartof the system is the air valve spool and airvalve. The air valve design incorporates anunbalanced spool. The smaller end of thespool is pressurized continuously, while thelarge end is alternately pressurized thenexhausted to move the spool. The spooldirects pressurized air to one air chamberwhile exhausting the other. The air causesthe main shaft/diaphragm assembly toshift to one side — discharging liquid onthat side and pulling liquid in on the otherside. When the shaft reaches the end of itsstroke, the inner piston actuates the pilotspool, which pressurizes and exhausts thelarge end of the air valve spool. The repositioningof the air valve spool routes the airto the other air chamber.WIL-10180-E-023 WILDEN PUMP & ENGINEERING, LLC
Page 1 and 2: P2MOriginal Series METAL PumpsEOME
Page 3: SECTION 1P2 METALCAUTIONS - READ FI
Page 7 and 8: SECTION 4CDIMENSIONAL DRAWINGP2 MET
Page 9 and 10: SECTION 5CPERFORMANCE CURVESP2 META
Page 11 and 12: SUGGESTED INSTALLATIONCOMBINATIONFI
Page 13 and 14: SECTION 8AP2 METALDIRECTIONS FOR DI
Page 15 and 16: SECTION 8BPRO-FLO ® AIR VALVE/CENT
Page 17 and 18: SECTION 8CREASSEMBLY HINTS & TIPSAS
Page 19 and 20: P2 METAL RUBBER/TPE-FITTEDPolypropy
Page 21 and 22: P2 METAL PTFE-FITTEDPolypropylene C
Page 23: WARRANTYEach and every product manu

P2 - 25 mm (1") Metal Pump EOM - PSG Dover

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