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Dover Wilden Original P1, Engineering, Operation & Maintenance, Page: 15 / 28

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Dover Wilden Original P1 Engineering, Operation & Maintenance Download Page 15

13

CAUTION: Before any maintenance or repair is attempted, 
the compressed air line to the pump should be discon-
nected and all air pressure allowed to bleed from 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.

The Wilden single-piece manifold pump models are air- 
operated, double-diaphragm pumps with all wetted parts 
molded in PTFE PFA

.  The single-piece center section, 

consisting of center block and air chambers, is molded 
from glass-filled acetal on conductive models. All fasteners 
and hardware are stainless steel. The primary diaphragm 
is constructed of PTFE. All wetted sealing o-rings are 
PTFE encapsulated Viton

®

 on the UP

II

. The standard air 

distribution system is used on the UP

II

. All o-rings used 

in the pump are of a special material, and should only be 
replaced with Wilden factory-supplied parts.

Tools required to perform maintenance on the Model 
P1 pump are: 3/16-inch, 5/16-inch and 9/16-inch Allen 
wrench, 7/16-inch wrench, two open end adjustable 
wrenches, and an o-ring pick.

PLEASE read all directions before starting disassembly.

DISASSEMBLY:

Before actual disassembly is started, turn pump upside 
down and drain all liquid trapped in the pump into a suitable 
container. Be sure to use proper caution if liquid is corrosive 
or toxic. Mark each liquid chamber to its respective air 
chamber for easy alignment during reassembly.

P1 PTFE PFA Construction

WILDEN PUMP & ENGINEERING, LLC

 

WIL-10140-E-08

S e c t i o n   5

S I N G L E - P I E C E   M A N I F O L D   D I S A S S E M B L Y / R E A S S E M B L Y

Summary of Contents for Wilden Original P1

Page 1: ...W h e r e I n n o v a t i o n F l o w s www wildenpump com P1 Original Series PLASTIC Pumps EOM Engineering Operation Maintenance WIL 10140 E 08 REPLACES WIL 10140 E 07 ...

Page 2: ...CTION 4 DIMENSIONAL DRAWINGS 4 SECTION 5 PERFORMANCE A P1 Plastic Rubber Fitted 5 P1 Plastic TPE Fitted 5 P1 Plastic PTFE Fitted 6 B Suction Lift Curves 6 SECTION 6 SUGGESTED INSTALLATION OPERATION TROUBLESHOOTING 7 SECTION 7 ASSEMBLY DISASSEMBLY 10 SECTION 8 EXPLODED VIEW PARTS LISTING P1 Plastic Rubber Fitted 20 PTFE Fitted 22 SECTION 9 ELASTOMER OPTIONS 24 ...

Page 3: ...aintenance or repair is attempted the compressed air line to the pump should be disconnected and all air pressure allowed to bleed from 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 CAUTION Blow out air line for 10 to 20 seconds before attaching to pump to make sure all pipe line debris is clear ...

Page 4: ...ed hardware female connections 0522 Ultrapure II male bondable connections 0523 Ultrapure II PFA coated hardware male bondable connections 0524 Ultrapure II Wil Gard II 110V male bondable connections 0525 Ultrapure II female connections PFA coated hardware Wil Gard II sensor wires ONLY 0530 Ultrapure II Wil Gard II 110V female connections 0531 Ultrapure II female connections Wil Gard II sensor wir...

Page 5: ... valve ball off its seat while the opposite discharge valve ball is forced onto its seat forcing fluid to flow through the pump discharge The movement of diaphragm A toward the center block of the pump creates a vacuum within liquid chamber A Atmospheric pressure forces fluid into the inlet manifold of the pump The inlet valve ball is forced off its seat allowing the fluid being pumped to fill the...

Page 6: ...1 1 2 B 130 5 1 C 196 7 7 D 208 8 2 E 218 8 6 F 56 2 2 G 114 4 5 H 127 5 0 J 203 8 0 K 145 5 7 L 114 4 5 M 84 3 3 N 102 4 0 P 8 0 3 R 20 0 8 S 28 1 1 WILDEN PUMP ENGINEERING LLC WIL 10140 E 08 S e c t i o n 4 D I M E N S I O N A L D R A W I N G S ...

Page 7: ... center of the pump performance curve Height 218 mm 8 6 Width 208 mm 8 2 Depth 203 mm 8 0 Est Ship Weight Polypropylene 4 kg 9 lbs PVDF 5 kg 11 lbs PTFE PFA 6 kg 12 lbs Air Inlet 6 mm 1 4 Inlet 13 mm 1 2 Outlet 13 mm 1 2 Suction Lift 5 8 m Dry 19 9 8 m Wet 32 Displacement per Stroke 0 11 l 0 030 gal 1 Max Flow Rate 56 8 lpm 15 gpm Max Size Solids 1 6 mm 1 16 1 Displacement per stroke was calculate...

Page 8: ...25 psig air supply pressure Flow rates indicated on chart were determined by pumping water For optimum life and performance pumps should be specified so that daily operation parameters will fall in the center of the pump performance curve WILDEN PUMP ENGINEERING LLC WIL 10140 E 08 P1 PLASTIC PTFE FITTED S e c t i o n 4 P E R F O R M A N C E P 1 P L A S T I C S U C T I O N L I F T C A PA B I L I T ...

Page 9: ...ility will assure that loss of prime troubles will be eliminated In addition pump efficiency can be adversely affected if proper attention is not given to site location PIPING Final determination of the pump site should not be made until the piping problems of each possible location have been evaluated The impact of current and future installations should be considered ahead of time to make sure t...

Page 10: ...ting and preventing future maintenance problems and unscheduled downtime In addition accurate records make it possible to identify pumps that are poorly suited to their applications MAINTENANCE AND INSPECTIONS Since each applica tion is unique maintenance schedules may be different for every pump Frequency of use line pressure viscosity and abrasiveness of process fluid all affect the parts life o...

Page 11: ... 1 Check for pump cavitation slow pump speed down to allow thick material to flow into the liquid chambers 2 Verify that vacuum required to lift liquid is not greater than the vapor pressure of the material being pumped cavita tion 3 Check for sticking ball check valves If material being pumped is not compatible with pump elastomers swell ing may occur Replace ball check valves and seals with prop...

Page 12: ...lded of polypropylene or acetal All fasteners and hardware are stainless steel and the air valve is manufactured of brass or high tech engineered thermoplastic Its air distribution system is based on a revolutionary design which offers economical reliability and performance The model P1 Plastic is available in injection molded polypropylene PVDF and PTFE PFA wet ted parts TOOLS REQUIRED 8 mm 5 16 ...

Page 13: ...n parts with genuine Wilden parts for reliable perfor mance PTFE o rings should be replaced when reassem bled Step 6 Figure 6 Normally the inlet and discharge mani fold should not be disassembled during regular pump maintenance Should this be necessary completely remove and disassemble manifold clamp bands Step 7 Figure 7 Inspect o rings for wear or damage and replace if necessary PTFE o rings sho...

Page 14: ...re 11B 2 The outer piston diaphragm inner piston and disc spring separate from the shaft which remains connected to the opposite side diaphragm assem bly PTFE fitted pumps come standard with back up diaphragms not shown NOTE Disc spring not shown on Figure 11B Step 12 Figure 12 To remove the diaphragm assembly from the shaft secure shaft with soft jaws a vise fitted with plywood or other suitable ...

Page 15: ...E encapsulated Viton on the UPII The standard air distribution system is used on the UPII All o rings used in the pump are of a special material and should only be replaced with Wilden factory supplied parts Tools required to perform maintenance on the Model P1 pump are 3 16 inch 5 16 inch and 9 16 inch Allen wrench 7 16 inch wrench two open end adjustable wrenches and an o ring pick PLEASE read a...

Page 16: ...ng or other damage is apparent these parts must be replaced Step 4 Figure 4 Loosen and remove clamp bands from around the inlet manifold Step 5 Figure 5 Lift center section off of the inlet mani fold It is now possible to inspect the outboard o rings on the inlet manifold Step 6 Figure 6 Place center section upside down on a flat surface Remove the o ring seat and valve ball from the bottom of the...

Page 17: ...ed 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 Be aware of hazardous effects of contact with your process fluid The Wilden Plastic P1 utilizes a revolutionary Pro Flo air distribution system A 13 mm 1 2 air inlet connects the air supply to the center section Proprietary composite seals...

Page 18: ...OTE Seals should not be removed from pilot spool Seals are not sold separately Step 9 Figure 9 Check center section Glyd rings for signs of wear If necessary remove Glyd rings with o ring pick and replace Step 5 Figure 5 Remove air valve spool from air valve body by threading one air valve bolt into the end of the spool and gently sliding the spool out of the air valve body Inspect seals for signs...

Page 19: ... a flat surface prior to tightening their clamp bands to the desired torque see this page for torque specs Be sure to tighten outer pistons simultaneously on PTFE fitted pumps to ensure proper torque values Ensure proper mating of liquid chambers to manifolds prior to tightening vertical bolts Overhang should be equal on both sides Apply a small amount of Loctite 242 to the shaft interval threads ...

Page 20: ...all sealing surfaces P1 Poly pumps come standard with expanded PTFE Gasket Kits P N 01 9500 99 for diaphragm bead only Carefully prepare sealing surfaces by removing all debris and foreign matter from diaphragm bead and all mating surfaces If necessary smooth or deburr all sealing surfaces Mating surfaces must be properly aligned in order to ensure positive sealing characteristics Step 4 Figure 4 ...

Page 21: ...S e c t i o n 5 N O T E S ...

Page 22: ...20 WILDEN PUMP ENGINEERING LLC WIL 10140 E 08 S e c t i o n 8 E X P L O D E D V I E W P A R T S L I S T I N G P1 PLASTIC Rubber Fitted E X P L O D E D V I E W ...

Page 23: ...500 19 Liquid Chamber 2 01 5000 20 01 5000 21 20 Manifold Tee Section 2 01 5160 20 01 5160 21 21 Inlet Manifold Elbow 2 01 5220 20 01 5220 21 22 Discharge Manifold Elbow 2 01 5230 20 01 5230 21 23 Screw SHCS Chamber Bolt 4 01 6080 03 01 6080 03 24 Vertical Bolt Washer 4 01 6730 03 01 6730 03 25 Vertical Bolt Nut 4 04 6400 03 04 6400 03 26 Diaphragm 2 27 Valve Ball 4 28 Valve Seat 4 01 1120 21 500 ...

Page 24: ...22 WILDEN PUMP ENGINEERING LLC WIL 10140 E 08 S e c t i o n 8 E X P L O D E D V I E W P A R T S L I S T I N G P1 PLASTIC PTFE Fitted E X P L O D E D V I E W 36 35 ...

Page 25: ...0 01 5160 20 01 5160 21 01 5160 21 01 5160 22 21 Inlet Manifold Elbow 2 01 5220 20 01 5220 20 01 5220 21 01 5220 21 01 5220 22 22 Discharge Manifold Elbow 2 01 5230 20 01 5230 20 01 5230 21 01 5230 21 01 5230 22 23 Screw SHCS Chamber Bolt 4 01 6080 03 01 6080 05 01 6080 03 01 6080 05 01 6080 05 24 Vertical Bolt Washer 4 01 6730 03 01 6730 05 01 6730 03 01 6730 05 01 6730 05 25 Vertical Bolt Nut 4 ...

Page 26: ...flex 01 1010 56 01 1080 56 N A 01 1200 56 01 1300 56 PTFE3 01 1010 55 01 1080 55 N A N A PTFE with integral piston 01 1030 55 N A N A N A N A PVDF N A N A 01 1120 21 500 N A N A PTFE Encapsulated Viton N A N A N A 01 1205 60 01 1300 60 500 1Must be used with part number 01 5010 21 500 PTFE diaphragms require Neoprene back up diaphragms P N 01 1060 51 P1 Ultrapure pump series require high temp Buna...

Page 27: ...comes first Failure due to normal wear misapplication or abuse is of course excluded from this warranty Since the use of Wilden pumps and parts is beyond our control we cannot guarantee the suitability of any pump or part for a particular application and Wilden Pump and Engineering LLC shall not be liable for any consequential damage or expense arising from the use or misuse of its products on any...

Page 28: ...up PSG ADoverCompany PSG reserves the right to modify the information and illustrations contained in this document without prior notice This is a non contractual document 08 2014 A u t h o r i z e d P S G R e p r e s e n t a t i v e Where Innovation Flows 22069 Van Buren St Grand Terrace CA 92313 5607 T 1 909 422 1731 F 1 909 783 3440 ...

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