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Wilden P4 series, Operation & Maintenance Manual

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Wilden P4 series Operation & Maintenance Manual Download Page 18

 

WIL-10183-E-04  

18 

P4 Clamped Metal 

 

 

 

 

 

 

Step 1 

  Step 2 

  Step 3 

Loosen the air valve bolts utilizing a 3

⁄

16" 

Hex Head wrench. 

  Remove muffler plate and air valve bolts 

from air valve assembly exposing muffler 
gasket for inspection. Replace if necessary. 

  Remove air valve end cap to expose air 

valve spool. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

AIR VALVE DISASSEMBLY

 

Tools Required: 

 

3/16

ʺ

 Hex Head Wrench 

 

 

1/4

ʺ

 Hex Head Wrench

 

 

Snap-Ring Pliers

 

 

O-Ring Pick

 

CAUTION:

 Before attempting any maintenance or repair, disconnect the compressed 

air line to the pump and allow all air pressure 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. Be aware of any hazardous effects of contact 
with your process fluid. 

 

NOTE:

 Replace worn parts with genuine Wilden parts for reliable performance. 

 

DISASSEMBLY / REASSEMBLY 

DISASSEMBLY / REASSEMBLY 

Summary of Contents for P4 series

Page 1: ...WIL 10183 E 04 Where InnovationFlows EOM ENGINEERING OPERATION MAINTENANCE MANUAL P4 Clamped Metal Pump ...

Page 2: ...alifornia LLC Wil Flex is a trademark of PSG California LLC Saniflex is a trademark of PSG California LLC All trademarks names logos and service marks collectively trademarks in this document are registered and unregistered trademarks of their respective owners Nothing contained in this document should be construed as granting any license or right to use any trademark without the prior written per...

Page 3: ...tal TPE Fitted 8 P4 Metal Reduced Stroke PTFE Fitted 9 P4 Metal Full Stroke PTFE Fitted 9 P4 Metal Ultra Flex Fitted 10 Suction Lift Capability 11 SECTION 6 Suggested Installation Operation Maintenance and Troubleshooting 12 SECTION 7 Disassembly Reassembly 15 Pump Disassembly 15 Air Valve Disassembly 18 Reassembly Hints and Tips 20 Gasket Kit Installation 22 SECTION 8 Exploded View and Parts List...

Page 4: ...the pump s rated solids capacity is not exceeded CAUTION Do not exceed 8 6 bar 125 psig air supply pressure CAUTION The process fluid and cleaning fluids must be chemically compatible with all wetted pump components Consult Chemical Resistance Guide CAUTION Thoroughly flush pumps before installing them into process lines Clean and or sanitize FDA and USDA approved pumps before using them CAUTION B...

Page 5: ...N TF PTFE WHITE VT FKM SILVER OR WHITE DOT WF WIL FLEX SANTOPRENE THREE BLACK DOTS VALVE SEATS A ALUMINUM S STAINLESS STEEL VALVE SEATS O RING A ALUMINUM BN BUNA N RED DOT FS SANIFLEX HYTREL CREAM 1 3 H ALLOY C M MILD STEEL EP EPDM BLUE DOT NE NEOPRENE GREEN DOT PU POLYURETHANE CLEAR S STAINLESS STEEL TF PTFE 1 2 3 VT FKM SILVER OR WHITE DOT WF WIL FLEX SANTOPRENE SPECIALTY CODES 014 BSP 0023 Wing...

Page 6: ...d manifold of the pump These same hydraulic forces lift the discharge 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 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 ...

Page 7: ...62 10 3 J 224 8 8 K 150 5 9 L 178 7 0 M 51 2 0 N 10 0 4 P 338 13 3 R 224 8 8 S 155 6 1 T 193 7 6 U 48 1 9 V 13 0 5 W 91 3 6 LW0338 REV A P4 Metal Saniflo FDA DIMENSIONS ITEM METRIC mm STANDARD inch A 396 15 6 B 64 2 5 C 206 8 1 D 422 17 4 E 91 3 6 F 138 5 4 G 320 12 6 H 211 8 3 J 262 10 3 K 224 8 8 L 152 6 0 M 178 7 0 N 69 2 7 P 10 0 4 LW0339 REV A DIMENSIONAL DRAWING ...

Page 8: ... fall in the center of the pump s performance curve Caution Do not exceed 8 6 bar 125 psig air supply pressure P4 METAL TPE FITTED Ship Weights Aluminum 13 kg 29 lb Stainless Steel 20 kg 45 lb Cast Iron 22 kg 49 lb Alloy C 23 kg 51 lb Air Inlet 19 mm 3 4 Inlet 38 mm 1 1 2 Outlet 32 mm 1 1 4 Suction Lift 5 2 m Dry 17 8 8 m Wet 29 Disp per Stroke1 1 1 L 0 29 gal Max Flow Rate 307 lpm 81 gpm Max Size...

Page 9: ... will fall in the center of the pump s performance curve Caution Do not exceed 8 6 bar 125 psig air supply pressure P4 METAL FULL STROKE PTFE FITTED Ship Weights Aluminum 13 kg 29 lb Stainless Steel 20 kg 45 lb Cast Iron 22 kg 49 lb Alloy C 23 kg 51 lb Air Inlet 19 mm 3 4 Inlet 38 mm 1 1 2 Outlet 32 mm 1 1 4 Suction Lift 6 4m Dry 21 9 3 m Wet 30 6 Disp per Stroke1 1 1 L 0 28 gal Max Flow Rate 330 ...

Page 10: ...8 mm 3 16 1Displacement per stroke was calculated at 4 8 bar 70 psig air inlet pressure against a 2 1 bar 30 psig head pressure Example To pump 170 lpm 45 gpm against a discharge pressure head of 2 0 bar 30 psig requires 4 1 bar 60 psig and 85 Nm3 h 50 scfm air consumption Flow rates indicated on chart were determined by pumping water For optimum life and performance pumps should be specified so t...

Page 11: ... 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 SUCTION LIFT CAPABILITY ...

Page 12: ...strokes per minute and then multiplying that figure by the displacement per stroke Muffler Using the standard Wilden muffler sound levels are reduced below OSHA specifications You can use other mufflers to reduce sound levels farther but they usually reduce pump performance Elevation Selecting a site that is well within the pump s dynamic lift capability will assure that loss of prime issues will ...

Page 13: ...d to regulate volume Pump discharge rate also can be controlled by throttling the pump discharge by partially closing a valve in the discharge line of the pump This action increases friction loss which reduces flow rate See Performance This is useful when the need exists to control the pump from a remote location When the pump discharge pressure equals or exceeds the air supply pressure the pump w...

Page 14: ...e unable to shift Pump runs but little or no product flows 1 Check for pump cavitation Slow pump speed down to allow thick material to flow into liquid chambers 2 Verify that vacuum required to lift liquid is not greater than the vapor pressure of the material being pumped cavitation 3 Check for sticking ball check valves a If material being pumped is not compatible with pump elastomers swelling m...

Page 15: ... of any hazardous effects of contact with your process fluid NOTE Your specific pump model may vary from the configuration shown however pump disassembly procedure will be the same NOTE Replace worn parts with genuine Wilden parts for reliable performance Step 1 Step 2 Step 3 Before starting disassembly mark a line from each liquid chamber to its corresponding air chamber This line will assist in ...

Page 16: ...let manifold inspect for nicks gouges chemical attack or abrasive wear Step 7 Step 8 Step 9 Remove one 1 set of large clamp bands which secure one 1 liquid chamber to the center section Lift liquid chamber away from center section to expose diaphragm and outer piston Using an adjustable wrench or by rotating the diaphragm by hand remove the diaphragm assembly NOTE Due to varying torque values one ...

Page 17: ...te liquid chamber Inspect diaphragm assembly and shaft for signs of wear or chemical attack Replace all worn parts with genuine Wilden parts for reliable performance To remove diaphragm assembly from shaft secure shaft with soft jaws a vise fitted with plywood plastic or other suitable material to ensure shaft is not nicked scratched or gouged Using an adjustable wrench remove diaphragm assembly f...

Page 18: ...ad Wrench 1 4ʺ Hex Head Wrench Snap Ring Pliers O Ring Pick CAUTION Before attempting any maintenance or repair disconnect the compressed air line to the pump and allow all air pressure 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 Be aware of any hazardous effects of contact wi...

Page 19: ...sembly if necessary Use caution when handling air valve spool to prevent damaging seals Remove pilot spool sleeve retaining snap ring on both sides of center section with snap ring pliers NOTE Seals should not be removed from assembly Seals are not sold separately Remove pilot spool assembly from center section Step 7 Step 8 Remove air chamber bolts with 1 4 hex head wrench Remove pilot spool bush...

Page 20: ...or equivalent Clean the inside of the center section shaft bore to ensure no damage is done to new shaft seals A small amount of NLGI grade 2 white EP bearing grease can be applied to the muffler and air valve gaskets to locate gaskets during assembly Make sure that the exhaust port on the muffler plate is centered between the two exhaust ports on the center section Stainless bolts should be lubed...

Page 21: ...ith the seal clamped in the pliers insert the seal into the busing bore and position the bottom of the seal into the correct groove When the bottom of the seal is seated in the groove release the clamp pressure on the pliers This will allow the seal to partially snap back to its original shape 6 After removing the pliers you will notice a slight bump in the seal shape Before the seal can be resize...

Page 22: ...the adhesive covering from the back of the PTFE tape Ensure that the adhesive strip remains attached to the PTFE tape Starting at any point place the PTFE tape in the center of the diaphragm bead groove on the liquid chamber and press lightly on the tape to ensure that the adhesive holds in place during assembly Do not stretch the tape during placement in the center of diaphragm bead groove The en...

Page 23: ...WIL 10183 E 04 23 P4 Clamped Metal SECTION 8 P4 METAL FULL STROKE DIAPHRAGM FITTED ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS EXPLODED VIEW AND PARTS LIST ...

Page 24: ...04 3800 03 700 04 3800 03 700 04 3800 03 700 04 3800 03 700 21 Shaft Stud P4 WAPP Bolt 2 2 08 6150 08 04 6091 08 08 6150 08 08 6150 08 22 Inner Piston 2 04 3700 01 700 04 3700 01 700 04 3700 01 700 04 3700 01 700 23 Diaphragm 2 04 1010 56 24 Outer Piston 2 04 4552 01 04 4550 08 04 4550 03 04 4550 03P 25 Valve Seat 4 04 1120 56 26 Valve Ball 4 04 1080 56 27 Liquid Chamber 2 04 5000 01 04 5000 02 04...

Page 25: ...WIL 10183 E 04 25 P4 Clamped Metal P4 METAL REDUCED STROKE DIAPHRAGM FITTED ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS EXPLODED VIEW AND PARTS LIST ...

Page 26: ...00 04 3830 03 700 N A 21 Stud Shaft 2 04 6150 08 04 6150 08 04 6150 08 04 6150 08 Shaft Stud Ultra FlexTM 2 N R 04 6152 08 04 6152 08 N A 22 Inner Piston 2 04 3715 01 04 3715 01 04 3715 01 04 3715 01 Inner Piston Ultra FlexTM 2 04 3760 01 700 04 3760 01 700 04 3760 01 700 N A 23 Back up Diaphragm 2 24 Diaphragm 2 25 Outer Piston 2 04 4600 01 04 4600 03 04 4600 03 04 4600 03P Outer Piston Ultra Fle...

Page 27: ...WIL 10183 E 04 27 P4 Clamped Metal P4 METAL SANIFLO FDA LW0096 REV A ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS EXPLODED VIEW AND PARTS LIST ...

Page 28: ...8 04 7100 03 70 29 RHSN Bolt Small Clamp Band 1 4 20 x 2 1 4 8 01 6070 03 30 Wing Nut Small Clamp Band 1 4 20 8 04 6651 10 31 Washer Brass Flat Ø 251 x Ø 620 x 063 8 04 6700 07 70 Valve Balls Valve Seats Valve O Rings 32 Ball Valve Pkg 4 1 33 Seat Valve Pkg 4 1 Seat Valve Stainless Steel 4 04 1121 03E 34 O Ring Valve Seat 226 Ø 1 984 x Ø 139 Not Shown Pkg 4 1 04 1200 55E Full Stroke Rubber TPE PTF...

Page 29: ...iaphragms 2 Full Stroke Diaphragms 2 Full Stroke Backup Diaphragms 2 Valve Balls 4 Valve Seats 4 Valve Seat O Rings 4 Neoprene 04 1010 51 04 1020 51 04 1060 51 N A 04 1080 51 04 1120 51 N A Buna N 04 1010 52 04 1020 52 N A N A 04 1080 52 04 1120 52 N A FKM 04 1010 53 04 1020 53 N A N A 04 1080 53 04 1120 53 N A EPDM 04 1010 54 04 1020 54 04 1060 54 N A 04 1080 54 04 1120 54 N A PTFE 04 1010 55 N A...

Page 30: ...WIL 10183 E 04 30 P4 Clamped Metal ...

Page 31: ...WIL 10183 E 04 31 P4 Clamped Metal NOTES ...

Page 32: ... USA P 1 909 422 1730 psgdover com Copyright 2021 PSG a Dover Company PSG reserves the right to modify the information and illustrations contained in this document without prior notice This is a non contractual document WIL 10183 E 04 Where InnovationFlows ...

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