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Wilden P25 Advanced Plastic Series, Engineering, Operation & Maintenance

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Wilden P25 Advanced Plastic Series Engineering, Operation & Maintenance Download Page 9

 

WIL-11020-E-03

 

Wilden

®

 

9 

 

S U C T I O N   L I F T   C U R V E S  

 

 

 

 

 

P25 PLASTIC

  

SUCTION - LIFT 
CAPABILITY

 

 

Suction lift curves are calibrated for  

pumps operating at 305 m (1000')  

above sea level. This chart is meant  

to be a guide only. There are many  

variables which 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. 

 
 
 
 
 
 
 

Summary of Contents for P25 Advanced Plastic Series

Page 1: ...EOM ENGINEERING OPERATION MAINTENANCE P25 Bolted Plastic Pump WIL 11020 E 03 Where InnovationFlows...

Page 2: ...Plastic PTFE Fitted 7 Section 5 Performance 8 P25 Advanced Plastic PTFE Fitted 8 Suction Lift Curves 9 Section 6 Suggested Installation Operation 10 Maintenance and Troubleshooting Section 7 Disassemb...

Page 3: ...ifornia 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 regist...

Page 4: ...d result Pump valves and containers must be grounded to a proper grounding point when handling flammable fluids and whenever discharge of static electricity is a hazard CAUTION Do not exceed 8 6 bar 1...

Page 5: ...NOTE Not all models are available with all material options P25 PLASTIC 6 mm 1 4 Pump Maximum Flow Rate 16 7 lpm 4 4 gpm Section 2 W I L D E N P U M P D E S I G N A T I O N S Y S T E M SPECIALTY CODE...

Page 6: ...hamber and mani fold 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 th...

Page 7: ...3 Wilden 7 P25 Advanced Plastic DIMENSIONS ITEM METRIC mm STANDARD inch A 173 6 8 B 102 4 0 C 25 1 0 D 157 6 2 E 127 5 0 F 173 6 8 G 61 2 4 H 99 3 9 J 53 2 1 K 81 3 2 L 10 0 4 M 5 0 2 N 150 5 9 DIMENS...

Page 8: ...1 Displacement per stroke was calculated at 4 8 bar 70 psig air inlet pressure against a 2 bar 30 psig head pressure Example To pump 2 3 lpm 0 6 gpm against a discharge pressure of 6 2 bar 90 psig req...

Page 9: ...g at 305 m 1000 above sea level This chart is meant to be a guide only There are many variables which can affect your pump s operating characteristics The number of intake and discharge elbows viscosi...

Page 10: ...ndard Wilden muffler Other mufflers can be used to further reduce sound levels but they usually reduce pump performance Elevation Selecting a site that is well within the pump s dynamic lift capabilit...

Page 11: ...limiting the volume and or pressure of the air supply to the pump An air regulator is used to regulate air pressure A needle valve is used to regulate volume Pump discharge rate can also be controlled...

Page 12: ...ump 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 greate...

Page 13: ...expedite parts ordering please find an exploded view of the P25 model at the back of this manual PLEASE read all directions before starting disassembly NOTE Replace worn parts with genuine Wilden part...

Page 14: ...he inlet manifold Step 6 Remove the inlet valve balls manifold o rings and inlet manifold Inspect for nicks gouges chemical attack or abrasive wear Step 7 Using a 3 8 wrench remove the liquid chambers...

Page 15: ...WIL 11020 E 03 Wilden 15 Disassembly Reassembly Step 10 Remove the opposite side diaphragm and shaft from the center section With shaft secured remove diaphragm by turning counterclockwise...

Page 16: ...revolutionary Pro Flo air distribution system Proprietary composite seals reduce the coefficient of friction and allow the P25 to run lube free Constructed of polypropylene the Pro Flo air distributio...

Page 17: ...lve with NLGI grade 2 white EP bearing grease Step 5 Remove the porous polyethylene muffler element by sliding it toward the end cap opening The element can be cleaned by soaking it in a cleaning solu...

Page 18: ...new seals Stainless bolts should be lubed to reduce the possibility of seizing during tightening Be sure to tighten outer pistons simultaneously on PTFE fitted pumps to ensure proper torque values App...

Page 19: ...WIL 11020 E 03 Wilden 19 Exploded View and Parts Listing P25 ADVANCED PLASTIC PTFE FITTED EXPLODED VIEW Section 8...

Page 20: ...0 99 700 00 3850 99 700 10 Pilot Spool Retaining Ring 1 00 2650 03 700 00 2650 03 700 00 2650 03 700 00 2650 03 700 11 Main Shaft Assembly 1 00 3800 99 700 00 3800 99 700 00 3800 99 700 00 3800 99 700...

Page 21: ...stomer Options P25 Advanced Plastic Material Diaphragm Back Up O Ring Valve Seat O Ring Manifold O Ring Neoprene 00 1070 51 PTFE 00 1030 55 FKM 00 1070 53 EPDM 00 1070 54 PTFE Encapsulated FKM 00 1206...

Page 22: ...WIL 11020 E 03 Wilden Notes...

Page 23: ...WIL 11020 E 03 Wilden Notes...

Page 24: ...Terrace CA 92313 5651 USA P 1 909 422 1730 F 1 909 783 3440 psgdover com Where Innovation Flows PSG reserves the right to modifythe information and illustrations contained in this document without pr...

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