PSG Wilden P8 Series Engineering, Operation & Maintenance
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PSG Wilden P8 Series Engineering, Operation & Maintenance

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ENGINEERING OPERATION
& MAINTENANCE MANUAL
P8
Clamped Metal Pump
Where Innovation Flows
WIL-10184--E-03

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Summary of Contents for PSG Wilden P8 Series

  • Page 1 ENGINEERING OPERATION & MAINTENANCE MANUAL Clamped Metal Pump Where Innovation Flows WIL-10184--E-03...
  • Page 2 ® , a Dover Company. All rights reserved. PSG reserves the right to modify the information and illustrations in this document without prior notice. The product described in this document is furnished under a license agreement or nondisclosure agreement. No part of this document may be reproduced, stored in a retrieval...

  • Page 3: Table Of Contents

    P8 Clamped Metal CONTENTS SECTION 1: Precautions – Read First! ..................... 4 SECTION 2: Wilden Pump Designation System ..................5 SECTION 3: How It Works .......................... 6 SECTION 4: Dimensional Drawings ......................7 SECTION 5: Performance ........................... 8 P8 Metal Rubber-Fitted ..........................8 P8 Metal TPE-Fitted ..........................

  • Page 4: Section 1: Precautions - Read First

    P8 Clamped Metal SECTION 1 PRECAUTIONS – READ FIRST! WARNING: Always wear safety glasses when operating CAUTION: Thoroughly flush pumps before installing a pump to avoid eye injury. If diaphragm rupture occurs, them into process lines. Clean and/or sanitize FDA- and material being pumped may be forced out of the air USDA- approved pumps before using them.

  • Page 5: Section 2: Wilden Pump Designation System

    P8 Clamped Metal SECTION 2 WILDEN PUMP DESIGNATION SYSTEM P8 METAL LEGEND / X X X / X X / X X X / X X X X 51 mm (2") Pump O-RING Maximum Flow Rate: MODEL VALVE SEAT SPECIALTY 630 lpm (166 gpm) VALVE BALL CODE...

  • Page 6: Section 3: How It Works

    P8 Clamped Metal SECTION 3 HOW IT WORKS – AIR-OPERATED DOUBLE-DIAPHRAGM 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. FIGURE 1 The air valve directs pressurized air to FIGURE 2 When the pressurized diaphragm, FIGURE 3 At completion of the stroke, the air...

  • Page 7: Section 4: Dimensional Drawings

    P8 Clamped Metal SECTION 4 DIMENSIONAL DRAWING P8 Metal DIMENSIONS METRIC STANDARD ITEM (mm) (inch) 15.9 14.0 24.8 26.3 13.7 13.5 10.1 10.1 12.3 11.1 11.0 15.6 15 DIA. 0.6 DIA. LW0395 REV. A P8 Metal Saniflo™ FDA DIMENSIONS METRIC STANDARD ITEM (mm)

  • Page 8: Section 5: Performance

    P8 Clamped Metal SECTION 5 DIMENSIONAL DRAWING PERFORMANCE P8 METAL RUBBER-FITTED Ship Weights………….Aluminum 32 kg (70 lb) Stainless Steel 51 kg (112 lb) Cast Iron 47 kg (104 lb) Alloy C 52 kg (114 lb) Air Inlet……………………..……..13 mm (1/2") Inlet…...…………………...…………51 mm (2") Outlet………………...………………51 mm (2") Suction Lift……………………6.9 m Dry (22.7’) 8.6 m Wet (28.4’)

  • Page 9: P8 Metal Reduced-Stroke Ptfe-Fitted

    P8 Clamped Metal PERFORMANCE P8 METAL REDUCED-STROKE PTFE-FITTED Ship Weights………….Aluminum 32 kg (70 lb) Stainless Steel 51 kg (112 lb) Cast Iron 47 kg (104 lb) Alloy C 52 kg (114 lb) Air Inlet……………………..……..13 mm (1/2") Inlet…...…………………...…………51 mm (2") Outlet………………...………………51 mm (2") Suction Lift……………………...4.6 m Dry (15’) 9.5 m Wet (31’) Disp.

  • Page 10: P8 Metal Ultra-Flex -Fitted

    P8 Clamped Metal P8 METAL ULTRA-FLEX -FITTED Ship Weights………….Aluminum 32 kg (70 lb) Stainless Steel 51 kg (112 lb) Cast Iron 47 kg (104 lb) Alloy C 52 kg (114 lb) Air Inlet……………………..……..13 mm (1/2") Inlet…...…………………...…………51 mm (2") Outlet………………...………………51 mm (2") Suction Lift……………………4.9 m Dry (16’) 8.8 m Wet (29’) Disp.

  • Page 11: Suction Lift Capability

    P8 Clamped Metal SECTION 5 SUCTION LIFT CAPABILITY P8 METAL SUCTION- LIFT CAPABILITY 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.

  • Page 12: Section 6: Suggested Installation, Operation, Maintenance, And Troubleshooting

    P8 Clamped Metal SECTION 6 SUGGESTED INSTALLATION, OPERATION, MAINTENANCE AND TROUBLESHOOTING Wilden pumps are designed to meet the performance requirements of  Elevation: Selecting a site that is well within the pump’s even the most demanding pumping applications. They have been dynamic lift capability will assure that loss-of-prime issues will designed and manufactured to the highest standards and are be eliminated.
  • Page 13 P8 Clamped Metal SUGGESTED INSTALLATION, OPERATION, MAINTENANCE AND TROUBLESHOOTING to control the pump from a remote location. When the pump discharge pressure equals or exceeds the air supply pressure, the NOTE: In the event of a power failure, close the shut- pump will stop.

  • Page 14: Section 7: Disassembly/Reassembly

    P8 Clamped Metal SUGGESTED INSTALLATION, OPERATION, MAINTENANCE AND TROUBLESHOOTING Troubleshooting Pump air valve freezes. Pump will not run or runs slowly. Check for excessive moisture in the compressed air. Remove plug from pilot spool exhaust. Either install a dryer or a hot air generator for compressed Ensure that the air inlet pressure is at least 0.4 bar (5 psig) air.

  • Page 15: Pump Disassembly

    P8 Clamped Metal SECTION 7 DISASSEMBLY / REASSEMBLY PUMP DISASSEMBLY Tools Required: 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 1/2"...
  • Page 16 P8 Clamped Metal DISASSEMBLY / REASSEMBLY Step 4 Step 5 Step 6 Remove the discharge valve ball, valve Using a 1/2" wrench, remove the two (2) Lift liquid chambers and center section from seat and valve seat O-ring and inspect for large clamp bands which fasten the intake intake manifold to expose intake valve balls signs of wear and replace, if necessary.
  • Page 17 P8 Clamped Metal DISASSEMBLY / REASSEMBLY Step 9B Step 10 2) The outer piston, diaphragm and inner To remove diaphragm assembly from shaft, piston separate from the shaft which remains secure shaft with soft jaws connected to the opposite side diaphragm (a vise fitted with plywood, plastic or other assembly.

  • Page 18: Air Valve Disassembly

    P8 Clamped Metal DISASSEMBLY / REASSEMBLY DISASSEMBLY / REASSEMBLY AIR VALVE DISASSEMBLY Tools Required: 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 3/16ʺ...
  • Page 19 P8 Clamped Metal DISASSEMBLY / REASSEMBLY Step 4 Step 5 Step 6 Remove air valve spool from air valve body Remove pilot spool sleeve retaining snap Remove pilot spool assembly from center by threading one air valve bolt into the end ring on both sides of center section with section.
  • Page 20 P8 Clamped Metal DISASSEMBLY / REASSEMBLY Step 9 Step 10A Step 10B With O-ring pick, gently remove the O-ring Remove pilot spool bushing from center NOTE: Threaded sleeves (see A above) from the opposite side of the notched end of block.

  • Page 21: Reassembly Hints And Tips

    P8 Clamped Metal DISASSEMBLY / REASSEMBLY REASSEMBLY HINTS AND TIPS Upon performing applicable maintenance to the air distribution system, Maximum Torque Specifications the pump can now be reassembled. Please refer to the disassembly instructions for photos and parts placement. Description Torque Air Valve 5.1 N•m (45 in-lb)
  • Page 22 P8 Clamped Metal DISASSEMBLY / REASSEMBLY SHAFT SEAL INSTALLATION Pre-Installation Tools After all the old seals have been removed, the inside of the bushing The following tools can be used to aid in the installation of should be cleaned to ensure no debris is left that may cause premature the new seals: damage to the new seals.

  • Page 23: Gasket Kit Installation

    P8 Clamped Metal GASKET KIT INSTALLATION 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 1 Step 2 Step 3...

  • Page 24: Section 8: Exploded View And Parts List

    P8 Clamped Metal SECTION 8 EXPLODED VIEW AND PARTS LIST P8 FULL-STROKE DIAPHRAGM-FITTED ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS WIL-10184-E-03...
  • Page 25 P8 Clamped Metal P8/AAAPP P8/ WWAPP P8/SSAPP P8/SSAPP/0070 Item Part Description Qty. Pro-Flo Air Valve Assembly 04-2000-20-700 04-2000-20-700 04-2000-20-700 04-2000-20-700 ® O-Ring (-225), End Cap (1.859 X .139) 04-2390-52-700 04-2390-52-700 04-2390-52-700 04-2390-52-700 End Cap, Pro-Flo 04-2330-20-700 04-2330-20-700 04-2330-20-700 04-2330-20-700 ® Screw, HHC, Air Valve (1/4"...
  • Page 26 P8 Clamped Metal EXPLODED VIEW AND PARTS LIST P8 METAL SANIFLO – 1925/2004/EC WIL-10184-E-03...
  • Page 27 P8 Clamped Metal EXPLODED VIEW AND PARTS LIST P8/SSAPP/ 1935/2004/EC P8/SSAPP/ 1935/2004/EC Item Description Qty. Item Description Qty. Ultra-Flex Components Air Distribution Components Shaft, Ultra-Flex 08-3841-03 Air Valve Assembly, Pro-Flo 04-2000-20-700 Stud, Shaft (3/8”-16 x 1-7/8”) 08-6150-08 End Cap 04-2330-20-700 Piston, Inner 08-3761-01 O-Ring (-225), End Cap (Ø1.859”...

  • Page 28: Section 9: Elastomer Options

    P8 Clamped Metal SECTION 9 ELASTOMER OPTIONS P8 METAL Ultra-Flex™ Reduced-Stroke Material Diaphragms (2) Full-Stroke Backup Full-Stroke Valve Balls (4) Valve Seats (4) Valve Seat O-Rings (4) Diaphragms (2) Backup Diaphragms Diaphragms (2) Diaphragms (2) Polyurethane 08-1080-50 08-1120-50 Neoprene 08-1010-51 08-1020-51 08-1060-51 08-1080-51...
  • Page 29 P8 Clamped Metal WIL-10184-E-03...
  • Page 30 P8 Clamped Metal NOTES WIL-10184-E-03...
  • Page 31 P8 Clamped Metal NOTES WIL-10184-E-03...
  • Page 32 P: +1 (909) 422 -1730 psgdover.com Where Innovation Flows ® ® Copyright 2021 PSG , a Dover Company ® reserves the right to modify the information and illustrations contained in this document without prior notice. This is a non-contractual document.

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