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Summary of Contents for Dover PSG WILDEN PR870
- Page 1 ENGINEERING OPERATION & MAINTENANCE MANUAL PR860/PR870 Bolted Metal Pump Where Innovation Flows WIL-11720-E-03...
- Page 2 No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or any means electronic or mechanical, including photocopying and recording, without the written permission of PSG, a Dover Company, except as described by the terms of those agreements.
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Page 3: Table Of Contents
PR860/PR870 Bolted 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 ......................9 PR860/PR870 Metal Rubber-Fitted ............... 9 PR860/PR870 Metal EZ-Install TPE-Fitted ............ -
Page 4: Section 1: Precautions - Read First
PR860/PR870 Bolted Metal SECTION 1 PRECAUTIONS – READ FIRST! WARNING: Always wear safety glasses when operating CAUTION: All Wilden pumps are capable of passing a pump to avoid eye injury. If diaphragm rupture occurs, solids. Use a strainer on the pump intake to ensure that material being pumped may be forced out of the air the pump's rated solids capacity is not exceeded. -
Page 5: Section 2: Wilden Pump Designation System
PR860/PR870 Bolted Metal SECTION 2 WILDEN PUMP DESIGNATION SYSTEM PR860 /PR870 LEGEND XPR 860 / / X X X / X X / X X / X X X X METAL 51 mm (2") Pump O-RINGS MODEL VALVE SEATS SPECIALTY Maximum Flow Rate: VALVE BALLS CODE... -
Page 6: Section 3: How It Works
PR860/PR870 Bolted 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
PR860/PR870 Bolted Metal SECTION 4 DIMENSIONAL DRAWING PR860 ALUMINUM DIMENSIONS METRIC STANDARD ITEM (mm) (inch) 15.5 13.6 24.8 26.4 13.8 14.0 21.7 TJPR860-01 REV. A PR860 STAINLESS STEEL DIMENSIONS METRIC STANDARD ITEM (mm) (inch) 15.8 14.0 24.4 25.8 14.1 14.0 21.7 TJPR860-02 REV. - Page 8 PR860/PR870 Bolted Metal DIMENSIONAL DRAWING PR870 STAINLESS STEEL DIMENSIONS METRIC STANDARD ITEM (mm) (inch) 15.8 15.0 25.4 28.6 15.1 14.0 21.7 0.71 0.79 TJPR870-02 REV. A WIL-11720-E-03...
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Page 9: Section 5: Performance
PR860/PR870 Bolted Metal SECTION 5 PERFORMANCE PR860/PR870 METAL RUBBER-FITTED Ship Weight…………..Aluminum 32 kg (70 lb) 316 Stainless Steel Threaded 55 kg (121 lb) 316 Stainless Steel Flanged 62 kg (137 lb) Air Inlet……………………………………….3/4" Inlet...………………………………...51 mm (2") Outlet………………………………...51 mm (2") Suction Lift………..…………..5.9 m Dry (19.5′) 8.7 m Wet (29.4′) Disp. -
Page 10: Pr860/Pr870 Metal Full-Stroke Ptfe-Fitted
PR860/PR870 Bolted Metal PERFORMANCE PR860/PR870 METAL FULL-STROKE PTFE-FITTED Ship Weight…………..Aluminum 32 kg (70 lb) 316 Stainless Steel Threaded 55 kg (121 lb) 316 Stainless Steel Flanged 62 kg (137 lb) Air Inlet……………………………………….3/4" Inlet...………………………………...51 mm (2") Outlet………………………………...51 mm (2") Suction Lift………..…………..6.2 m Dry (20.8′) 9.0 m Wet (29.5′) Disp. -
Page 11: Suction Lift Capability
PR860/PR870 Bolted Metal SUCTION LIFT CAPABILITY PR860/PR870 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
PR860/PR870 Bolted Metal SECTION 6 SUGGESTED INSTALLATION, OPERATION, MAINTENANCE AND TROUBLESHOOTING Wilden pumps are designed to meet the performance requirements of be eliminated. In addition, pump efficiency can be adversely even the most demanding pumping applications. They have been affected if proper attention is not given to site location. designed and manufactured to the highest standards and are •... - Page 13 PR860/PR870 Bolted 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.
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Page 14: Section 7: Disassembly/Reassembly
PR860/PR870 Bolted 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
PR860/PR870 Bolted 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 3/4’’... - Page 16 PR860/PR870 Bolted Metal DISASSEMBLY / REASSEMBLY Step 7 Step 8 Step 9 Remove the inlet valve balls and valve seats Using the appropriate-sized wrench, remove The liquid chamber should be removed to from the inlet manifold and liquid chambers the liquid chamber from the center section. expose the diaphragm and outer piston.
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Page 17: Air Valve Disassembly
PR860/PR870 Bolted Metal DISASSEMBLY / REASSEMBLY AIR VALVE / CENTER SECTION 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 5 mm (3/16") Hex-Head Wrench intake, discharge, and air lines. - Page 18 PR860/PR870 Bolted Metal DISASSEMBLY / REASSEMBLY Step 4 Step 5 Step 6 Remove air valve end cap to expose air Remove air valve spool from air valve Remove pilot spool sleeve retaining snap valve spool by simply lifting up on end body by threading one air valve bolt into ring on both sides of center section with cap once air valve bolts are removed.
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Page 19: Reassembly Hints And Tips
PR860/PR870 Bolted Metal DISASSEMBLY / REASSEMBLY Step 9 Check center section shaft seals for signs of wear. If necessary, remove the shaft seals with O-ring pick and replace. REASSEMBLY HINTS AND TIPS Upon performing applicable maintenance to the air distribution Maximum Torque Specifications system, the pump can now be reassembled. - Page 20 PR860/PR870 Bolted 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.
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Page 21: Section 8: Exploded View And Parts List
PR860/PR870 Bolted Metal SECTION 8 EXPLODED VIEW AND PARTS LIST EXPLODED VIEW AND PARTS LIST PR860/PR870 TJPR860/TJPR870-03 REV.A ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS WIL-11720-E-03... - Page 22 PR860/PR870 Bolted Metal Description Qty. PR860/AAAAA/…/ P/N PR860/SSAAA/…/ P/N PR860/SSAAA/…/ P/N AIR DISTRIBUTION COMPONENTS Pro-Flo V™ Assembly, Air Valve 1 04-2030-01 04-2030-01 04-2030-01 O-Ring (-225), End Cap (Ø 1.859 x Ø .139) 04-2390-52-700 04-2390-52-700 04-2390-52-700 End Cap 04-2340-01 04-2340-01 04-2340-01 Screw, SHC, Air Valve (1/4"-20 x 4-1/2") 01-6000-03 01-6000-03...
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Page 23: Section 9: Elastomer Options
PR860/PR870 Bolted Metal SECTION 9 ELASTOMER OPTIONS REDUCED- FULL-STROKE VALVE VALVE FULL STROKE STROKE DIAPHRAGMS BACKUP MATERIAL DIAPHRAGMS BACKUP BALLS SEATS DIAPHRAGMS DIAPHRAGMS 08-1010-51 08-1080-51 08-1147-51 Neoprene 08-1060-51 ® 08-1010-52 08-1080-52 08-1147-52 Buna-N 08-1010-53 08-1080-53 08-1147-53 08-1010-54 08-1060-54 08-1080-54 08-1147-54 EPDM 08-1010-55-42 08-1040-55-42... - Page 24 No.2 Hai Tai Hua Ke Er Road Huayuan Industry Park Tianjin 300384, PR China P: +86-400 600 4026 PSG-China@psgdover.com www.psgdover.com.cn Where Innovation Flows Copyright 2023 PSG , a Dover Company ® ® ® ® Copyright 2023 PSG , a Dover Company reserves the right to modify the information and illustrations contained in this document without prior notice.
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