Contents Section 1: Precautions - Read First! Section 2: Wilden Pump Designation System Section 3: How It Works —Pump & Air Distribution System Section 4: Dimensional Drawings P. 025 Pla st ic Section 5: Performance P. 025 Pla st ic R ubb er - F i tte d P.
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Copyright ® Copyright 2018 PSG , 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 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.
Section 1 Precautions - Read First! TEMPERATURE LIMITS*: CAUTION: Do not exceed 8 .6 bar (125 psig) air supply pressure. Acetal –29°C to 82°C –20°F to 180°F CAUTION: Before any maintenance or repair is Buna-N –12°C to 82°C 10°F to 180°F attempted, the compressed air line to the pump should Geolast ®...
HOW IT WORKS — PUMP Section 3 The Wilden diaphragm pump is an air-operated, placement, self-priming pump. These drawings show the 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 FIGURE When...
Section 5 PERFORMANCE P.025 PLASTIC RUBBER-FITTED Est. Ship Weight ..Polypropylene 1.4 kg (3 lb) PVDF 1.4 kg (3 lb) Air Inlet........3 mm (1/8") Inlet ......... 6 mm (1/4") Outlet ........6 mm (1/4") Suction Lift ......2.74 m Dry (9') 9.45 m Wet (31') Disp.
PERFORMANCE P.025 PLASTIC PTFE-FITTED Est. Ship Weight ..Polypropylene 1.4 kg (3 lb) PVDF 1.4 kg (3 lb) Air Inlet........3 mm (1/8") Inlet ......... 6 mm (1/4") Outlet ........6 mm (1/4") Suction Lift ......2.44 m Dry (8') 8.84 m Wet (29') Disp.
S U C T I O N L I F T C U R V E S P.025 PLASTIC SUCTION - LIFT CAPABILITY Suction-lift curves are calibrated for pumps operating at 1,000’ (305 m) above sea level. This chart is meant to be a guide only.
Section 6 Suggested Installation, Operation, Maintenance and Troubleshooting • Elevation: Selecting a site that is well within the pump’s The P.025 has a 6 mm (1/4") inlet and 6 mm (1/4") outlet and is dynamic-lift capability will assure that loss-of-prime issues will designed for flows to 18.7 lpm (4.8 gpm).
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Suggested Installation, Operation, Maintenance and Troubleshooting This illustration is a generic representation of an air-operated double-diaphragm pump. NOTE: In the event of a power failure, the shut-off discharge by partially closing a valve in the discharge line of the pump. This action increases friction loss which reduces flow rate.
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Suggested Installation, Operation, Maintenance and Troubleshooting 4. Check for sticking ball check valves. If material being pumped is Troubleshooting not compatible with pump elastomers, swelling may occur. Replace ball check valves and seats with proper elastomers. Pump will not run or runs slowly. Also, as the check valve balls wear out, they become smaller 1.
Section 7 Disassembly / Reassembly Pump Disassembly CAUTION: Before any maintenance or repair is attempted, the compressed air Tools Required: 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 •...
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Disassembly / Reassembly Step 4 Step 5 Step 6 To remove valve seats, use approximately Turn pump upside down and loosen Inspect ball and seats for abrasion. Inspect 3/16" rod or equivalent and push seats out bottom retainer. seat O-rings and bottom retainer O-rings from top to bottom.
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Disassembly / Reassembly Step 10 Step 11 Step 12 Remove T-section from liquid chamber. Loosen outer piston, with 7/16" wrench Pull the remaining diaphragm which is Remove T-section O-rings from T-section and 7/16" socket and twist off outer piston. attached to the shaft through the center with an O-ring pick.
Disassembly / Reassembly Air Valve / Center Section Disassembly Tools Required: CAUTION: Before any maintenance or repair is attempted, the compressed air line to the pump should be disconnected and all air pressure allowed to bleed from the pump. Disconnect all intake, •...
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Disassembly / Reassembly Step 5 Step 4 Step 6 The air valve spool can now be removed. Remove the porous polyethylene Remove pilot spool retaining ring with an O-ring pick. A 4-40 UNC (Unified National Coarse muffler element by sliding it toward the end-cap opening.
Disassembly / Reassembly Reassembly Hints & Tips Upon performing applicable maintenance to the air distribution system, the pump can now be reassembled. Please refer to the disassembly instructions for photos and parts placement. To reassemble pump, follow the disassembly instructions in reverse order.
Section 8 Exploded View and Parts Listing P.025 PLASTIC EXPLODED VIEW RUBBER / TPE - FITTED ® Wilden WIL-10090-E-08...
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Exploded View and Parts List P.025/PPPPP P.025/KKPPP Item # Description Qty. per Pump Pro-Flo Air Valve Assembly 00-2000-20-700 02-2000-20-700 ® Pro-Flo Air Valve End Cap 00-2300-20-700 00-2300-20-700 ® End Cap O-Ring (–017) 00-2390-52-700 00-2390-52-700 Muffler Element 00-3240-26-700 00-3240-26-700 Air Valve Bolt 00-6000-03-700 00-6000-03-700 Air Valve Gasket...
Exploded View and Parts Listing P.025 PLASTIC EXPLODED VIEW PTFE - FITTED ® Wilden WIL-10090-E-08...
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Exploded View and Parts List P.025/PPPPP P.025/KKPPP Item # Description Qty. per Pump Pro-Flo Air Valve Assembly 00-2000-20-700 02-2000-20-700 ® Pro-Flo Air Valve End Cap 00-2300-20-700 00-2300-20-700 ® End Cap O-Ring (–017) 00-2390-52-700 00-2390-52-700 Muffler Element 00-3240-26-700 00-3240-26-700 Air Valve Bolt 00-6000-03-700 00-6000-03-700 Air Valve Gasket...
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22069 Van Buren Street Grand Terrace, CA 92313-5651 USA 1 (909) 422-1730 • F: 1 (909) 783-3440 psgdover.com Where Innovation Flows ® reserves right to modify information and illustrations contained this document without prior notice. This is non-contractual document. 05- 2018 WIL-10090-E-08 ®...
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