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Summary of Contents for Wilden P400
- Page 1 ENGINEERING OPERATION & MAINTENANCE MANUAL P400 Bolted Plastic Pump Where Innovation Flows WIL-11241-E-04...
- Page 2 Warranty Each and every product manufactured by Wilden is built to meet the highest standards of quality. Every pump is functionally tested to ensure integrity of operation. Wilden warrants that pumps, accessories and parts manufactured or supplied by it to be free from defects in material and workmanship for a period of five (5) years from date of installation or six (6) years from date of manufacture, whichever comes first.
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Page 3: Table Of Contents
P400 Bolted Plastic 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 P400 Plastic Rubber-Fitted ........................8 P400 Plastic TPE-Fitted .......................... -
Page 4: Section 1: Precautions - Read First
(See “Maximum only. Torque Specifications”). NOTE: Not all materials are available for all models. See “Wilden NOTE: Some PTFE-fitted pumps come standard from the Pump Designation System” material options for your pump. factory with expanded PTFE gaskets installed in the CAUTION: When choosing pump materials, be sure to diaphragm bead of the liquid chamber. -
Page 5: Section 2: Wilden Pump Designation System
P400 Bolted Plastic SECTION 2 WILDEN PUMP DESIGNATION SYSTEM P400 PLASTIC LEGEND P 400 / / X X X / X X / X X / X X X X 38 mm (1-1/2") Pump O-RINGS MODEL VALVE SEATS SPECIALTY Maximum Flow Rate:... -
Page 6: Section 3: How It Works
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. -
Page 7: Section 4: Dimensional Drawings
P400 Bolted Plastic SECTION 4 DIMENSIONAL DRAWING P400 Plastic – Polypropylene DIMENSIONS METRIC ITEM STANDARD (inch) (mm) 18.8 13.7 23.7 26.2 26.6 11.8 13.8 12.8 10.6 DIN FLANGE 110 DIA. 4.3 DIA. 150 DIA. 5.9 DIA. 18 DIA. 0.7 DIA. -
Page 8: Section 5: Performance
P400 Bolted Plastic SECTION 5 PERFORMANCE P400 PLASTIC RUBBER-FITTED Ship Weights.……Polypropylene 19 kg (41 lb) PVDF 27 kg (59 lb) Air Inlet…………..………………..13 mm (1/2") Inlet…...……………...………….38 mm (1-1/2") Outlet………………...………….38 mm (1-1/2") Suction Lift……………………5.5 m Dry (18.5’) 9.0 m Wet (29.5’) Disp. per Stroke ……..…..1.25 L (.330 gal) -
Page 9: P400 Plastic Reduced-Stroke Ptfe-Fitted
P400 Bolted Plastic PERFORMANCE P400 PLASTIC REDUCED-STROKE PTFE-FITTED Ship Weights.……Polypropylene 19 kg (41 lb) PVDF 27 kg (59 lb) Air Inlet…………..………………..13 mm (1/2") Inlet…...……………...………….38 mm (1-1/2") Outlet………………...………….38 mm (1-1/2") Suction Lift……………………3.3 m Dry (10.8 9.7 m Wet (31.8 Disp. per Stroke ……...0.59 L (0.155 gal) -
Page 10: Suction Lift Capability
P400 Bolted Plastic SECTION 5 SUCTION LIFT CAPABILITY P400 PLASTIC 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 11: Section 6: Suggested Installation, Operation, Maintenance, And Troubleshooting
The suction pipe size should be at least equal to or larger than the elbows, bends and fittings should be avoided. Pipe sizes should diameter size of the suction inlet on your Wilden pump. The suction be selected to keep friction losses within practical limits. All piping hose must be a non-collapsible, reinforced type because these should be supported independently of the pump. - Page 12 Frequency of use, line pressure, viscosity located far enough away from the pumping equipment such that it can and abrasiveness of process fluid all affect the parts life of a Wilden be reached safely in an emergency.
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Page 13: Section 7: Disassembly/Reassembly
P400 Bolted Plastic 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) -
Page 14: Pump Disassembly
NOTE: The model used for these instructions incorporates PTFE diaphragms and balls. Models with rubber diaphragms and balls are the same except where noted. NOTE: Replace worn parts with genuine Wilden parts for reliable performance. Step 1 Step 2... - Page 15 P400 Bolted Plastic DISASSEMBLY / REASSEMBLY Step 4 Step 5 Step 6 Inspect valve balls, valve seats, and valve Using a 9/16" wrench, loosen the inlet Remove the inlet valve balls, seats and seat O-rings for nicks, gouges, chemical manifold from the liquid chambers.
- Page 16 P400 Bolted Plastic DISASSEMBLY / REASSEMBLY Step 10 Step 11 Due to varying torque values, one of the Remove diaphragm assembly from shaft, following two situations may occur: secure shaft with soft jaws (a vise fitted with 1) The outer piston, diaphragm and inner...
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Page 17: Air Valve Disassembly
Be aware of any hazardous effects of contact O-Ring Pick with your process fluid. NOTE: Replace worn parts with genuine Wilden parts for reliable performance. Step 1 Step 2 Step 3 Loosen the air valve bolts utilizing a 3/16"... - Page 18 P400 Bolted Plastic DISASSEMBLY / REASSEMBLY Step 4 Step 5 Step 6 Remove air valve end cap to expose air Remove air valve spool from air valve body Remove pilot spool sleeve retaining snap valve spool by simply lifting up on end cap...
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Page 19: Reassembly Hints And Tips
P400 Bolted Plastic 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... -
Page 20: Shaft Seal Installation
P400 Bolted Plastic 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 21: Section 8: Exploded View And Parts List
P400 Bolted Plastic SECTION 8 EXPLODED VIEW AND PARTS LIST P400 PLASTIC LW0328 REV. B ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS WIL-11241-E-04... - Page 22 P400 Bolted Plastic EXPLODED VIEW AND PARTS LIST Model Description P400/PPPPP P400/KKPPP Item Description Qty. Air Distribution Components Air Valve Assembly, Pro-Flo ®1 04-2000-20-700 O-Ring, End Cap (-225, Ø1.859" x Ø.139") 04-2390-52-700 End Cap 04-2330-20-700 Screw, SHC, Air Valve (1/4"-20 x 4-1/2") 01-6000-03 Screw, SHC, Air Valve (#10-16 x 1-3/4")
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Page 23: Section 9: Elastomer Options
P400 Bolted Plastic SECTION 9 ELASTOMER OPTIONS ELASTOMER OPTIONS P400 PLASTIC REDUCED FULL-STROKE FULL-STROKE REDUCED FULL-STROKE EZ-INSTSALL STROKE VALVE VALVE VALVE SEAT MANIFOLD DIAPHRAGMS BACKUP STROKE MATERIALS DIAPHRAGMS DIAPHRAGMS BACK-UP BALLS SEATS O-RING O-RING DIAPHRAGMS DIAPHRAGMS DIAPHRAGMS DIAPHRAGMS Polyurethane 04-1022-50... - Page 24 22069 Van Buren Street Grand Terrace, CA 92313-5651 USA 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. WIL-11241-E-04...
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