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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.
*4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models Torque Specifications”). only. 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.
P8 Clamped Plastic SECTION 2 WILDEN PUMP DESIGNATION SYSTEM P8 PLASTIC LEGEND / X X X / X X / X X X / X X X X 58 mm (2") Pump O-RING MODEL VALVE SEAT SPECIALTY Maximum Flow Rate:...
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.
P8 Clamped Plastic PERFORMANCE P8 PLASTIC REDUCED-STROKE PTFE-FITTED Ship Weights……Polypropylene 34 kg (75 lb) PVDF 43 kg (95 lb) Air Inlet……………………..……..13 mm (1/2") Inlet…...…………………...…………51 mm (2") Outlet………………...………………51 mm (2") Suction Lift…………………….4.27 m Dry (14') 9.45 m Wet (31') Disp. per Stroke ……...…..1.78 L (0.47 gal) Max.
P8 Clamped Plastic P8 PLASTIC ULTRA-FLEX -FITTED Ship Weights…….Polypropylene 34 kg (75 lb) PVDF 43 kg (95 lb) Air Inlet……………………..……..13 mm (1/2") Inlet…...…………………...…………51 mm (2") Outlet………………...………………51 mm (2") Suction Lift…………………….4.88 m Dry (16') 8.84 m Wet (29') Disp. per Stroke ……...…..2.12 L (0.56 gal) Max.
P8 Clamped Plastic SECTION 5 SUCTION LIFT CAPABILITY P8 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.
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.
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Frequency of use, line pressure, viscosity and abrasiveness of process fluid all affect the parts life of a Wilden Operation pump. Periodic inspections have been found to offer the best means The Pro-Flo pumps are pre-lubricated and do not require in- line for preventing unscheduled pump downtime.
P8 Clamped 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) air.
NOTE: The model used for these instructions incorporates rubber diaphragms, balls, and seats. Models with PTFE diaphragms, balls and seats are the same except where noted. NOTE: Replace worn parts with genuine Wilden parts for reliable performance. Step 1 Step 2...
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P8 Clamped Plastic DISASSEMBLY / REASSEMBLY Step 4 Step 5 Step 6 Remove the discharge valve ball, valve Remove the two small clamp bands which Lift liquid chambers and center section seat and valve seat O-ring and inspect for fasten the intake manifold to the liquid from intake manifold to expose intake signs of wear and replace, if necessary.
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(Figure 13). Repeat disassembly instructions for the opposite liquid chamber. Inspect diaphragm assembly and shaft for signs of wear or chemical attack. Replace all worn parts with genuine Wilden parts for reliable performance.
Snap-Ring Pliers with your process fluid. O-Ring Pick 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" Remove air valve end cap to expose air Lift away air valve assembly and remove Hex Head wrench.
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P8 Clamped Plastic DISASSEMBLY / REASSEMBLY Step 4 Step 5 Step 6 Loosen the air valve bolts utilizing a 3/16" Remove pilot spool sleeve retaining snap Remove pilot spool retaining snap hex-head wrench and then remove muffler ring on both sides of center section with ring on both sides of center section plate screws.
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P8 Clamped Plastic DISASSEMBLY / REASSEMBLY Step 9 Step 10 With O-ring pick, gently remove the O-ring Check center block Glyd™ rings for signs of from the opposite side of the notched end of wear. If necessary, remove Glyd™ rings with the spool.
P8 Clamped 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 Torque Air Valve 5.1 N•m (45 in-lb)
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P8 Clamped 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.
P8 Clamped Plastic GASKET KIT INSTALLATION (08-9502-99) 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...
P8 Clamped Plastic SECTION 8 EXPLODED VIEW AND PARTS LIST P8 FULL-STROKE DIAPHRAGM-FITTED ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS WIL-10187-E-05...
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P8 Clamped Plastic EXPLODED VIEW AND PARTS LIST P8/PKAPP P8/PKAPP/0502 Qty. Item Part Description Pro-Flo Air Valve Assembly 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 End Cap, Pro-Flo 04-2330-20-700 04-2330-20-700 ® Screw, HHC, Air Valve (1/4" x 4.5") 01-6000-03 01-6000-05 Screw, SHCS, 10-16 x 1 3/4"...
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P8 Clamped Plastic EXPLODED VIEW AND PARTS LIST P8 PLASTIC REDUCED-STROKE ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS WIL-10187-E-05...
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P8 Clamped Plastic EXPLODED VIEW AND PARTS LIST P8/PKAPP P8/PKAPP/0502 Item Part Description Pro-Flo Air Valve Assembly 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 End Cap, Pro-Flo 04-2330-20-700 04-2330-20-700 ® Screw, HHC, Air Valve (1/4" x 4.5") 01-6000-03 01-6000-05 Screw, SHCS, 10-16 x 1 3/4"...
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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-10187-E-05...
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