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Summary of Contents for Wilden P820
- Page 1 Engineering Operation & Maintenance P820/P830 FIT Metal Pump Where Innovation Flows wildenpump.com...
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Page 2: Table Of Contents
P820/P830 Metal Reduced-Stroke PTFE-Fitted . . . . . . . . . . . . . . . . . . -
Page 3: Cautions-Read First
CAUTION: Do not exceed 8.6 bar (125 psig) air CAUTION: Tighten all hardware prior to installation. supply pressure. CAUTION: The process fluid and cleaning fluids must be chemically compatible with all wetted pump components. Please consult the Wilden Chemical Resistance Guide. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... -
Page 4: Wilden Pump Designation System
W I L D E N P U M P D E S I G N A T I O N S Y S T E M P820/P830 METAL LEGEND P820 / XXXXX / XXX / XX / XXX / XXXX 51 mm (2") Pump... - Page 5 H O W I T W O R K S — P U M P 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.
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Page 6: Dimensional Drawings
METRIC (mm) STANDARD (Inch) 17.8 15.3 26.6 29.6 29.8 15.3 13.3 20.1 12.8 10.0 12.8 14.9 DIN (mm) ANSI (Inch) 165 DIA. 6.0 DIA. 125 DIA. 4.8 DIA. 18 DIA. 0.8 DIA. LW0370 REV. A WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... - Page 7 METRIC (mm) STANDARD (Inch) 17.8 16.2 26.7 29.7 29.9 16.3 13.3 20.1 12.0 10.0 12.8 14.9 DIN (mm) ANSI (Inch) 165 DIA. 6.0 DIA. 125 DIA. 4.8 DIA. 18 DIA. 0.8 DIA. LW0372 REV. A WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01...
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Page 8: P820/P830 Metal Rubber-Fitted
Caution: Do not exceed 8.6 bar (125 psig) air For optimum life and performance, pumps should be specified so that daily operation supply pressure. parameters will fall in the center of the pump's performance curve. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... -
Page 9: P820/P830 Metal Reduced-Stroke Ptfe-Fitted
For optimum life and performance, pumps should be specified so that daily operation Caution: Do not exceed 8.6 bar (125 psig) air parameters will fall in the center of the pump's performance curve. supply pressure. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... -
Page 10: Suction-Lift Curves
The number of intake and discharge elbows, viscosity of pumping fluid, elevation (atmospheric pressure) and pipe friction loss all affect the amount of suction lift your pump will attain. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... - Page 11 N O T E S...
- Page 12 In addition, pump efficiency can be adversely your pump. Wilden offers the widest variety of elastomer affected if proper attention is not given to site location. options in the industry to satisfy temperature, chemical- PIPING: Final determination of the pump site should not be compatibility, abrasion-resistance and flex concerns.
- Page 13 A properly functioning valve will stop the air supply to the pump, therefore stopping output. This shut-off valve should be located far enough away from the pumping equipment such that it can be reached safely in an emergency situatioVn. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01...
- Page 14 Pump discharge rate can be controlled by limiting all affect the parts life of a Wilden pump. Periodic the volume and/or pressure of the air supply to the inspections have been found to offer the best pump.
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Page 15: Disassembly / Reassembly
Inspect ball cage area line will assist in proper alignment line will assist in proper alignment chambers. chambers. of manifold for excessive wear or of manifold for excessive wear or during reassembly. during reassembly. damage. damage. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... - Page 16 NOTE: Inverting gouges, chemical attack or abrasive the pump will facilitate removal of wear. Replace worn parts with inlet manifold. genuine Wilden parts for reliable performance. Step 7 Step 8 Step 9 Remove the inlet valve balls and...
- Page 17 Inspect for wear and Replace any damaged components soft jaws (aluminum, plastic or replace if necessary. with genuine Wilden parts for plywood) to ensure the shaft is reliable performance. not damaged. Using an adjustable wrench, remove the diaphragm assembly from the shaft.
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Page 18: Air Valve / Center Section Disassembly
Be aware of hazardous effects of contact with your process fluid. • Snap-Ring Pliers The Wilden P820 and P830 metal pumps utilize a revolutionary Pro-Flo ® • O-Ring Pick distribution system. - Page 19 “notched end“ first, this end incorporates the urethane o-ring and will be damaged as it slides over the ports cut in the sleeve. NOTE: Seals should not be removed from pilot spool. Seals are not sold separately. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01...
- Page 20 A I R V A L V E / C E N T E R S E C T I O N D I S A S S E M B L Y Step 9 Check center section seals for signs of wear. If necessary, remove seals with o-ring pick and replace. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01...
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Page 21: Reassembly Hints & Tips
Slowly insert the center shaft with a rotating motion. This will complete the resizing of the seal. • Perform these steps for the remaining seals. Figure A Figure B NEEDLE-NOSE PLIERS SHAFT SEAL TAPE SHAFT SEAL TAPE WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... -
Page 22: Exploded View & Parts Listing
E X P L O D E D V I E W & P A R T S L I S T I N G P820/P830 METAL E X P L O D E D V I E W FULL-STROKE PTFE REDUCED-STROKE PTFE FLANGED ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS PLASTIC ADS LW0373 REV. B WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... - Page 23 LW0374 REV. D *Refer to Elastomer Chart Plastic Center Block Assembly includes items 6, 11, 12, 14 and 19. Air Valve Assembly includes items 2 and 3. All boldface items are primary wear parts. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01...
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Page 24: Elastomer Options
Saniflex™ 08-1060-56 08-1065-56 08-1022-56 08-1080-56 08-1128-56 FDA Wil-Flex™ 08-1065-57 08-1022-57 08-1080-57 08-1128-57 Wil-Flex™ 08-1022-58 08-1080-58 08-1128-58 Aluminum 08-1129-01 Mild Steel 08-1129-08 Stainless Steel 08-1129-03 LW0374 REV. D Used in conjunction with metallic valve seat. WILDEN PUMP & ENGINEERING, LLC WIL-11590-E-01... - Page 25 N O T E S...
- Page 26 N O T E S...
- Page 27 Since the use of Wilden pumps and parts is beyond our control, we cannot guarantee the suitability of any pump or part for a particular application and Wilden Pump and Engineering, LLC shall not be liable for any consequential damage or expense arising from the use or misuse of its products on any application.
- Page 28 Where Innovation Flows ® reserves the right to modify the information and illustrations contained in this document without prior notice. This is a non-contractual document. 09-2017 Authorized PSG Representative: 22069 Van Buren St., Grand Terrace, CA 92313-5607 P: +1 (909) 422-1730 •...
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