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WIL-11590-E-04
Where Innovation Flows
EOM
ENGINEERING OPERATION
&
MAINTENANCE MANUAL
P820/P830
Bolted Metal Pump
WIL-11590-E-04 2
P820/830 Bolted Metal
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.
This is a non-contractual document.
Trademarks
PSG and the PSG logo are registered trademarks of PSG. Wilden
®
is a registered trademark of
PSG California LLC. Pro-Flo
®
SHIFT and Pro-Flo
®
are registered trademarks of PSG California
LLC. Wil-Flex
®
is a trademark of PSG California LLC. Saniflex™ is a trademark of PSG
California LLC.
All trademarks, names, logos and service marks (collectively “trademarks”) in this document are
registered and unregistered trademarks of their respective owners. Nothing contained in this
document should be construed as granting any license or right to use any trademark without the
prior written permission of the trademark owner.
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.
For more information, and to register your Wilden pump for warranty, please visit
https://www.psgdover.com/wilden/support/warranty-registration.
Certifications
WIL-11590-E-04 3
P820/830 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
P820/P830 Metal Rubber-Fitted................................................................................................................ 9
P820/P830 Metal EZ-Install TPE-Fitted .................................................................................................... 9
P820/P830 Metal Reduced-Stroke PTFE-Fitted ..................................................................................... 10
P820/P830 Metal Full-Stroke PTFE-Fitted .............................................................................................. 10
Suction Lift Capability .............................................................................................................................. 11
SECTION 6: Suggested Installation, Operation, Maintenance, and Troubleshooting ....................... 12
SECTION 7: Disassembly/Reassembly ................................................................................................... 15
Pump Disassembly.................................................................................................................................. 15
Air Valve Disassembly ............................................................................................................................ 18
Reassembly Hints and Tips .................................................................................................................... 21
Shaft Seal Installation ............................................................................................................................. 22
SECTION 8: Exploded View and Parts List ............................................................................................. 23
SECTION 9: Elastomer Options ............................................................................................................... 25
WIL-11590-E-04 4
P820/830 Bolted Metal
SECTION 1
WARNING:
CAUTION:
CAUTION:
TEMPERATURE LIMITS:
NOTE:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
NOTE:
NOTE:
NOTE:
NOTE:
WARNING:
PRECAUTIONS – READ FIRST!
WIL-11590-E-04 5
P820/830 Bolted Metal
SECTION
2
MATERIAL CODES
MODEL
WETTED PATH
OUTER PISTON
AIR CHAMBERS
CENTER BLOCK
AIR VALVE
DIAPHRAGMS
VALVE BALLS
VALVE SEATS
VALVE SEATS O-RINGS
SPECIALTY
CODES
NOTE:
NOTE:
P
8
20/
8
30 METAL
LEGEND
P
8
20
/
X
X
X
X
X
/
X
X
X
/
X
X
/
X
X
X
/
X
X
X
X
51
mm (
2
") Pump
Maximum Flow Rate:
609 lpm (161 gpm)
O
-
RING
MODEL
VALVE SEAT
SPECIAL
TY
VALVE BALL
CODE
DIAPHRAGMS
AIR VALVE
CENTER BLOCK
AIR CHAMBERS
OUTER PISTON
WETTED PATHS
WILDEN PUMP DESIGNATION SYSTEM
WIL-11590-E-04 6
P820/830 Bolted Metal
SECTION
3
FIGURE 1
FIGURE 2
FIGURE 3
HOW IT WORKS – AIR-OPERATED DOUBLE-DIAPHRAGM PUMP
HOW IT WORKS
–
AIR DISTRIBUTION SYSTEM
WIL-11590-E-04 7
P820/830 Bolted Metal
SECTION
4
P820 DUCTILE IRON & ALUMINUM
DIMENSIONS
ITEM
METRIC
(mm)
STANDARD
(inch)
LW0369 REV. A
P830 DUCTILE IRON & ALUMINUM
DIMENSIONS
ITEM
METRIC
(mm)
STANDARD (inch)
DIN (mm)
ANSI (Inch)
LW0370 REV. A
DIMENSIONAL DRAWING
WIL-11590-E-04 8
P820/830 Bolted Metal
P820 Stainless Steel
DIMENSIONS
ITEM
METRIC
(mm)
STANDARD
(inch)
LW0371 REV. A
P830 Stainless Steel
DIMENSIONS
ITEM
METRIC (mm)
STANDARD
(inch)
DIN (mm)
ANSI (Inch)
LW0372 REV. A
DIMENSIONAL DRAWING
WIL-11590-E-04 9
P820/830 Bolted Metal
SECTION
5
P820/P830 METAL
RUBBER
-
FITTED
Example:
Flow rates indicated on chart were determined by pumping water. For optimum life and performance, pumps
should be specified so that daily operation parameters will fall in the center of the pump's performance curve.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure.
P820/P830 METAL
EZ-INSTALL
TPE
-
FITTED
Example:
Flow rates indicated on chart were determined by pumping water. For optimum life and performance, pumps
should be specified so that daily operation parameters will fall in the center of the pump's performance curve.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure.
PERFORMANCE
WIL-11590-E-04 10
P820/830 Bolted Metal
P820/P830 METAL
REDUCED-STROKE
PTFE
-
FITTED
Example:
Flow rates indicated on chart were determined by pumping water. For optimum life and performance, pumps
should be specified so that daily operation parameters will fall in the center of the pump's performance curve.
Caution: Do not exceed 8.6 bar (125 psig) air supply pressure.
P820/P830 METAL
FULL-STROKE
PTFE
-
FITTED
Example:
Flow rates indicated on chart were determined by pumping water. For optimum life and performance, pumps
should be specified so that daily operation parameters will fall in the center of the pump's performance curve.
Caution: Do not exceed
8.6 bar (125 psig) air supply pressure.
PERFORMANCE
WIL-11590-E-04 11
P820/830 Bolted Metal
SECTION
5
P820/P830 METAL
SUCTION LIFT
CAPABILITY
SUCTION LIFT CAPABILITY
WIL-11590-E-04 12
P820/830 Bolted Metal
SECTION
6
CAUTION:
Location
Access:
Air Supply:
Solenoid Operation:
Muffler:
Elevation:
Piping:
NOTE:
CAUTION:
CAUTION:
CAUTION:
®
SUGGESTED INSTALLATION, OPERATION, MAINTENANCE
AND TROUBLESHOOTING
WIL-11590-E-04 13
P820/830 Bolted Metal
NOTE:
Air-Operated Pumps:
Operation
Maintenance and Inspections
SUGGESTED INSTALLATION, OPERATION, MAINTENANCE
AND TROUBLESHOOTING
WIL-11590-E-04 14
P820/830 Bolted Metal
Troubleshooting
Pump will not run or runs slowly.
Pump runs, but little or no product flows.
Pump air valve freezes.
Air bubbles in pump discharge.
Product comes out air exhaust.
SUGGESTED INSTALLATION, OPERATION, MAINTENANCE
AND TROUBLESHOOTING
WIL-11590-E-04 15
P820/830 Bolted Metal
SECTION
7
PUMP DISASSEMBLY
Tools Required:
CAUTION:
NOTE:
NOTE:
Step 1
Step 2
Step 3
DISASSEMBLY / REASSEMBLY
WIL-11590-E-04 16
P820/830 Bolted Metal
Step
4
Step
5
Step
6
NOTE:
Step
7
Step
8
Step
9
DISASSEMBLY / REASSEMBLY
WIL-11590-E-04 17
P820/830 Bolted Metal
Step 1
0
Step
11
Step
1
2
DISASSEMBLY / REASSEMBLY
WIL-11590-E-04 18
P820/830 Bolted Metal
AIR VALVE DISASSEMBLY
Tools Required:
CAUTION:
NOTE:
NOTE:
Step 1
Step 2
Step 3
DISASSEMBLY / REASSEMBLY
WIL-11590-E-04 19
P820/830 Bolted Metal
Step
4
Step
5
Step
6
NOTE:
Step
7
Step
8
NOTE:
DISASSEMBLY / REASSEMBLY
WIL-11590-E-04 20
P820/830 Bolted Metal
Step
9
DISASSEMBLY / REASSEMBLY
/
