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INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
AUTOMATIC AIR RELEASE VALVES
GRP33−30LA
GRP33−30HA
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
GORMAN-RUPP OF CANADA LIMITED
WITH PARTS LIST
MODELS
GRP33−30LB
GRP33−30HB
www.grpumps.com
D
ST. THOMAS, ONTARIO, CANADA
e
2008 The Gorman-Rupp Company
OM−06222−AR01
November 18, 2008
Rev. B 03-31-11
Printed in U.S.A.
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Summary of Contents for GR GRP33-30LA
- Page 1 OM−06222−AR01 November 18, 2008 Rev. B 03-31-11 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST AUTOMATIC AIR RELEASE VALVES MODELS GRP33−30LA GRP33−30LB GRP33−30HA GRP33−30HB THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. 2008 The Gorman-Rupp Company...
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Page 2: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ..........PAGE I −... - Page 3 OM−06222 INTRODUCTION Thank You for purchasing a Gorman-Rupp Auto- The following are used to alert maintenance per- matic Air Release Valve. Read this manual careful- sonnel to procedures which require special atten- ly to learn how to safely install and operate your tion, to those which could damage equipment, and equipment.
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Page 4: Safety − Section A
OM−06222 SAFETY − SECTION A This information applies to Gorman- Rupp Automatic Air Release Valves. Re- fer to the manual accompanying the pump and power source before at- If the application involves volatile, cor- tempting to begin operation. rosive or hazardous liquids, wear pro- Because pump installations are seldom tective safety equipment, such as identical, this manual cannot possibly... -
Page 5: Installation − Section Bpage B
OM−06222 INSTALLATION − SECTION B Review all SAFETY information in Section A. factory. Before installation, inspect the valve for damage which may have occurred during ship- Since pump installations are seldom identical, this ment. Check as follows: section offers only general recommendations and a. - Page 6 OM−06222 INSTALL AIR RELEASE VALVE DISCHARGE PIPE IN HORIZONTAL POSITION STREET TEE DISCHARGE CLEANOUT CHECK VALVE PLUG 1" UNION 90_ ELBOW PUMP DISCHARGE SUPPORT BRACKET (REQUIRED) BLEED LINE 1.25" (31 MM) DIA. SELF-PRIMING MIN. (CUSTOMER FURNISHED) CENTRIFUGAL PUMP DO NOT EXTEND BELOW PUMP ON LIQUID LEVEL.
- Page 7 OM−06222 A bypass line returned to a wet well could Any shut-off valve installed in a bypass be drawn into the pump suction inlet, line must not be left closed during oper- which could result in damage to the sys- ation.
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Page 8: Operation − Section Cpage C
OM−06222 OPERATION − SECTION C THEORY OF OPERATION the upper valve body (at a controlled rate to pre- vent slamming of the plunger and/or valve chatter) and onto the top of the plunger chamber dia- Review all SAFETY information in Section A. phragm, compressing the plunger rod spring, closing the valve (Figure C−2). -
Page 9: Leakage
OM−06222 when the pump is shut down. This happens most pumped, and could damage the valve often in a closed system where the Air Release and/or injure personnel. Valve is isolated in the piping system by suction For most applications, no adjustment of the Air Re- and discharge flap valves. -
Page 10: Troubleshooting − Section Dpage D
OM−06222 TROUBLESHOOTING − SECTION D Review all SAFETY information in Section A. Before attempting to service the Air Re- lease Valve: 1. Familiarize yourself with this manual. 2. Disconnect or lock out the power source to the pump or isolate the Air Release Valve to ensure that it will re- main inoperative. - Page 11 OM−06222 man-Rupp distributor or the Gorman-Rupp Com- PUMP PREVENTIVE MAINTENANCE pany. The following preventive maintenance information Record keeping is an essential component of a applies to self-priming centrifugal pumps only. Un- good preventive maintenance program. Changes der normal conditions, the Air Release Valve re- in suction and discharge gauge readings (if so quires no preventive or routine maintenance.
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Page 12: Maintenance And Repair − Section Epage E
OM−06222 MAINTENANCE AND REPAIR − SECTION E UNDER NORMAL CONDITIONS, THESE AUTOMATIC AIR RELEASE VALVES REQUIRE NO MAINTENANCE OR REPAIR DUE TO THEIR RUGGED DESIGN. HOWEVER, IF IT BECOMES NECESSARY TO REPLACE PARTS, FOLLOW THE INSTRUCTIONS IN THIS SECTION, WHICH ARE KEYED TO FIGURE E−2 AND THE ACCOMPANYING PARTS LIST. - Page 13 OM−06222 PARTS PAGE SECTION DRAWING Figure E−2. GRP33−30LA, GRP33−30LB, GRP33−30HA and GRP33−30HB Air Release Valves PAGE E − 2 MAINTENANCE & REPAIR...
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Page 14: Parts List
OM−06222 PARTS LIST GRP33−30LA, GRP33−30LB, GRP33−30HA and GRP33−30HB Air Release Valves This Parts List Represents Bill of Material Issue 1 For These Valves NOTE: REPLACEMENT PART AVAILABILITY IS LIMITED TO THE ELASTOMERIC COMPONENTS AVAILABLE IN THE REPAIR KITS ITEM PART MATL PART NAME NUMBER... - Page 15 OM−06222 AIR RELEASE VALVE DISASSEMBLY AND REASSEMBLY Review all SAFETY information in Section A. If a manual shut-off valve is installed in the bypass line to facilitate service of Under normal conditions, Gorman-Rupp Automat- the Air Release Valve, be sure to open ic Air Release Valves require no maintenance due the shut-off valve after servicing the Air to their rugged design.
- Page 16 OM−06222 or damage and replace as necessary. Install the U-ring (11) in the lower valve body with the cup side toward the bottom of the valve body. The chamber between the upper and lower valve bodies is filled with propylene glycol anti-freeze, which could become contami- nated with the product being pumped if The U-ring (11) must be installed in the...
- Page 17 OM−06222 capscrew into the threaded hole in the plunger and Install the cotter pin (8) through the holes in the use the capscrew to hold the plunger in position lower valve body and through the castelation in the while seating the diaphragm around the plunger adjustable restrictor.
- Page 18 For U.S. and International Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419−755−1280 International: +1−419−755−1352 For Canadian Warranty Information, Please Visit www.grcanada.com/warranty or call: 519−631−2870 THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA...
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