GORMAN-RUPP PUMPS GRP33-30 Installation, Operation And Maintenance Manual Download Page 22

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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

MANSFIELD, OHIO

GORMAN-RUPP OF CANADA LIMITED

ST. THOMAS, ONTARIO, CANADA

Summary of Contents for GRP33-30

Page 1: ...NY D MANSFIELD OHIO www gormanrupp com GORMAN RUPP OF CANADA LIMITED D ST THOMAS ONTARIO CANADA Printed in U S A e2006 The Gorman Rupp Company INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS...

Page 2: ...SECTION C PAGE C 1 THEORY OF OPERATION PAGE C 1 ADJUSTMENT PAGE C 1 LEAKAGE PAGE C 2 TROUBLESHOOTING SECTION D PAGE D 1 MAINTENANCE AND REPAIR SECTION E PAGE E 1 AIR RELEASE VALVE DIMENSIONS PAGE E 1...

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Page 4: ...head If there are any questions regarding the pump or its application which are not covered in this man ual or in other literature accompanying this unit please contact your Gorman Rupp distributor or...

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Page 6: ...result of valve failure Before attempting to service the Air Re lease Valve 1 Familiarize yourself with this man ual 2 Disconnect or lock out the power source to the pump or isolate the Air Release Va...

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Page 8: ...eck for and tighten loose attaching hard ware at mating surfaces Air Release Valve Identification Air Release Valves are not readily identifiable by their individual part numbers There are however two...

Page 9: ...eads and should be con nected to a street tee to facilitate cleaning in case the Air Release Valve becomes clogged Connect a bleed line the same size as the valve outlet to the street tee so the line...

Page 10: ...anywhere in the air release piping it must be a full opening ball type valve to prevent plugging by solids Any shut off valve installed in a bypass line must not be left closed during oper ation A cl...

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Page 12: ...ng cycle Figure C 1 Figure C 1 Valve in Open Position When the pump is fully primed pressure resulting from flow through the valve compresses the inlet chamber diaphragm The barrier liquid on top of t...

Page 13: ...h designed into the valve This leakage path acts as a pressure relief to prevent the valve from becoming hydraulically locked when the pump is shut down This happens most often in a closed system wher...

Page 14: ...BABLE REMEDY VALVE FAILS TO CLOSE Inlet line outlet line or Air Release Valve clogged Clean lines or valve Low discharge head application Adjust restrictor to obtain full valve closure Pump not produc...

Page 15: ...atastrophic failure oc curs The appearance of wearing parts should also be documented at each inspection for comparison as well Also if records indicate that a certain part such as the seal fails at a...

Page 16: ...ION WHICH ARE KEYED TO FIGURE E 2 AND THE ACCOMPANYING PARTS LIST DIMENSIONS INCHES MILLIMETERS Figure E 1 Air Release Valve Dimensions Before installing the Automatic Air Re lease Valve check the che...

Page 17: ...OM 05850 G R MAINTENANCE REPAIR PAGE E 2 PARTSPAGE SECTION DRAWING Figure E 1 GRP33 30 GRP33 30A And GRP33 30B Air Release Valves...

Page 18: ...T AVAILABLE 14 8 COTTER PIN NOT AVAILABLE 1 9 ADJUSTABLE RESTRICTOR NOT AVAILABLE 1 10 RESTRICTOR O RING GRP33 30 S1556 1 RESTRICTOR O RING GRP33 30A 25154 020 1 RESTRICTOR O RING GRP33 30B 25158 520...

Page 19: ...liarize yourself with this man ual 2 Disconnect or lock out the power source to the pump or isolate the Air Release Valve to ensure that it will remain inoperative 3 Allow the pump and liquid to com p...

Page 20: ...cotter pin 8 Unscrew the restric tor from the lower valve body and remove the re strictor O ring 10 Air Release Valve Reassembly Clean the valve body plunger rod and all compo nent parts except the di...

Page 21: ...table restrictor into the hole in the lower valve body until the inboard end of the re strictor is just flush with the bore inside the lower valve body Install the cotter pin 8 through the holes in th...

Page 22: ...rpumps 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 MANSFI...