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National Stock Number: 4820-00-397-7072
Federal Supply Class: 4820
National Item Identification Number: 003977072
Description: VALVE,SAFETY RELIEF
Detail: A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
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Manufacturer Information:
| 20WR1 1-2 | 77653 | ROSS VALVE MANUFACTURING COMPANY, INC. | | 800E1437 | 02413 | KERSEY / AMERICAN LAFRANCE A DIV OF FIGGIE INTERNATIONAL INC |
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Techincal Specification:
| ADJUSTABLE PRESSURE RANGE | +0.0 TO 650.0 POUNDS PER SQUARE INCH | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | INSIDE SPRING | | CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS | | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) ALL ENDS | | DISK LOADING METHOD | SPRING | | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL PIPE SIZE ACCOMMODATED | 1.500 INCHES FIRST END | | NOMINAL THREAD SIZE | 1.500 INCHES ALL ENDS | | STYLE DESIGNATOR | ANGLE | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD QUANTITY PER INCH | 11-1/2 ALL ENDS | | THREAD SERIES DESIGNATOR | NPT ALL ENDS | | VALVE OPERATION METHOD | AUTOMATIC |
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