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National Stock Number:
4820-00-883-2228
Federal Supply Class:
4820
National Item Identification Number:
008832228
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:
| A244974 | 32537 | JOY GLOBAL UNDERGROUND MINING LLC | | A244974 | 83179 | JOY MFG CO AIR POWER GROUP MICHIGAN CITY PLANT |
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Techincal Specification:
| BONNET TYPE | INSIDE SPRING | | BONNET ATTACHMENT METHOD | THREADED | | CONNECTION TYPE | THREADED EXTERNAL PIPE SECOND END | | CONNECTION TYPE | THREADED INTERNAL PIPE FIRST END | | CONNECTION STYLE | PLAIN (PIPE) SECOND END | | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) FIRST END | | DISK LOADING METHOD | SPRING | | FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE | | FLOW CONTROL DEVICE | POPPET | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL PIPE SIZE ACCOMMODATED | 0.750 INCHES SECOND END | | NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.750 INCHES SECOND END | | NOMINAL THREAD SIZE | 1.000 INCHES FIRST END | | OPENING PRESSURE SETTING | 140.0 POUNDS PER SQUARE INCH | | STYLE DESIGNATOR | ANGLE | | THREAD DIRECTION | RIGHT-HAND FIRST END | | THREAD DIRECTION | RIGHT-HAND SECOND END | | THREAD QUANTITY PER INCH | 11-1/2 FIRST END | | THREAD QUANTITY PER INCH | 14 SECOND END | | THREAD SERIES DESIGNATOR | NPT FIRST END | | THREAD SERIES DESIGNATOR | NPT SECOND END | | VALVE OPERATION METHOD | AUTOMATIC |
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