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National Stock Number: 4820-00-202-5503
Federal Supply Class: 4820
National Item Identification Number: 002025503
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:
FIG2501 | 14959 | CRANE CO DIV VALVE DIV |
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Techincal Specification:
CONNECTION STYLE | PLAIN (PIPE) 2ND END | CONNECTION TYPE | THREADED EXTERNAL PIPE 2ND END | CONNECTION TYPE | THREADED INTERNAL PIPE 1ST END | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 1ST END | DISK LOADING METHOD | SPRING | FEATURES PROVIDED | VALVE STEM LOCK SHIELD | FLOW CONTROL DEVICE | DISK | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-390,ALLOYB5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODYQQ-C-390,ALLOYB5/D/ FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICEQQ-C-390,ALLOYB5/D/ FED SPEC SINGLE MATERIAL RESPONSE SEAT | MATERIAL | COPPER ALLOY FLOW CONTROL DEVICE | MATERIAL | COPPER ALLOY SEAT | MATERIAL | COPPER ALLOY BODY LINING | MATERIAL | STEEL STEM | NOMINAL PIPE SIZE ACCOMMODATED | 1.500 INCHES 1ST END | NOMINAL PIPE SIZE ACCOMMODATED | 1.500 INCHES 2ND END | NOMINAL THREAD SIZE | 1.500 INCHES 1ST END | NOMINAL THREAD SIZE | 1.500 INCHES 2ND END | OPENING PRESSURE SETTING | 50.0 POUNDS PER SQUARE INCH | STYLE DESIGNATOR | ANGLE | THREAD DIRECTION | RIGHT-HAND 1ST END | THREAD DIRECTION | RIGHT-HAND 2ND END | THREAD SERIES DESIGNATOR | NPT 1ST END | THREAD SERIES DESIGNATOR | NPT 2ND END | VALVE DISCHARGE FLOW RATE | 646.0 POUNDS PER HOUR | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
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