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National Stock Number:
4820-01-015-1297
Federal Supply Class:
4820
National Item Identification Number:
010151297
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:
| 1478-3-4IN300PSI | 94611 | DRESSER INDUSTRIES INC DRESSER MFG DIV |
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Techincal Specification:
| STYLE DESIGNATOR | ANGLE | | MATERIAL | COPPER ALLOY BODY | | COPPER ALLOY SEAT | | COPPER ALLOY STEM | | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH 1ST RESPONSE | | 300.0 POUNDS PER SQUARE INCH 2ND RESPONSE | | MAXIMUM OPERATING TEMP | 406.0 DEG FAHRENHEIT 1ST RESPONSE | | 406.0 DEG FAHRENHEIT 2ND RESPONSE | | CONNECTION TYPE | THREADED INTERNAL PIPE 1ST END | | THREADED EXTERNAL PIPE 2ND END | | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 1ST END | | PLAIN (PIPE) 2ND END | | NOMINAL PIPE SIZE ACCOMMODATED | 0.750 INCHES 1ST END | | 0.750 INCHES 2ND END | | THREAD DIRECTION | RIGHT-HAND 1ST END | | RIGHT-HAND 2ND END | | BONNET TYPE | INSIDE SPRING | | DISK LOADING METHOD | SPRING |
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