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National Stock Number:
4820-01-499-5988
Federal Supply Class:
4820
National Item Identification Number:
014995988
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:
| 00077C | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION | | 00077C | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP | | 077C | 0AT62 | SIEMENS ENERGY, INC. | | 077C | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION | | 077C | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE | | 12498531 | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE | | PL12498531 PC NO 82 | 0AT62 | SIEMENS ENERGY, INC. | | PL12498531 PC NO 82 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION | | 453036R2 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION | | 453036R2 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP | | PL12498531 PC NO 82 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP | | PL12498531 PC NO 82 | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE | | 77C | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE | | PL12498531 | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE |
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Techincal Specification:
| ADJUSTABLE PRESSURE RANGE | +30.0 TO 100.0 POUNDS PER SQUARE INCH | | BONNET TYPE | INSIDE SPRING | | BONNET ATTACHMENT METHOD | THREADED | | CONNECTION STYLE | FLARE(TUBE) ALL ENDS | | CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | PISTON | | MATERIAL | STEEL OVERALL | | MEDIA FOR WHICH DESIGNED | LIQUID SECOND RESPONSE | | MEDIA FOR WHICH DESIGNED | OIL FIRST RESPONSE | | OPERATING PRESSURE | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | SPECIAL FEATURES | DRESSER RAND PURCHASES THIS VALVE (PC 82) AND SPRING (PC 81, P/N 407S-WS) FROM FULFLO AND ASSEMBLES AND SETS CRACKING PRESSURE AT THEIR FACTORY. DRESSER RAND REFUSED TO SPECIFY CRACKING PRESSURE SETTING. SIMILAR ITEM IS 4820-01-259-8850 WHICH USES THE SAME SPRING AND IS SET AT 55 PSI. | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | ANGLE |
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