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National Stock Number:
4820-01-005-3246
Federal Supply Class:
4820
National Item Identification Number:
010053246
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:
| 029-001537 | 26916 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 559B-4MP-20 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| DISK LOADING METHOD | SPRING | | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST ENDTHREADED INTERNAL PIPE 2ND END | | CONNECTION STYLE | PLAIN (PIPE) 2ND END | | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 1ST END | | FLOW CONTROL DEVICE | POPPET | | MATERIAL | COPPER ALLOY OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | GAS, INERT 3RD RESPONSE | | MEDIA FOR WHICH DESIGNED | HYDROGEN 4TH RESPONSE | | MEDIA FOR WHICH DESIGNED | REFRIGERANT 12 5TH RESPONSE | | MEDIA FOR WHICH DESIGNED | ACETYLENE 1ST RESPONSE | | MEDIA FOR WHICH DESIGNED | AIR 2ND RESPONSE | | NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES 1ST END | | NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES 2ND END | | NOMINAL THREAD SIZE | 0.500 INCHES 2ND END | | NOMINAL THREAD SIZE | 0.500 INCHES 1ST END | | OPENING PRESSURE SETTING | 20.0 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | INLINE TYPE | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. | | THREAD DIRECTION | RIGHT-HAND 1ST END | | THREAD DIRECTION | RIGHT-HAND 2ND END | | THREAD SERIES DESIGNATOR | NPT 2ND END | | THREAD SERIES DESIGNATOR | NPT 1ST END |
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