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National Stock Number:
4820-00-973-8345
Federal Supply Class:
4820
National Item Identification Number:
009738345
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:
| 381-1040P7 | 49956 | RAYTHEON COMPANY | | 559B-1M-4 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| CONNECTION STYLE | PLAIN (PIPE) 1ST END | | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY OVERALL | | MAXIMUM OPERATING TEMP | -40.0 FAHRENHEIT 1ST RESPONSE | | MAXIMUM OPERATING TEMP | 250.0 FAHRENHEIT 2ND RESPONSE | | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | ACETYLENE 2ND RESPONSE | | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE | | MEDIA FOR WHICH DESIGNED | AMMONIA, GASEOUS 3RD RESPONSE | | MEDIA FOR WHICH DESIGNED | HYDROGEN 5TH RESPONSE | | MEDIA FOR WHICH DESIGNED | REFRIGERANT 12 4TH RESPONSE | | NOMINAL PIPE SIZE ACCOMMODATED | 0.125 INCHES 1ST END | | NOMINAL THREAD SIZE | 0.125 INCHES 1ST END | | OPENING PRESSURE SETTING | 4.0 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | POP-OFF TYPE | | STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. | | THREAD DIRECTION | RIGHT-HAND 1ST END | | THREAD SERIES DESIGNATOR | NPT 1ST END | | VALVE OPERATION METHOD | AUTOMATIC |
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