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National Stock Number:
4820-00-490-5456
Federal Supply Class:
4820
National Item Identification Number:
004905456
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:
| 559B2M12 | 91816 | CIRCOR AEROSPACE, INC. | | QB200192-10 | 19315 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS |
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Techincal Specification:
| CONNECTION STYLE | PLAIN (PIPE) FIRST END | | CONNECTION TYPE | THREADED EXTERNAL PIPE FIRST END | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | POPPET | | OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MATERIAL | COPPER ALLOY OVERALL | | MAXIMUM OPERATING TEMP | -40.0 FAHRENHEIT FIRST RESPONSE | | MAXIMUM OPERATING TEMP | 250.0 FAHRENHEIT SECOND RESPONSE | | MEDIA FOR WHICH DESIGNED | ACETYLENE SECOND RESPONSE | | MEDIA FOR WHICH DESIGNED | AIR FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | AMMONIA, GASEOUS THIRD RESPONSE | | MEDIA FOR WHICH DESIGNED | HYDROGEN FIFTH RESPONSE | | MEDIA FOR WHICH DESIGNED | REFRIGERANT 12 FOURTH RESPONSE | | NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.250 INCHES FIRST END | | OPENING PRESSURE SETTING | 12.0 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | POP-OFF TYPE | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. | | THREAD DIRECTION | RIGHT-HAND FIRST END | | THREAD SERIES DESIGNATOR | NPT FIRST END |
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