4820-00-490-5456 VALVE,SAFETY RELIEF Index 4820-00-490-5460 VALVE,PLUG

National Stock Number:
4820-00-490-5457

Federal Supply Class:
4820

National Item Identification Number:
004905457

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.


Manufacturer Information:
559B-2M-3291816CIRCOR AEROSPACE, INC.
QB200192-1119315HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS
QB200192-1155974HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER TEST SYSTEMS DIV


Techincal Specification:
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALCOPPER ALLOY OVERALL
MAXIMUM OPERATING TEMP-40.0 FAHRENHEIT FIRST RESPONSE
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDACETYLENE SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, GASEOUS THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDHYDROGEN FIFTH RESPONSE
MEDIA FOR WHICH DESIGNEDREFRIGERANT 12 FOURTH RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END
NOMINAL THREAD SIZE0.250 INCHES FIRST END
OPENING PRESSURE SETTING32.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESPOP-OFF TYPE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPT FIRST END


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