4820-01-062-7384 VALVE,SAFETY RELIEF Index 4820-01-062-7386 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-062-7385

Federal Supply Class:
4820

National Item Identification Number:
010627385

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:
5159T-4TB-3091816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL(BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS SECOND END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE
MATERIALSTEEL COMP 303 BODY
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP-40.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDHELIUM SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDHYDROGEN FOURTH RESPONSE
MEDIA FOR WHICH DESIGNEDNITROGEN, GASEOUS FIFTH RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC THIRD RESPONSE
NOMINAL THREAD SIZE0.438 INCHES FIRST END
NOMINAL THREAD SIZE0.438 INCHES SECOND END
OPENING PRESSURE SETTING30.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SEAT ANGLE37.0 DEGREES FIRST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A FIRST END
THREAD CLASS3B SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD SERIES DESIGNATORUNF SECOND END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END


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