4730-00-145-5146 COUPLING,FITTING TU Index 4820-00-145-5148 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-145-5147

Federal Supply Class:
4820

National Item Identification Number:
001455147

Description:
VALVE,RELIEF,PRESSURE AND TEMPER

Detail:
A VALVE DESIGNED TO RELEASE UNDER EXCESSIVE PRESSURE AND/OR EXCESSIVE TEMPERATURE BY OPENING AT A PREDETERMINED PRESSURE AND/OR TEMPERATURE. THERMOSTATICALLY OPERATED VALVES CLOSE WHEN THE PRESSURE IS RELIEVED OR THE TEMPERATURE IS REDUCED. FUSIBLE PLUG VALVES REQUIRE REPLACEMENT OF THE PLUG. SEE ALSO VALVE, SAFETY RELIEF AND VALVE, REGULATING. TEMPERATURE.


Manufacturer Information:
P56-344-40091816CIRCOR AEROSPACE, INC.


Techincal Specification:
END CONNECTION QUANTITY2
BODY STYLESTRAIGHT THRU
FIRST END CONNECTION TYPETHREADED EXTERNAL GAS CYLINDER
FIRST END STYLE DESIGNATORGASKET SEAL
FIRST END THREAD DIRECTIONRIGHT-HAND
FLOW CONTROL DEVICEPOPPET
MATERIALSTEEL COMP 303 BODY
SECOND END CONNECTION TYPERAISED FACE FLANGE
SECOND END RAISED FACE DIAMETER0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END FLANGE SHAPE STYLEHEXAGON W/O BOLT HOLES
SECOND END FLANGE THICKNESS0.175 INCHES MINIMUM AND 0.205 INCHES MAXIMUM
SECOND END STYLE DESIGNATORPLAIN
SECOND END WIDTH ACROSS FLATS0.500 INCHES NOMINAL
SPECIAL FEATURESRAISED FACE SLOTTED EIGHT PLACES
TEMP ADJUSTABILITYNOT ADJUSTABLE
TEMP RATING-70.0 FAHRENHEIT AND 500.0 FAHRENHEIT


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