5985-00-761-1980 COUPLER,ANTENNA Index 4010-00-761-1982 SECURING RIG

National Stock Number:
4820-00-761-1981

Federal Supply Class:
4820

National Item Identification Number:
007611981

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:
177109319857ELECTRIC HEATER CO
17723-719857ELECTRIC HEATER CO
HSRV-119857ELECTRIC HEATER CO
HSRV-1-8519857ELECTRIC HEATER CO


Techincal Specification:
END CONNECTION QUANTITY2
BODY STYLEANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
FIRST END CONNECTION TYPEUNTHREADED INTERNAL PIPE
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES
FIRST END STYLE DESIGNATORPLAIN
FLOW CONTROL DEVICEPOPPET
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY SEAT
MATERIALCOPPER ALLOY BODY
MATERIALSTEEL CORROSION RESISTING STEM
MEDIA FOR WHICH DESIGNEDWATER, FRESH
OPENING PRESSURE SETTING80.0 POUNDS PER SQUARE INCH
SECOND END CONNECTION TYPEUNTHREADED INTERNAL PIPE
SECOND END STYLE DESIGNATORPLAIN
SECOND END NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
TEMP RATING180.0 FAHRENHEIT
TEMP ADJUSTABILITYNOT ADJUSTABLE
TEMP CONTROL DEVICE TYPEFUSIBLE


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