5305-00-207-8812 SCREW,MACHINE Index 5305-00-207-8824 SCREW,MACHINE

National Stock Number:
4820-00-207-8821

Federal Supply Class:
4820

National Item Identification Number:
002078821

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:
540 1-279227WATTS REGULATOR CO


Techincal Specification:
FLOW CONTROL DEVICEDISK, LIFT
TEMP ADJUSTABILITYNOT ADJUSTABLE
TEMP RATING210.0 DEG FAHRENHEIT
TEMP CONTROL DEVICE TYPEFUSIBLE
BODY STYLEANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
BODY MATERIALBRASS
SEAT MATERIALBRASS
FLOW CONTROL DEVICE MATERIALSTEEL, CORROSION RESISTING
END CONNECTION QUANTITY2
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FIRST END STYLE DESIGNATOROPTIONAL END
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END CONNECTION TYPETHREADED EXTERNAL PIPE
SECOND END STYLE DESIGNATORPLAIN
SECOND END NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES
SECOND END THREAD DIRECTIONRIGHT-HAND
MEDIA FOR WHICH DESIGNEDWATER, FRESH
BULB LENGTH4.000 INCHES NOMINAL
BULB DIAMETER0.812 INCHES NOMINAL
OPENING PRESSURE SETTING175.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE75.0 TO 175.0 POUNDS PER SQUARE INCH
SPECIAL FEATURESTEMPERATURE WATER RATING AT 50000-BTU/HR


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