3020-01-422-7135 SPROCKET WHEEL Index 4820-01-422-7137 VALVE,CHECK

National Stock Number:
4820-01-422-7136

Federal Supply Class:
4820

National Item Identification Number:
014227136

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:
538-1260-01-026840HALE PRODUCTS, INC.
538-1261-01-026840HALE PRODUCTS, INC.
TRV17026840HALE PRODUCTS, INC.


Techincal Specification:
BODY STYLEANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
END CONNECTION QUANTITY2
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FIRST END STYLE DESIGNATORPLAIN
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD SERIES DESIGNATORNPT
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.125 INCHES
FIRST END NOMINAL THREAD SIZE0.125 INCHES
MEDIA FOR WHICH DESIGNEDWATER, FRESH
SECOND END CONNECTION TYPETHREADED EXTERNAL PIPE
SECOND END NOMINAL PIPE SIZE ACCOMMODATED1.250 INCHES
SECOND END NOMINAL THREAD SIZE1.250 INCHES
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END STYLE DESIGNATORPLAIN
SECOND END THREAD DIRECTIONRIGHT-HAND
SECOND END THREAD SERIES DESIGNATORNPT
TEMP RATING170.0 FAHRENHEIT
TEMP ADJUSTABILITYNOT ADJUSTABLE


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