5910-00-839-4308 CAPACITOR,FIXED,ELECTROLYTIC Index 5905-00-839-4320 RESISTOR,VARIABLE,WIRE WOUND,PRE

National Stock Number:
4820-00-839-4313

Federal Supply Class:
4820

National Item Identification Number:
008394313

Description:
VALVE,FIRE CHECK

Detail:
A VALVE WHICH WORKS ON A THERMOSTATIC PRINCIPLE TO STOP AND EXTINGUISH BACKFIRE IN GAS-AIR PIPELINES BY UTILIZING THE HEAT GENERATED BY THE FIRE TO ACTUATE THE MECHANISM WHICH CLOSES THE VALVE. IT ALSO CONTAINS A SWING CHECK ON THE INLET CONNECTION WHICH CLOSES IMMEDIATELY UPON SHOCK CAUSED BY BACKFIRE, SHUTTING OFF THE GAS-AIR MIXTURE. IT IS DESIGNED FOR INSTALLATION IN A PIPELINE TO FEED GAS-AIR MIXTURES TO BURNERS AND THE LIKE.


Manufacturer Information:
177LH81718OPW FUELING COMPONENTS INC. DIV OPW FUELING COMPONENTS


Techincal Specification:
END CONNECTION QUANTITY2
BODY STYLESTRAIGHT THRU
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FIRST END STYLE DESIGNATORPLAIN
FIRST END NOMINAL PIPE SIZE ACCOMMODATED2.500 INCHES
FIRST END THREAD DIRECTIONRIGHT-HAND
FLOW CONTROL DEVICEDISK, FLAT, TOP AND BOTTOM GUIDED
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY SEAT
MATERIALCOPPER ALLOY STEM
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNEDANY ACCEPTABLE
SECOND END CONNECTION TYPETHREADED EXTERNAL PIPE
SECOND END NOMINAL PIPE SIZE ACCOMMODATED3.000 INCHES
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END STYLE DESIGNATORPLAIN
SECOND END THREAD DIRECTIONRIGHT-HAND
TEMP RATING165.0 FAHRENHEIT


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