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 THREAD DIRECTIONRIGHT-HAND
FIRST END NOMINAL PIPE SIZE ACCOMMODATED2.500 INCHES
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 STYLE DESIGNATORPLAIN
SECOND END THREAD DIRECTIONRIGHT-HAND
SECOND END NOMINAL PIPE SIZE ACCOMMODATED3.000 INCHES
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
TEMP RATING165.0 FAHRENHEIT


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