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NSN 4820-00-839-4313

Fire Check Valve

About this product

Bronze body material, a1 straight thru body style, bronze stem material, tempurature rating: 165.0 degrees fahrenheit.

Manufacturer part number 177LH for national stock number 4820008394313.

Datasheet

  • Product description

    Fire Check Valve NSN 4820-00-839-4313.

  • MPN or Model

    177LH

  • Schedule B
    8481.80.9050 (Other taps, cocks, valves, etc., nesoi)
  • NMF (National Motor Freight)
    050855 - Cocks R Valves Etc Bbc
  • Body Material
    Bronze
  • Body Style
    A1 straight thru
  • Stem Material
    Bronze
  • Tempurature Rating
    165.0 degrees fahrenheit
  • Media For Which Designed
    Any acceptable
  • First End Connection Type
    Threaded internal pipe
  • First End Style Designator
    Plain
  • First End Pipe Size Accommodated
    2.500 inches
  • First End Thread Direction
    Right-hand
  • Second End Relationship With First End
    Not identical
  • Second End Connection Type
    Threaded external pipe
  • Second End Style Designator
    Plain
  • Second End Pipe Size Accommodated
    3.000 inches
  • Second End Thread Direction
    Right-hand
  • Seat Material
    Bronze
  • Flow Control Device
    Disk, flat, top and bottom guided
  • Flow Control Device Material
    Rubber, buna-n
  • End Connection Quantity
    2
Fire Check Valve

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.

Mechanic Bill explains Fire Check Valve

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NSN 4820008394313

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
177LH Opw Fueling Components Inc.
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