1-321-802-5889

NSN 4820-01-621-8959

Relief Valve

About this product

Brass body material, angle give "adqm" and "adqn" only when flanged both ends body style, 250.0 degrees fahrenheit tempurature rating, first end connection type: threaded internal pipe.

Manufacturer part number ST25-1A200 for national stock number 4820016218959.

Datasheet

  • Product description

    Pressure And Temperature Relief Valve NSN 4820-01-621-8959.

  • MPN or Model

    ST25-1A200

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Body Material
    Brass
  • Body Style
    Angle give "adqm" and "adqn" only when flanged both ends
  • Tempurature Rating
    250.0 degrees fahrenheit
  • First End Connection Type
    Threaded internal pipe
  • First End Style Designator
    Socket
  • First End Pipe Size Accommodated
    0.25 inches
  • First End Thread Direction
    Right-hand
  • Second End Relationship With First End
    Not identical
  • Flow Control Device
    Poppet
  • Flow Control Device Material
    Rubber, synthetic
  • End Connection Quantity
    2
  • Adjustable Pressure Range
    +25.0 to 350.0 pounds per square inch
  • Tempurature Adjustability
    Not adjustable
  • First End Thread Series Designator
    Npt
  • Part Name Assigned By Controlling Agency
    Air safety valve
Pressure And Temperature Relief Valve

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.

Mechanic Bill explains Relief Valve

Pricing and Availability

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NSN 4820016218959

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST25-1A200 Control Devices, Incorporated
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