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NSN 4820-00-136-4569

Velocity Fuse

About this product

Pop-off type.

Manufacturer part number 559B-2M-2 for national stock number 4820001364569.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-136-4569.

  • MPN or Model

    559B-2M-2

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Pipe Size Accommodated
    0.250 inches 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    -40.0 degrees fahrenheit 1st response250.0 degrees fahrenheit 2nd response
  • Connection Style
    Plain (pipe) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external pipe 1st end
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.250 inches 1st end
  • Opening Pressure Setting
    2.0 pounds per square inch
  • Material
    Steel body
  • Media For Which Designed
    Hydrogen 5th response
  • Style Designator
    Straight through note: to be used for valve bodies of one section only.
  • Thread Series Designator
    Npt 1st end
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Safety Relief Valve

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Mechanic Bill explains Velocity Fuse

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NSN 4820001364569

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
559B-2M-2 Circor Aerospace, Inc.
Stock Check
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