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NSN 4820-01-124-9979

Velocity Fuse

About this product

Poppet flow control device, spring disk loading method, g46b plain (pipe) all ends connection style, valve operation method: automatic.

Manufacturer part number 559B-1M-8 for national stock number 4820011249979.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-124-9979.

  • MPN or Model

    559B-1M-8

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Thread Direction
    Right-hand all ends
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    250.0 degrees fahrenheit single response
  • Connection Style
    G46b plain (pipe) all ends
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external pipe all ends
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.125 inches all ends
  • Opening Pressure Setting
    8.0 pounds per square inch
  • Material
    Copper alloy body
  • Media For Which Designed
    Hydrogen 4th response
  • Surface Treatment
    Chromium
  • Style Designator
    Err-090
  • Thread Series Designator
    Npt all ends
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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 4820011249979

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
559B-1M-8 Honeywell International Inc.
559B-1M-8 Circor Aerospace, Inc.
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