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NSN 4820-01-203-2176

Velocity Fuse

About this product

Disk flow control device, inside spring bonnet type, bolted bonnet attachment method, disk loading method: spring.

Manufacturer part number 20129R91M for national stock number 4820012032176.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-203-2176.

  • MPN or Model

    20129R91M

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    40 lb
  • Flow Control Device
    Disk
  • Bonnet Type
    Inside spring
  • Bonnet Attachment Method
    Bolted
  • Disk Loading Method
    Spring
  • Valve Operation Method
    Automatic
  • Valve Size
    3.000 inches
  • Adjustable Pressure Range
    +187.0/+210.0 pounds per square inch
  • Maximum Operating Pressure
    210.0 pounds per square inch single response
  • Criticality Code Justification
    Zzzy
  • Material
    Nickel alloy 400 packing
  • Reference Number Differentiating Characteristics
    Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
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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 4820012032176

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
20129R91M Anderson Greenwood Lp
20129ASSYR91M Anderson Greenwood Lp
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