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NSN 4820-01-291-8539

Expansion Bypass Valve

About this product

Bronze, mil-b-16541 body material, straight thru body style, plain face flange first end connection type, first end style designator: plain.

Manufacturer part number 68549-01 for national stock number 4820012918539.

Datasheet

  • Product description

    System Pressure Regulating Valve NSN 4820-01-291-8539.

  • MPN or Model

    68549-01

  • Schedule B
    8481.80.9015 (Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    679 lb
  • Body Material
    Bronze, mil-b-16541
  • Body Style
    Straight thru
  • First End Connection Type
    Plain face flange
  • First End Style Designator
    Plain
  • First End Flange Shape Style
    Round w/ bolt holes
  • First End Flange Thickness
    1.310 inches
  • First End Bolt Hole Quantity
    14
  • First End Bolt Hole Diameter
    0.688 inches
  • First End Bolt Circle Diameter
    11.062 inches
  • Second End Relationship With First End
    Identical
  • Face To Face Distance
    25.790 inches
  • Flow Control Device
    Disk
  • End Connection Quantity
    2
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System Pressure Regulating Valve

A value designed to automatically maintain within close limits a predetermined pressure within a closed system regardless of the higher fluctuating or constant inlet pressure. The excess pressure is by-passed to the accumulator or reservoir in lieu of passing through the entire system. It is designed primarily for use in refrigeration and air conditioning systems. Excludes valve, regulating, fluid pressure and valve, calibrated flow.

Mechanic Bill explains Expansion Bypass Valve

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NSN 4820012918539

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
68549-01 Griswold Industries, Co.
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