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NSN 4820-01-075-7231

Lift-check Valve

About this product

Equalizer furnished.

Manufacturer part number 803-2177141-452 for national stock number 4820010757231.

Datasheet

  • Product description

    Lift-check Valve NSN 4820-01-075-7231.

  • MPN or Model

    803-2177141-452

  • Schedule B
    8481.30.2090 (Check valves of steel)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Pipe Size Accommodated
    4.000 inches all ends
  • Flow Control Device
    Disk
  • Bonnet Type
    Inside spring
  • Bonnet Attachment Method
    Integral
  • Disk Loading Method
    Weight
  • Maximum Operating Temp
    775.0 degrees fahrenheit single response
  • Connection Style
    Beveled (pipe) all ends
  • Valve Operation Method
    Automatic
  • Connection Type
    Butt weld pipe all ends
  • Mounting Position
    Horizontal or vertical
  • Maximum Operating Pressure
    900.0 pounds per square inch single response
  • Material
    Steel
  • Material Specification
    Astm a182, grade f1 assn standard single material response
  • Style Designator
    Straight thru
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Lift-check Valve

A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.

Mechanic Bill explains Lift-check Valve

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NSN 4820010757231

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
803-2177141-452 Naval Sea Systems Command
810-2177141-452 Naval Sea Systems Command
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