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NSN 4820-01-373-5208

Flow Switching Valve Block

About this product

19.000 inches flange diameter, inside screw bonnet type, bolted bonnet attachment method, bolt hole quantity: 12.

Manufacturer part number F-639-31 12IN for national stock number 4820013735208.

Datasheet

  • Product description

    Gate Valve NSN 4820-01-373-5208.

  • MPN or Model

    F-639-31 12IN

  • Schedule B
    8481.80.3010 (Gate type taps, cocks and valves of iron, hand operated)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Flange Diameter
    19.000 inches
  • Bonnet Type
    Inside screw
  • Bonnet Attachment Method
    Bolted
  • Bolt Hole Quantity
    12
  • Valve Operation Method
    Manual
  • Connection Type
    Flange, round w/holes
  • Valve Size
    12.000 inches
  • Maximum Operating Pressure And Media For Which Designed
    250.0 pounds per square inch water-oil-gas
  • Stem Type
    Nonrising
  • Maximum Operating Tempurature And Media For Which Designed
    550.0 degrees fahrenheit water-oil-gas
  • Face To Face Distance
    14.000 inches
  • Flange Face Design
    Plain
  • Inlet Relationship With Outlet
    Identical
  • Material
    Silicon stem
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Gate Valve

A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.

Mechanic Bill explains Flow Switching Valve Block

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NSN 4820013735208

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
F-639-31 12IN Nibco Inc
F-639-31 12IN Northern Indiana Business Services
F-639-31 12IN Nibco Inc
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