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NSN 4820-01-435-1021

Flow Switching Valve Block

About this product

7.688 inches flange diameter, outside screw-yoke bonnet type, bolted bonnet attachment method, bolt hole quantity: 8.

Manufacturer part number PI-NB2502 4.00I for national stock number 4820014351021.

Datasheet

  • Product description

    Gate Valve NSN 4820-01-435-1021.

  • MPN or Model

    PI-NB2502 4.00I

  • Schedule B
    8481.80.1060 (Gate type taps, cocks and valves of copper, hand operated, having a pressure rating of 850 kpa or over)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Flange Diameter
    7.688 inches
  • Bonnet Type
    Outside screw-yoke
  • Bonnet Attachment Method
    Bolted
  • Bolt Hole Quantity
    8
  • End Application
    Nimitz class cvn
  • Valve Operation Method
    Manual
  • Connection Type
    Flange, round w/holes
  • Valve Size
    4.000 inches
  • Stem Type
    Nonrising
  • Face To Face Distance
    6.750 inches
  • Flange Face Design
    Plain
  • Inlet Relationship With Outlet
    Identical
  • Pressure Class
    250.0 pounds per square inch
  • Material
    Nickel alloy stem
  • Material Specification
    Qq-n-288, comp b federal specification single material response seat
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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 4820014351021

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
PI-NB2502 4.00I Pima Valve, Inc.
PI-NB2502 4IN Pima Valve, Inc.
PI-NB2502 Pima Valve, Inc.
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