Model: 38

Check Valve

Properties:

Flow Control Device
Disk
Disk Loading Method
Weight
Bolt Hole Quantity
4 1st end
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Connection Type
Flange 1st end
Mounting Position
Horizontal
Maximum Operating Pressure
150.0 pounds per square inch 1st response
Maximum Operating Pressure
250.0 pounds per square inch 2nd response
Outside Diameter
6.000 inches 1st end
Face To Face Distance
8.000 inches
Thickness
0.500 inches 1st end
Bolt Hole Diameter
0.750 inches 1st end
Bolt Circle Diameter
4.750 inches 1st end
Flange Face Design
Plain 1st end
Material
Copper alloy flow control device
Material
Copper alloy seat
Material
Copper alloy body
Material Specification
Qq-c-390, alloy d4 federal specification single material response body
Material Specification
Qq-c-390, alloy d4 federal specification single material response flow control device
Material Specification
Qq-c-390, alloy d4 federal specification single material response seat
Media For Which Designed
Steam 1st response
Media For Which Designed
Water-oil-gas 2nd response
Style Designator
Straight thru
NSN
4820-00-689-3076
Part Number
38
Description
Valve,check
CAGE
14959

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 38 NSN 4820-00-689-3076

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over

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