Model: EN20S

Restrictor Check Valve

Properties:

Thread Direction
Right-hand all ends
Connection Style
Plain, optional end (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Mounting Position
Horizontal
Maximum Operating Pressure
5000.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Material
Rubber polymethylene-perfluoroalkylene class fkm stem
Material
Steel body
Material
Stainless steel flow control device
Style Designator
Straight thru
Supplementary Features
Flow control device: needle
Thread Series Designator
Nptf all ends
NSN
4820-01-499-6463
Part Number
EN20S
Description
Valve,restrictor Check
CAGE
92029

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Part EN20S NSN 4820-01-499-6463

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20520
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:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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