Model: P20-383

Safety Relief Valve

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Valve Discharge Flow Rate
200.0 cubic feet per minute
Maximum Operating Temp
450.0 degrees fahrenheit single response
Connection Style
G50 external seat for gasket seal (boss) 1st end
Connection Style
External seat for gasket seal (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 1st end
Features Provided
Valve stem lock shield and pressure tight outlet side
Thready Qty Per Inch (tpi)
12 1st end
Adjustable Pressure Range
+47.0/+53.0 pounds per square inch
Maximum Operating Pressure
60.0 pounds per square inch single response
Thread Size
1.312 inches 1st end
Opening Pressure Setting
50.0 pounds per square inch
Outside Diameter Tube Accommodated
1.000 inches 1st end
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, alloy2024 federal specification all material responses
Media For Which Designed
Air single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625 military specification single treatment response
Style Designator
Straight thru
Thread Series Designator
Un 1st end
NSN
4820-00-191-6881
Part Number
P20-383
Description
Valve,safety Relief
CAGE
91816

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part P20-383 NSN 4820-00-191-6881

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
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:
ESD:
MMAC:
SX
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

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