Model: 5231-B 300PSI

Safety Relief Valve

Special Features:

length 3.580 in. ; orifice dia. 0.250 in.; weight 0.85 lb. ; also suitable for 123 and 134a refrigerants and non-corrosive industrial fluids

Properties:

Thread Direction
Right-hand all ends
Flow Control Device
Piston
Disk Loading Method
Spring
Maximum Operating Temp
225.0 degrees fahrenheit single response
Minimum Operating Temp
-40.0 degrees fahrenheit
Connection Style
G42 flared (tube) 2nd end
Connection Style
G46b plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded external tube 2nd end
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
Thread Size
0.625 inches 2nd end
Opening Pressure Setting
270.0 pounds per square inch
Material
Copper alloy body
Media For Which Designed
Refrigerant 22 2nd response
Media For Which Designed
Refrigerant 500 3rd response
Media For Which Designed
Refrigerant 502 4th response
Media For Which Designed
Refrigerant 12 1st response
Thread Series Designator
Npt 1st end
Thread Series Designator
Unf 2nd end
NSN
4820-01-472-5101
Part Number
5231-B 300PSI
Description
Valve,safety Relief
CAGE
28193

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 5231-B 300PSI NSN 4820-01-472-5101

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:
A
ESD:
A
MMAC:
CRITL:
X

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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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