Model: B083171-3

Safety Relief Valve

Special Features:

Pop-off type

Properties:

Pipe Size Accommodated
0.500 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Valve Discharge Flow Rate
75.0 cubic feet per minute
Maximum Operating Temp
-70.0 degrees fahrenheit 1st response450.0 degrees fahrenheit 2nd response
Connection Style
G46b plain (pipe) 1st end
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Adjustable Pressure Range
+60.0/+140.0 pounds per square inch
Adjustable Pressure Range
+60.0 to 140.0 pounds per square inch
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
Opening Pressure Setting
100.0 pounds per square inch
Material
Copper alloy
Media For Which Designed
Air 1st response
Media For Which Designed
Oil, chlorinated transformer 2nd response
Media For Which Designed
Oxygen, gaseous 3rd response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
NSN
4820-00-177-5982
Part Number
B083171-3
Description
Valve,safety Relief
CAGE
99251

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 B083171-3 NSN 4820-00-177-5982

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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