Model: D539-2M-100.0

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
G46b plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Opening Pressure Setting
100.0 pounds per square inch
Material
Steel comp 303
Material Specification
66 federal standard single material response and aisi303/sae30303 assn standard single material response
Media For Which Designed
Refrigerant 12 3rd response
Media For Which Designed
Acetylene 2nd response
Media For Which Designed
Air 1st response
Media For Which Designed
Ammonia, gaseous 4th response
Media For Which Designed
Ammonia, liquid 5th response
Style Designator
C4 straight thru
Thread Series Designator
Npt 1st end
NSN
4820-01-223-2119
Part Number
D539-2M-100.0
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 D539-2M-100.0 NSN 4820-01-223-2119

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

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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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