Model: 559T2MP25

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Maximum Operating Temp
250.0 degrees fahrenheit 1st response
Maximum Operating Temp
250.0 degrees fahrenheit 2nd response
Maximum Operating Temp
250.0 degrees fahrenheit 3rd response
Maximum Operating Temp
250.0 degrees fahrenheit 4th response
Connection Style
G46b plain (pipe) 1st end
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Air
Connection Type
Threaded external pipe 1st end
Thready Qty Per Inch (tpi)
18 1st end
Power Drive Operating Pressure
200.0 pounds per square inch
Thread Size
0.250 inches 1st end
Material
Steel
Media For Which Designed
Air 1st response
Media For Which Designed
Ammonia, liquid 2nd response
Media For Which Designed
Gas, inert 3rd response
Media For Which Designed
Hydrogen 4th response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
NSN
4820-00-127-2180
Part Number
559T2MP25
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 559T2MP25 NSN 4820-00-127-2180

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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