Model: 559T-2MP-4

Safety Relief Valve

Properties:

Thread Direction
Right-hand all ends
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Minimum Operating Temp
-40.0 degrees fahrenheit
Connection Style
G46b plain (pipe) 1st end
Connection Style
G9 plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded internal pipe 2nd end
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Opening Pressure Setting
4.0 pounds per square inch
Material
Rubber butadiene-acrylonitrile class nbr packing
Material
Steel comp 316 body
Media For Which Designed
Acetylene 2nd response
Media For Which Designed
Air 1st response
Media For Which Designed
Hydrogen 3rd response
Thread Series Designator
Npt all ends
NSN
4820-01-477-5113
Part Number
559T-2MP-4
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 559T-2MP-4 NSN 4820-01-477-5113

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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