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Safety Relief Valve

Model / MPN: 5139B4MP630 | NSN: 4820-00-004-8132
ITAR Registered seal

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.

Product Details
NATO Stock Number
4820-00-004-8132
Sold in multiples of
DEMIL
NO
Thread Direction
Right-hand 2nd 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
Connection Style
G9 plain, optional en (pipe) 2nd end
Connection Style
Plain (pipe) 1st end
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded internal pipe 2nd end
Features Provided
Pressure tight outlet side
Maximum Operating Pressure
2400.0 pounds per square inch single response
Thread Size
0.500 inches all ends
Opening Pressure Setting
630.0 pounds per square inch
Material
Copper alloy body
Media For Which Designed
Refrigerant 12 4th response
Media For Which Designed
Acetylene 2nd response
Media For Which Designed
Air 1st response
Media For Which Designed
Ammonia, gaseous 3rd response
Media For Which Designed
Hydrogen 5th response
Style Designator
Straight through note: to be used for valve bodies of one section only.
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
5139B Series Parts

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5139B4MP630 Cross Reference
  • 5159B-4MP-630