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Safety Relief Valve

Model / MPN: 641B5-1/8-11 | NSN: 4820-01-106-6760
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
4820-01-106-6760
Sold in multiples of
1 EA
DEMIL
NO
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Valve Discharge Flow Rate
2.0 gallons per minute
Maximum Operating Temp
225.0 degrees fahrenheit single response
Connection Style
G46b plain (pipe) 2nd end
Connection Style
G9 plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 2nd end
Connection Type
Threaded internal pipe 1st end
Maximum Operating Pressure
450.0 pounds per square inch single response
Thread Size
0.125 inches 1st end
Thread Size
0.125 inches 2nd end
Opening Pressure Setting
360.0 pounds per square inch
Material
Steel comp 303
Material Specification
Aisi 303 assn standard single material response
Media For Which Designed
Air 1st response
Media For Which Designed
Oil, hydraulic 2nd response
Surface Treatment
Passivate
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
641B5 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC18T026Q Valve, Safety Relief 14 EA 06/11/2018
SPE7MC18T231U Valve, Safety Relief 14 EA 10/01/2018

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641B5-1/8-11 Cross Reference
  • 641B-5-1/8-11
  • 641B-5-1/8-11