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Safety Relief Valve

Model / MPN: 646B-2-3/8-52CP40 | NSN: 4820-01-348-1400
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
4820-01-348-1400
Sold in multiples of
1 EA
DEMIL
NO
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
300.0 degrees fahrenheit single response
Connection Style
G9 plain, optional en (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Thread Size
0.375 inches all ends
Opening Pressure Setting
40.0 pounds per square inch
Material
Stainless steel bodystainless steel flow control devicerubber ethylene-propylene class epm packing
Media For Which Designed
Steam 1st responsewater, fresh 2nd response
Thread Series Designator
Npt all ends

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646B-2-3/8-52CP40 Cross Reference