Safety Relief Valve

Model / MPN: 646B-2-3/8-52 | NSN: 4820-01-227-1011

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

4820-01-227-1011

Sold in multiples of

1 EA

DEMIL

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Bonnet Type

Inside screw

Bonnet Attachment Method

Threaded

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

Adjustable Pressure Range

+10.0 to 50.0 pounds per square inch

Maximum Operating Pressure

3600.0 pounds per square inch single response

Thread Size

0.375 inches all ends

Material

Rubber synthetic seat

Material

Steel comp 303 body

Material

Steel comp 303 flow control device

Media For Which Designed

Air 1st response

Media For Which Designed

Hydraulic fluid, mineral base 2nd response

Style Designator

C1 angle

Thread Series Designator

Npt all ends

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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

646B-2-3/8-52
646B-2-3/8-52CP4