Safety Relief Valve

Model / MPN: 34670-3 | NSN: 4820-00-421-5869

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

4820-00-421-5869

Sold in multiples of

1 EA

DEMIL

Thread Class

3a 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Diaphragm

Bonnet Type

Packing retaining

Disk Loading Method

Spring

Valve Discharge Flow Rate

15.0 cubic feet per minute

Maximum Operating Temp

330.0 degrees fahrenheit single response

Connection Style

G50 external seat for gasket seal (boss) 1st end

Connection Style

External seat for gasket seal (boss) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external boss 1st end

Thready Qty Per Inch (tpi)

20 1st end

Thread Size

0.437 inches 1st end

Opening Pressure Setting

4500.0 pounds per square inch

Outside Diameter Tube Accommodated

0.250 inches 1st end

Material

Copper alloy 170 flow control device

Material

Steel comp 630 body

Material

Steel comp 630 seat

Media For Which Designed

Air 1st response

Media For Which Designed

Nitrogen, gaseous 2nd response

Surface Treatment

Paint and primer

Style Designator

Angle

Thread Series Designator

Unf 1st end

34670 Series Parts

Pricing and Availability

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34670-3 Cross Reference

A51H9032-1
A51H9032-1