Safety Relief Valve

Model / MPN: 9875 | NSN: 4820-01-226-2005

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

4820-01-226-2005

Sold in multiples of

1 EA

DEMIL

Pipe Size Accommodated

0.750 inches 1st end

Flow Control Device

Disk

Bonnet Type

Inside screw

Bonnet Attachment Method

Threaded

Disk Loading Method

Spring

Bolt Hole Quantity

4 2nd end

Maximum Operating Temp

425.0 degrees fahrenheit single response

Connection Style

Socket 1st end

Valve Operation Method

Automatic

Flange Shape

Round with holes 2nd end

Connection Type

Flange 2nd end

Connection Type

Unthreaded internal pipe 1st end

Adjustable Pressure Range

+0.0 to 15.0 pounds per square inch

Maximum Operating Pressure

150.0 pounds per square inch single response

Outside Diameter

3.875 inches 2nd end

Thickness

0.344 inches 2nd end

Bolt Hole Diameter

0.625 inches 2nd end

Bolt Circle Diameter

2.750 inches 2nd end

Flange Face Design

Plain 2nd end

Material

Copper alloy body

Material

Nickel alloy flow control device

Material

Steel comp 1008 stem

Media For Which Designed

Steam 3rd response

Media For Which Designed

Air 1st response

Media For Which Designed

Gas, inert 2nd response

Style Designator

C1 angle

Furnished Items And Quantity

1 lever

9875 Series Parts

Pricing and Availability

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9875 Cross Reference

9875 0 TO 15 PSI