Safety Relief Valve

Model / MPN: A418-0150 | NSN: 4820-00-529-4198

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

4820-00-529-4198

Sold in multiples of

DEMIL

Thread Class

3a all ends

Thread Direction

Right-hand all ends

Flow Control Device

Disk or stem

Bonnet Type

Inside spring

Bonnet Attachment Method

Integral

Disk Loading Method

Spring

Valve Discharge Flow Rate

4.0 gallons per minute

Maximum Operating Temp

160.0 degrees fahrenheit single response

Connection Style

G4 gasket sea (boss) all ends

Connection Style

Gasket sea (boss) all ends

Valve Operation Method

Manual

Connection Type

Threaded internal boss all ends

Features Provided

Bonnet packing and pressure tight outlet side

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.750 inches all ends

Opening Pressure Setting

150.0 pounds per square inch

Outside Diameter Tube Accommodated

0.500 inches all ends

Material

Aluminum alloy body

Material

Stainless steel flow control device

Material

Stainless steel seat

Media For Which Designed

Fuel/oil, hydrocarbon single response

Surface Treatment

Anodize

Style Designator

Straight thru

Thread Series Designator

Unf all ends

A418 Series Parts

Pricing and Availability

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ISO 9001:2015 + AS9120B
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A418-0150 Cross Reference

3466651-509
3466651-509