Safety Relief Valve

Model / MPN: S665-3-6D2 | NSN: 4820-01-630-2086

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

4820-01-630-2086

Sold in multiples of

DEMIL

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Bonnet Type

Inside spring

Bonnet Attachment Method

Integral

Disk Loading Method

Spring

Renewable Seat Ring Type

Pressed-in

Maximum Operating Temp

121.0 degrees celsius single response

Minimum Operating Temp

40.0 degrees celsius

Connection Style

Gasket sea (boss) all ends

Valve Operation Method

Automatic

Connection Type

Threaded internal tube all ends

Valve Size

0.375 inches

Adjustable Pressure Range

+40.0 to 125.0 pounds per square inch

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.375 inches all ends

Outside Diameter Tube Accommodated

0.375 inches all ends

Material

Aluminum alloy body

Material

Rubber synthetic seat

Material

Stainless steel flow control device

Media For Which Designed

Air 1st response

Media For Which Designed

Oil, hydraulic 2nd response

Surface Treatment

Anodize

Style Designator

Straight thru

Thread Series Designator

Si all ends

S665 Series Parts

Pricing and Availability

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Safety Relief Valve

Pricing and Availability

Certified Quality Assurance

S665-3-6D2 Cross Reference