Safety Relief Valve

Model / MPN: 12157 | NSN: 4820-00-601-5888

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

4820-00-601-5888

Sold in multiples of

1 EA

DEMIL

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Disk Loading Method

Spring

Maximum Operating Temp

160.0 degrees fahrenheit single response

Connection Style

G46a plain (tube) 1st end

Connection Style

Plain (tube) 1st end

Valve Operation Method

Hydraulic

Connection Type

Threaded external tube 1st end

Thready Qty Per Inch (tpi)

16 1st end

Thread Size

0.750 inches 1st end

Outside Diameter Tube Accommodated

0.500 inches 1st end

Material

Aluminum alloy body

Material

Aluminum alloy seat

Media For Which Designed

Hydraulic fluid, phosphate-ester base single response

Style Designator

Straight thru

Thread Series Designator

Unf 1st end

12157 Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE7MC15TG841	Valve, Safety Relief	6	EA	08/20/2015
SPE7MC20T4127	Valve, Safety Relief	2	EA	02/03/2020

Pricing and Availability

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12157 Cross Reference

216-8D