Safety Relief Valve

Model / MPN: 5159B-1M-650 | NSN: 4820-01-199-3068

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

4820-01-199-3068

Sold in multiples of

1 EA

DEMIL

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Bonnet Type

Inside screw

Bonnet Attachment Method

Threaded

Disk Loading Method

Spring

Maximum Operating Temp

250.0 degrees fahrenheit single response

Connection Style

G46b plain (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded external pipe all ends

Maximum Operating Pressure

2500.0 pounds per square inch single response

Thread Size

0.125 inches all ends

Opening Pressure Setting

650.0 pounds per square inch

Material

Copper alloy body

Media For Which Designed

Water-oil-gas single response

Thread Series Designator

Npt all ends

5159B Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE7MC18T1312	Valve, Safety Relief	22	EA	11/06/2017
SPE7MC18T6349	Valve, Safety Relief	45	EA	02/26/2018
SPE7MC21T081H	Valve, Safety Relief	34	EA	05/03/2021

Pricing and Availability

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5159B-1M-650 Cross Reference

PB37865-500