Safety Relief Valve

Model / MPN: 2478-185 PSI | NSN: 4820-01-098-1626

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

4820-01-098-1626

Sold in multiples of

1 EA

DEMIL

Thread Direction

Right-hand 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Disk Loading Method

Spring

Maximum Operating Temp

406.0 degrees fahrenheit single response

Connection Style

G46b plain (pipe) 1st endg9 plain, optional en (pipe) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 1st endthreaded internal pipe 2nd end

Maximum Operating Pressure

300.0 pounds per square inch single response

Thread Size

0.500 inches 1st end0.750 inches 2nd end

Opening Pressure Setting

185.0 pounds per square inch

Material

Copper alloy flow control device

Material

Copper alloy body

Material Specification

Qq-c-390, alloy d4/d/ federal specification single material response body

Material Specification

Qq-c-390, alloy d5/d/ federal specification single material response flow control device

Media For Which Designed

Water, fresh single response

Thread Series Designator

Npt 2nd end

Thread Series Designator

Npt 1st end

2478 Series Parts

Pricing and Availability

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2478-185 PSI Cross Reference

1478-1/2IN185PSI
214636-1/2 IN-1478 185PSI
214636
1/2-1478 185PSI