Safety Relief Valve

Model / MPN: A42437 | NSN: 4820-00-163-5161

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

4820-00-163-5161

Sold in multiples of

DEMIL

Flow Control Device

Disk

Bonnet Type

Exposed spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Valve Discharge Flow Rate

43200.0 pounds per hour

Renewable Seat Ring Type

Threaded

Bolt Hole Quantity

8 1st end

Bolt Hole Quantity

8 2nd end

Valve Operation Method

Automatic or manual

Flange Shape

Round with holes 1st end

Flange Shape

Round with holes 2nd end

Features Provided

Pressure tight outlet side

Valve Size

2.500 inches

Criticality Code Justification

Feat

Opening Pressure Setting

710.0 pounds per square inch

Outside Diameter

7.500 inches 1st end

Outside Diameter

9.000 inches 2nd end

Thickness

1.188 inches 2nd end

Thickness

1.250 inches 1st end

Bolt Hole Diameter

0.875 inches 1st end

Bolt Hole Diameter

0.875 inches 2nd end

Bolt Circle Diameter

5.875 inches 1st end

Bolt Circle Diameter

7.250 inches 2nd end

Flange Face Design

Raised straight 2nd end

Flange Face Design

Recessed straight 1st end

Raised Face Height

0.062 inches 2nd end

Raised Face Diameter

5.500 inches 2nd end

Recess Diameter

6.875 inches 1st end

Recess Depth

0.062 inches 1st end

Style Designator

Angle flanged ends

Reference Number Differentiating Characteristics

As differentiated by the valve discharge flow rate requirement

A4243 Series Parts

Pricing and Availability

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Safety Relief Valve

Pricing and Availability

Certified Quality Assurance

A42437 Cross Reference