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AA3126, AA3130, 3131, 3132, 3133, 3135, AA3135, and A3149 Series

Application

Designed for use as a primary relief valve on ASME above ground and underground containers, bulk plant installations and skid tanks. The 3131 Series may also be used as a primary or secondary relief valve on DOT cylinders, or as a hydrostatic relief valve. All working components of these relief valves are outside the container connection, so the valves must be protected from physical damage.

Features

“Pop-action” design keeps product loss at a minimum.

Relief valve designed to automatically reseat firmly after discharge.

Resilient seat disc provides “bubble-tight” seal.

3149 relief valves incorporate integral pipeaway adapter with break off groove that protects the valve from piping stress damage.

Optional pipeaway adapters have grooves that will break off to protect the relief valve from damage should excess stress be applied to the piping.

3149 relief valves include weep hole deflectors, installed to guard against flame impingment on adjacent containers.

Most are ASME rated for use with LP-Gas and anhydrous ammonia.



Materials

Body Brass
Spring Steel
Stem Stainless Steel
Seat Disc Resilient Rubber

AA3126_aa3130_3131_3132_3133_3135_aa3135.pdf


 
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