003131G Rego 3/4" MPT External Relief Valve 250 PSI

• 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 impingement on adjacent containers
• Most are ASME rated for use with LP-Gas and anhydrous ammonia

Specification Sheet

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