Metal Seat Relief Valves
Metal seat high pressure relief valves provide reliable venting of gases or liquids for set pressures from 3,000 (207 bar)to 75,000 psi (5171 bar). The standard temperature range for all models is -432o to 400o F (-252o to 204o C). A high temperature option to 750o F (399o C) is available.
Soft Seat Relief Valves
Soft-seat high pressure relief valves provide reliable venting of gases or liquids for set pressures from 1,500 psi (103 bar) to 20,000 psi (1378 bar). The operating temperature range is 32o to 400o F (0o to 204o C). The soft-seat design provides bubble tight sealing, repeatable pop-off and reseat. Soft-seat relief valves provide a higher cycle life than metal-seat relief valves.