Designed for medium-to-high-pressure systems, a line of pressure-relief valves can be used for oilfield equipment, petrochemical applications, cryogenic systems or onshore high pressure gas systems. The valves are designed to open proportionally to increasing pressure, ranging from 1,500 to 20,000 psig (103 to 1378 bar), with temperatures ranging from -328 to 400°F (-200 to 204°C). The repeatable-release design minimizes the need for frequent recalibration. The design allows the valves to automatically reseat after each pressure release, resulting in reduced maintenance and downtime.