Introduced last August, the pilot operated safety valves (POSVs) include the pop-action Series 810 and modulated-action Series 820 valves. POSVs are typically used in petroleum refineries and gas processing plants, compressors in gas pipline systems and offshore applications. The own-media-controlled POSV have the advantage that the plant can be run close to the set pressure of the valve, which leads to an increase in the capacity utilization, and thus, the efficiency of the plant. POSVs also allow higher, external-back pressures than spring-loaded valves. The valves comply with API 526, and are available in sizes from DN 25 to DN 200. — Leser GmbH & Co. KG, Hamburg, Germany
Pilot operated safety valves with API compliance
| By Chemical Engineering