Axial valves
Cikkszám:
HIPPSONOFFMOK
HIPPS is applied to prevent over-pressurisation of a plant or pipeline by shutting off the source of the high pressure. The Mokveld HIPPS totals over 50 000 (with over 3700 valves) operational years and are therefore proven-in-use for high reliability safety applications.
High Reliability:
Third parties have validated the failure data of the final element (valve and actuator) on applications with less than 2 seconds stroking time.
Fast acting:
Fast acting axial on-off valve with integrated actuator, specifically designed for fast reliable stroking.
High Capacity:
The capacity of the axial on-off valve is extremely high, as a result of which the pressure drop is negligible.
Accuracy better than 1%:
Mokveld’s mechanical initiators have an accuracy better than 1 percent of the set point. Failure data have been validated by third parties.
No partial stroke testing required:
The Mokveld final elements do not require additional electronic systems, like partial stroke testing devices, to meet SIL 3 with a 1 year test interval. A separate technical datasheet on this subject is available.
Mokveld engineering assistance:
Mokveld engineers can provide support in an early phase of the project. We can assist in defining suitable HIPPS architecture, fault tree analysis, determining the pressure rise in the protected volume and the required stroking times and set points of the entire system.
HIPPS are critical elements in a process loop. Malfunction or failure of a HIPPS can seriously affect plant operation, the environment and personnel. The design of a HIPPS should be based on sound technical and economical arguments and long-term perspectives. Selecting a Mokveld HIPPS with proven reliable performance will ensure a safe and reliable operation of your plant.
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