Intelligent emergency shutdown valves

Paul Boughton
Metso's offering of valves, actuators and intelligent valve controllers has been extended with the introduction of SIL certified ball valves.

Trunnion and seat supported modular ball valve series X and M are classified and certified by Lloyd's in accordance with IEC 61508, Type A equipment.

The SIL assessment study with field proven reliability analysis confirms that X and M series ball valves can be used in applications up to and including SIL 3 in single valve configurations in accordance with IEC 61508.

Metso's iESD (intelligent emergency shutdown) valves and actuators with Neles ValvGuard intelligent valve controllers improve plant safety cost efficiently.

Metso's iESDs combine the know-how of final elements and applications, safety standards and system operability together with intelligent partial-stroke test devices. All this technology has been combined in a single package and tested and configured as an integrated assembly with a clear function.

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