Metso SIL3 ESD valves

SIL3 certified ball valves have been added to the Metso range of valves, actuators and intelligent valve controllers. The seat supported or trunnion mounted modular ball valve – series X and M – have been classified and certified by Lloyd’s in accordance with IEC 61508, Type A equipment: these valves are available in up to 18inches bore, for typical process safety duties in the chemical, petro-chemical and refining industries, as well as the pulp and paper industry. The valves are combined with Neles ValvGuard intelligent valve controllers, offering periodic partial stroke testing and intelligent prediction tools to create a Metso iESD, an intelligent emergency shutdown valve and actuator combination, all in a single package, tested and configured as complete assembly.¬† The SIL assessment study used field proven reliability analysis to give accurate reliability figures and failure rates for the final element in a safety loop. The probability of failure on demand and optimal test intervals are estimated by using the Metso¬†Nelprof valve selection tool.


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