Criticality – based criteria for valve specification in production facilities

This work presents main novel concepts and features already implemented on major revision of industrial valve specification for Oil & Gas topside production facilities, based on criticalitylevel and application of such valves.

Topside valves were divided into diferente criticality categories, with increasing technical requirements according to service severity and safety impact in case of failure. Those new criteria in one hand can be easily correlated with other standards and specification levels used in the valve industry to better assist the definition of technical requirements, while on the other hand contribute to fair competitiveness in bidding.

Case studies and simulation results have shown that the new valve selection methodology and criteria can reduce significantly the amount of critical valves misplaced or over specified, in comparison to previously used corporate selection directive and criteria for the upstream segment.

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