What are the failure modes of the inlet and outlet valves of natural gas compressors?
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For natural gas compressors, centrifuges, and inlet/outlet valves, should they be of the FC or FO type? And what about anti-surge valves – should they be FC or FO type? For what reasons were these failure modes of the valves considered?
In the event of a surge protection valve failure, it is necessary to activate protection for the unit, hence it is set to FO. Depending on the process conditions, the inlet and outlet valves of the unit can be integrated into the SIS system to facilitate interlocking functions – with equipment protection being the primary priority, followed by meeting the process requirements. Specifically, it depends on what process system the unit is part of; an analysis is required