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API Plan 72 Flow switch high

API Plan 72 Flow switch high

API Plan 72 Flow switch high

(OP)
Hi,
I'm doing the control philosophy for a screw compressor equipped with API Plan 72/75, buffer gas is nitrogen. I notice that a flow switch high is specify in the inlet line to the seals. what is the reason for have this switch? What happens to the seals if the nitrogen flow is higher than normal and what should be the threshold value respect the normal flowrate? Thanks in advance to who will respond to my queries.

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