In PLAN52, the top vent is kept open in the centrifugal pump seal flushing scheme – so what is the purpose of installing a pressure gauge?
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In the PLAN52 scheme, the top vent is normally open, and there is also a small fitting similar to a safety valve at the outlet that opens when the pressure exceeds 0.02. So what is the purpose of installing a pressure gauge in this case? Does this have high liquid level, low liquid level, and high pressure alarms? Why is there pressure? If there’s pressure, isn’t it simply vented directly?
What is the PLAN52 plan?
Some have recovery pipelines, and an increase in pressure indicates that the pipeline is blocked