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  1. swern

    Mechanical Seal Damage Due to Suction Pressure Spike

    Let me add a few more pieces of the puzzle. Management has decried that the recycle valve will go 100% open on a trip. Based on the discharge volume being significantly larger than the suction volume, as well as, the valve throughput, the suction pressure climbs ~ 200 psi and then decays...
  2. swern

    Mechanical Seal Damage Due to Suction Pressure Spike

    The plant I work at has two centrifugal compressors in parallel. The two compressors have a poorly designed surge control system such that the recycled discharge volume is considerably greater than the suction volume. Because of the volume disparities, the suction pressure spikes during a trip...
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