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  1. Mike9208

    Centrifugal pumps running in parallel, one pump with high vibration

    Hi to all colleagues out there, In the ethylene plant that company where I work is biulding there are three ITT Goulds Non-API pumps OH1, namely P-1234A/B/C, running with equalized water, rated capacity each one 300m3/h@40.3m. There are several operating cases, but the normal one requires two...
  2. Mike9208

    Mechanical Vibration on API Pump VS4

    Dear Colleagues, Looking for some advice. On the plant where I work, we have an API 610 VS4 pump. The pump is having high vibration only in one radial direction (almost 6mm/s - too high for a newly commissionned mechine), while axial and other radial vibration are within ISO limits. This pump...
  3. Mike9208

    API 610 VS4 Mechanical Seal and Seal Plan

    Colleagues, I am working on specifying some pumps for an LNG plant, and I am struggling with the mechanical seal and seal plan for the VS4 type API 610 pumps. All the VS4 pumps will be installed in drums, therefore, as per API 610 this is a closed system requiring a vapor-proof construction...

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