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  1. sashi30102014

    Very Very Non Standard Problem in a multistage centrifugal pump

    Hi All, Attached is the isometric dwgs of both pumps.. showing suction and discharge piping. There is no difference between the pumps piping... Please, can you provide more info on acoustic reference..From this iso's any analysis we can do...
  2. sashi30102014

    Very Very Non Standard Problem in a multistage centrifugal pump

    Hi, Sorry, missed to attach schematic. Attached now. P1380 and P1390 are identical in all way. Yes, our plan is to provide some temporization of PSHH, may be 5 seconds or more. But, we like to know, what is happening ? why pressure is shooting for such a short time during starting.. is it some...
  3. sashi30102014

    Very Very Non Standard Problem in a multistage centrifugal pump

    Hi all, Thanks for the replies. Attached are the Schematics, pump performance curve and FAT report. Please see answers for your queries, 1. Pump suction is flooded. For suction, Oil is coming from the separator vessels, the vessel pressure is constant. At suction nozzle of pump, normal...
  4. sashi30102014

    Very Very Non Standard Problem in a multistage centrifugal pump

    Hi All, I am here posting a very mysterious problem we are facing in a new multistage centrifugal pump. Background is, we replaced existing centrifugal pump with new centrifugal pump whose specifications are Flow rate: 250 m3/hr, differential pressure 75 kg/cm2, with normal suction pressure...

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