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  • Users: mottto
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  1. mottto

    Pump test

    Hi, I don’t know if anybody has seen this before, but recently as i was testing a pump, I found out something strange, and would like you guys input. Here is what s going on. When i test a pump and go from shut off all the way to the max flow, i get a set of data, that is different than one i...
  2. mottto

    Bearing material

    Hi , I am looking for a bearing material , to be used in a vertical Pump , The water to be pumped is 140 degree f. The water has high level of sulfate (1087 mg/l) and chloride (879 mg/l) Total hardness is 1630 mg/l. I was looking into using PEEK or Thordon material. Anybody has used / or can...
  3. mottto

    Bearing Material

    Hi , I am looking for a bearing material , to be used in a vertical Pump , The water to be pumped is 140 degree f. The water has high level of sulfate (1087 mg/l) and chloride (879 mg/l) Total hardness is 1630 mg/l. I was looking into using PEEK or Thordon material. Anybody has used / or can...
  4. mottto

    Axial Load

    Hi , is there a device to measure the axial thrust of a vertical pump? I know it can be done using axial load cell , but ...:(.i need to measure the total thrust generated by a vertical pump. Thank you for any idea/ help
  5. mottto

    Vibration test

    I need to do a vibration test on a pump and was wondering if API 610 have a vibration severity chart , or is it just iso 10816 or (HI)? i dont have the latest API standard (i think they are on their 10 ed) but is it still Vibration vs flow (plot)? Thanks
  6. mottto

    Reed Frequency

    Hi there , im wondering what is the difference between critical speed and reed frequency of a shaft.I believe both are defined as 187.7/sqrt(deflection). Thanks

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