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  • Users: behar
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  1. behar

    pressure reversal in dual mechamical seals

    Hi guys! Can anyone explain to me what is pressure reversal in dual mechanical seals and what are the effects with specific reference to an unpressurised buffer service? I have been searching the net for info, but there is hardly anything. Regards Behar
  2. behar

    Bearing landing deterioration

    Hi! we have a fractionator bottoms between bearing pump whose service temperature 750 deg F, anti friction bearings have lube mist lubrication,the shaft is of 416SS material, we noticed on the shaft at the area under the bearing seat of both the IB & OB appears to have some kind of "attack"...
  3. behar

    Removal of Impeller

    In a two stage pump; if the head required can be adequately supplied by one impeller, which impeller should be removed?
  4. behar

    Trimming of Impellers

    What is the maximum amount one can trim off an impeller to give a particular head?

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