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Understanding centrifugal pumps

  1. Mar 23, 2013 #1
    In this video, I would like to know why the operator of the centrifugal pump had to fill the pump with water first?

    Last edited by a moderator: Sep 25, 2014
  2. jcsd
  3. Mar 23, 2013 #2
    A centrifugal pump won't pump air, so if it is not primed the rotor will spin churning up the air in the stator until it overheats and something is damaged.
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