What is the role of a balance hole in an impeller of a centrifugal pump especially in magnetic driven centrifugal pumps? There are two magnetic driven centrifugal pumps together (main and its stand-by) in our plant, and one of the impellers has balance hole and the other does not. Should we drill-in the impeller without a balance hole to create it?
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Ross Mackay Forum Moderator 93 Posts
Re: Impeller balance holes27 August 2007 at 1:29pmThe role of the balance holes in an impeller is to balance the pressure on each side of the impeller, and thus, the magnitude and often direction of the resultant axial thrust on the impeller. Drilling holes in an impeller will effectively change the hydraulics of that impeller. As you dont indicate why you would even consider such an action, I am unable to offer any further assistance.