GAP A& B G002-1

GAP A& B G002-1

The following information will apply to closed, semi-open and open impellers unless noted otherwise:

  • We use the term gap “A” to describe the clearance between the impeller shrouds to the volute or casing and
  • Gap “B” describes the clearance between the impeller vanes and the casing or volute.
  • “D” describes the diameters of the vanes and shrouds

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  • On February 15, 2018