To clarify what I am looking for with the pump suction question: Clearly the flow thru the pump reduces to zero, but without flow will the interior of the pump be negative of the output. For a given rpm, is this differential a limit based on geometry? Is it possible to predict this pressure...
I am using the rotating endplates of a submersible motor as rudimentary centrifugal pump surfaces to keep dirt out of the seal area of the motor. The endplates have radial slots cut in them as slingers. Filtered water is supplied at center of the endplates at the ambient pressure of the depth...
