Imperial units Metric units

Flow q (gpm):    

Diameter d: (in):    

Velocity (ft/s) = 10.21    

Submergence S (in) = 22.3

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1. Don't take anything for granted, do your own calculations and verify these results.
2. This app alllows you to predict what level of liquid above a suction entry will avoid vortex formation.
    Vortexes will allow air to enter the pump suction reducing the capacity of the pump.
3. This formula was developped by The Hydraulic Institute, when the minimum
     submergence S is reached vortex formation is likely;
     see this page for further information.
4. This app is intended to be used for educational purposes, the author takes no responsibility for the use
     of these results.

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