DOER Tools
Pump Affinity Laws
U.S. Army Corps of Engineers | Engineer Research and Development Center | Warning
  • gpm - rpm
  • h ~ (rpm)2
  • hp ~ (rpm)3
where GPM =
h =
hp =
rpm =

U.S. gallons/minute
head in feet of liquid
horsepower
pump revolutions per minute

Additional Information: Dr. Jack E. Davis

Reference: Thomas M. Turner, Fundamentals of Hydraulic Dredging, 1984.

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Webdate October 24, 2001