Bridgestone HosePower - Hydraulic and Industrial
2015-6-29 · Calculating Horsepower Horsepower is a measurement of the amount of energy necessary to do work. In determining the horse-power used to pump water, we must know the: 1. pumping rate in gallons per minute (gpm), and 2. total dynamic head (TDH) in feet. The theoretical power needed for pumping water is called water horsepower(whp) and is calculated by:
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