Pump Horsepower
This is a rapid method to estimate pump horsepower by the following formula:
formula
\(HP = \frac{GPM \Delta P}{1715 \eta}\)
Where:
\(HP\) = Pump Horsepower
\(GPM\) = flow rate of liquid being pumped, GPM
\(\Delta P\) added pressure (discharge minus suction), psig
\(\eta\) = pump efficiency
notes
The expression can be rearranged to obtain \(\Delta P\) in terms of other variables.