Horsepower Required to Drive a Pump

Formula: GPM x PSI x .0007 = horsepower needed
Example: How many horsepower are needed to drive a 5 gpm pump at 1500 psi?

Pump Output Flow (In Gallons Per Minute)

Formula: RPM x Displacement ÷ 231 = gpm
Example: How much oil will be produced by a 2.5 cubic inch pump operating at 1200 rpm?

Pump Displacement Needed for GPM of Output Flow

Formula: 231 x GPM ÷ RPM = in3 per revolution
Example: What displacement is needed to produce 5 GPM at 1500 RPM?

*Pneumatic and Hydraulic Company, LLC assumes no liability for errors in data nor in safe and/or satisfactory operation of equipment designed from this information.