Formulas - Parker Hannifin
1 hp = 33,000 ft lbs per min or 33,000 lbs raised 1 ft in 1 min 1 hp = 550 ft. lbs. per second 1 hp = 746 Watts or 0.746 kw 1 hp = 42.4 Btu per min 1 hp = 2545 Btu per hour BTU = The energy to raise one pound of water one degree Fahrenheit. Flow Formulas: GPM (theoretical) = RPM x CIR ÷ 231 GPM = Oil flow in gallons per minute
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