Hydraulic Pump Drive Horsepower
The horsepower it takes to drive a hydraulic pump.
Example
You enter
- Pump flow (gpm) 10
- Working pressure (psi) 2000
- Overall pump efficiency (0-1) 0.85
You get
- Fluid horsepower 11.7 HP
- Input (hp) 13.73
Checked against published worked examples from: Denison Hydraulics (Parker).
Details, formula, and sources
ScopeFluid HP = gpm x psi / 1714, drive HP = fluid HP / efficiency. 10 GPM at 2000 psi, 0.85 efficiency -> 11.7 fluid HP, 13.7 drive HP (size the motor to 13.7 and round up); at 100% efficiency the 2.1 HP gap is the pump loss. A sizing aid; the pump and motor data govern.
Formula or tablefluid_hp = gpm x psi / 1714; input_hp = fluid_hp / efficiency.
Source and editionThe fluid-power pump horsepower relation (fluid HP = gpm x psi / 1714), by name.
Free accessThe gpm-psi-to-horsepower relation and the 1714 constant are standard published fluid-power results.
What governsEstimate. AHJ and licensed professional govern.
API field namesgpm, psi, efficiency, fluid_hp, input_hp
- Fluid power fluid HP = gpm x psi / 1714fluid-power engineering
- Drive power input HP = fluid HP / overall efficiencyfluid-power engineering
- Sizing only round up to a standard motor; the manufacturer data governscope of this tile