Inputs Saved
Δp inputs are converted to head using the chosen fluid density.
Recommended motor size = motor input ÷ ηm × SF (typically 1.10–1.25).
Formula. Hydraulic Ph = ρ·g·Q·H. Shaft Ps = Ph / ηp. Motor input Pm = Ps / ηm. g = 9.80665 m/s².
Results
Recommended Motor Size
—
Includes pump & motor losses + service factor
Hydraulic Power
— kW
Shaft Power
— kW
Motor Input Power
— kW
Overall Efficiency
— %
Use this for preliminary sizing only. Final motor selection should account for NPSHa, viscosity correction, starting torque, ambient temperature, duty cycle, and standard motor frame sizes.