Water Pump Engineering Calculator

Pressure Head
Pressure (psi)
Specific Gravity
Head (ft)
Total Dynamic Head
Pumping Water Level
from Datum (ft)
Head above Datum (ft)
Velocity Head (ft)
Column Friction
Losses (ft)
Friction Loss through
Discharge Head (ft)
Bowl Horsepower
Capacity (gal/min)   
Total Dynamic Head (ft)
Specific Gravity
Bowl Efficiency
Total Thrust Acting on Driver Thrust Bearing
Bowl Thrust Factor
(lbs/ft of head)
Total Dynamic Head (ft)
Shaft Weight (lbs/ft)
Setting from Head Base
to Top of Bowls (ft)
Field Head
Pumping Water Level
from Datum (ft)
Head above Datum (ft)
Power Loss due to Shafting
Unit Power Loss (hp/ft)
Setting from Head Base
to Top of Bowls (ft)
Power Loss in Thrust Bearings
Rotational Speed (rpm)
Total Thrust (lbs)
Motor Load
Bowl Horsepower
Power Loss due to
Shafting
Power Loss through
Thrust Bearing
Field Efficiency
Capacity (gal/min)
Field Head (ft)
Specific Gravity
Brake Horsepower
(Motor Load)
Input Horsepower (Power Supplied to Driver)
Brake Horsepower
(Driver Load)
Driver Efficiency
Overall Efficiency
Field Efficiency
Driver Efficiency
Shaft Elongation
Total Dynamic Head (ft)
Setting from Head Base
to Top of Bowls (ft)
Bowl Thrust Factor
(lbs/ft of head)
Shaft Cross-Section (in)
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