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Pump Sizing Calculation - Does the hydraulic calculation for a centrifugal pump and estimates differential head, hydraulic power, motor power, NPSH available.

Data

Flowrate US gpm
Density lb/ft³
Viscosity cP
Vapor Pressure PSIA
Pump Efficiency %

Solution

Suction Pressure20.32PSIA

Discharge Press.69.33PSIA

Differential Press.49.01PSIA

Differential Head113.21ft

Hydraulic Power2.86bhp

Pump BHP5.72bhp

NPSH Available12.28ft

Suction

Pressure PSIA
Static Head ft
Equipment Loss PSI

Suction Piping

Length ft
Pipe Size (NPS) inch
Sch/ Thickness
#FittingsKDP
Elbows, 90LR 0.27 0.03
Elbows, 45LR 0.20 0.03
Tees, Thru 0.66 0.08
Tees, Branch 1.07 0.14
Ball Valves 0.20 0.00
Butterfly Valves 0.34 0.00
Gate Valves 0.14 0.02
Globe Valves 5.32 0.00
Check Valves 2.00 0.25
Plug Valves 0.34 0.00
Pipe Entrance 0.50 0.06
Total, PSIA 0.61

Suction Hydraulics

Pipe ID3.068inch

Velocity4.340ft/s

Reynold's No.103036

Pipe DP1.03psi/100 ft

Suction Pressure20.32PSIA

Discharge

Pressure PSIA
Static Head ft
Equipment Loss PSI

Discharge Piping

Length ft
Pipe Size (NPS) inch
Sch/ Thickness
#FittingsKDP
Elbows, 90LR 0.27 0.03
Elbows, 45LR 0.20 0.03
Tees, Thru 0.66 0.08
Tees, Branch 1.07 0.14
Ball Valves 0.20 0.00
Butterfly Valves 0.34 0.00
Gate Valves 0.14 0.02
Globe Valves 5.32 0.00
Check Valves 2.00 0.00
Plug Valves 0.34 0.00
Pipe Exit 1.00 0.13
Total, PSIA 0.42

Discharge Hydraulics

Pipe ID3.068inch

Velocity4.340ft/s

Reynold's No.103036

Pipe DP1.03psi/100 ft

Discharge Press.69.33PSIA