Pump Curve Calculator

System curve analysis with operating point, NPSH, efficiency, and pump power for centrifugal pumps

Pump curveSystem curveEfficiencyOperating point

Type

Shutoff Head H₀ (m)

Max Flow Q_max (m³/h)

Max Eff. η_max (%)

BEP Flow Q_BEP (m³/h)

Static Head (m)

Pipe Length (m)

Pipe Dia (mm)

Friction Factor f

Total K-factor ΣK

Suction Head (m)

Vapor P (kPa)

Atm P (kPa)

Density (kg/m³)

Flow Rate

45.0930m³/h

Head

13.1124m

Efficiency

50.2%

NPSHa

9.9268m

Hydraulic Power

1,605.85W

Shaft Power

3,199.74W

Shaft Power

3.200kW

Shaft Power

4.291hp

Efficiency: Low (50%)

NPSHa margin: Sufficient (>1.5 m)