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Pump Curve Calculator

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Input Parameters

Unit System

Imperial (°F, BTU, ft)SI (°C, kW, m)

Flow Rate (GPM)

Head (ft)

Efficiency (%)

Results

Pump Performance

14

Pump Power BTU/hr

931

Specific Speed

Parameters

Flow Rate100 GPM

Head50 ft

Efficiency75 %

Pump Curve Analysis

Calculation Steps

1

Calculate Pump Power

Formula:

P = \frac{Q \times H \times \rho}{3960 \times \eta}

Calculation:

P = \frac{100.0 \times 50.0 \times 8.33}{3960 \times 0.75}

Result:

14.02 \text{ BTU/hr}

2

Calculate Specific Speed

Formula:

N_s = \frac{N \sqrt{Q}}{H^{0.75}}

Calculation:

N_s = \frac{1750 \sqrt{100.0}}{50.0^{0.75}}

Result:

931 \text{ }