// multi-utility computation suite · offline · instant · precise
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eng.centrifugal-pump Calculator
Calculates centrifugal pump head, flow rate, power, and efficiency from pump curve data and system resistance. The pump operating point is where the pump curve intersects the system curve — changing pipe diameter or adding parallel pumps shifts this intersection.
Inputs
Q1
Reference formula or conversion factor shown for context.
H1
Reference formula or conversion factor shown for context.
P1
Rate of energy transfer (W). P = V×I (electrical). P = F×v (mechanical). 1 horsepower ≈ 746 W.