Generate the pipe system H–Q curve, overlay a pump curve to find the operating point. Includes efficiency, hydraulic power, and affinity-law speed scaling.
Enter the total friction + minor head loss at one known flow rate. The tool fits a parabola H_sys = H_static + R·Q².
Enter data from the pump datasheet (at rated speed). Add more points for a more accurate curve.
H–Q points (head in metres)
System curve fitted as H_sys = H_static + R·Q² (Quick mode) or computed segment-by-segment with Colebrook-White (Pipe segments mode).
Duty point found by linear interpolation of the intersection between system and pump curves.
Affinity laws are exact for geometrically similar operating points — actual performance may deviate due to viscosity effects and impeller trim.