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Characteristic Curves of Centrifugal Pumps topics include: Main characteristic curves, operating characteristic and constant efficiency curves.
A centrifugal pump's characteristic curve is a graph that shows how the pump moves fluids in relation to pressure levels.
The curve plots the following parameters against flow rate (Q): Head (H) Power input (P) Pump efficiency (η) NPSHR, or the NPSH required by the pump
The curve shows the flow rate on the x-axis and the head on the y-axis. The curve shows that the head gradually decreases with increasing flow. In a steep centrifugal pump curve, the arch of the curve is steeper, resulting in a larger pressure (head) decrease as the flow increases. Characteristic curves are plotted from the result of a test on the centrifugal pumps. It helps to predict the behavior and performance of the pump when the pump is working under different flow rates, head and speed.
Related Test: Hydraulic Machines Practice Test: Centrifugal Pumps
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