Pump Curves - eninepump.com

Fluid flow pump system Pump Types Fluid flow applications can be divided into two categories: low flow at high pressure and high flow at low pressure . Low flow at high pressure applications include hydraulic power systems and typically employ positive-displacement pumps . The vast majorities of fluid-flow applications are categorized as high flow at low pressure and typically use centrifugal pumps . The following analysis is for high flow at low pressure applications only. In centrifugal pumps , the fluid enters along the centerline of the pump, is pushed outward by the rotation of the impeller blades, and exits along the outside of the pump.

Source of original pump curve: Kreider and Rabl, 1996. A system curve for an open-loop piping system with a “static” or “inlet/outlet” pressure of 40 ft is shown below.

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