Centrifugal Pump Selection Part 2: Horsepower, Efficiency, & NPSH

In part 1 of this GATEKEEPER series, we discussed how centrifugal pumps work, pump selection criteria as well as the four components of total head (TH), static head, friction head, pressure head, and velocity head. Pump capacity, total head (TH) of the system, horsepower, efficiency and Net Positive Suction Head (NPSH) are all needed in order to accurately size the pump.

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Centrifugal Pump Selection Part 1: Total Head

Centrifugal pumps are the most common type of pumps used to move fluids through a system. Centrifugal pumps are used for high flow, low pressure systems. Positive displacement pumps are required for high pressure, low flow systems. In this 2-part GATEKEEPER series, we will discuss how centrifugal pumps work and what information is needed to determine the pump needed for a particular application.

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