Pump Hydraulics Explained: Head, Flow, Pressure, Power, and NPSH
A thorough guide to pump hydraulics, covering the essential parameters of head, flow, pressure, power, and Net Positive Suction Head (NPSH). Learn how these…
PumpCalcs reference library
Tag: flow rate
6 resources
Methods · worked examples · references
How to Read a Pump Performance Curve
A pump performance curve graphically relates flow rate to head, power, efficiency, and NPSH required. Learning to read these curves is essential for selecting…
Pump Affinity Laws: How Speed and Impeller Diameter Change Flow, Head, and Power
The pump affinity laws are fundamental scaling relationships that predict how centrifugal pump performance changes when rotational speed or impeller diameter is varied. Flow…
How to Size a Pool Pump: Turnover Rate, Flow, and Why Bigger Is Worse
Properly sizing a pool pump hinges on the turnover rate and required flow, not on simply picking the biggest motor. This article explains the…
Irrigation Pump Sizing for Sprinkler and Drip Systems: A Complete Engineering Guide
Accurately sizing pumps for sprinkler and drip irrigation prevents under‑performance, water waste, and equipment damage. This guide walks through the governing equations, step‑by‑step calculations,…
How to Choose the Right Pipe Size for a Pump System
Choosing the proper pipe diameter links a pump’s output to the downstream network, affecting efficiency, cost, and reliability. This guide walks through the governing…