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Net Positive Suction Head (NPSH)

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Knowledge Base Energy & Hydraulic Grade Lines (EGL/HGL) in FluidFlow How suction-side pressure margin is visualized along a network using EGL/HGL plots. Knowledge Base Pump & Pipe Sizing Best Practices Sizing choices that keep available suction head safely above the pump's NPSHr. Article FluidFlow Liquid module Model incompressible liquid systems and read NPSHa at every pump from the solution.

Related content

Guide Orifice Plate Sizing Automatic orifice-plate sizing for flow measurement and restriction. Guide Pumps in Parallel & Series How combined pump curves shift the system operating point. Guide Centrifugal Pump Performance Curve Reading head, efficiency and NPSHr from manufacturer curves.

Reviewed by the FluidFlow Engineering Team · Last reviewed: June 2026 · Applies to FluidFlow v3.54 (steady-state analysis)

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