What Is Pump Head? Static, Dynamic, and Total Head Explained
Pump head quantifies the energy a pump adds to a fluid, expressed as a height of liquid. This article breaks down static, dynamic, and…
PumpCalcs reference library
Category: Pump Hydraulics Fundamentals
Core concepts and equations that define pump hydraulic behavior.
17 resources
Methods · worked examples · references
Pump Engineering Reference: Units, Conversions, Fluid Properties, Pipe Data, and Standards
A comprehensive guide to the essential reference data used in pump engineering. Learn the core units, conversion methods, fluid characteristics, pipe specifications, and governing…
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…
Pump Efficiency Explained: Hydraulic, Volumetric, Mechanical, and Overall
Understanding pump efficiency is essential for reliable system design and energy savings. This article breaks down hydraulic, volumetric, mechanical, and overall efficiencies, showing how…
Darcy-Weisbach vs Hazen-Williams: Which Friction Loss Method Should You Use?
Choosing the proper friction‑loss calculation method is crucial for accurate pump sizing and energy efficiency. This article compares the physics‑based Darcy‑Weisbach equation with the…
Cavitation in Pumps: Causes, Warning Signs, and How to Prevent It
Cavitation occurs when local pressure in a pump falls below the liquid’s vapor pressure, causing vapor bubbles that implode and damage components. This article…
How Viscosity Affects Centrifugal Pump Performance (and When to Derate)
Viscosity reduces a centrifugal pump's flow, head, and efficiency. This article explains the governing equations, shows how to apply viscosity correction factors, and tells…
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…
Head vs Pressure: Why Pumps Are Rated in Feet Instead of PSI
Pump manufacturers express performance in feet of head because head directly represents the energy added to the fluid per unit weight, independent of fluid…
NPSH Explained: NPSHa vs NPSHr and How to Calculate Both
Net Positive Suction Head (NPSH) determines whether a centrifugal pump will cavitate. This article clarifies the difference between available NPSH (NPSHa) and required NPSH…