How to Size a Pump: A Step‑by‑Step Guide to Flow, Total Dynamic Head, and Duty Point
Learn the essential steps to correctly size a pump by calculating flow, total dynamic head, and determining the duty point. This guide covers core…
PumpCalcs reference library
Category: Sizing, Piping & System Design
Methods to size pumps and design piping networks for optimal performance.
14 resources
Methods · worked examples · references
Well Pump Sizing: Submersible vs Jet Pumps for Home Water Systems
Choosing the right well pump for a residential water system hinges on accurate sizing. This article compares submersible and jet pumps, explains the governing…
Pumps in Series vs Parallel: How Curves, Flow, and Head Combine
Understanding how centrifugal pump performance changes when units are placed in series or parallel is essential for reliable system design. This article explains the…
How to Calculate Friction Loss in Pipe (With Worked Examples)
Friction loss quantifies the pressure drop caused by fluid friction in a pipe and is essential for accurate pump selection and system design. This…
Water Hammer: How to Calculate Surge Pressure and Control It
Water hammer is a rapid pressure surge caused by sudden changes in fluid velocity. This article explains the Joukowsky equation, walks through US and…
How to Size a Booster Pump for Domestic Water Pressure
Choosing the right booster pump for a home involves calculating the total dynamic head and the peak flow demand, then matching those values to…
HVAC Hydronic Pump Sizing: From BTU/h to GPM (Including Glycol)
Learn how to convert heating or cooling loads expressed in BTU/h into the required water or glycol flow in gallons per minute for HVAC…
Recommended Fluid Velocities for Suction and Discharge Piping
Choosing appropriate fluid velocities in suction and discharge piping is essential to avoid cavitation, excess friction loss, and premature wear. This article presents the…
Sump Pump Sizing: Measuring Inflow, Calculating Head, and Avoiding Short Cycling
Properly sized sump pumps keep basements dry and equipment protected. This article explains how to measure inflow, calculate total dynamic head, and select a…
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…