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October 2025

What does ISO 2858 mean?

ISO 2858 is an international standard that defines the dimensions, tolerances, and ...
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October 2025

Head, Pressure, and the SI System: A Simple Guide for Engineers

Why Head and Pressure Matter? In fluid dynamics and pump systems, head and pressure are ...
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March 2025

What is the difference between NPSHa and NPSHr?

Let’s start with what NPSHa and NPSHr mean. NPSHa stands for Nett Positive Suction ...
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March 2025

Utilising Inverters with Industrial Pumps

Utilising inverters with industrial pumps. In the commercial building services sector, ...
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March 2025

Pump affinity laws

What are the Affinity Laws? The pump affinity laws are a set of formulas that help ...
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March 2025

Understanding Viscosity - Technical Briefing

When people talk about understanding viscosity, they are talking about one of two things: ...
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March 2025

Pump performance curve & system curve

We recently wrote an article on how to read the information presented on a standard ...
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March 2025

Is there a difference between centrifugal and rotodynamic pumps?

Pumps often have the label as either centrifugal or positive displacement. But, you have ...
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March 2025

Understanding the Pump Curve: A Guide to Centrifugal Pump Performance

This may seem a basic topic but if new to selecting centrifugal pumps it is an essential ...
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March 2025

Head vs Pressure - Technical Briefing

A History Lesson Around 400 years BC the Greek Philosopher Aristotle proposed a theory ...
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