Just pick the pump with the highest efficiency! Right?” That’s the line of reasoning most novice pump professionals will follow. Efficiency is king! The most efficient pump will use the least amount of power, and run the best! All of that is true. Except when it isn’t. Sometimes the Design Condition Should NOT Fall at … Read more

What are the things you look for when making a pump selection? Which selection offers the highest efficiency at the rated condition? Does the operating condition fall near the pump’s best efficiency point? Which selection requires the smallest motor rating? While those are all great factors to consider, NPSH is another factor that you must … Read more

Years ago, making a pump selection meant sitting down with large printed catalogs and flipping through them until you reached a pump curve that fit a project’s hydraulic requirements. Today this process is made much easier through the use of electronic pump curve catalogs. One of the most well-known developers of electronic pump catalogs is … Read more

In a previous article, we discussed some common impeller and casing designs. This article will consider what happens when you put the two together. After reading this post, if you’d like to learn more about these types of pumps and other common pump types, check our page about common pump designs. End-Suction Pumps The most … Read more

When you boil them down to the most fundamental components, pumps are made up of two components: An impeller which creates velocity through rotation, And a casing which converts velocity into pressure. There are different types of impellers and different types of casings. The way that different types of impellers and casings are combined produces … Read more

Wikipedia defines a centrifugal pump like this: Centrifugal pumps, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. [1] Centrifugal pumps are used to transport liquids/fluids by the conversion of the rotational kinetic energy to the hydro dynamics energy of the liquid flow. The rotational energy typically comes from an engine or electric motor or turbine. … Read more