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How does a coolant pump work?

Think you might need a coolant pump? You’ve come to the right place. By coolant pumpleaning on our years of experience in the pumps industry, we have created this post that will tell you everything you need to know about coolant pumps. For everything from sizing requirements to compatibility with different materials, you’ll find it all here.

What is a coolant pump?

As you can probably guess by the name, the role of the coolant pump is to ensure that coolant is distributed evenly throughout the structure in which it is situated. Coolant is any substance (generally speaking a liquid or gas though) that is used to regulate the temperature of a system. In industrial processing, the term ‘heat transfer fluid’ often replaces the term ‘coolant.’ Coolant pumps are used in a range of industries, which has led coolant pumps to specialise in a number of different ways.  Typically though, a coolant pump is a submersible multistage centrifugal pump. Put in simpler terms, a coolant pump is capable of operating fully submerged in liquid, and works by imparting energy from the rotation of multiple shaft-driven impellers to the coolant.

Secondly, it is important to differentiate machine tool coolant pumps (which are the kind we deal in here at Pump Sales Direct) from the coolant pumps you might find in your car, or further still, in a nuclear reactor. Although functionally similar - they all work by pumping a coolant around - there are a number of subtle differences that distinguish them from one another in practice. A coolant pump designed for a pressurised water reactor for example, is more elaborate and technical as it needs to be able to transfer heat in a steam generator to water across different pressure circuits. Meanwhile, in car engines and machine tools, the role of the coolant pump is more straightforward as they are only needed to circulate coolant irrespective of pressure differentials.

How do I know if I need a coolant pump? And if so, what kind do I need?

Because coolant pumps have so many industrial applications (everything from boiler feeds to industrial washing machines) it can be difficult to work out whether you actually require one, and narrowing it down to a specific model can be even tougher. However, once you have established your flow, pressure and length requirements, picking out the right coolant pump is relatively uncomplicated. On the other hand, if you are still unsure when it comes to the technical details, the flexibility of the Grundfos range of SPK coolant pumps makes them a feasible choice in a multitude of scenarios.

At Pump Sales Direct, alongside the very popular Grundfos SPK range, we stock a variety of machine tool coolant pumps. Have a look at this extensive range of machine tool coolant pumps here.

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