Choosing the correct pump is no easy task, non-specialists may often be overwhelmed by industry terminology and the endless options available.

There are many factors to take into account such as:

  • What fluid will the pump be dealing with?

This is one of the most important factors when selecting a pump, by identifying what pump is appropriate for handling the fluid at question, corrosion and unnecessary wear and tear on your pump can be avoided. What’s the consistency? Is it a slurry (thick suspension of solids in liquids), or is it a clear fluid?

  • Flow rate

To accurately select a pump, it is imperative that you know the flow rate. Measured in gallons per minute (GPM), although this may be translated into the pump diameter measurement. A higher flow rate, means a larger pump size is needed.

  • Viscosity

The viscosity of the fluid is also an important factor to take into account, high viscosity fluids require most robust pumping equipment.

  • Temperature

How hot will the fluid being pumped be? The temperature of the fluid will affect which pump materials are best suited for the application.

  • Pressure

Taking into account the pressure conditions on the inlet and outlet of the pump will also help determine what pump materials are best suited for the application.

Sourcing all of this information and comparing it with product offerings from many manufacturers may seem a very daunting task & 9/10 times it is best to speak to a specialist even if it is just for reassurance. However, it is still useful to be aware of different product ranges and what applications different pumps are suited for.


That is why we’re excited to reveal that we’ve teamed up with our Industry Partner, Grundfos to grant you with the ‘Pump Spotlight’ designed to give you a deeper insight into different pumps from the Grundfos product range.

  •  Find out which pumps from the product range are best suited to your desired application.
  • Determine the features of the vast Grundfos pump product range.

We will be bringing you one pump in the ‘spotlight’ every Friday, so keep an eye on the Cougar Pumps blog.