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Centrifugal Pump Guide

Guide To: Centrifugal Pumps


At TS Pumps we supply an impressive range of Centrifugal Pumps suited to a variety of applications, such as industrial and hygienic to name but a few.

Our Salvatore Robuschi range is ideal for large industrial applications such as purification and waste removal. We also have a range of smaller Centrifugal Pumps that include Hygienic, Industrial, Self-Priming and Vertical Immersion Centrifugal Pumps.

What is a Centrifugal Pump?

An incredibly versatile pump, the Centrifugal Pump is a type of process pump that is designed to move fluids by means of the transfer of rotational energy from one or more driven rotors, called impellers.

Fluid enters the rapidly rotating impeller along its axis and is cast out by centrifugal force along its circumference through the impeller’s vane tips.  The action of the impeller increases the fluid’s velocity and pressure, directing it towards the pump outlet.  The pump casing is specially designed to constrict the fluid from the pump inlet, direct it into the impeller and then slow and control the fluid before discharge.


How does a Centrifugal Pump work?

Standard Centrifugal Pumps are not self-priming, but those that are have an extra component built in. Therefore, standard Centrifugal Pumps require their casing to be filled with liquid before they can be started, which allows the pump to have a positive suction head ensuring that the pump operates efficiently.

When the pump starts, the liquid within the pump enters the pump casing at the eye of the impeller. As the impeller rotates, it generates a centrifugal force which draws your product through the pump casing towards the discharge port. As the fluid moves towards the discharge outlet, it creates a low-pressure point at the eye of the impeller which ensures that the pumping cycle is continued by creating suction to draw in fluid from the inlet port.


What options are available for a Centrifugal Pump?

Our Centrifugal Pumps are available in 3 different materials:

They are also available as 2 different drive options:

Self-Priming Centrifugal Pump

Our Centrifugal Pumps are available as standard or as Self-Priming Centrifugal Pumps. We supply 2 types of Self-Priming Centrifugal Pumps, Industrial and Hygienic. Both pumps are electrically driven, handling a flow rate up to 58 m³/hr and pressures up to 40m.

Self-Priming Centrifugal Pump

Self-Priming Centrifugal Pump

Vertical Immersion Centrifugal Pump

We supply Immersion Centrifugal Pumps in 3 different materials, either Stainless Steel AISI 316L or PP and PVDF.

The Immersion Centrifugal Pump is an extremely reliable pump that has been manufactured with the motor above the liquid surface, meaning this pump can replace a self-priming pump. The pump is designed without the need for mechanical seals or bearings which makes the Immersion Centrifugal almost maintenance free.

Depending on the model and size of your Vertical Immersion Centrifugal Pump, the pump can handle solids up to 6mm in diameter and be submersed to a depth of 419 to 425mm.

Vertical Immersion Centrifugal Pump

Vertical Immersion Centrifugal Pump


What are the benefits of using a Centrifugal Pump?

There are so many benefits that are specific to the various Centrifugal Pumps range thanks to its versatility.

Some of these benefits include:


What industries and applications can a Centrifugal Pump be used for?

Centrifugal Pumps are known for their versatility which allows these pumps to be used for multiple applications across a wide range of industries such as:


Industries requiring hygienic applications:

Are you in the Beer Industry? Have a look at our Beer Pump Guide.

For the specific list of industries and applications most suited to each pump, visit the individual product pages, or you can access the full range here: Small Industrial Centrifugal Pumps.


Maintaining a Centrifugal Pump

When maintaining a Centrifugal Pump, it’s important to look out for any wear and tear to the pump casing. You should also look at the flow, pressure and temperature within your pump.

Typically, mechanical seals in a Centrifugal Pump require very little maintenance. However, if there is a leakage or the pump has run dry for any time at all, we recommend replacing the mechanical seal within your Centrifugal Pump as soon as possible.



Cavitation occurs in Centrifugal Pumps when the NPSHa is lower than the NHSHr causing the formation and accumulation of bubbles around the impeller eye that then collapse resulting in a series of mini implosions and significant damage to both the impeller and casing.

To avoid cavitation:

  1. Operate the pump as close as possible to its BEP, which can be achieved by:
  1. Reduce the fluid temperature
  2. Maintain filters that are installed on the suction and discharge lines
  3. Check your product and suction pipework to ensure they don’t contain air



Can a Centrifugal Pump run dry?

Unfortunately not. Even running your pump dry for a short amount of time will damage the mechanical seal within your Centrifugal Pump. This will also cause the motor to burn out. The good news is that this can be avoided by ensuring your pump has flooded suction, unless your pump is self-priming. If you think dry running is a risk during the operating of your pump, we recommend a form of Dry Run protection for your pump installation.

What dry run protection can we offer for a Centrifugal Pump?

If you are worried about your Centrifugal Pump running dry, we offer Dry Run protection for Centrifugal Pumps. This is often in the form of a system within the installation that monitors the pressure of the fluid within the pump and will switch the pump off when the pressure drops.

If flooded suction isn’t ideal for your industry, head over to our Self-Priming Centrifugal Pump page.

Can a Centrifugal Pump handle solids?

Our range of Centrifugal Pumps can typically handle solids up to 6mm in diameter.

What is a Centrifugal Pump’s BEP?

Failing to run your Centrifugal Pump to its BEP (best efficiency point) can cause a list of problems for your pump, including reducing the life span of your pump seals, bearings and impeller. This includes running your pump too far either side of the BEP, either too low or too high. BEP ensures that your Centrifugal Pump is running as efficiently as possible which reduces energy costs, improves pump life and lowers maintenance costs.

The Centrifugal BEP is typically marked on the performance curve provided with your pump. Contact our sales team if you need assistance in finding out the BEP for your Centrifugal Pump.

How to spec a Centrifugal Pump?

In order to spec your Centrifugal Pump, the first piece of information that we’ll need is the application you’re pumping. We need to know exactly what you want your pump to achieve. We’ll also need to know if you’ve got any additional requirements specific to your application, such as if you require the pump to be ATEX rated. This may be needed if pumping hazardous products, or if the pump is situated in a hazardous environment.

We’ll also need to know the following details:


At TS Pumps we specialise in the supply and service of industrial pumps and systems into key industries and markets, so if this pump isn’t quite right for you, you can read more about our full range of Centrifugal Pumps here or contact our team today to discuss your business requirements.


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