20/09/2023

Why Are Centrifugal Self-Priming Pumps Safer To Operate?

Industrial Pump

In industrial pumping, centrifugal self-priming pumps are a type of pump that can draw in fluid from a source that is below the level of the pump. This makes them ideal for high-industrial pumping applications, where the pump may be located above the fluid level.

If you are looking for pumping solutions, there are many reasons why centrifugal self-priming pumps are safer to operate than other types of pumps in industrial applications.

1. They are less likely to airlock

An airlock occurs when air gets trapped in the pump, preventing the fluid from flowing. This can damage the pump and create a safety hazard. Centrifugal self-priming pumps, when fitted, have a purpose-built solid handling air release valve and are less likely to airlock because they have a built-in mechanism for removing air from the suction line. When correctly installed the air release mechanism is 100% reliable.

2. They can operate in dirty or contaminated fluids

Centrifugal self-priming pumps can operate in dirty or contaminated fluids without the risk of damage. This is because only the suction line is in the liquid. The pump and motor are mounted at a high level away from the pump well. The motors used are standard foot-mounted parallel shaft type connected to the pump with either a vee belt drive arrangement or direct long coupled drive arrangement. This means there is no risk of contamination to the motor even if the pump mechanical seal fails. The housing is typically made of cast iron or stainless steel, both of which are corrosion-resistant materials.

3. They are easier to maintain

Nobody wants more downtime than necessary, which is why centrifugal self-priming pumps must be easier to maintain than other types of pumps. This is because they are mounted high and dry out of the liquid and do not require lifting equipment or confined space entry for maintenance.

4. They are more versatile

Centrifugal self-priming pumps can be used in a wider variety of pumping solutions than other types of pumps. This makes them a more versatile choice for many industrial applications. Centrifugal self-priming pumps can be used to pump a variety of fluids, including water, oil, chemicals, and sewage. They can also be used to pump fluids over a wide range of pressures and flow rates.

As with all industrial pumping solutions, on top of the benefits of a centrifugal self-priming pump, it is always important to consider additional safety considerations when operating your pumping solutions, including:

  • Always follow the manufacturer's instructions carefully

  • Make sure the pump is properly installed and maintained

  • Do not operate the pump if it is damaged or leaking

  • Keep the pump area clean and free of debris

  • Disconnect the power to the pump before performing any maintenance or repairs.

By following these safety considerations, you can help to ensure the safe operation of your pump.

Pump Selector

How do you select the right pumping solutions for you?

When selecting a centrifugal self-priming pump for industrial applications, there are several factors to consider, including:

  • The fluid being pumped: The fluid's viscosity, abrasiveness, and corrosiveness will affect the type of pump that is needed

  • The desired pressure: The higher the desired pressure, the more powerful the pump will need to be

  • The flow rate: The flow rate is the volume of fluid that the pump needs to move per unit of time

  • The operating temperature: The pump must be able to operate at the temperature of the fluid being pumped

  • The suction system: The suction conditions must be within the capability of the pump in terms of priming capability and NSPH (net positive suction head). Our experienced team of technical experts can advise on this.

Pumping Solutions

Centrifugal self-priming pumps are just one part of a pumping solution. Other components, such as valves, pipes, and hoses, are also important. The entire system must be designed and installed properly to ensure safe and efficient operation.

Centrifugal self-priming pumps are a safe and versatile choice for industrial pumping applications. By carefully selecting the right pump and other components, you can create a pumping solution that meets your specific needs.


By following these tips, you can help keep your pumps running safely and efficiently for many years to come. At Hydromarque, we offer comprehensive pumping solutions, so contact us today to find out about our industrial pumps.

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