Centrifugal Pumps

what is the centrifugal pump

Centrifugal pumps are the most common and straightforward hydraulic equipment used across various industrial applications. They efficiently transfer fluids, including water, oils, and solvents, through converting electrical energy into mechanical energy. Their versatility, reputation for reliability and ability to provide a smooth flow make them a preferred choice in many industries. Centrifugal pumps come in different sizes and configurations, including single-stage for low-pressure applications, two-stage for medium-head tasks, and multi-stage pumps for high-head operations, catering to a wide range of fluid transport needs.

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How does a centrifugal pump work?

The centrifugal pumps come in many shapes and sizes and consist of a pump and a motor. The electrical motor allows us to convert electrical energy into mechanical energy; the mechanical energy is used to drive the pump and move the liquid. The pump pulls the liquid in through the inlet and pushes it out through the outlet.



Centrifugal pumps are categorized based on stage, suction type, split case, shaft orientation, and standard specifications.The classification of centrifugal pumps by stage depends on the device’s number of impellers.

  • Single-stage: The single-stage centrifugal pump has just one impeller housed within its casing. This makes it ideal for low-pressure operations as it maintains a substantial flow rate.
  • Two-stage: This centrifugal pump type has two impellers functioning together to pump liquids. This device is well-suited to medium head applications.
  • Multi-stageMulti-stage pumps have three or more impellers used to achieve optimal efficiency. This particular centrifugal pump is recommended for high-head applications.
The Bell & Gossett Series 60 is a maintenance-free pump and motor design.

Benefits of the centrifugal pump

Centrifugal pumps offer many benefits. These include:

Ease of maintenance: Centrifugal pumps have low routine maintenance requirements. They have fewer moving parts than other pumps, which means less maintenance, lower costs and reduced downtime.

Smooth flow: Often, with conventional fluid-flowing pumps, they can pulsate, which can cause vibrations in piping systems. This concern is not associated with centrifugal pumps, as they can effectively mitigate this problem. 

Wide range of sizes: Unlike other pumps, it occupies much less floor space for the same capacity. If you’d prefer a centrifugal pump with a large capacity, all you need to do is amplify the impeller speed and adjust the inlet diameter and outlet diameter accordingly.

Application Versatility: Centrifugal pump configuration is not a one-size-fits-all deal for all applications. The pumps can be adjusted to meet varying industry needs depending on the project. At Tricel, we offer a diverse range of pumps suited for multiple uses and catering to various project requirements.


Factors to Consider When Choosing a centrifugal Pump

Range and Condition

Centrifugal pumps are most efficient and minimise energy consumption when they operate in close proximity to their Best Efficiency Point (BEP). Operating outside this range can result in diminished efficiency, heightened energy usage, and premature wear and tear on the pump.


When it comes to selecting the appropriate size for a centrifugal pump, the flow is a crucial factor to consider. There are various ways to measure the flow, such as m³ per hour, litres per second, or gallons per minute.

Suction Height

The suction height is the distance between the start of the suction tube and the centrifugal pump. If this height exceeds ten metres, it is advisable to either choose or consider using a submersible pump.

Technical Support

Tricel is a premiere authorised supplier for Grundfos. The technical knowledge available to our customers via our own technical engineers, in addition to our close relationship with Grundfos support teams, provide an exceptional after sales support line for each of our customers.


Recent Projects Completed 

Tricel is one of the largest UK pump distributors specialising in Commercial Building Services projects. We offer a wide range of products from circulator pumps to Wet Riser booster sets.

Our team includes experts which are happy to select and quote your equipment requirements, or attend site and size the equipment from scratch. We at Tricel pride ourselves on the highest possible levels of customer service, before, during, and after project completion.

We provide preventative maintenance contracts and also cater for specific repairs, including replacements seals, or complete overhauls.






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