Centrifugal pumps are the most widely used pump type in industry, agriculture and building services. They use a rotating impeller to convert motor energy into fluid velocity and pressure, moving liquids quickly and efficiently through piping systems. From clean water transfer to aggressive chemical duty, centrifugal pumps handle it all.
At TF Pumps we supply centrifugal pumps from all the leading European manufacturers, Calpeda, Ebara, Lowara, Pedrollo, Varisco and more, in cast iron, stainless steel and engineered plastic construction. Whether you need a compact centrifugal water pump for domestic or light commercial use, or a heavy-duty industrial unit, browse our ranges below or call us on +44 1332 913500 for help selecting the right pump.
We also have dedicated pages for Magnetic Drive pumps, Flexible Impeller pumps and Multistage Pumps.
A centrifugal pump is a rotary pump that uses a spinning impeller to move liquid. Fluid enters at the centre (eye) of the impeller, is accelerated outward by centrifugal force, and discharges into a volute or diffuser casing where velocity is converted into pressure. The result is a continuous, smooth flow of liquid at the required head and flow rate.
Centrifugal pumps are valued for their simplicity, reliability and efficiency across a huge range of duties. They have very few moving parts, typically just the impeller and shaft, which means low maintenance and long service life. They are the default choice for any application that involves moving clean or mildly contaminated liquids at moderate to high flow rates.
The centrifugal pump impeller is the rotating component at the heart of the pump, its shape, diameter and vane configuration determine the pump’s flow rate, head and solids-handling capability. Impellers are available in open, semi-open and closed designs to suit different applications. For a detailed explanation of how centrifugal pumps and their impellers work, see our guide: How Do Centrifugal Pumps Work?
End suction pumps: the most common configuration. Liquid enters axially through the suction eye and discharges radially from the top of the casing. Compact, cost-effective and easy to maintain, end suction centrifugal pumps suit the vast majority of commercial and industrial clean-water duties.
Self priming centrifugal pumps: designed to evacuate air from the suction line and prime themselves automatically without manual intervention. Essential where the pump sits above the liquid source and the suction line may contain air on start-up. A self priming centrifugal pump recirculates liquid internally to expel air before entering normal pumping mode, making it ideal for surface-mounted applications, tank emptying and irrigation.
Stainless steel centrifugal pumps: constructed in 304 or 316 stainless steel for corrosion resistance, hygiene and durability. A stainless steel centrifugal pump is specified wherever the liquid is aggressive, high-temperature, or requires sanitary construction, food and beverage, pharmaceutical, chemical processing and potable water applications.
Close-coupled and long-coupled pumps: close-coupled designs mount the impeller directly on the motor shaft for a compact footprint. Long-coupled pumps use a separate bearing frame and coupling, allowing the motor to be replaced independently. Both are widely used; the choice depends on space, maintenance access and motor specification.
Selecting the right centrifugal pump means matching the pump’s performance curve to the system’s duty point, the intersection of required flow rate and total head. Key inputs are the flow you need (in m³/hr or l/s), the total head (static lift plus friction losses plus residual pressure), the liquid being pumped (water, chemical, slurry), its temperature, and the available power supply.
Material selection matters too: cast iron for clean water, stainless steel for aggressive or hygienic duties, and engineered plastics for specific chemical resistance. As independent specifiers we supply centrifugal pumps from Braude, Calpeda, Ebara, Enviroflex, Lowara, Pedrollo, Pentair, Pentax and Varisco, so you get the right pump for the job, not the brand we happen to distribute. Call us on +44 1332 913500 with your duty details and we’ll specify correctly.
Want to understand centrifugal pump technology in more depth? These guides from our blog cover the engineering detail:
If your questions have not been answered here, get in touch with our team for more information.
Centrifugal pumps are used to move liquids through piping systems. Common applications include water supply and distribution, industrial process water, irrigation, HVAC systems, chemical transfer, and general fluid handling across virtually every industry. They are the default choice for any duty that involves moving clean or mildly contaminated liquids at moderate to high flow rates.
A centrifugal pump uses a rotating impeller to impart velocity and pressure to the liquid continuously. A positive displacement pump traps a fixed volume of liquid and forces it through the discharge. Centrifugal pumps suit high-flow, low-viscosity applications; positive displacement pumps suit high-viscosity liquids or duties requiring precise metering.
A self-priming centrifugal pump can evacuate air from the suction line and prime itself automatically without manual intervention. It recirculates liquid internally to expel air before entering normal pumping mode. This makes it ideal for surface-mounted installations, tank emptying, irrigation from open water sources, and any application where the suction line may contain air on start-up.
Choose stainless steel when the liquid is corrosive, high-temperature, or when hygienic construction is required, for example in food and beverage, pharmaceutical, chemical processing and potable water applications. 304 stainless suits most clean-water and mildly corrosive duties; 316 stainless offers greater resistance to chlorides and aggressive chemicals.
The centrifugal pump impeller is the rotating component that imparts energy to the liquid. As it spins, liquid is drawn into the centre (eye) and thrown outward along the vanes by centrifugal force, increasing velocity and pressure. The impeller’s diameter, shape, number of vanes and whether it is open, semi-open or closed determine the pump’s flow rate, head and solids-handling capability.
A well-specified, correctly installed centrifugal pump handling clean water typically lasts 10–20 years with routine maintenance. Pumps handling abrasive or corrosive liquids may have shorter service lives. Key wear items are the mechanical seal, bearings and impeller, all of which are serviceable without replacing the whole pump.
