Centrifugal Pumps
Verified by Mel Sykes, Industrial Supply Chain Specialist - April 2026
| Specification | Details |
|---|---|
| Types | End suction, split case, multistage, self-priming |
| Standards | ISO 2858, ISO 5199, API 610 |
| Materials | Cast iron, stainless steel 316, bronze |
| Brands | Grundfos, KSB, Lowara, DAB |
What are Centrifugal Pumps?
Centrifugal pumps are mechanical devices that move liquids through a system by converting rotational energy into hydraulic energy. They consist of an impeller attached to a shaft and enclosed in a casing. The impeller rotates, creating centrifugal force that pushes liquid outwards, increasing its velocity and pressure.Types and variants
Centrifugal pumps come in various types suited for different applications:- End Suction Pumps: Commonly used in residential settings due to their compact size. They typically handle flows up to 20 m³/h with heads up to 35 meters.
- Split Case Pumps: Ideal for high-flow industrial processes, these pumps have casings split along the centerline and can manage flow rates of over 1000 m³/h at pressures reaching 6 bar.
- Multistage Pumps: Designed for deep-well applications or systems requiring significant pressure. These pumps feature multiple impellers stacked in series, capable of producing heads up to 350 meters.
- Self-Priming Pumps: Useful in wastewater treatment plants where the fluid level is below the pump. They can draw water from a dry well and operate without manual priming.
Materials and specifications
Centrifugal pumps are manufactured using different materials depending on their application:- Cast Iron (EN-GJS-400): Suitable for non-corrosive environments, offering durability at low costs.
- Stainless Steel 316 (AISI 316): Resistant to corrosion and high temperatures, making it ideal for chemical processing and seawater applications. It adheres to ISO 2858 standards.
- Bronze: Provides excellent wear resistance and corrosion protection in harsh environments like water treatment facilities.
Selection criteria
Choosing the right centrifugal pump depends on several factors:- Flow Rate: Measured in m³/h, this determines how much liquid the pump can handle per hour.
- Head Pressure: Specified in meters or bar, indicating the height to which the pump can lift water vertically and the pressure it generates.
- Material Compatibility: The chemical properties of the fluid being pumped dictate the material used for construction-stainless steel 316 for corrosive liquids, cast iron for clean water.
- Environmental Conditions: Temperature ranges (up to 200°C) and ambient conditions influence material selection.
UK suppliers
MLC lists verified suppliers registered with Companies House:- Grundfos offers a wide range of end-suction pumps compliant with ISO standards.
- KSB provides strong split case and multistage pumps for industrial use, adhering to API 610 specifications.
- Lowara is known for its high-efficiency self-priming centrifugal pumps suitable for wastewater management.
Common applications
Centrifugal pumps are used in numerous industries:- Water Treatment: For removing impurities and transferring water through filters. They operate within a temperature range of 5°C to 40°C.
- Chemical Processing: Handling corrosive liquids with stainless steel models, ensuring safety from chemical reactions.
- Oil Refining: High-pressure pumps are critical for moving crude oil and refined products in pipelines, meeting stringent API standards.
Centrifugal Pumps play a vital role across various sectors by efficiently transferring fluids under diverse conditions.
References
Verified UK Suppliers
| Company | Company No. | Location |
|---|---|---|
| Mixall Limited | 12469076 | Bredgar Road, Gillingham, ME8 6PL |
| Green Energy Engineering Ltd | NI601109 | 198a Lurgan Road, Dromore, BT25 1HL |
| Motor Technology Ltd. | 01895277 | Motec House Chadkirk Business Park, Romiley, Stock |
| Motors Fans And Pump Solutions Limited | 05042981 | 87 North Road, Parkstone Poole, Dorset, BH14 0LT |
| J.B.J. (Techniques) Limited | 01185469 | 28 Trowers Way, Holmethorpe Industrial Estate, Red |
Frequently Asked Questions
What are Centrifugal Pumps?
Centrifugal Pumps are engineering components used in industrial applications. Browse verified UK suppliers on MLC.
Where can I buy Centrifugal Pumps in the UK?
MLC lists verified UK centrifugal pumps suppliers with Companies House data. Browse by product category or search by location.
What are the main types of Centrifugal Pumps used in industrial settings?
The main types include end suction pumps for compact applications and split case pumps for high-flow processes. Split case pumps have casings that can be split along the centerline, making them suitable for large-scale industrial use.
How do I choose between different variants of Centrifugal Pumps based on material requirements?
When selecting materials, consider the liquid being pumped to avoid corrosion or wear. Cast iron is cost-effective but may not be suitable for aggressive chemicals. Stainless steel 316 and bronze offer better resistance for harsh environments.
What are the standard certifications that Centrifugal Pumps must adhere to in the UK?
Centrifugal pumps should comply with international standards such as ISO 2858, ISO 5199, and API 610. These ensure reliability and safety across various applications.
Which brands of Centrifugal Pumps are popular among UK engineers for their quality and performance?
Popular brands include Grundfos, KSB, Lowara, and DAB. Each brand offers specific models that cater to different needs in terms of efficiency and durability.
What factors should I consider when deciding between end suction and split case Centrifugal Pumps?
End suction pumps are ideal for smaller applications with lower flow requirements, while split case pumps excel in high-flow industrial processes due to their strong design and ease of maintenance.
Where can UK engineers find reliable suppliers for Centrifugal Pumps that meet the latest standards?
Engineers should look for suppliers listed under ISO 2858, ISO 5199, and API 610 compliance. Brands like Grundfos and KSB provide certified products suitable for industrial use.
How does the cost of a Centrifugal Pump vary based on its type and material?
The cost of a centrifugal pump varies significantly depending on materials; cast iron models are more affordable, while stainless steel 316 pumps offer higher durability but come at a premium price. End suction types tend to be less expensive than split case pumps due to their simpler design.
What are the common applications for self-priming Centrifugal Pumps in industrial environments?
Self-priming centrifugal pumps are used where the liquid is below pump level and requires initial suction capability, such as in sewage treatment plants or chemical processing facilities. They can handle both liquids and gases effectively.