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Multistage Pumps
Multistage Pumps
A multistage pump operates by one impeller feeding into the next impeller and the number of impellers depend on the discharge pressure requirement.

Multistage Pumps
Multistage Pumps are engineered to efficiently deliver high-pressure performance by utilising two or more impellers within the pump design. These impellers may be identical or customised for specific operational needs, such as low Net Positive Suction Head (NPSH) suction impellers, double suction impellers, or a combination of centrifugal and side channel impellers. This versatility makes multistage pumps an ideal solution for a wide variety of challenging pumping applications.
How Multistage Pumps Work:
Multistage pumps operate by having each impeller feed the next in a sequential stage. Liquid enters the pump at the suction point, passes through the first impeller, and then moves successively through additional impellers, each increasing the pressure incrementally. The total discharge pressure achieved is directly related to the number of stages (impellers)Â installed.
This staged pressure build-up allows multistage pumps to handle high-pressure, low-flow, and variable-pressure requirements efficiently and reliably.
Types of Multistage Pumps:
Horizontal Multistage Centrifugal Pumps:Â Designed for above-ground installations, these pumps are suitable for high-pressure applications with moderate space availability.
Vertical Multistage Centrifugal Pumps:Â Space-saving pumps ideal for limited floor space and systems requiring high head and continuous pressure.
Submersible / Sump Pump Types:Â Suitable for deep well, mining, and sump applications, often handling aggressive fluids.
Side Channel Pumps:Â Ideal for low flow, high head applications and capable of handling gases mixed with liquids.
Combination Pumps:Â Configured with multiple impeller types to handle complex pumping requirements.
Horizontal Split Case Pumps:Â Robust, easy-to-maintain pumps designed for high flow and moderate head.
Vertical Turbine Pumps:Â Efficiently handle deep suction lifts and large volumes, typically used in water supply and cooling towers.
Sanitary Multistage Pumps:Â Specifically designed for food, beverage, and pharmaceutical applications requiring hygienic standards.
Key Benefits of Multistage Pumps:
High Pressure Capability:Â Achieves significant discharge pressures through multiple stages.
Energy Efficient:Â Optimised for high head, low to moderate flow operations.
Versatile Configurations:Â Available in horizontal, vertical, submersible, and specialty sanitary designs.
Reliable Performance:Â Proven in demanding industrial and municipal environments.
Customisable Solutions:Â Can be tailored to meet specific flow rates, pressure, and fluid compatibility.
Typical Applications:
Boiler Feed Duties:Â Essential for delivering high-pressure water to boilers in power stations and industrial facilities.
Condensate Services:Â Used in condensate recovery systems in power plants and process industries.
Desalination Systems:Â Provides feedwater pressure for reverse osmosis plants in water treatment and desalination.
High-Pressure Water Supply:Â Supports general industrial processes requiring consistent high-pressure flow.
Dewatering in Underground Mines:Â Efficiently removes water from deep mine shafts and challenging underground environments.
Why Choose Multistage Pumps from Specialised Seals and Flow Solutions?
At Specialised Seals and Flow Solutions, we offer reliable, high-performance multistage pump solutions tailored to your application’s unique demands. Whether you require high pressure, energy efficiency, or a pump that meets strict sanitary standards, our experienced team can guide you to the best pump selection to optimise your system’s reliability and performance.
Flowserve SIHI, KSB Multitec, Standart SKM, Vogel, ITT Goulds, Capari, Speck, Sulzer