Overview of Multistage Centrifugal Pumps: Here’s All You Need to Know

Multistage centrifugal pumps have been growing in popularity in recent years. Many engineers choose them because of their flexible flow range and excellent energy efficiency.

But are they a right fit for you? Let’s find out.

What are multistage centrifugal pumps?

A multistage pump is a category of pump that contains 2 or more impellers that can be of the same or different types. The impellers can be mounted on the same or different shafts. In case the outlets require high pressure, the impellers can be connected in a series. For high flow output, they can be connected parallelly.

What is the difference between a single stage centrifugal pump and a multistage centrifugal pump? 

The primary difference between single and multistage centrifugal pumps are the number of impellers or stages present. As the name implies, single stage impellers have only one impeller whereas multistage pumps have two.

The impeller of a centrifugal pump helps pressurise and transfer the liquid. Since multistage pumps have multiple impellers, they have better pressure ranges and flow rates than single stage pumps.

Where are multistage centrifugal pumps used? 

Multistage centrifugal pumps have a wide range of applications. They can be used for delivering water to high-rise buildings, reverse osmosis (RO), boiler feeder water, high pressure cleaning, water works, fuel delivery, oil and gas production, mining and other industries where high pressure and temperature are necessary factors.

What are the different types of multistage centrifugal pumps?

There are several kinds of multistage pumps: 

  • Horizontal Multistage Centrifugal Pump
  • Vertical Multistage Centrifugal Pump
  • Submersible Pump
  • Horizontal Split Case Pump
  • Vertical Turbine Pump

What are horizontal multistage centrifugal pumps?

Horizontal multistage centrifugal pumps are those that have two or more impellers and where the liquid travels horizontally. In this case, each stage acts like a separate pump. These are ideal for services that require moderate to high Total Dynamic Head (TDH). A single horizontal shaft can house up to eight stages. 

What are vertical multistage centrifugal pumps?

Vertical pumps are not that extensively used as horizontal pumps and have limited applications. As the name implies, their orientation is vertical where the impellers are placed on top of each other. The clearances in vertical pumps are also smaller than horizontal ones which makes them suitable for clean water applications. Moreover, if there’s a floor space crunch, these pumps can fit in well too.

For more information on industrial pumps, motors, and other equipment, feel free to contact us at +91 98199 07445. We would be glad to assist you in finding the best match based on your requirements. VEMC is an authorized dealer of Kirloskar multistage centrifugal pumps and provides end-to-end project management services to its clients. We are ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services.