Single Stage Pump vs. Multistage Pump: Which is the Right Choice For You?

Posted by angroup on September 23, 2022
multistage-pump

The main difference between single-stage and multi-stage centrifugal pumps is the number of impellers they have, which is called the number of stages of the pump in industrial centrifugal pump industry terms. As the name suggests, single-stage pumps have only one impeller, while multi-stage pumps have two or more impellers. The main difference between single-stage and multi-stage centrifugal pumps is the number of impellers they have, which is called the number of stages of the pump in industrial centrifugal pump industry terms. As the name suggests, single-stage pumps have only one impeller, while multi-stage pumps have two or more impellers

Multistage centrifugal pumps operate by feeding one impeller into the next. As the liquid advances from one impeller to the next, the pressure increases while maintaining the flow rate. The number of impellers required depends on the discharge pressure requirements. The multiple impellers of the multi-stage pump are all mounted on the same shaft and rotate, essentially like separate pumps, and the multi-stage centrifugal pump can be regarded as the sum of the single-stage pumps.
Since a multi-stage pump builds the load by relying on multiple impellers to distribute the pressure of the pump, it can produce more power and higher pressure with a smaller motor and is therefore more energy efficient.

Let's use a table to compare single-stage and multi-stage pumps

Single-stage centrifugal pumpMulti-stage centrifugal pump
only one impellermultiple impellers
low-pressure headhigh-pressure head
simple structurecomplicated structure

Which is the Right Choice For You?

Which type of water pump is better, is mainly based on field operation data and actual needs to decide. According to the head height, choose a single-stage pump or a multi-stage pump. If single-stage and multi-stage pumps can also be used, single-stage pumps are preferred.

Compared with the multi-stage pump with a complex structure, high maintenance, and very difficult installation, the advantages of the single pump are very obvious. The single pump is simple in structure, small in size, stable in operation, and easy to maintain.

Common multistage centrifugal pumps

Horizontal Multistage Centrifugal Pump

Multistage PUMP

Vertical Multistage Centrifugal Pump

vertical-multistage-centrifugal-pump

Common single-stage centrifugal pump

End suction pump

end-suction-pump
In-line pump
vertical-pipeline-pump
Need help selecting the right centrifugal pumps for your application?
Contact us at anpump5@angroupcn.com or +86 15032857866;
Our technical sales engineers have extensive product knowledge and will be able to help you.

learn more centrifugal pumps also read

What is a centrifugal pump

How Multistage Centrifugal Pumps Work

Single suction pump vs. double suction pump

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