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

Here is the small $$12 \; V$$ pump that I am looking at. The manufacturer called the product as DC brushless centrifugal circulation small water pump but under its description it mentions that it is a single stage pump.

I wonder what the difference is? Is it a misleading description or title or do those terms are used interchangeably?

• No, it's not misleading, and they are not interchangeable. You can have two stage centrifugal pumps, and single stage non-centrifugal pumps. The number of stages is its own independent property. Mar 18 '21 at 13:06
• @JonathanRSwift Hi Jonathan, thanks for commenting. So it is not a centrifugal pump? The title says it is? I am confused. Mar 18 '21 at 13:08