What is the difference between multi-stage pumps and single-stage pumps?


A multi-stage pump is a type of pump that uses multiple impellers to increase the pressure of the water it pumps. It can produce higher pressures than a single-stage pump, but it is also more expensive and requires more maintenance. Single-stage pumps are simpler, cheaper, and require less maintenance, but do not produce as high a pressure as multi-stage pumps.

Multi-stage pumps vs single-stage pumps difference

1. A single-stage pump refers to a pump with only one impeller, and the maximum lift is only 125 meters;
2. Multi-stage pumps refer to pumps with two or more impellers, and the highest head can exceed 125 meters; multi-stage pumps can be increased by increasing the number of impellers when the head of a single-stage pump needs to be equipped with two-stage motors. It is equipped with a four-stage motor, which can improve the service life of the pump and reduce the noise of the unit, but the maintenance of multi-stage pumps is more difficult than that of single-stage pumps.
3. When the actual head of the pump is less than 125 meters, the choice of single-stage pump or multi-stage pump can be comprehensively considered according to the pump room area, pump price (multi-stage pumps are generally higher than single-stage pumps), and other factors.

With the advancement of technology, the single-stage impeller pump can increase the head of the pump by increasing the speed of the pump, and can replace the multi-stage pump, but the price is a little more expensive.
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