A single stage single suction centrifugal pump is called a single stage single suction centrifugal pump, where water enters the impeller from an axial direction on one side and there is only one impeller. Its characteristics are that compared with mixed flow pumps and axial flow pumps, it has a higher head, smaller flow rate, simple structure, and convenient use.
It is a single stage double suction centrifugal pump that feeds water from both sides of the impeller. As the pump cover and body are assembled using horizontal seams, it is also known as a horizontally split centrifugal pump. Compared with single stage single suction centrifugal pumps, it has high efficiency, large flow rate, and higher head. But it is large and relatively bulky, usually used for fixed operations. Suitable for irrigation areas with moderate areas in hills and plateaus, as well as for factories, mines, urban water supply and drainage, etc.
Compared to a single stage pump, the difference lies in the fact that a multi-stage pump has more than two impellers, which can absorb and press water in stages and multiple times, thereby lifting the water to a very high position. The head can be increased or decreased according to the number of stages of the pump impeller as needed. Multi stage pumps are mainly used for mine drainage, urban and factory water supply, and are rarely used for agricultural irrigation. They are only suitable for lifting water in high lift and low flow mountainous areas to solve the problem of drinking water for humans and livestock. There are two types of multi-stage high center pumps: vertical and horizontal. The main models include D-type and DL type multi-stage centrifugal pumps, and DW and DWL type small multi-stage centrifugal pumps.
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