The common agricultural water pump type are the centrifugal pump, axial flow pump, mixed-flow pump, well pump, submersible pump, turbine pump and so on.
In agricultural production, should according to the requirements of different parts of the production conditions and choose different performance of drainage and irrigation machinery. In plain area, HeWangHua water abundant, wide field, autumn winter drought, summer rain, often encounter the heavy rain, heavy rain, waterlogged farmland, require rapid drainage. These areas due to the low-lying, water head is not high, but the irrigation or drainage carrying capacity is big, should adopt “low head and large flow” performance characteristics of axial flow pump. In the mountains, because the field is narrow, high water head, the flow is not big, appropriate chooses performance characteristic of high head, small flow centrifugal pump. In view of some mountainous steep mountain stream