In recent years, with the adjustment of the agricultural structure, farmers have made full use of low-grade gentle slopes and wasteland resources to develop high-efficiency agriculture on a large scale, but these plots are often difficult to self-irrigation. Need to buy water pumps to raise water. So, how to choose the right agricultural water pump? The following tips for farmers' reference.

First of all, it is necessary to purchase water pumps for local conditions. There are three types of commonly used agricultural pumps, namely centrifugal pumps, axial pumps and mixed-flow pumps. The centrifugal pump has a high lift, but the output is not large, and it is suitable for mountainous areas and well irrigation areas. The axial pump has a large amount of water, but the lift is not too high. It is suitable for use in plain areas; the output and head of the mixed-flow pump are between centrifugal pumps. Between axial and axial pumps, suitable for use in plains and hills. The user must choose according to local conditions, water sources and lifting heights.

Second, we must properly exceed the standard pump. After determining the type of pump, it is necessary to consider its economic performance, paying particular attention to the selection of the head and flow rate of the pump and its supporting power. It must be noted that there is a difference between the head (total head) specified on the pump label and the outlet head (actual head) when used. This is due to a certain resistance loss when the water passes through the water pipe and near the pipeline. Therefore, the actual head will generally be 10% to 20% lower than the total head, and the water output will be reduced accordingly. Therefore, in actual use, only 80% to 90% of the lift and flow rate indicated by the signage can be estimated. The choice of the pump's supporting power can be selected according to the power indicated in the signboard. In order to make the water pump start quickly and use safety, the power machine The power can also be slightly larger than the required power of the pump, generally about 10% higher; if there is power, when purchasing the pump, the power pump can be selected according to the power of the power machine.

Finally, we must strictly purchase water pumps. When purchasing a pump, we must also verify the “three certificates”, namely the agricultural machinery promotion permit, production license, and product inspection certificate. Only when the three certificates are complete can we avoid the purchase of eliminated products and inferior products.

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