The Purchase Of Agricultural Water Pumps

In recent years, with the adjustment of agricultural structure, farmers have made full use of the resources of low mountains, gentle slopes, and deserted beaches to develop high-efficiency agriculture on a large scale, but these plots are often difficult to irrigate by the artesian flow. Need to buy a water pump for irrigation. So, how to choose the right agricultural water pump?

First of all, it is necessary to choose a water pump according to local conditions. There are three types of commonly used agricultural water pumps, namely centrifugal pumps, axial flow pumps, and mixed flow pumps. The centrifugal pump has a high head, but the water output is not large, which is suitable for mountainous areas and well irrigation areas; the axial flow pump has a large water output, but the head is not too high and is suitable for use in plain areas; the water output and head of the mixed-flow pump are between those of the centrifugal pump. Between the axial flow pump, it is suitable for use in plains and hilly areas. Users should choose according to local ground conditions, water source, and water lifting height.

Secondly, it is necessary to properly select the pump that exceeds the standard. After determining the type of pump, its economic performance should be considered, and special attention should be paid to the selection of the pump’s lift and flow and its supporting power. It must be noted that there is a difference between the head (total head) indicated on the pump label and the water outlet head (actual head) during use because there will be a certain resistance loss when the water flow passes through the water pipe and the vicinity of the pipeline. Therefore, the actual head is generally 10% – 20% lower than the total head, and the water output is also reduced accordingly. Therefore, in actual use, it can only be estimated according to 80% to 90% of the lift and flow indicated on the sign. The choice of supporting power of the pump can be selected according to the power indicated on the sign. In order to make the pump start quickly and use safely, the power supply The power can also be slightly larger than the power required by the water pump, generally about 10% higher.
Finally, it is necessary to strictly purchase the water pump. When purchasing a water pump, it is necessary to check the “three certificates”, that is, the agricultural machinery promotion license, production license, and product inspection certificate. Only when the three certificates are complete can the purchase of outdated products and inferior products be avoided.

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