How to choose the pump?

1. Choose and buy pumps according to local conditions. Commonly used agricultural water pumps have three types, namely centrifugal pump, axial flow pump and mixed flow pump. Centrifugal pump head higher, but the water output is not large, suitable for mountainous areas and well irrigation areas; The water output of the axial flow pump is large, but the head is not too high, suitable for use in plain areas; The water output and head of the mixed flow pump are between the centrifugal pump and the axial flow pump, which is suitable for plain and hilly areas. The user should base ground condition, water source and carry water height undertake choose and buy.

2. To appropriately select the water pump. Determine the type of pump, to consider its economic performance, especially to pay attention to the pump head and flow and its supporting power selection. It must be noted that there is a difference between the head (total head) indicated on the pump label and the discharge head (actual head) when in use, because there will be some loss of resistance when water flows through the pipeline and near the pipeline. Therefore, the actual head is generally 10% - 20% lower than the total head, and the water output is correspondingly reduced. Therefore, in actual use, only 80% ~ 90% of the head and flow can be estimated according to the label. For the selection of supporting power of the pump, the power of the power machine can be selected according to the power indicated on the label. In order to make the pump start quickly and use safely, the power of the power machine can be slightly higher than the power required by the pump. If there is a power, the purchase of a pump, then according to the power of the power machine to buy matching pumps.

3. Strict procedures to buy water pumps. When the choose and buy to want to examine "3 card", namely agricultural machinery promotion license, production license and product examine a certificate, only 3 card together can avoid to buy eliminate product and inferior product.