Water pump is indispensable in agriculture, industry, mining and urban life. There are many types of water pumps. So how to confirm the suitable pump type?
1. Choose water pump according to local conditions. There are three types of commonly used agricultural pumps, namely centrifugal pump, axial flow pump and mixed flow pump.
The head of centrifugal pump is high, but the water output is not large, which is suitable for mountainous area and well irrigation area.
The water output of axial flow pump is large, but the head is not too high, which is suitable for use in plain area.
The water output and head of mixed flow pump are between centrifugal pump and axial flow pump, which is suitable for use in plain and hilly area.
Users should choose according to the land conditions, water sources and water lifting height.
2. The water pump shall be selected properly over the standard.
After determining the type of water pump, its economic performance should be considered, especially the selection of head and flow of water pump and its supporting power.
It must be noted that the head (total head) indicated on the water pump label is different from the outlet head (actual head) in use, which is due to certain resistance loss when water flows through the water pipe 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, it can only be estimated according to 80% - 90% of the head and flow indicated on the nameplate. The selection of the matching power of the water pump can be based on the power indicated on the nameplate.
In order to make the water pump start quickly and use safely, the power of the power machine can be slightly greater than the power required by the water pump, which is generally about 10% higher. If there is power, when selecting the water pump, the power of the power machine can be pressed Purchase the matching water pump.
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