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How to choose a diesel clean water pump?

How to choose a diesel clean water pump?

Choosing a diesel clean water pump is actually choosing the right head and flow.
The so-called head refers to the required head, not the lifting height. It is particularly important to know this point when choosing a diesel clean water pump. The lift of the clean water pump is approximately 1.15 to 1.20 times the lifting height. For example, the vertical height from a water source to the place where the water is used is 20 meters, and the required lift is about 23 to 24 meters. When choosing a clean water pump, it is necessary to make the head of the clean water pump as close as possible to the required head (the deviation does not exceed 20%). In this case, the efficiency of the water pump is the highest, it is also more energy-saving, and it will be more economical to use. If the head is much less than the required head, the clean water pump often cannot meet the needs of the user, even if it can pump water, the water volume is minimal. But conversely, if the high-lift clean water pump is used for low-lift, the flow will be too large, causing the motor to overload. If the motor temperature rises for a long time, the winding insulation layer will gradually age and even burn the motor.
The trivial tail flow refers to the flow of the water pump, that is, the water output. It is generally not suitable to choose too large, otherwise it will increase the cost of purchasing a clean water pump. It should be selected according to needs. For example, the self-priming water pump used by the user’s home should have a smaller flow rate; such as the user’s submersible pump for irrigation, a larger flow rate can be appropriately selected.