The choice of the model of the deep well pump determines the entire project. If you carefully select the model of the deep well pump and other major tasks in the selection of the deep well pump, there will be no problems of not being able to fit in, not enough water, or not being able to pump water. , even if the well is damaged, as long as the maintenance is performed later, the normal operation of the deep well pump can be determined.

Most of the long-shaft deep well pumps are vertical single-suction multi-stage centrifugal pumps. The impeller is installed below the dynamic water level in the well, and the power machine is installed on the well. The long shaft drives the impeller to rotate in the guide casing, and the water flows along with the guide casing and the impeller. The flow channel between them is lifted up to the ground through the water pipe. When the lift is high, a multi-stage centrifugal pump with multiple impellers in series can be used.

1. Select the type of deep well pump according to the good diameter and water quality

Different types of pumps have certain requirements on the diameter of the wellbore, and the external dimension of the pump should be 25-50mm smaller than the wellbore diameter. If the wellbore is skewed, the external dimensions of the pump should be smaller. In short, the pump body part should not be close to the inner wall of the well to prevent the well from being damaged by the vibration of the pump.

2. According to the water output of the well, select the flow rate of the deep well pump

Each well has an economical water output, and the flow rate of the pump should be equal to or less than the water output when the water level of the motor-driven well drops to half the depth of the well. When the pumping volume is greater than the water output of the motor-driven well, it will cause the wall of the motor-driven well to collapse and deposit, which will affect the service life of the well; if the pumping volume is too small, the benefits of the well will not be fully utilized. Therefore, the method is to carry out a pumping test on the motor-driven well and use the water output that the well may provide as the basis for selecting the pump flow rate of the well. The flow rate of the pump is subject to the brand model or the number marked on the instruction manual.

3. Determine the lift of the deep well pump

According to the drop depth of the well water level and the head loss of the water delivery pipeline, determine the lift actually required by the well pump, that is, the lift of the well pump.

4. The well water contains a lot of sediment, so it is not suitable to install and use deep well pumps.

Excessive sand content in the well water will accelerate the wear of the rubber bearing, cause the pump to vibrate, and shorten its life of the pump.

The above article introduces four points of attention about the deep well pump model. By grasping the four points, a suitable deep well pump can be selected, and the probability of problems in the project is reduced. As a deep well pump manufacturer, SEAKOO provides high-quality deep well submersible pumps. If you are interested in deep-well pumps, please pay attention to our website.