The selection of submersible well pump should follow the following points:

✔️Operation scene of submersible well pump

For the water supply of the pressure tank, the submersible electric well pumps with small flow rate and high lift should be selected; for the water tower water supply, the submersible electric pump for medium flow wells can be selected according to the size and lift of the water tower; Under appropriate conditions, try to choose a submersible electric well pump with a large flow rate.

✔️Conditions of use

Select the appropriate submersible pump according to the situation of the well used, such as the size of the well, the water output, the sand content, etc., and select the appropriate electric pump standard according to the known situation. Special attention should be paid to the fact that when the electric pump is a clean water pump, it cannot pump mixed water with a large amount of sand, nor can it be used for cleaning new wells, otherwise it will lead to wear of the pump and even damage to the motor due to overload.

✔️Reasonable selection of accessories

When purchasing accessories for well submersible pumps such as cables, protection switches, and lifting pipes. The regular products matched by the manufacturer should be selected to avoid leaving hidden dangers for future use.

Installation guide for deep well submersible pumps

Before installation, you should read the operation manual carefully, and install it according to the rules, procedures and requirements.

✔️Cable Connector

The cable joint should be wrapped with the high-pressure adhesive tape that comes with the pump or the regular manufacturer's product, and wrapped according to the method described in the manual. In actual work, many tapes leak electricity due to poor insulation function, which makes the cable joints unqualified, resulting in the electric pump not running normally.

✔️Device head

The submersible electric well pumps should be installed in strict accordance with the rules to avoid overloading the motor due to low head and excessive flow, shortening the service life, and even burning the motor. It is understood that some users buy a high-lift pump with a higher lift than the device when purchasing an electric pump, which will overload the motor, cause a large current, consume electricity, and shorten the service life of the motor.

✔️Device depth

When installing the electric pump for the well, it should be based on the quicksand and silt conditions of the well. Determine the installation depth of the electric pump, do not bury the electric pump in the mud, to prevent poor motor heat dissipation or sand entering the motor cavity to wear out the bearings and burn the motor. Generally, it should be ensured that the distance from the base of the electric pump to the bottom of the well is not less than 3 m.

✔️Water for motor

When adding water to the motor, pure water should be used, and the water must be topped up. The correct way to add water is: after the water is full, let it stand for 20-30 minutes. Top up again. You can also shake the motor from side to side to accelerate the overflow of water in the motor cavity, especially for motors with higher power. During the inspection in the countryside, we found that the damage to many motors, especially high-power motors, was caused by a small amount of water shortage in the motor. First, the upper guide bearing held the shaft or the upper part of the winding was damaged, thereby burning the motor. Therefore, when the electric pump is installed, it should be ensured that all the inner cavities of the motor are filled with water.

Last few words

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