Submersible Pumps: How It Works?

A submersible pump, electric or solar works fully submerged under water. It is designed with a rust-proof metal body inside which is planted a motor in a hermetically sealed cavity. This motor is connected closely to the pump.

The way the pump works is through conversion of energy, a process common in all pumps. Only in this case, its rotary energy that the pump changes into kinetic energy and then finally to pressure energy which helps it push the water up. This chain of conversion is carried out with the help of water which it draws from its environment. This water is then passed through the pump and pushed upward with the power of the rotating impellers. Once through the integrated diffuser, the water hits the surface and collects in the container put there for the purpose.

While the function is pretty simple, it is highly effective and consistent. The greatest advantage however is that a submersible pump needs no priming. The pump, already being dunked in fluid requires no additional protection from the outside.

Submersible pumps sell worldwide and in large quantities chiefly because of their energy-saving nature. These systems although surprisingly efficient do not require proportional energy. The motor functions using the pressure of water itself, thus saving electricity in the process. In case of a solar bore water pump, it’s solar energy it saves.

But fluid is not the only thing these pumps are designed to pump. There are models that handle solids too, and those that are water pumps dedicatedly handle fluids only. These pumps, unlike aboveground models are not noisy. Under the water, they are very quiet. Also, cavitation is well taken care of in these pumps. With uniform water flow, there is never any difference in pressure.

Submersible pumps are designs for a specific section of users, and therefore it’s no surprise that they don’t work for everybody. If you are looking for a pump to use at home, pick a single-stage model. These pumps are great for home uses as well as light industrial uses. These models work as great as sum pumps, for sewage pumping and for filtering aquariums. A multi-stage pump on the other hand is great for all things underground. You can use these in wells to pull water, but also oil wells to draw oil. These pumps work great with water and other thin liquids, but they are also equipped to handle thicker fluids like sewage water, oil, etc.

While using a submersible pump, you must make sure that the machine remains fully submerged at all times. It is the fluid that it is sunk in that helps keep the motor cool while running. Above water, the motor tends to overheat and that is detrimental to the life and function of the pumps.

The market today has a huge selection of submersible pumps, both electric and solar kinds. Talk to a sales representative to find out which model would fit your precise applications perfectly.