Like any other pump, submersible pumps are used to move fluid from one point to another; however, they are completely submerged in the fluid or medium they are required to pump. This type of pump features a hermetically sealed motor that is close-coupled to the pump body, which is contained in a water-tight enclosure to prevent the entry of liquid and to protect the motor from damage.
Submersible pumps work by using the head of fluid to push it forward rather than pull it up. This pumping process is extremely efficient because it requires no energy. A submersible pump’s motor is cooled by the fluid around it to prevent overheating.