Description
Submersible pumps are centrifugal, typically vertical, and can operate when immersed in the liquid to be pumped.
The motor and pump are made from a single block. As the motor has to work while immersed in the liquid to be pumped, it is made to be perfectly waterproof.
A submersible pump, however, is different from a submersed pump, which is designed to be installed at great depths. Submersed pumps, also commonly known as bore-hole pumps, are made to work constantly under head (installed below the minimum level of the bore) and typically guarantee a high outflow head (necessary for raising the water from the depths of the bores). They are therefore multistage.
Submersible pumps, instead, can operate even if only partially immersed, and are typically designed to empty flooded areas or tanks (that contain both clean and dirty water), for extracting water from pools, waterways, rainwater collection tanks and for irrigation.