Which type of pump is commonly used in deep wells alongside vertical turbines?

The submersible pump is specifically designed for deep well applications due to its ability to be placed below the water surface, which allows it to effectively move water from significant depths to the surface. In deep wells, the installation of a submersible pump minimizes issues related to cavitation, which can be a concern when using surface-mounted pumps. Submersible pumps are often used in conjunction with vertical turbine pumps, as both types can efficiently handle the depths involved in deep water extraction.

Submersible pumps are hermetically sealed to prevent water from entering the motor and are equipped with a series of impellers or stages to provide the necessary lift. Their design enables them to operate effectively and reliably in various conditions, making them a preferred choice for deep well scenarios.

Other pump types, such as diaphragm, piston, and centrifugal pumps, have different operating mechanisms and are typically used in other applications. For example, diaphragm and piston pumps are more suited for high-pressure applications or scenarios involving viscous fluids, while centrifugal pumps are often used for moving liquids at lower heads and are not ideal for deep well situations without modifications.