Vertical turbine pumps are single stage or multistage in construction and submerged impellers allow the pump to be started without need of priming. VT pumps are designed to operate without being affected by large fluctuations of the water level. These pumps are supplied with mixed flow or axial flow impeller for higher flow requirement. The transmission shaft in the column pipes are supported with line shaft bearing with self or external cooling arrangement. These pumps can be either installed in wet or dry pit application. Ratchet arrangement provided on coupling to avoid reverse rotation.