Know about the Vertical turbine Pumps

VerticalTurbine Pumps have reached a remarkable degree of perfection with high yields and certain hydraulic advantages; Although they began to be used exclusively for irrigation in wells and drilling, their industrial applications are increasing more and more, is currently more numerous than agricultural ones, so the denomination of deep well pumps is disappearing to adapt to that of turbine pumps vertical.

Within this type, the pumps provided with an elongated shaft and driven by a submersible motor arranged immediately below the pump or diver pumps can be distinguished. The simple aspiration impeller can be radial or diagonal, depending on the working conditions and closed or semi-open.

Semi-open impellers

A more careful vertical adjustment is required during assembly. The set of diffusers of the pump and the discharge pipe hang from the head on which the motor is mounted. Diffusers sometimes have a special enamel coating to minimize hydraulic losses and thus improve performance. The construction of these pumps at vertical turbine pumps suppliers allows mounting the desired number of stages, combining the necessary diffusers and impellers. This offers some flexibility to applications.

Vertical turbine pumps with the engine above

In these pumps from Vertical turbine Pumps Manufacturers, the shaft goes inside the discharge pipe, without protection if the lubrication is by oil, or inside a protective tube if the lubrication is by water. Poor shaft alignment affects the life of the bearings and generates vibrations during operation.

Vertical turbine pumps with submerged engine

Motors have been developed that can work within the liquid and of dimensions that allow them to be mounted inside the well to avoid the disadvantages of long shafts. In this way the shaft disappears, the bearings and the protective tube and the discharge pipe can be smaller in diameter. The motors can be dry running with an airtight seal or flooded with special insulation. The advantages of the submerged motor can be seen very well in wells of more than 30 m deep, or inclined or curved. The required surface space is minimal and even zero with underground discharge. The disadvantages are a reduction in performance and life of the engine and the total disassembly for any type of inspection or repair of the pump or motor.