The reliability and efficiency of vertical pumps could be difficult to achieve and maintain without the use of vertical shafts. Vertical pumps rely on two types of robust shafts to keep them steady and maintain their integrity in the harshest operational conditions. These are vertical solid shafts (VSS) or Vertical Hollow Shafts
(VHS). The oldest and most common shaft used in vertical pumps and turbines today is the Vertical Solid Shaft. Since the vertical pumps were invented in 1922, vertical solid shafts have been instrumental in ensuring their longevity and reliability. The stability offered by the VSS has enabled vertical pumps to operate with low vibrations in low, medium and high thrust operations. Fewer vibrations lead to lower stresses, less noise and a longer lifespan for all the components of the pump.Vertical pumps have created several mechanical and operational advantages in a wide range of real-world applications. They have a smaller footprint, need less maintenance and are more powerful than the horizontal pumps
. Also, they are ideal for applications in harsh conditions such as the petroleum and chemical industries.