Vertical multistage centrifugal pumps are a type of pump designed to efficiently transport liquids by converting mechanical energy into kinetic energy. These pumps consist of multiple impellers stacked vertically, each connected to its own stage, allowing for increased pressure and flow rates. The design of vertical multistage centrifugal pumps is particularly advantageous in applications where higher head and variable flow conditions are required. The impellers within these pumps are mounted on a common shaft and housed in a vertical casing. As fluid enters the pump, the rotation of the impellers imparts kinetic energy to the liquid, increasing its velocity. The kinetic energy is then converted into potential energy as the liquid passes through each successive impeller stage, resulting in higher pressure levels. This configuration makes vertical multistage centrifugal pumps well-suited for various industrial, commercial, and municipal applications, such as water supply, pressure boosting, HVAC systems, and boiler feed. One notable advantage of these pumps is their compact design, which allows for installation in confined spaces. Additionally, they offer operational flexibility, as their modular construction allows for the adjustment of the number of stages to meet specific system requirements. Variable speed drives can also be employed to enhance efficiency and adapt to varying demand. However, it's essential to consider factors such as proper maintenance and alignment to ensure optimal performance. Regular