What is a booster pump?

A booster pump is a centrifugal pump that increases low water pressure and flow. It is mainly used to increase the pressure of water or other fluid flow systems to maintain water pressure in areas with low or fluctuating water pressure. The booster pump is also called a pressure pump. Usually, the booster pump is used in the water delivery system, and the water can easily reach the required height by installing the booster pump. The most common application is the water delivery of high-rise buildings.

How does the booster pump work?

The booster pump follows the traditional centrifugal pump working principle, the impeller is connected to the motor or diesel engine through the drive shaft and rotates at high speed. The fluid enters the impeller eye, and the rotational motion of the impeller accelerates the fluid through the impeller blades and is discharged into the pump casing by centrifugal force along its circumference. The action of the impeller increases the velocity and pressure of the fluid and leads it to the pump outlet.

Main components of the booster pump

Volute casing
The main goal of the volute is to convert the velocity of the fluid into pressure, thereby increasing its pressure

Impeller
The impeller is the core part of the booster pump, it has high speed and high output, the impeller on the blade and plays a major role, the impeller should pass the static balance test before assembly. The inner and outer surfaces on the impeller are required to be smooth to reduce the friction loss of water flow. With the help of centrifugal force, this impeller rotates the water axially and radially.

Inlet and Outlet Valves
Water is drawn into the pump through the intake valve. On the other hand, the outlet valve is used to release the water under pressure.