Fire pump is typically a type of centrifugal pump. Centrifugal pumps are commonly used for fire pump applications due to their ability to provide high flow rates and relatively high pressures, which are essential for firefighting purposes. These pumps work by converting rotational energy from a motor or engine into kinetic energy in the fluid, which then increases the fluid's velocity and creates pressure.

Centrifugal fire pumps are designed to handle large volumes of water at high pressures. They consist of an impeller, which is a rotating component with curved blades that accelerates the water radially outward. The water is then directed into a volute or casing, which further increases its pressure before it is discharged into the fire protection system.

The design of centrifugal fire pumps allows for efficient and reliable operation, which is crucial during emergency situations. They are often driven by electric motors or diesel engines and are engineered to meet specific standards and regulations for firefighting applications. These pumps are designed to quickly and effectively supply water to fire sprinkler systems, hydrants, hoses, and other firefighting equipment.