Centrifugal pumps are noted in the Britannica article, along with water turbines and marine propellers, as capable of accelerating liquid to sufficient velocities to create low-pressure regions in the liquid flowing through the pipeline. Centrifugal pumps are used as booster pumps on HTST pasteurizers and they are the most common type of pump used to transport milk in most situations. When the pressure in the pipeline stream reduces to the vapor pressure of the liquid, cavities can form in the flow-stream. It is a dynamic situation where new cavities are formed as others collapse. This disrupts the smooth flow of the liquid and excerts uneven pressures on the interior surfaces throughout the system, i. e. cavitation.