A process pump is a mechanical device used to move fluids, slurries, or gases within an industrial process, designed to be durable and handle challenging materials like corrosives, abrasives, or high-temperature liquids. Key types include centrifugal pumps, which use a rotating impeller to add velocity to the fluid, and positive displacement pumps, which trap and force a fluid through the system. They are essential in industries such as oil and gas, chemical processing, and water treatment, and must meet strict safety and reliability standards.