Industrial Pumps and How They're Changing Industries is a collection of industrial pumps that are designed to meet the needs of various industries. The products include self-priming centrifugal pumps, displacement pumps & liquid ring vacuum pumps. Industrial Pumps and How They're Changing Industries is a collection of industrial pumps that are designed to meet the needs of various industries. The products include self-priming centrifugal pumps, displacement pumps & liquid ring vacuum pumps.