process water filtration centrifugal separator industrial water filters PROCESS WATER FILTRATION Sonitec Inc. was founded in 1986 to manufacture and offer innovative technologies aimed at improving the quality of the water used in cooling and heating systems. Commercial, Industrial, Health Care and Educational Institutions had a sincere desire to improve energy efficiency, equipment performance and system integrity in their Heating, Cooling and Process water filtration systems. Sonitec Inc. offers the Vortisand, centrifugal filtration system for various process water filtration applications. Vortisand is fully automated, compact and provides removal of solids as small as 0.45 micron. It also reduces backwashing frequency and amount of water used, the company says. The technology is applicable in pre-filtration in front of reverse osmosis equipment and more applications.