EDI ultra pure water equipment mainly adopts pretreatment, reverse osmosis technology, EDI and other process flow, which can almost completely remove the conductive medium in the water, and can also remove the non dissociated colloidal substances, gases and organic substances in the water. It is an irreplaceable means in the current ultra pure water production process. It is suitable for electronic optoelectronics, chemical metallurgy, power plant boiler, electroplating coating industry; Precision machinery, automobile industry and medicine purified water industry.