The RO series pure water equipment adopts the most advanced and energy-saving desalination technology today - reverse osmosis (RO) membrane separation method to replace the traditional ion exchange method that consumes a large amount of acid and alkali, thus achieving the requirement of green environmental protection without the need for acid and alkali in the pure water preparation process. This series of pure water machines can effectively remove almost all impurities such as suspended solids, colloids, microorganisms, organic matter, and soluble salts in water (with a removal rate generally reaching 97-99%). It is currently the most widely used type of desalination equipment, mainly used for desalination of seawater and brackish water; Softening of boiler water; Desalination of general pure water; Wastewater treatment; The pre-treatment of ultrapure water can reduce the load of ion exchange resin by more than 90%, and the amount of regenerant can also be reduced by more than 90%; Purification, concentration, separation, and other aspects of food, medicine, chemical industry, etc.