... corrosion resistance 4.long life of Automatic Control Valves Water Softener Type choice:Softener equipment applies cation resin for ... used in steam bioler,heating bioler,exchanger,air conditioner, and other systems water softener,also used in hotel,restruant,office, ... wine,washing,textile,chemical,medicine and other industrial softener water treatment.Double tanks one runningh and the other alternating ...