Closed Cooling System Characteristics: 
1). Fully closed loop cooling, there is no debris into the cooling pipe system, pipe blockage phenomenon will not occur.
2). Soft water circulation cooling, no scale formation during high temperature, does not cause cooling pipe system scale.
3). Little place occupation, do not need to dig a pool, convenient for place change, save water, reduce energy consumption.
4). Adopts evaporation heat absorption cooling method, high cooling efficiency.
5). The closed circulating water consumption is little, which is in line with the requirement of environment  protection and energy saving requirement.
6). Automatic digital temperature control, automatic level control, energy saving, convenient operation and simple.