The sewage trap is a key part of the wet curtain air cooler, and is also a key part of the evaporative refrigeration air conditioner. Because the refrigerant is not used in this air conditioner, it is extracted by the uninterrupted water of the circulating water pump and evenly sprayed through the water distribution system. On the showering layer, the outdoor air enters the evaporative cooling medium and exchanges heat with the water sufficiently. The cool and clean air cooled by the evaporation of water is sent into the room by the low noise fan. The function of the sewage valve is to filter and purify the impurities in the water circulation to ensure its effect.

Today, the high-end sewage valve of the wet curtain air cooler has built-in high-precision electromagnetic components with high sensitivity.

The operating power in the wet curtain air cooler system is the pump motor and fan. For the motor of the evaporative refrigeration air conditioner, the important thing is that the moisture-proof effect is good, and the generally inferior motor is prone to leakage or rust, etc., and the motor may be burnt out due to water ingress. In addition, the working efficiency of the motor is also an important aspect of evaluating the wet curtain air cooler. The motor ratio of each machine must be reasonable, otherwise it will affect the working efficiency.