Difference between refrigeration and adsorption dryer?
The refrigerant dryers uses an refrigerant gas in order to cool the compressed air and then remove the water condensate from the air, with this technic we can reach MAX. 3°C. PDP. An adsorption dryer, use an " adsorption material called desiccant " in order to remove ( adsoprb ) the humidity on the compressed air. With this method we can reach a PDP < 3°C. ( -40°C. or -70°C.). Depending on which dryer and option the customer chooses to use.
An adsorption dryer is required to be used when the ambient temperature goes under ZERO °C, to avoid ice building in pipes and applications.