CABL Series – Blower Reactivated type
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Frequently Asked Questions
A blower reactivated desiccant air dryer uses ambient air drawn through a blower and heated to regenerate the desiccant. This removes the moisture adsorbed during the drying cycle and prepares the desiccant for the next cycle.
The The DB/CABL Series dries compressed air by passing it through a desiccant-filled adsorber tower. After the desiccant has adsorbed water vapour for a preset period, the air is switched to the second tower so drying continues without interruption, while a blower draws in ambient air that is heated and passed through the saturated tower to remove the accumulated moisture.
The Delair DB/CABL Series desiccant dryer is available with a capacity of up to 6800 m³/hr (4000 CFM), making it suitable for high-capacity industrial compressed-air drying applications.
During regeneration, the blower draws ambient air and the heater raises its temperature to a preset level. The hot air passes through the saturated adsorber and releases the moisture held by the desiccant. The blower then continues operating for a preset period to cool the desiccant before the adsorber is pressurized and returned to the drying cycle.
A blower reactivated dryer suits large compressed-air flows where you want to avoid the purge-air loss of a heatless dryer — it regenerates the desiccant using ambient air drawn by a blower and warmed by a heater, rather than consuming dried compressed air. It operates with an inlet air temperature up to 40 °C at a working pressure of 6 to 10 kg/cm²(g), so unlike a heat-of-compression dryer it doesn’t require hot inlet air.
