Patent ID: 8906144

Claim:
An adsorption dryer for the treatment of gases, more particularly compressed air comprising: a control head with valves, pipe connections and means for holding cartridges, at least two cartridges, which can be connected to the control head and are filled with adsorption agent, to which a fluid flow can be supplied via the control head as required and the free ends of which are free of any connection and valve technology, whereby the cartridges have a cover, a cartridge casing, a base and a central tube which extends through the cover into an interior of the cartridge, wherein the cover, the cartridge casing and the base of the cartridges can be braced together via the central tube, wherein the central tube projects from the cartridge and acts as an only connection means for the control head, and wherein the cartridge itself is pressure tight even when the cartridge is not connected to the control head.