Device for the drying of gases. Through a (46) enters the gas to Dry and a four-way valve (47) runs into a container (31), a Rising, the Drying is performed by means of a Bed of adsorbent (41). The exit of the dry gas is effected by a Conduit (28) Towards a valve (32) and is a delivery conduit (53).A part of the output stream is carried by (39) for driving a valve (38), to serve as a Purge. This Flow to a Heater (h2) ascends and descends the Drying Bed of adsorbent (41) of the container (33), going through a valve (56) (47) to Four Lanes, and this to the outside through an Exhaust Valve purges (52).An electronic circuit Control System performs the switching valve (47) Four Lanes so that the containers (31, 33) Invest function, passing to be purged the Drying Container (31) and civecersa another Container (33).
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