Capping device tanks for with sealing o aireación, a cuba or equivalent, comprising: --a neck (5, 40) linked to cuba securely (2, 70) along an axis, defining a mouth (7 71) to the same, and --a tapón (3, 30) comprising screw means (11b) or equivalent for mounting substantially in the axis of the neck (5), containing the stopper a shutter (25 91) attached thereto, which integrates a gasket associated with a valve for shutter selective said mouth and be interposed between said neck (5, 40) and at least one hole (22) communication with exterior flowing through plug which is movable substantially axially relative to the neck, --among a closed position in which it is peripherally shutter locked between the stopper and neck for your gasket close one step (20 ) exhaust and / or vacuum between cuba and abroad, 'and a a position opening in which the shutter spreading the neck to release said passage (20), leaving motion to the valve between an idle state in which the same is applied against a seat (15, 97) of said stopper for closing of communication between cuba and abroad, through said hole (22) plug and state opening in which is sought in separation of such seat to allow air circulation through the said bore (22), only from abroad to cuba (2) from depression in such cuba reinante dada. (Machine-translation by Google Translate, not legally binding)
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