| 摘要 |
A vinification tank comprising a lower fermentation tank (1) and a small upper tank (2) and at least one valve (20) placing the fermentation tank (1) and the small tank (2) automatically and cyclically in communication and also comprising a stationary unit fitted onto a washing orifice (4) and forming a valve seat, a movable fitting travelling vertically and interacting with the said valve seat, and a movable float, means for sealing between the movable fitting and the movable float and means for maintaining the movable fitting on the valve seat.
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