| 摘要 |
The invention relates to a closure element for liquid containers, in particular bottles, comprising a plug engaging into the (neck) opening of the liquid container and a cap (5) covering the edge of the neck opening, the plug comprising an inlet channel passing through the same and optionally an outlet channel. The inlet channel and optionally the outlet channel (42) are provided with an inlet or outlet valve (49, 37) which is designed as a pressure relief valve (21). |
