| 摘要 |
The closure serves to tightly close the charging hole of a liquid container. Said closure permits tapping of the container at the charging hole. The closure is provided with a pressure-equalizing valve. A bung bush made of elastic material has, at a distance next to each other, an axial tapping channel (18) and an axial pressure-equalizing channel (28), which lead next to each other to an end surface (26) of the bung bush. A flap (30) is integrally coupled to the bung bush, which flap covers the end surface (26) in the closed position, closes the mouths of the channels (18, 28) in a manner tight to spray and blocks off the pressure-equalizing channel (28) in a pressuretight manner. The flap (30) can be pivoted up and down manually in order to open up the pressure-equalizing channel (28) to a greater or lesser extent and thus to actuate the pressure-equalizing valve. |
