| 摘要 |
The application discloses a device for a container which includes a casing (1) which defines an inner space (2), which extends from the inner space and is connectable to a vacuum source in order to reduce the pressure in the inner space and the outlet space to be lower than the pressure of a surrounding space. The device includes a valve arrangement (8) with a valve seat (9), which forms a first passage (6) between the inner space and the outlet space, a valve element (10), which is abuttable against the valve seat for closing the first passage in the first position and is displaceable from the valve seat for opening the passage, and a spindle portion (11) which is connected to the valve element and extends through the valve seat, the outlet space and a second passage (12) through the casing. Means (18, 19) are arranged to form a flow passage, which in the first position of the valve arrangement permits a flow from the surrounding space to the inner space.
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