| 摘要 |
A valve for opening and closing a liquid vessel or pouch, which includes a valve body having a central axis, top and bottom sides arranged transversely with respect to the central axis, and a passage opening that extends through the valve body coaxially from the top side to the bottom side. A closure element can be pressed into the passage opening by a spring element coaxially with respect to the central axis from the underside such that the passage opening can be closed in a liquid-tight manner. The closure element includes a first sealing lip which can be pressed into the passage opening with an interference fit P1 and, axially behind said first sealing lip, a second sealing lip, which can be pressed into the passage opening with an interference fit P2, wherein P2 is a stronger interference fit than P1. |
