(EN) A closure (1) for a beverage keg (90) is provided, the closure (1) comprising an inlet for admitting a pressurised gas into a headspace of the beverage keg (90) and a valve housing (20) defining at least a portion of the closure (1). The valve housing (20) has a housing wall (21) that defines at least a portion of the valve housing (20). The closure (1) is provided with a barrier (29), separate from the inlet, that is integrally formed with the housing wall (21) and configured to seal the closure (1) such that the closure (1) is able to retain the pressurised gas within the keg (90) in an unvented configuration. The barrier thickness is configured such that the barrier (29) ruptures by internal pressure from within the keg (90) in order to switch the closure (1) into a vented configurationin which fluid communication between the headspace of the keg (90) and an exterior of the closure (1) is possible, through the ruptured barrier (29).
(ZH) 提供一种用于饮料桶(90)的封闭件(1)，该封闭件(1)包括用于允许加压气体进入饮料桶(90)的顶部空间的入口和限定封闭件(1)的至少一部分的阀壳体(20)。阀壳体(20)具有壳体壁(21)，该壳体壁限定阀壳体(20)的至少一部分。封闭件(1)设置有与入口分开的阻挡件(29)，该阻挡件与壳体壁(21)一体地形成并且被构造成密封封闭件(1)，使得封闭件(1)在不通气构造时能够将加压气体保持在桶(90)内。阻挡件厚度被构造成使得阻挡件(29)通过来自桶(90)内的内部压力而破裂，以便将封闭件(1)切换成通气构造，在通气构造中，桶(90)的顶部空间与封闭件(1)的外部之间能够通过破裂的阻挡件(29)而流体连通。