| 摘要 |
A system for applying a working pressure to a content of a pressure package. The system comprises a pressure package configured to hold a content to be delivered, a high-pressure chamber configured to hold a propellant, a pressure controller connected to the high pressure chamber by a feed-through and configured to control the working pressure on the content of the pressure package with the aid of the propellant on the basis of a predetermined reference pressure, and a movable member positionable in at least a control position and a neutral position. The movable member, in the control position, clears the feed-through to enable control of the working pressure. The movable member, in the neutral position, blocks the feed-through, so that control of the working pressure is then impossible. The movable member has a handle for positioning the movable member in the neutral position or in the control position.
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