| 摘要 |
Valve arrangement for disposable container 1 for gas with a valve housing 3 projecting into the container with, arranged in its upper part, a filling and tapping valve which comprises an axially movable valve body 10 which is spring-loaded towards the closed position. Arranged in the lower part of the valve housing is a non-return valve which in the closed position prevents filling of gas into the container 1 and the valve body 35 of which, which is spring-loaded towards the closed position, can be releasably arranged in a position out of sealing contact with the valve seat of the non-return valve. The non- return valve is released by the valve body 10 of the filling and tapping valve, after gas has been filled into the container, being displaced axially past its opening position into releasing contact with the valve body 35 of the non-return valve. The valve housing 3 consists of a part made in one piece, the filling and tapping valve being formed by a valve body 10, which is axially movable in a cylindrical bore in the valve housing and made in the form of a cylindrical rod, with an axial duct which at the bottom opens radially and in the closed position is located above an O-ring seal in the valve housing and in the open position forms a connecting duct past said seal. <IMAGE> |
