| 摘要 |
<p>A valve device for connecting a container filled with a flowable material comprises a unitary, essenitally cup-shaped housing (1) having an axially extending flow passage (9) in the base thereof. A valve seat (50) is formed around the inner end of the flow passage (9), radially inwardly of the axially extending wall (8) of the housing (1). A unitary cylindrical valve member (2) is received in the open end of the cup-shaped housing (1). This has an axially extending flow passage (16) therein in axial alignment with the flow passage (9) in the cup-shaped housing (2). A valve disc (14) is positioned over the inner end of the flow passage (16), but spaced therefrom. The valve member (2) is axially displaceable relative to the housing (1) upon rotational movement of the housing (1) so as to effect engagement of the valve disc (14) with the valve seat (50) to close the flow passage (9) in the housing (1) and disengagement to open the flow passage (9) in the housing (1). In use, the housing (1) is connected to the discharge orifice of the container and the valve member (2) is connected to the receiving orifice of the applicator.</p> |
