| 摘要 |
The present invention concerns a valve suitable for dispensing moisture reactive liquids comprising
(a) A valve cup (3) for tightly closing the container, comprising a through opening, and a first annular fold (3C) of diameter, D, forming a groove in a first, inner surface (3in) and a rib in a second, outer surface (3out);
(b) A resilient grommet (2) extending on both side of the cup trough the cup opening, and
(c) A valve stem (1) comprising a hollow tubular portion (1A) defining a central bore (1C), said valve stem snugly fitting in the grommet central bore, and extending on both sides of the grommet (2), with a first end opening to ambient and a second, opposite end being closed by a circular end base (1B) of diameter greater than the diameter of the bore of the grommet (2), wherein the upper surface of the base (1B) is suitable for sealing against the lower surface of the grommet flange (2B);
the upper surface of the flange portion (2B) of the grommet mating the geometry of the first, inner surface (3in) of the cup (3) including the portion (2C) of the grommet mating the groove formed by the fold (3C). |
