Abstract: Valve closure for the discharge of liquid from a container by means of pressurized gas, said valve closure comprising a housing and a channel for discharge of liquid having an end wall at its top end and liquid passage openings near said end wall, an elastic valve body disposed around said liquid discharge channel, and clamped at one of its edges, and openings (18) provided in said valve body (5) which in the unstressed closing position of the valve body are closed off by a portion (11) of said housing and which openings (18) are in communication with the inside of said container through openings (21) in said housing (2) or in a part (3) connected therewith, whereas in the deformed open position of the valve body said openings (18) are in alignment with the openings (21) in said housing and said valve body is in positive sealing engagement with a seat to prevent the liquid and gas streams from being short-circuited.

Abstract: A valve unit fitted in the neck (26) of a liquid container (25) has a hollow plastics core element (1) supported within a metal housing which is assembled from two cup-shaped parts (12,13) provided with flanges (14,15) at their open ends which are welded together. The lower part (12) includes flow openings (19) and is adapted to support a flange (2) of the core element (1) while the upper part has a flange (20) which cooperates with valve member (11) and is surrounded by a sleeve (23) which secures the unit in the neck (26) of the container.