Abstract: The disclosed invention is directed to a sealing and dispensing apparatus that is used to preserve the contents of a carbonated beverage container which contains a threaded adapter which replaces the screw cap of the container. The adapter contains a central opening in the form of an elongated channel which at its top end is connected to a novel valving mechanism which controls the flow of the pressurized liquid from the carbonated beverage container. The opposite or lower end of the central opening is connected to one end of a flexible elongated tube which is sealably connected to the central opening with the robe containing a weight at its free end. A valve assembly containing a novel plunger mechanism in combination with a biasing spring operates to effectively seal the central opening in a closed position to prevent any liquid flow, and when activated by digital pressure, provides a controlled uninterrupted flow of carbonated beverage through a flow path, passed the plunger, and out of a discharge spout.