| 摘要 |
A dispensing valve unit for a gasified beverage, which unit (1) is adapted to be operatively connected both to a container (2) of gasified beverage and to a container (3) of gas for topping up the said beverage container with gas, and is so arranged as, when operated, both to dispense the beverage by gravity flow and to cause topping up gas from the gas container, regulated to substantially the same pressure as exists in the beverage container, to be supplied to the beverage container to replace the beverage dispensed therefrom.
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