Sealing Unit for a Liquid Container

A sealing unit for selectively sealing and opening a container liquid opening in a liquid container (100) for holding a liquid, the sealing unit comprising:

• a tubular element comprising a liquid passage extending in an axial direction between an inner opening and an outer opening, wherein the tubular element is configured to be fixedly positioned relative to the container liquid opening so as to provide a liquid connection between the inner opening of the tubular element and an interior of the liquid container via the container liquid opening;
• a valve arranged inside the liquid passage of the tubular element, the valve comprising:
• a tubular valve portion that is configured to be axially movable inside the liquid passage relative to the tubular element between a closed position wherein the tubular valve portion seals off the liquid passage and an open position wherein the tubular valve portion leaves the liquid passage open;
• and
• a valve skirt portion extending along a circumference of the tubular valve portion, wherein the valve skirt portion is at a first side connected to or integrally formed with the tubular valve portion and at a second side connected or connectable to the tubular element, the valve skirt portion comprising a flexible skirt part configured to bend when the tubular valve portion is moved from the closed position to the open position under influence of an external axial force exerted on a force receiving part of the tubular valve portion and to urge the tubular valve portion back from the open position to the closed position when the external axial force is removed or reduced;
• wherein the tubular element further comprises at least one air flow opening arranged to provide an air passage and wherein the at least one air flow opening is arranged to be covered by the valve skirt portion when the tubular valve portion is in the closed position and to be left open by the valve skirt portion when the tubular valve portion is in the open position.