Opening valve device for product container with re-aeration mechanism has first piston valve for product dispensing aperture and second plate valve for re-aeration aperture, and second valve integrated into first one

摘要

The container has a first valve (5) to open/close the product dispensing aperture, and a second valve (6), for a re-aeration aperture. The second valve is integrated in the first valve. The first valve is a piston valve, the second valve is a plate valve. Two separate paths are provided for product dispensing and for re-aeration.