Abstract: The invention relates to a valve arrangement for a container used to dispense pressurized liquid or foam, especially PU foam such as assembly or sealing foam from a container, the top of the said container being provided with a valve disk (13), which has an opening, especially of a circular shape, in which a valve body (1) equipped with a valve stem (4) is fixed. The valve stem (4) is depressible against an elastic restoring force, and thus cooperates with sealing elements in the manner of a valve opening. The sealing elements are provided on the sealing member with sealing faces, especially of a planar or conical shape, and in a closed position bear on the sealing faces of the valve body (1) disposed in plane or conical manner, the valve body (1) being a plastic sandwich structure consisting of an inner hard part (2) and an outer soft part (3).