A valve assembly (1) for controlling one of the movement mechanisms of an IS machine, with at least one pilot control valve (3, 5) as well as a switching valve (15′, 20′) for controlling the working air for the movement mechanism, with a modularly manageable valve carrier (2′) that is set up to attach both the pilot control valve (3, 5) and switching valve (15′, 20′) and allocated to one of the movement mechanisms, characterized in that the valve carrier (2′) is also equipped with at least one safety valve (4, 6), which is arranged in the flow path of the control air between the pilot control valve (3, 5) and the switching valve (15′, 20′), consists of a shank (14, 17) arranged in a borehole (23, 24) of the valve carrier (2′) so that it can axially slide between a position representing an open position and a closed position, and is actuated via a button (29, 30), that a respective switching valve (15′, 20′) is allocated to the opening and closing movement of the movement mechanism of the IS machine, and that a respective switching position of the switching valve is secured by a spring force.