The invention relates to a control system with at least two channel‐guiding parts and an intermediate plate arranged between the two channel‐guiding parts. The intermediate plate comprises at least two flat metallic gasket layers as well as a screen layer arranged between the at least two facial metallic gasket layers. In the intermediate plate, one or several fluid passage openings are formed, which pass through the flat metallic gasket layers so that they form passage openings. These passage openings are spanned by the screen layer. The screen layer mainly serves as a filter to catch particles, which may not be carried over into the channel‐guiding parts, as they there would cause blockings and functional failures. This control system is characterized in that in at least one of said one or several fluid passage openings at least one support arrangement for the screen layer is formed in the flat metallic sealing layer adjoining to the screen layer.