Abstract: The valve block has a baseplate (1) with longitudinal ducts (11 to 15) for incoming and outgoing air, working-air ducts (16, 17) transversely thereto, connecting ducts (21 to 27) which open out in the connection side (18) in a specific hole pattern, and a well (19) for an electrical installation (20). Attached to the connection side (18) of the baseplate is at least one unit which consists of a directional valve (2) and of two pilot valves (3, 4) triggering this. The pilot valves (3, 4) are arranged in a housing (41) which is fastened by means of an attachment face (42) to an end face (43) of the directional valve (2). A plug base (92) projecting on the underside (29) of the housing (41) engages through a perforation (97) of the baseplate into the well (19) and has projecting contact lugs (93, 94) which are connected to contact terminals (95, 96) on the printed circuit board (20).