Positioning device for regulating a fluid flow

摘要

The actuating device (10) has a base housing (12a) having an inlet (14) and an outlet (16), where a valve seat (18) is operatively connected to the valve body (20). A valve rod (22) is provided for actuating the valve body. A device is provided for actuating the valve rod. An additional housing (12b) is provided on the base housing in fluid-tight manner, where the valve rod is arranged in the interior of closed housing (12).