Abstract: A valve, having a valve housing, through which the process medium is able to flow, in which a valve seat surrounding a through-flow opening is arranged, a valve member arranged on a spindle being assigned to said valve seat such that the valve member is movable by an adjusting travel of the spindle between a shut-off position, in which the valve member bears in a sealing manner against the valve seat so as to be impermeable to the process medium, and an open position, in which the valve member is lifted from the valve seat, and having a valve drive, which has a drive housing and a drive member that is arranged in the drive housing and generates the adjusting travel of the spindle, wherein the drive housing is coupled to the valve housing via an external interface and the drive member is coupled to the spindle via an internal interface.

Abstract: A valve, having a valve housing, through which the process medium is able to flow, in which a valve seat surrounding a through-flow opening is arranged, a valve member arranged on a spindle being assigned to said valve seat such that the valve member is movable by an adjusting travel of the spindle between a shut-off position, in which the valve member bears in a sealing manner against the valve seat so as to be impermeable to the process medium, and an open position, in which the valve member is lifted from the valve seat, and having a valve drive, which has a drive housing and a drive member that is arranged in the drive housing and generates the adjusting travel of the spindle, wherein the drive housing is coupled to the valve housing via an external interface and the drive member is coupled to the spindle via an internal interface.

Abstract: A valve with a valve housing through which process medium may flow and in which is located a valve seat encompassing a through-flow orifice and assigned a valve member mounted on a spindle in such a way that the valve member is movable by means of a stroke of the spindle between a blocking position in which the valve member fits up with process-medium-tight sealing against the valve seat, and an open position in which the valve member is lifted from the valve seat, wherein there is accommodated in the valve housing a sealing device through which the spindle passes and which seals the spindle passage, and with a valve drive which has a drive housing and an operating wall arranged movably in the drive housing, which may be subjected to fluid pressure and generates the stroke of the spindle.