| 摘要 |
The switching valve has a valve housing with at least one valve spindle (4) carrying a valve plate, movable axially between at least two switching positions and actuated by an electric motor lifting drive (3) associated with the valve housing. An arrangement (13,14) for releases the drive connection between the drive and spindle. The spindle has a manual emergency actuator (7,9,10) that can be operated depending on the drive connection being released. |
