| 摘要 |
<p>The device has a position regulator (6) attached to a connecting piece and connected with a pneumatic actuating drive. A controllable air duct (7) is provided with two channel sections (7a, 7c), which are movably arranged and connected with each other by a transverse channel section. A closure unit (10) closes the controllable air duct at a region of the transverse channel section. The closure unit is inserted in the transverse channel section from an external side of the connecting piece through one of the channel sections.</p> |
