Service Description : Doors designed to prevent fire and... Doors designed to prevent fire and smoke should be able to shut themselves automatically. A closed door, however, always represents an obstruction. However, convenience and accessibility can only be assured if the door is easy to open. With automatic swing-door drives from GU Group, doors are securely closed yet easy to access using a motion sensor, a push button, or an access control system.Likewise, entrance doors in the facade can benefit from the swing-door drive
