XL-C 4090 Glass door package with patch fittings and floor spring is designed for standard double action doors for the basic requirements with a door width of up to 950 mm and a maximum door weight of 80 kg. The package includes a top pivot for free pivoting at the top, a top and bottom patch for holding the door as a free swing.
The floor spring is used for control closure of the doors completing the door set. Floor spring closing speed adjustment is optimized with two regulating valves.