The MB-78EI DPA system is designed specifically for fire protection partitions with automatic sliding doors. The resistance class for single and double-sash doors is either EI15 or EI 30. The system relies on MB-78EI, the majority of its components consist of 78 mm deep three-chamber aluminium profiles with a 34 mm wide thermal break. MB-78EI DPA is equipped with external insulation elements and intumescent tapes. Doors are resistant to fire from the inner and outer sides. The MB-78EI DPA system is covered by ITB Technical Approval No. AT-15-6006/2012.
The maximum dimensions of the structure in the light of the passageway are as follows:
- Height of 1 and 2-sash doors: up to 2450 mm.
- width of single-sash doors: up to 1100 mm.
- 2-sash door width: up to 2125 mm.