Single or double hinged leaf

Hinged metal door with coplanar leaf and frame on both sides. The frame is made of bended electro-zinc coated steel profiles (2 mm thickness) welded to each other.
The leaf, with a door stop edge in all three sides of the frame, is made of two electro-zinc coated steel panels (1.25 mm thickness) and contains thermal insulating and acoustic materials according to the TRIA constructive system.
The use of intumescent joints ensures the necessary tightness against flames and hot gases. The pivoting behavior of the door is ensured by a concealed pivotant 90-135-3D hinge, hidden inside of the frame with three axes fine-tuning.