Segmented bends are designed for building ventilation systems based on
SPIRAL ducts and plain ducts. They are made of 4 segments; bends in
diameters of DN 1120 mm and greater are composed of 5 segments.
The segments are fastened by hemming and seaming. The inside surface of
the hemmed seams is sealed, and as a result of the double
EPDM gaskets, this solution provides air tightness class D according to
EN 12237 for ventilation and recuperation systems.
The piece is connected with a duct by inserting one into the other.
The pieces can be made of 1.4404 stainless steel sheet for ventilation
systems in swimming pools.