SRGW plain butt-welded ducts are available in nominal diameters of Ø100 to 710 and in 0.5 to 1.0 m long sections.
The available sheet thickness ranges from 0.5 to 0.9 mm. Butt welds provide optimum air tightness, high strength, and a neat finish. The ducts meet requirements of air tightness
class D according to EN 12237.
