Etage idom (floor)

Etage air duct with trapezoidal bracing, for larger sizes with internal bar bracing above 1500 mm width. Manufactured as standard in length L max = 1500 mm with fixed frame connection, but also available with loose frame with non-fixed connections. 0,7 mm for side lengths 0-799 mm, 0,9 mm for side lengths 800-1499 mm and 1,0 mm for side lengths over 1500 mm, in galvanised steel sheet. Available in air tightness B and C, as well as heat and smoke versions. Pressure class from -600Pa to 1000Pa.