Galvanised ducting - spiral ducts made of galvanised steel sheet

Photo of product SPR-C

Circular spiral ducts are manufactured in diameters from 80 to 1600mm.
Spiral ducting is available with a material thickness from 0.4 to 1.8 mm,
from diameter 250mm they are provided with corrugations/exterior grooves
for better tightness and rigidity under negative pressure.

Circular ducting are manufactured from galvanized (standard), stainless steel,
aluminium sheet, they meet requirements for air tightness class D certified by EN 12237.