Galvanised Steel

Circular ducts are the most commonly used in standard installations. For all types of fluids (gas, air, water, etc.) they are the ducts that offer the lowest friction and greatest ease of flow. They require less material, and as such, are lighter, making the installation more economical in terms of fixing accessories. Helical tube manufactured by automatic machine from coils of Z200 galvanized sheet or stainless steel with a width of 137mm. Manufacturing thicknesses are 0.4/0.5/0.6mm. The standard length of the tubes is 3m. The crimping, in addition to keeping the tube smooth on the inside, complies with all standards regarding airtightness.