Twin Wall

Inner Wall: Stainless Steel 316L BA (EN 1.4404 - L50) 0.5 mm thick.

Outer Wall: Stainless Steel 304 BA (EN 1.4301 - L20) thickness 0.5 mm or Copper 0.6 mm thick.

Insulation: rock wool, thickness 25 mm, density 90 kg / cubic meter.

Welding: longitudinal TIG process for the fusion of adjoining pieces, without filler.

Belling: cold moulding, done with a mould and counter mould hydraulic expansion system ensuring calibrated joints with a tolerance of +/- 2mm.

Accessories: triple lip silicone gasket to ensure the joint is sealed; locking band to secure the joint and ensure the continuity of the system.

Convey and disperse the products resulting from the combustion processes of natural gas boilers in Chimney Systems in accordance with the requirements of UNI EN 1856-1; Convey and disperse flue gases and smoke generated by the combustion processes of diesel fuel, wood-burning or multi-fuel appliances in Flues; ventilation in supply and return of air systems in Air Ducts.

For the designation of the chimney system according to UNI EN 1856-1 the following is allowed: 

operation:
- Dry (D)
- Wet (W)

pressures:
- Positive (P1 = 200 Pa)
- Negative (N1 = 40 Pa).

Operating temperatures:
- ≤ 200 ° C with silicone gasket and P1 = 200 Pa

The technical data on the website are subject to change without notice.