Dubultsienu izolētie dūmvadi (25 mm)

DESCRIPTION
The 45° double-wall bend is the fundamental component for axis deviations, of vertical or sub-horizontal sections, of Smoke Channels or Chimney Systems according to UNI EN 1856-1.

FEATURES
• Internal Wall: Stainless Steel 316 BA (EN 1.4404 - L50) thickness 0.5 mm.
• External Wall: Stainless Steel 304 BA (EN 1.4301 - L20) thickness 0.5 mm or Copper thickness 0.6 mm.
• Insulation: Rock wool cups, thickness 25 mm, density 90 kg/m3.
• Welding: with TIG process, by fusion of adjacent edges without adding material.

Assembly:
• the entire series of 45° D.P. Curves is made with 2 sectors, which become 3, for the External COPPER Series only from D. mm 350 to D. mm 450;
• the Internal Wall always has overlapping and ROLLER-welded sectors;
• the External Wall:
  ° in the External INOX series:
      - there are two sectors, TIG welded from D. mm 80 to D. mm 300;
     - there are two sectors, ROLLER-welded from D. mm 350 to D. mm 450;
  ° in the External COPPER series:
     - there are two sectors, TIG welded from D. mm 80 to D. mm 300;
     - there are three sectors, STALKED between them from D. mm 350 to D. mm 450

APPLICATIONS
Conveyance and disposal of products deriving from combustion processes of methane gas-fired boilers, serving Chimney Systems compliant with UNI EN 1856-1; conveyance and disposal of fumes, generated by combustion processes of diesel, wood or multi-fuel powered devices, serving Smoke Ducts; ventilation in air intake and delivery systems, serving Ventilation Ducts.

For the designation of the Chimney System according to the UNI EN 1856-1 Standard, the following is permitted:

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