SKD – double walled chimneys

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SKD – double walled chimneys

Technical data

Available inner diameters: 120 – 500 [mm]
Material (inner pipe): Acid resistant steel 1.4404 (316L) thicknessesi 0,5 – 1,0 [mm]
Material (outer casing): Acid resistant steel  1.4301 (304) thicknessesi 0,5 – 0,6 [mm]
Insulation: Mineral fibre prefabricated bricks – thickness 50 [mm]
Max working temperature: 450 [ºC]
Warranty: 5 years


Catalogue card
Declaration of performance



Designed to construct selfstanding chimneys extracting fumes from gas and oil boilers



Double walled chimney system is used for building chimneys and chimney ducts made of stainless steel, taking out wet fumes from oil and gas boilers working with negative pressure.

Chimneys are build with the inner pipe made with 1.4404 (acc. to DIN17441) stainless steel, outer pipe – 1.4301 (acc. to DIN17441), thermal insulation – mineral wool, thickness 50mm.


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