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double wall system SDKB

The SDKB system is used to discharge flue gas from condensing boilers in excess pressure. Chimneys are designed to work in a wet environment. We make them of 0.5-0.6 mm thick steel, grade 1.4521. The outer sheath is made of a device type 1.4509. System of characteristic temperature resistance of 200 degrees C.

The system uses high-strength gaskets at 120 degrees C and 200 degrees C. Chimneys are also very much strengthened by the effect of condensate. The system is insulated with 25 mm thick low-temperature thermal insulation wool. At the customer’s request, we provide the SKKB system with additional insulation.