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If no hermetic separation required, the doors can also be supplied with a slightly modified door leaf. Due to the elimination of the hermetic closed position, optical changes occur to the lower leaf guides and the path of the door. Otherwise, the visible similarity to the K1 / K2 series remains, enabling homogenous designs to be implemented.
one-winged sliding door with smoke protection
With modified seals and a heat-absorbing core, the basic Record CLEAN K1 becomes a certified smoke control door