General properties :Casing made of galvanized sheet steel Thermal labyrinth inside the body Seals for the connection with the ventilation ducts Intumescent seals Sealing mechanism with IP42 protection (IP54 for motorized versions) Opening/closing mechanism with IP42 protection casing (IP54 for motorized versions) Damper blade made of fireproof material 25 mm thick Lip seal on the blade perimeter for cold smoke sealing Inside intumescent gasket for warm smoke sealing Applied European standards CE marking EN 15650 test EN 1366-2 classification EN 13501-3 thermal fuse reliability ISO 10294-4 airtightness EN 1751 resistance to corrosive environments EN 60068-2-52 certifications and approvals CE certificate of constancy of performance n° 1812- CPR-1023 Efectis German Approval No. Z-56.4212-987.
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