Title: +038=365.008-SS002._04-mcr WIPT Stengespjeld Mercor - Teknisk og operativ dokumentasjon.pdf
Construction ______________________________________________________________________ The cut-off fire dampers mcr WIP consist of a casing of rectangular cross-section, a movable cut-off baffle in the form of many blades rotating around their own axes, and a tripping and control mechanism actuated remotely or automatically after operation of the thermal trip. The fire damper casing is made of galvanised or stainless steel sheet. An integral part of the casing is a flange of silicate and cement board. The total length of the casing is min 135 mm. Each cut-off blade is made of 15 mm thick gypsum board. The entire surface of blades is covered with galvanised steel sheet or stainless steel sheet. A swelling gasket of cross-section 36x2 mm is glued on the internal side of the casing. The baffle blades rotate around the axis comprising two steel pins.