Aluminum ventilation damper UL

FOR INSTALLATION INTO WALLS OR RECTANGULAR DUCTS Non-return dampers prevent unwanted airflows against the intended airflow direction when the system is not in operation Maximum differential pressure: 100 Pa Angle section border to be installed in wall openings Available in standard sizes and many intermediate sizes Non-return damper with formed aluminium blades for normal requirements; blades are fitted with seals for sound attenuation Optional equipment and accessories Installation subframe Powder coating (RAL or DB) Application Type UL non-return dampers for installation into internal walls and rectangular ducts Prevention of unwanted airflows against the intended airflow direction when the system is not in operation Blades close automatically when the system is shut down Maximum differential pressure: 100 Pa Special characteristics Any intermediate sizes within the standard size range are available operating temperature: –20 – 80 °C Maximum differential pressure: 100 Pa Non-return dampers are opened and closed by the airflow; no actuator is required Non-return damper with formed aluminium blades for normal requirements; blades are fitted with seals for sound attenuation Nominal sizes B: 200, 400, 600, 800, 1000, 1200, 1400, 1600 mm (intermediate sizes: 201 – 1599 mm in increments of 1 mm) H: 215, 315, 415, 515, 615, 715, 815, 1015, 1215, 1415, 1615 mm (intermediate sizes: 216 – 1614 mm, in increments of 1 mm) Any combination of B × H Variants UL-1: Non-return damper for airflows directed towards the installation side UL-2: Non-return damper for airflows directed towards the rear side (suction)