Ventilation damper VM UN 0926

Intended for equipping ventilation installations, the CAR backflow dampers prevent outside air from entering the premises in the event of a fan stop. The damper flaps are in the open position when the fan is running and close automatically when the fan stops. Non-return valves are installed by simply fitting them into the pipeline, a sealing foam ensures sealing. In the case of installation in a vertical duct, the shutters must open upwards. Be careful to respect the installation direction so that the louvers are in the open position when the fan is running. Anti-return in operation.