Backdraft damper for axial domestic fans ERA series (except ERA 6) STANDARD; AURA; SLIM 125mm ERA 125 OK

The OK series check valve is designed for ERA, DICITI, and AURAMAX series domestic axial exhaust fans with a nozzle diameter of 125 mm. The OK series valve housing and flaps are made of ABS plastic. The OK valve design allows for reliable fixation of the flaps, preventing them from falling out or jamming during installation and operation. The spring mechanism ensures full opening of the valve flaps when the fan is operating and their full closure when backdraft occurs; It does not obstruct natural ventilation; It provides protection against various odors that may seep through the ventilation openings.