Check valve OK d150 plastic ERA 150 OK

OK series check valve is designed for ERA, DICITI, and AURAMAX series domestic axial exhaust fans with a 150mm nozzle diameter. The body and shutters of the OK series valve are made of ABS plastic. The design of the OK valve allows for reliable fixation of the shutters, preventing them from falling out or jamming during installation and operation of the valve. The spring mechanism ensures full opening of the valve shutters when the fan is operating and their full closure when backdraft occurs; Does not obstruct natural ventilation; Provides protection against various odors that may seep through the ventilation openings.