Butterfly flaps for ventilation chimney 840 mm

Entimendable butterfly flaps for ventilation chimney with a diameter of 84 cm. The offered flaps are designed for chimneys with forced ventilation.

The flaps for the ventilation chimneys are made of plastic. Mounted hinges allow for smooth opening of the ventilation flaps. The lightweight material from which they are made makes the flaps tilt automatically when starting the fan. There is no need to use additional actuators. Chimney flaps protect against water getting inside the building.