Gravity shutters GS

The gravity shutter is designed for the ends of ventilation ducts, especially those that expel air from the building to the outside. It is designed for wall / facade mounting. Forced air flow in the duct (e.g. by a fan) raises the gravity louvers, which in turn causes the exhaust air to be ejected. In the absence of this movement, the grille structure provides protection against air recoil back into the building. In winter, the shutter prevents heat loss through an unsealed vent.

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