Blauberg VG 150

For automatic shutoff of air ducts installed in various premises when the fan is off.Gravitationally actuated.Compatible with Ø 100 up to 315 mm round air ducts.

Fixed inside round ventilation ducts. Provide free gravity actuating of the louvre shutters.While mounting into the ventilation system match air flow direction.

Galvanized steel case.  Equipped with pivoted gravity louvre shutters made of PVC built inside the inner frame.Louvre shutters are opened by air pressure and are closed automatically when the fan is off.The spigot is equipped with rubber seals.