Airfoil’s Australian Made Opposed Blade Damper (OBD) is built from top-quality extruded aluminium for lasting durability. Available in various sizes, this damper efficiently balances airflow in both supply and exhaust applications. Its unique frame easily clips onto Airfoil grilles, simplifying installation. We keep a range of OBD sizes in stock for immediate dispatch.
The OBD blades are held within a 47mm deep frame using punched holes, spring-loaded wire, and knock-on star washers, ensuring stability. The fully adjustable blades are angled at 45 degrees when closed and 180 degrees when open. Airflow volume can be adjusted via the grille using a flat-head screwdriver, with the circular screw control turning clockwise to open and anticlockwise to close the damper. Standard finish is Matt Black powder-coated for a sleek look behind the grille. Airfoil’s OBDs are perfect for commercial buildings needing precise air balancing.
We acknowledge the Traditional Owners of the lands we operate on and pay our respects to their Elders, past, present and emerging.