The VCD-23 is a general purpose control damper with 3V blades. This model can be used in applications as an automatic control or manual balancing damper with low to medium pressure and velocity systems.

Perforated return grilles have a standard 51 percent free area on the face and can be used as a matching return in conjunction with perforated supply diffusers. Additional options include a filter frame and steel, aluminum or stainless steel construction. FEATURES AND BENEFITS Models 8R provides a smooth, perforated face that fits flush with the ceiling to blend with the room decor 3/16” staggered holes on ¼” centers 51% free area Optional opposed blade damper has screwdriver adjustment accessible through face of grille Material is steel

The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.

• Width and height furnished approximately 0.125 in. under size