OBD-R2: Round Damper (Radial Style)
The Round Opposed Blade Damper (OBD) is an adjustable, openable airflow regulator designed specifically for use with round adjustable vents or diffusers. The standard surface features a matte black powder coating. OBDs are ideal for commercial buildings requiring precise air balance.
Standard Construction
- Material: Steel
- Finish: Black/Dark Grey
Common Misconceptions (VCD VS OBD)
The airflow through the OBD is constant. Since the purpose of the OBD is roughly the same as that of the air volume control valve (VCD) used in ductwork, some industry professionals also refer to it as VCD.
However, for convenience and to avoid confusion, it is called OBD. Customers can turn the controller with a screwdriver to control the movable slide plate on the OBD, thereby adjusting the opening angle of the blades and keeping the position fixed within the adjustable range to achieve the purpose of airflow regulation.