OBD / OBDA - Opposed Blade Damper

Opposed blade dampers (OBD/OBDA) are essential components in HVAC systems, providing precise airflow control for optimal comfort and energy efficiency. These dampers feature a robust construction with tapered blades set in a U-channel frame. The opposed blade design, with blades spaced 1" apart, allows for accurate airflow modulation by adjusting the degree of overlap. A convenient screwdriver slot operator ensures easy adjustment and balancing of airflow rates.

The primary distinction between OBD and OBDA lies in their material composition. OBD dampers are fabricated from durable steel, making them suitable for demanding applications requiring high strength and corrosion resistance. Conversely, OBDA dampers are constructed from lightweight aluminum, offering an excellent strength-to-weight ratio and suitability for projects where weight considerations are paramount. Both OBD and OBDA dampers feature a user-friendly screwdriver slot operator for effortless airflow adjustment.

OBD and OBDA opposed blade dampers find widespread use in a variety of HVAC projects within the construction industry. Their precise airflow control makes them ideal for applications such as balancing airflow in ductwork, regulating air volume in variable air volume (VAV) systems, and isolating airflow to specific zones. These dampers are commonly found in commercial buildings, institutional facilities, and industrial settings where accurate and reliable airflow management is crucial.