Beteccad VCD B 20 Series Opposed Blade Air Damper (AMCA Certified)

The Beteccad VCD B 20 Series is a precision-engineered air damper designed for commercial and industrial HVAC applications. Certified under AMCA 500-D-12 standards, this damper ensures Class-I leakage performance, making it ideal for environments requiring strict air quality control and energy efficiency. The 'B' designation indicates opposed blade operation, providing superior pressure balance and minimal turbulence compared to parallel blade designs.

Construction & Materials

Built with a robust roll-formed galvanized steel 'C' channel frame (150 x 30 x 1.2 mm), the damper features embossed edges to minimize air leakage. The blades are constructed from 1.2 mm thick galvanized steel in a 3V profile, ensuring rigidity and smooth operation. To enhance durability and reduce noise, the system utilizes nylon bushings and concealed galvanized steel linkages within the frame.

Key Features

• AMCA Class-I Certified: Verified low leakage performance for critical applications.
• Opposed Blade Design: Balanced airflow with reduced noise and vibration.
• Durable Frame: 18-gauge galvanized steel C-channel with embossed sealing.
• Smooth Operation: Optional heat-resistant nylon gear wheels for rattle-free actuation.
• High Velocity Capability: Designed for air velocities up to 2000 fpm (10.1 m/s).
• Operating Pressure: Rated for up to 6" w.g (1500 Pa).

Applications

These dampers are suitable for return air, exhaust, and ventilation ducts in buildings where precise airflow regulation is essential. Optional stainless steel (304/316L) or aluminum frames are available for corrosive environments or food-grade facilities.