SOLER & PALAU BD8 8" Back Draft Damper

The SOLER & PALAU BD8 Back Draft Damper is a ventilation control fitting that regulates airflow movement within an 8-inch duct path by opening during fan operation and closing when airflow stops. Its gravity-operated blades respond to pressure changes, preventing unwanted reverse air movement through the pipe. The damper is placed inside the vent connection for exhaust, intake, or airflow applications where airflow direction needs control in HVAC systems. Lightweight blade movement, reduced air reversal, and controlled passage through the conduit route support maintaining the intended drainage arrangement of the system.