About This

[Stainless Steel Material]:The HVAC Duct Manual Volume Damper body is made from stainless steel material, durable material resists rust and corrosion superbly,ensuring reliable performance even in humid and high-temperature conditions.
[Manual Airflow Control]: You can easily adjust ventilation levels and prevent backdraft by using the convenient manual adjustment handle. The duct damper is designed for simple operation from multiple angles, and it helps you maintain optimal room temperature comfort and air quality. For best results,the backdraft damper should be installed in an easily accessible location.
[Edge Silicone Sealing]: The Backdraft Damper features an internal rubber seal ring, ensuring reliable airtightness and preventing gas leakage when the valve is closed. Additionally, two external black rubber rings are fitted at both ends, enhancing the seal between the damper and the pipeline. The seal ring design also helps cushion vibrations and absorb shocks, reducing operational noise and energy loss.
[Easy Installation]: Step 1: Position & Slide Measure duct dimensions and determine installation location Slide valve body into ventilation duct Step 2: Connect & Secure Connect dual ducts according to airflow direction arrow Fasten damper with duct clamps TIPS: Position operating handle for easy access and visible scale reading Step 3: Test Loosen locking nut→Rotate handle to desired position→Re-tighten locking nut to fix handle position
[Wide Range of Applications]: The Manual Damper Primarily used for airflow control in ventilation and air conditioning (HVAC) system ducts. This damper is installed within ventilation system piping to regulate airflow in settings such as commercial buildings;industrial facilities;laboratories.It enables precise airflow direction control and enhances overall system energy efficiency.