PATIKIL 4" Duct Damper, Stainless Steel Motorized Adjustable HVAC Volume Dampers Airflow Backdraft Damper Control for HVAC Air Balancing System, AC 24V

Color: Silver Tone; Material: 201 Stainless Steel; Power Supply: AC 24V; Adjustable Angle: 90 Degree; Inner Diameter of Interface: 100 mm / 4 Inch; Overall Size: 150 x 1 mm / 6 x 0.04 inch (L*T); Packing List: 1 x Duct Motorized Volume Damper. Advantage: 1. Made of 201 stainless steel, good hardness, nice corrosion and rust resistant. 2. The damper can be adjusted to regulate the volume of air passing through the duct, which can be adjusted up to 90 degrees, providing flexibility in HVAC system balancing. 3. With its airflow backdraft prevention feature, the damper with silicone sealing ring ensures that air flows in the desired direction, preventing unwanted drafts or air leakage.. Instruction: The damper is equipped with a motorized mechanism, allowing for precise and convenient control of airflow, offering benefits of comfort, energy efficiency, and noiseless operation. Easy to install, just simply slide the volume damper into the pipe you are attaching to, and fix it with pipe clamp and tape. (pipe clamp and tape are not included here). Application: The motorized volume damper is used for air volume regulation in an air ventilation system, widely used in HVAC industry. With that installed in your HVAC systems, you can easily control the air flow rate or close off an air duct if needed, to some extent, it will increase the energy efficiency of your system.. Note: Please confirm the inner diameter of the air volume damper before placing an order and the recommended temperature range is -10 - 70 centigrade.