PATIKIL 3 Inch HVAC Duct Manual Volume Backdraft Damper, Adjustable Airflow Ducting Branch Vent Damper Air Control Valve with Silicone Seal for HVAC Airflow Ducting Branch Vent Systems

• Color: Silver; Material: 201 Stainless Steel / Aluminum / Silicone / Rubber; Port Outer Diameter: 80mm / 3 inch; Length: 150mm / 5.9 inch; Packing List: 1 x HVAC Duct Manual Volume Backdraft Damper.
• Advantage: The body of the damper is made from stainless steel and the flap blade is made from aluminum, rust-proof, corrosion resistant. Airflow ducting backdraft damper features a silicone seal ring inside, providing good air tightness. Manual airflow adjustment is designed to use the manual handle on the valve to adjust the air volume from multiple angles. Designed with rubber rings on both ends of the duct damper to provide better sealing, reduce air leakage.
• Instruction: Simply slide the stainless steel manual adjustable air control valve directly into your ventilation pipe, and then use the pipe clamp and tape(not included) for a secure fit.
• Application: The manual volume damper is used for air volume regulation in an air ventilation system, and it is widely used in the HVAC industry. With that installed in your HVAC systems, you can easily control the airflow 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 outer diameter of the connector before placing an order.

The manual volume damper is used for air volume regulation in an air ventilation system, and it is widely used in the HVAC industry. With that installed in your HVAC systems, you can easily control the airflow rate or close off an air duct if needed, to some extent, it will increase the energy efficiency of your system. Specification Color: Silver Material: 201 Stainless Steel / Aluminum / Silicone / Rubber Port Outer Diameter: 80mm / 3.15 inch Length: 150mm / 5.91 inch Packing List: 1 x HVAC Duct Manual Volume Backdraft Damper Advantage The body of the damper is made from stainless steel and the flap blade is made from aluminum, rust-proof, corrosion resistant, and effectively prevents deformation. Airflow ducting backdraft damper features a silicone seal ring inside, providing good air tightness and it can prevent the air duct valve from leaking when it is closed. Manual airflow adjustment is designed to use the manual handle on the valve to adjust the air volume from multiple angles, helpful to control room temperature and stop the backdraft. Designed with rubber rings on both ends of the duct damper to provide better sealing and air tightness when connecting with air ducts, reduce air leakage and improve the energy efficiency of your HVAC systems. Instruction Simply slide the stainless steel manual adjustable air control valve directly into your ventilation pipe, and then use the pipe clamp and tape(not included) for a secure fit. NOTE: Please confirm the outer diameter of the connector before placing an order.