About This Durable Material: The body is made from stainless steel material and the flap blade is made from aluminum, durable material for long-lasting performance. Constructed with sturdy components to ensure reliability. (Size: Port Outer Diameter: 200mm / 8 inch; Length:190mm / 7.5 inch) Manual Airflow Adjustment: Enjoy a comfortable environment with our damper sleeve, designed to use the manual handle on the valve to adjust the air volume from multiple angles. This is helpful to control room temperature and stop the backdraft. It is also important to know that the damper sleeve should be installed in places where you can easily control the handle. Edge Silicone Sealing: Our damper sleeve features a rubber seal ring inside, providing good air tightness and it can prevent the air duct valve from leaking when it is closed. Also, this innovative design ensures smooth and silent operation when the flap board opens or closes. Easy to install: Simply slide it directly into your ventilation pipe, and then use the pipe clamp and tape for a secure fit. Save time and effort with our design that allows for quick and straightforward installation. Applications: 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. Overview Material : Aluminum, Rubber, Stainless Steel Brand : PATIKIL Item dimensions L x W x H : 8.66 x 8.66 x 7.87 inches Exterior Finish : Stainless Steel Inlet Connection Size : 8 Inches Inlet Connection Type : Flange Outlet Connection Type : Flange Number of Ports : 2 Outlet Connection Size : 8 Inches Manufacturer : PATIKIL
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