Manual Backdraft Damper, Galvanized Metal Volume Damper with Adjustable Handle for HVAC Air Balancing Systems, Range Hoods (Connecting Pipe OD 200mm / 7.87in)

Feature: 【Air Volume Adjustment】This manual volume damper can be used for branch pipe air volume adjustment. At the same time, it supports the mixing control of fresh air and return air, which meets the needs of different ventilation scenarios. Its design focuses on practicality, helping users to easily optimize airflow distribution and improve system efficiency 【Galvanized Material】This vent ducting damper is made of galvanized metal, which has good hardness and high temperature resistance, and is not easy to be deformed or corroded in long-term use. The surface plating can effectively resist the influence of humid environment, and keep the appearance clean, suitable for a variety of ventilation system installation 【Adjustable Handle】Equipped with a fastened rotating handle, it is easy to operate, and the volume of air can be precisely controlled by turning it. The handle is wrapped with a non-slip cover, which makes it comfortable to hold, avoids slipping, and ensures the adjustment process is safe and smooth 【Widely Used】Suitable for air conditioners, dryer vents, range hoods, heating systems and various types of ventilation equipment, compatible with residential, commercial and industrial environments. Multi-functional design makes it a practical component in HVAC systems 【Multiple Sizes Available】Provide eight different sizes of manual volume dampers, adapting to a variety of piping outside diameter. It is recommended to confirm the duct size before purchase to ensure tight connection and optimal performance to meet different installation needs Specification: Name: Manual Volume Damper Material: Galvanized Metal Size: As Shown Connecting Pipe Outer Diameter: 200mm / 7.87in Package Included: 1 * Manual Volume Damper ​

• 【Air Volume Adjustment】This manual volume damper can be used for branch pipe air volume adjustment. At the same time, it supports the mixing control of fresh air and return air, which meets the needs of different ventilation scenarios. Its design focuses on practicality, helping users to easily optimize airflow distribution and improve system efficiency
• 【Galvanized Material】This vent ducting damper is made of galvanized metal, which has good hardness and high temperature resistance, and is not easy to be deformed or corroded in long-term use. The surface plating can effectively resist the influence of humid environment, and keep the appearance clean, suitable for a variety of ventilation system installation
• 【Adjustable Handle】Equipped with a fastened rotating handle, it is easy to operate, and the volume of air can be precisely controlled by turning it. The handle is wrapped with a non-slip cover, which makes it comfortable to hold, avoids slipping, and ensures the adjustment process is safe and smooth
• 【Widely Used】Suitable for air conditioners, dryer vents, range hoods, heating systems and various types of ventilation equipment, compatible with residential, commercial and industrial environments. Multi-functional design makes it a practical component in HVAC systems
• 【Multiple Sizes Available】Provide eight different sizes of manual volume dampers, adapting to a variety of piping outside diameter. It is recommended to confirm the duct size before purchase to ensure tight connection and optimal performance to meet different installation needs