Damper (flow) Opposed blade dampers in a mixing duct. A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air handler, or other air-handling equipment.

Jun 4, 2025 · Discover how HVAC damper works to control airflow in your heating and cooling system. Learn about different types, functions, and maintenance tips for optimal performance.

Jan 5, 2023 · When an HVAC system is turned on, the dampers in the ductwork open to allow air to flow through the system. As the air flows through the ductwork, it passes through the different zones and …

What is an HVAC Damper? An HVAC damper (also called a duct damper) is a movable plate, located in the ductwork, that regulates airflow and redirects it to specific areas of the home. In zoned HVAC …

Dampers help maintain an even temperature by adjusting the airflow throughout the house. When air is blocked in one section, it allows air to continue flowing in another area to provide a more even …

Sep 16, 2024 · Dampers are movable blades that are adjusted either automatically or manually to regulate the amount of airflow in the ducts of AHU.

Oct 20, 2025 · You can open and close dampers to direct airflow to certain areas called zones. Dampers help prevent overheating or overcooling, and they lower energy costs. You can manually or …

So, what exactly are HVAC dampers? These devices control and direct the flow of air within your HVAC system. By adjusting the position of the dampers, you can effectively manage the amount of air that …

Dec 10, 2025 · In HVAC, dampers control the flow of air. They work much like a valve that controls water flow. The damper’s blades will rotate along axles to either open or close the damper. In most …

To select a damper which will meet the requirements of a particular application, the relationship between the flow rate through the damper and the position of the damper blades must be understood. This …