A sealed damper is a device that can regulate, control, or close the airflow in an air duct. It adjusts the air volume by changing the opening of the valve, thereby achieving the goal of controlling indoor temperature, humidity, and air quality.
Adjust air volume: Adjust the air flow through the air duct by changing the opening of the valve according to actual needs.
Maintain airtightness: When the valve is closed, ensure the airtightness of the pipeline system to prevent gas leakage.
Balance system pressure: In the ventilation system, the pressure of each branch pipeline is balanced by adjusting the opening of the air valve.
Prevent airflow backflow: In specific situations, such as when the wind direction changes, prevent airflow from backflow into the pipeline system.
Structure: There are various structural designs for sealed dampers, but they usually include valve bodies, valve plates (or valve cores), seals, actuators, and other parts. The valve body is the main frame of the air valve, supporting the entire device and connecting to the ventilation duct; The valve plate (or valve core) adjusts the size of the airflow channel by rotating or sliding; The sealing element ensures the airtightness of the air valve in the closed state; The actuator is responsible for driving the movement of the valve plate (or spool).
Material: The material selection of the sealed damper depends on its usage environment and medium characteristics. Common materials include stainless steel, carbon steel, galvanized sheet, etc. These materials have good corrosion resistance and mechanical strength, and can meet the requirements of different working conditions.