Turnkey Cleanroom Solutions And Hvac System Service Provider

constant air volume valve

Constant air volume (CAV) valves are key components in industrial HVAC ventilation systems for precise airflow control. They automatically maintain a constant airflow within the duct, unaffected by system pressure fluctuations, ensuring stable ventilation.

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Product feature

● Core Functions and Working Principles

Core Function: Precisely locks in the airflow within the duct, preventing excessive or insufficient airflow due to changes in fan pressure or duct resistance. Suitable for industrial scenarios requiring constant ventilation (e.g., cleanrooms, laboratories, explosion-proof workshops).

Working Principle: Built-in spring or gravity-based adjustment mechanism. When duct pressure changes, the valve automatically opens and closes to adjust resistance, offsetting pressure fluctuations and maintaining a constant set airflow. Some intelligent models can achieve remote adjustment via a motor and sensor.

●Key selection parameters:

Airflow range: 50-10000 m³/h (common range for industrial use).

Operating pressure: -500Pa~+1000Pa (suitable for ventilation duct pressure environments).

Material: Galvanized steel sheet (general applications), stainless steel (corrosion-resistant/high-temperature applications), flame-retardant plastic (explosion-proof applications).

Control methods: Manual adjustment (basic model), automatic mechanical adjustment (mainstream model), electric intelligent adjustment (can be linked to PLC).