Rectangular Volume Control Damper

Rectangular Volume Control Damper with multiple parallel louver blades. Used for continuous flow regulation of air and flue gas; not designed for airtight isolation; commonly used for airflow balancing in ducts.

Applicable Media: Hot air, flue gas, ventilation air

Operating Temperature: ≤400°C

Common Materials: Q235B, Q355B; SS304 available for high-temperature blades

Drive Type: Manual / Electric / Pneumatic

Seal Rating: General leakage (for flow control applications)

Standards: GB/T 10868, AMCA 500

Key Selection Parameters

1. Duct cross-sectional width × height; 2. Medium temperature; 3. Maximum pressure differential; 4. Required control accuracy; 5. Number of blades