Flue Gas Flap Damper

Single heavy-duty flap damper for flue gas bypass or emergency shut-off. Single plate swing structure, simple and reliable, suitable for large rectangular flue gas bypass pipeline.

Heavy-duty Flue Gas Flap Damper, used for flue gas bypass or emergency shutdown. The single-leaf swing design is simple and reliable, making it suitable for large-cross-section rectangular flue gas bypass ducts.

Applicable media: High-volume flue gas, dust-laden flue gas

Operating temperature: ≤420°C

Common Materials: Q235B, Q355B; 16Mn, SS304 for high-temperature applications

Drive Type: Electric / Pneumatic / Hydraulic (hydraulic drive preferred for large diameters)

Seal Rating: Medium to low leakage (for bypass applications with medium to low leakage)

Standards: ASME B31.1, GB/T 13927

Key Selection Parameters

1. Pipe cross-sectional width × height; 2. Design pressure differential; 3. Temperature; 4. Dust content; 5. Open/close actuation time