Low-Leakage Volume Control Damper

• Class 1 air leakage — ultra-tight blade and frame seals
• EPDM blade edge seals for air-tight closure
• Galvanized steel frame with extruded aluminium blades
• Leakage < 0.1 m³/(h·m²) at 1000 Pa (per EN 1751)
• Ideal for clean-rooms, hospitals, and pressurized systems
• Modulating actuator recommended for VAV applications
• Sizes: 200mm × 200mm to 1200mm × 600mm
• Optional stainless steel upgrade for pharmaceutical use