
High Quality Galvanized Steel Motorized Airtight Damper. High Sealing Performance: Features precise airflow control and reliable sealing for HVAC and fire safety systems. Customizable Sizes: Available in rectangular, round, and inner round/outer square shapes with custom dimensions. Multiple Actuation Options: Supports manual, electric (DC24V), and pneumatic actuation with feedback signal linkage. Durable Material Construction: Made of galvanized steel, stainless steel, aluminum blades, and rubber/silicone seals. Wide Application Scope: Ideal for HVAC, labs, medical clean ventilation, commercial buildings, and industrial workshops. Professional Manufacturer: Established in 1996 with ISO9001 certification and nearly 30 years of industry experience. OEM/ODM Services: Offers full customization, minor customization, and flexible customization based on drawings. Strict Quality Control: 100% inspection for finished products including visual and function checks.