Electric Multi-blade Round Damper

The Electric Multi-blade Round Damper is an automatic airflow control device designed specifically for circular duct ventilation and air conditioning systems.Featuring a multi-blade synchronous linkage structure and high-precision electric driving system,this round damper realizes accurate stepless adjustment,stable air volume balancing,and reliable duct opening and closing.It is widely used in commercial HVAC systems,building ventilation,industrial air supply and exhaust,and environmental protection duct systems.Optimized for circular pipeline installation,the damper solves the problem of uneven airflow regulation of traditional single-blade round dampers,providing more linear control performance and lower wind resistance.

Structural Features

The damper adopts an integral high-strength circular frame with standardized flange size for quick and seamless connection with round ducts.Equipped with multiple parallel aerodynamic blades,the whole structure features high rigidity,uniform stress and no deformation under long-term wind pressure.All blades operate synchronously through precision linkage mechanism,ensuring identical opening angle and consistent airflow distribution.The surface of the blades and frame is treated with galvanized or anti-rust coating,delivering excellent anti-corrosion and oxidation resistance for long-term indoor and outdoor ventilation operation.

Electric Control Performance

Matched with a high-quality electric actuator,the damper supports automatic angle adjustment,remote centralized control and manual emergency operation.It can receive 0–10V or 4–20mA analog signals to achieve precise airflow modulation,effectively balancing system air volume,adjusting pipeline wind pressure and improving overall ventilation efficiency.The electric drive features fast response,accurate positioning and stable operation without jitter or angle deviation during frequent switching.With overload protection and anti-interference design,it ensures continuous and reliable operation in complex building and industrial environments.

Core Advantages

Firstly,the multi-blade design provides ultra-linear airflow adjustment,making air volume control more accurate than traditional single-blade round dampers.Secondly,the streamlined blade structure greatly reduces wind resistance and ventilation pressure loss,improving energy-saving performance of the entire ventilation system.Thirdly,the optimized sealing structure effectively reduces air leakage when fully closed,ensuring good isolation effect for zone ventilation control.In addition,the product features compact structure,easy installation,zero daily maintenance and long service life.

Main Applications

-Commercial building HVAC ventilation and air conditioning systems

-Public facility air supply,exhaust and air volume balancing

-Industrial workshop general ventilation and dust exhaust pipelines

-Environmental protection equipment and air purification systems

-Mechanical ventilation and negative pressure control systems