Square & Rectangular Damper

Square & Rectangular Damper

The Square & Rectangular Damper is an industrial air and gas control device designed for square and rectangular duct systems. It is mainly used to regulate, distribute, shut off, or isolate airflow and industrial gases within ventilation and process piping systems.

The damper uses a blade structure to control the flow by changing the opening angle. When the blades are fully open, the passage allows air or gas to flow through with minimal restriction. By adjusting the blade position, the flow rate can be controlled according to the operating requirements. When closed, the damper can isolate a section of the duct system for equipment shutdown, maintenance, or process control.

The damper can be designed in different sizes and configurations to match various duct dimensions and operating conditions. Depending on the application, it can be equipped with manual handles, gear mechanisms, electric actuators, pneumatic actuators, or other drive systems for convenient operation and automatic control.

Key Features

• Designed for square and rectangular duct systems

• Suitable for airflow and industrial gas regulation

• Supports flow control, shut-off, and system isolation

• Robust blade and frame construction

• Flexible size and structural configurations

• Multiple actuation options for different operating requirements

• Suitable for normal-temperature and high-temperature applications with appropriate material selection

• Available with different sealing configurations according to operating conditions

• Easy to integrate into ventilation and industrial process systems

• Suitable for continuous industrial operation

Applications

Square & Rectangular Dampers are widely used in industrial ventilation, dust collection systems, flue gas treatment, air pollution control systems, boilers, industrial furnaces, thermal processing equipment, power plants, steel production, cement and building material industries, chemical processing, and other industrial gas handling systems.

They can be installed at duct inlets, outlets, branches, equipment connections, and other sections where airflow or gas flow needs to be regulated or isolated. The configuration can be selected according to duct size, operating temperature, gas characteristics, pressure requirements, and control method.

Operating Principle

The damper controls airflow through the movement of internal blades. When the blades rotate or move to different positions, the effective flow area of the duct changes accordingly. This allows operators or control systems to adjust the amount of air or gas passing through the duct.

For systems requiring automatic operation, an actuator can be connected to the damper mechanism. The opening position can then be controlled according to process requirements, allowing the damper to work as part of an automated ventilation, dust collection, or flue gas control system.

Custom Configurations

The Square & Rectangular Damper can be configured according to different duct dimensions and working conditions. Options may include damper size, blade arrangement, material, sealing structure, connection method, operating mechanism, and actuator type.

Different configurations can be selected for applications involving general ventilation air, dust-laden gas, flue gas, or higher-temperature industrial gases.