Damper manufacturers
Dampers are used to regulate, direct, or isolate the flow of air or gas in ducts, stacks, process ventilation systems, and combustion air circuits. The flow-modulating element is typically a blade, louver, or butterfly-style disc that rotates or slides to adjust the open area and control flow rate or pressure. Unlike process valves used for liquids, dampers are designed for low-density gas flow and large face areas rather than high sealing forces.
Dampers can be manually adjusted or automated with electric, pneumatic, or hydraulic actuators for remote or continuous control. Blade geometry and sealing arrangements vary depending on temperature, differential pressure, and leakage requirements. High-temperature dampers may include insulated blades, refractory linings, or metal-to-metal sealing systems for furnace and flue gas service.
Dampers are used in power plants, industrial furnaces, drying systems, air handling units, dust collection systems, and process exhaust lines. Proper selection considers temperature range, gas composition, required shutoff tightness, flow resistance, and actuator torque to ensure stable operation and reliable control.