Multi-blade dampers, often referred to as multi-blade valves in an industrial context, are a category of mechanical flow control devices used primarily in air handling systems and ducting (HVAC, process ventilation, etc.).
They consist of a frame housing multiple parallel blades (or louvers) that pivot simultaneously to control the flow of air or gas.
Function: Their main function is to regulate or isolate the flow. They can be used for precise throttling (modulating the flow rate).
Design: The blades are linked by a mechanism (often external or internal linkage) that ensures they all move together, usually operated by an actuator (electric, pneumatic, or manual).
Key Advantage: They are highly effective for managing large ducts or channels due to the support offered by multiple blades, which maintains structural integrity and provides better flow control over a wide area compared to single-blade designs.
