A multi vane damper is a type of damper consisting of multiple vanes or blades that are positioned within a fluid flow to control the flow rate or pressure. These vanes can be adjusted to various angles to regulate the amount of fluid passing through the damper, allowing for precise control of the system. Multi vane dampers are commonly used in HVAC systems, industrial processes, and automotive applications to dampen vibrations, control airflow, or regulate pressure levels.