Big Herdzmen poultry ventilation dampers are clutch-type and automatically open and close. These dampers operate using centrifugal force; upon fan activation, they open quickly without putting any strain on the equipment.
In older ventilation systems, dampers opened due to air pressure from the fan blades. This placed significant stress on the fan at startup, increasing wear and tear and reducing its lifespan. Big Herdzmen's clutch-type dampers eliminate this problem.
This technology results in higher efficiency, longer lifespan, and lower energy consumption for the ventilation fans.