Baffles / Dampers

Baffles and dampers are engineered components installed within industrial collection hoods to manipulate airflow patterns, control exhaust velocities, and enhance particulate matter capture. Baffles are stationary or adjustable plates that redirect airflow to create turbulence or laminar flow, while dampers are movable mechanisms (butterfly, guillotine, or louver types) that modulate airflow volume by varying the cross-sectional opening. Together, they optimize hood performance by balancing static pressure, minimizing energy consumption, and preventing particulate re-entrainment in ventilation systems.

Baffles work by creating controlled airflow resistance and directional changes through strategic placement, inducing turbulence to improve particle impaction on filter surfaces. Dampers operate via mechanical adjustment (manual, pneumatic, or electric actuation) to regulate airflow volume by altering duct cross-section, maintaining optimal face velocity (typically 0.5-2.5 m/s) for efficient contaminant capture while minimizing system pressure drop. Both components follow fluid dynamics principles (Bernoulli's equation and pressure differentials) to achieve targeted airflow distribution.