Air Control Products: HHE/VCD
AirVent family →Every balanced system is balanced through VCDs: multi-louver blades on sealed bearings, driven by a gear-operated handle or a motorized actuator, holding their set position for years above ceilings and inside shafts. GI construction as standard, SS304 where the airstream is corrosive.
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It is the tap of the duct system. Balancing engineers adjust its blades until every terminal delivers design airflow, and the damper holds that set position for years above ceilings and inside shafts.
More from Dampers
Aerofoil-blade VCDs: shaped blades that throttle high-airflow mains with less noise and turbulence than flat blades.
Round VCDs: single-blade volume control for round ducts, spigots and branch take-offs.
Weight-balanced dampers that automatically vent excess pressure: holding cleanroom and stairwell pressurization on target.
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