Air Control Products: HHE/FSD
AirVent family →Smoke travels faster and further than flame, and the FSD stops both: fire-rated blades plus smoke-leakage performance, driven by actuators that respond to smoke detectors and the building management system. The life-safety damper for hospitals, high-rises and every compartment where smoke must not cross.
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Wherever a duct penetrates a fire-rated wall, slab or shaft. Codes treat them as life-safety devices: never the line item to value-engineer out of a penetration.
A 120°C thermal fuse or spring-return actuator slams the blades shut when heat arrives, so the duct stops carrying flame and smoke between compartments.
More from Dampers
Manual or motorized multi-blade dampers for balancing air volume across supply and return mains: the tap of the duct system.
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.
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