Multi-leaf Volume Control Dampers (VCD)
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Multi-leaf Volume Control Dampers (VCD) are used in HVAC systems to regulate and balance airflow in duct networks. By adjusting multiple parallel blades, they allow precise control of air volume, helping achieve uniform distribution across different zones. VCDs are widely used in commercial, industrial, and large residential ventilation systems to optimise comfort, efficiency, and system performance.
Material:
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Casing: Galvanised steel or stainless steel for durability and corrosion resistance
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Blades: Aluminium or steel, sometimes with rubber or silicone edge seals to reduce leakage
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Shaft & Bearings: Stainless steel or zinc-plated steel for smooth operation
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Actuation: Manual handle, gear, or compatible with electric/pneumatic actuators
Specifications:
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Adjustable multi-leaf blades for precise airflow control
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Suitable for rectangular or circular duct systems
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Manual or motorised operation available
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Pressure rating: low to medium pressure systems (typically 0–500 Pa)
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Sizes customizable to duct dimensions; standard finishes: galvanised steel, optional powder coating or stainless steel