Sealed Round Volume Control Damper (Manual)

Product Description

The Sealed Round Volume Control Damper (Manual) is designed to precisely regulate airflow in round HVAC and ventilation duct systems while minimizing air leakage. Featuring a centrally mounted butterfly blade and an external manual handle, it allows smooth and accurate adjustment of air volume for both supply and return air applications.

Equipped with an integrated EPDM sealing gasket, this damper significantly improves airtightness compared to standard models, helping reduce energy loss, prevent air leakage, and lower operational noise. Its compact circular design ensures easy installation in spiral ducts, flexible ducts, and round ventilation pipelines.

Manufactured from galvanized steel, with optional materials available, this damper provides durability, corrosion resistance, and long service life. It is especially suitable for applications where improved sealing performance and airflow control accuracy are required.

Key Features

• Butterfly Blade DesignCentral rotating blade enables smooth airflow control
• EPDM Sealing GasketEnhances airtightness and reduces leakage
• Precise Airflow AdjustmentIdeal for accurate balancing of air distribution systems
• Manual Control HandleEasy adjustment and position locking
• Low Noise OperationSealing reduces vibration and airflow noise
• Compact Round StructureSuitable for circular duct systems
• Durable ConstructionMade from galvanized steel, optional aluminum or stainless steel
• Energy EfficientReduced leakage helps improve system efficiency

Applications

• HVAC air distribution systems
• Commercial buildings (offices, malls, hotels)
• Residential ventilation systems
• Airflow balancing and commissioning
• Inline duct systems
• Supply and return air ducts
• Ventilation systems requiring improved airtightness
• Energy-efficient HVAC systems

Technical Specifications