Product Description

The Round Volume Control Damper (Manual) is designed to regulate and balance airflow in round HVAC and ventilation duct systems. Featuring a centrally mounted butterfly blade and an external manual handle, it allows easy and precise adjustment of air volume for supply and return air applications.

The integrated sealing design enhances airtightness and reduces air leakage, improving system efficiency and airflow control performance. Its compact circular structure ensures easy installation in spiral ducts, flexible ducts, and round ventilation pipelines.

Manufactured from galvanized steel, this damper provides durability, corrosion resistance, and long service life. It is widely used in residential, commercial, and light industrial HVAC systems for airflow balancing, system commissioning, and ventilation control.

Key Features

• Butterfly Blade Design Central rotating blade enables smooth and efficient airflow regulation
• Manual Control HandleEasy adjustment and locking of airflow position
• Accurate Airflow ControlSuitable for balancing supply and return air systems
• Integrated SealImproves airtightness and reduces leakage
• Compact Round StructureIdeal for circular duct connections
• Durable ConstructionMade from galvanized steel for long-term use
• Easy InstallationCompatible with spiral ducts and round ventilation pipes
• Low MaintenanceSimple mechanical design without complex components

Applications

• HVAC air distribution systems
• Residential ventilation systems
• Commercial buildings (offices, shops, apartments)
• Bathroom and kitchen ventilation
• Inline duct systems
• Airflow balancing during commissioning
• Supply and return air duct systems
• Round duct airflow control

Technical Specifications