Round Spiral Duct
Round Spiral Duct is a type of circular air duct made by winding galvanized or stainless steel sheets into a continuous spiral seam. It is widely used in HVAC systems for the efficient distribution of air across commercial, industrial, and residential buildings.
Spiral ducts are known for their high strength, airtight construction, and smooth internal surface, which reduces air friction and noise. They require fewer joints and fittings compared to rectangular ducts, making them faster to install and less prone to air leakage.
Because of their clean look, round spiral ducts are also ideal for exposed ceiling designs in modern architecture such as malls, cafes, gyms, and tech offices.

Round Spiral Ducts
Round Spiral Duct is a type of circular air duct made by winding galvanized or stainless steel sheets into a continuous spiral seam
- The round shape and smooth inner surface ensure minimal air resistance, allowing for better airflow with less energy consumption from fans or blowers.
- Spiral ducts have fewer connections than rectangular ducts, which means less risk of air leakage and better system efficiency.