Round duct work | Duct work #ductwork

Round GI Duct Work

Round GI (Galvanized Iron) duct work is an essential component in modern HVAC systems, widely used for air distribution, ventilation, and exhaust applications. Fabricated from galvanized iron sheets, these ducts are durable, rust-resistant, and capable of withstanding different environmental conditions. Their circular or spiral shape ensures smooth airflow with minimal resistance, making them more efficient compared to traditional rectangular ducts.

One of the key advantages of round GI ducts is their strength and rigidity, which allows them to maintain shape and performance even under higher air pressure. They require fewer joints and sealing materials, reducing the chances of leakage and ensuring cost-effectiveness in both installation and long-term operation. The smooth inner surface also makes cleaning and maintenance easier.

Round GI duct work is commonly applied in commercial buildings, residential projects, and industrial facilities, where it serves for air conditioning, fresh air supply, kitchen exhaust, and mechanical ventilation. When installed properly with appropriate supports, gaskets, and insulation, round GI ducts provide a reliable and efficient solution for healthy indoor air quality.

GI Duct Insulation | Ducting Work

GI Duct Insulation

Galvanized Iron (GI) duct insulation is a critical aspect of Heating, Ventilation, and Air Conditioning (HVAC) systems. Insulating GI ducts helps improve energy efficiency, maintain desired air temperatures, reduce noise, and prevent condensation that can lead to corrosion or mold growth.

Typically, insulation materials such as fiberglass, nitrile rubber, or polyurethane foam are used. These materials are either wrapped around the exterior of the ducts or inserted within double-walled ducts. The insulation thickness varies depending on the application—usually between 25mm to 50mm for chilled water and air-conditioning ducts.

Properly installed insulation not only minimizes thermal losses but also contributes to a comfortable indoor environment by reducing temperature fluctuations. Additionally, it plays a vital role in enhancing the overall lifespan of the ductwork by minimizing exposure to moisture and environmental damage.

In summary, GI duct insulation is essential for efficient HVAC operation, cost savings, and long-term durability of the system.