GI DUCT FABRICATION

I (Galvanized Iron) duct fabrication involves creating ducts from galvanized iron sheets, which are treated to resist corrosion. The process typically includes:

1. Design: Planning the duct layout based on airflow requirements and space constraints.
2. Material Selection: Choosing appropriate galvanized iron sheets, usually specified by thickness (gauge).
3. Cutting: Using tools like shears or plasma cutters to cut sheets to required dimensions.
4. Forming: Bending and shaping the sheets into desired duct shapes, often using a brake or other forming tools.
5. Joining: Connecting pieces using rivets, screws, or welding; sealing joints with duct tape or mastic.
6. Finishing: Ensuring all edges are smooth and secure to prevent air leaks.

Proper insulation and support structures may also be added depending on the application.