Rectangular Ducting/ Square Ducting is produced using an automatic machinenary that is able to create Transverse Duct Flange (TDF). By using TDF, leaks can be reduced and installations will be easier and more economical. This is because each process of connecting rectangular/square ducts uses TDF Corner, not just any other rectangular metal connectors.
More ECONOMICAL: No Angle Flangerequired to connect ducting joints.
The size is much more PRECISE than manual measurement.
The RISK OF LEAKS is reduced greatly compared to products that manually created.
The PRODUCTION and INSTALLATION process is much FASTER and more efficient than normal rectangular ducting production
1. L - Shape
Joints in L form or two parts of longitudinal Pittsburgh seams.
2. Four Piece
Joints of four-piece or four parts of longitudinal Pittsburgh seams.