In the TDC (Transverse Duct Connector) flange system, after placing the flange profiles on the duct edges and installing the corners, the final and vital step is securing the longitudinal seam of the connection. Kian Fan Industrial Production Group, by producing special TDC cleats, has offered an efficient and reliable tool to complete this process. The structure of these cleats is typically made of galvanized steel sheet with appropriate thickness to provide the necessary tensile and bending strength.

The cleats are designed in a "clamp" style that easily locks onto two adjacent flanges. By applying concentrated force, these cleats pull the flange edges towards each other and create uniform pressure along the connection. This pressure causes the EPDM sealing tape placed between the flange and duct to fully compress, forming an impermeable seal.

Key Features and Advantages
The most important feature of Kian Fan's TDC cleats is the significant increase in installation speed. Unlike traditional methods that required lengthy bolting along the flange, using these cleats allows the assembler to secure and seal the connection in a fraction of the time. This creates considerable savings in labor costs in large projects with numerous connections.
High strength and stability are other advantages of this product. The cleats resist vibrations caused by airflow or fan operation and do not loosen the connection. The aerodynamic design of the cleats ensures they do not create significant protrusions on the duct surface after installation, preventing pressure drop or airflow turbulence. Additionally, the ability to open and close the cleats allows for access for system service or repairs.

Specialized Applications
TDC connection cleats are essential in all projects using rectangular ductwork systems with TDC flanges. In office and commercial buildings, these cleats are the primary assembly tool for quickly connecting duct branches in suspended ceilings. In factories and industries, where ducts must withstand higher pressures, the use of high-quality Kian Fan cleats is mandatory to guarantee connection safety.
Also, in central HVAC systems where compliance with air leakage standards (such as SMACNA) is required, TDC cleats play an important role in achieving these standards by applying appropriate pressure to the sealing tape. This product is also considered a smart choice in projects where delivery time is critical, due to accelerating the installation process.

Conclusion
The TDC connection cleats of Kian Fan Industrial Production Group, with simple yet effective design and robust structure, complete the modern rectangular duct connection system. Choosing this product guarantees fast installation, excellent sealing, and stable connections under harsh working conditions.