TDF Flange
TDF Flange
The TDF (Transverse Duct Flange) is a specialized flange system used in HVAC (Heating, Ventilation, and Air Conditioning) ductwork, designed to facilitate secure and efficient connections between duct sections. Unlike traditional methods that may involve separate flange pieces, the TDF flange is integrated directly into the duct during the manufacturing process.
Integrated Flange Profile: The flange is roll-formed onto the ends of the duct sections, eliminating the need for separate flange components.
- Hemmed Edge: The flange features a hemmed edge turned inward, enhancing safety by removing sharp edges and providing additional strength
- Corner Pieces: Specialized corner pieces are used to join the flanged ends of the ducts, ensuring a tight and secure connection.
- Clips or Cleats: These are employed to hold the flange sections together, further securing the connection

The TDF (Transverse Duct Flange) is a specialized flange system used in HVAC (Heating, Ventilation, and Air Conditioning) ductwork, designed to facilitate secure and efficient connections between duct sections. Unlike traditional methods that may involve separate flange pieces, the TDF flange is integrated directly into the duct during the manufacturing process.
HVAC Systems: For connecting rectangular duct sections in residential, commercial, and industrial buildings.
Exhaust Systems: Facilitating the safe and efficient removal of air from buildings.
Air Handling Units: Integrated into units to manage and distribute air throughout a space.