T/T, L/C
Flange Corner are important connecting and reinforcing components in ventilation duct systems, mainly used for corner treatment of rectangular ducts.
TDF Corner
TDF Corner is a key type of duct corner used in TDF (Transverse Duct Flange) duct systems to reinforce the flange frame and ensure strong, airtight connections. As a specialized duct corner designed for machine-formed TDF flanges, it provides reliable support and sealing performance in rectangular HVAC ducts. Manufactured from galvanized steel, stainless steel, or aluminum, TDF Corners deliver excellent structural stability, precise alignment, and leak-resistant performance for a wide range of ventilation applications.Manufactured by Beiouli, these corners are made from galvanized steel, stainless steel, or aluminum, ensuring durability, precise alignment, and reliable leak resistance.
Commercial and industrial HVAC duct systems
Cleanrooms, laboratories, and food processing plants
Large or high-pressure duct installations
Modular or prefabricated ductwork requiring fast assembly
Reinforces duct frames to maintain shape, prevent deformation, and improve airflow stability.
Tight joints reduce air leakage, increasing energy efficiency and lowering operational costs.
No welding required; mechanical fastening allows fast, uniform assembly on-site or in the workshop.
Available in galvanized steel, stainless steel, or aluminum to withstand various environmental conditions.
Beiouli’s automated production lines and strict quality control ensure consistent corner dimensions, material quality, and performance across large-scale projects.
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Product Name |
TDF Duct Corner For HVAC Ventilation Duct Accessories Flange Corner |
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Application |
Ventilation Duct System |
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Material Quality |
Steels |
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Color |
Silver |
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Size |
104 |
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Thickness |
1.0mm |
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Advantages |
Durable, corrosion-resistant, easy to install |
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Business Type |
Manufacturer |
Prepare the duct flange: Ensure the TDF flange is correctly formed and free of deformation.
Insert the TDF Corner: Align and press the corner into the flange slot securely.
Check alignment: Confirm all four corners are fully seated and the duct frame is square.
Secure the joint: Fasten duct sections using bolts, cleats, or clamps as required.
Inspect airtightness: Verify no gaps exist; use gaskets or sealants for high-seal applications.
1. Strengthen the connection: fix the four corners of the air duct, enhance the overall structural strength, and prevent deformation during transportation or installation.
2. Auxiliary sealing: Cooperate with flanges and sealants to reduce joint air leakage and improve system airtightness.
3. Easy installation: As a prefabricated component, it simplifies the construction process and reduces on-site cutting or welding.
1. Rich production experience, self owned factory and equipment, integrating research and development, production, sales, and service.
2. Strong productivity, supports customization, accepts ODM/OEM services, fast delivery time, and competitive prices.
3. Convenient geographical location, adjacent to Shanghai, Ningbo, and Yiwu, with convenient and fast sea and land transportation.
TDF Duct Corner For HVAC Ventilation Duct Accessories Flange Corner packaging and Transportation:
Our products are exported to Southeast Asia, the Middle East, Africa, Europe, Australia and other countries and regions. We welcome domestic and foreign customers and friends to come and inspect cooperation! High quality service, consistent, worry free after-sales, customer first！
Our products are made of high-quality materials and undergo strict quality control to ensure their stability and durability. Before leaving the warehouse, there is a dedicated QC for inspection, and we strive to do better!
