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Duct Corner for HVAC ventilation duct accessories Flange Corner are important connecting and reinforcing components in ventilation duct systems, mainly used for corner treatment of rectangular ducts.
Flange Corner
| Attribute | Flange Corner |
|---|---|
| Product Name | Duct Corner for HVAC Ventilation |
| Application | HVAC system、Ventilation Duct System |
| Material Quality | Steels、304 Stainless Steel |
| Color | Silver |
| Size | 130 |
| Thickness | 1.0mm、1.2mm |
| Advantages | Durable、Corrosion-resistant、Easy to install |
| Business Type | Manufacturer |
A Flange Corner is a structural connector used to join and reinforce the corners of duct flanges in rectangular or square ductwork systems. It is typically installed in TDC (Transverse Duct Connection) or TDF (Transverse Duct Flange) flange systems and is essential for ensuring rigid connections, air-tight performance, and easy assembly of HVAC ducts.
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.
| Problem | How Flange Corner Solves It |
|---|---|
| 1. Weak flange joints and unstable duct structures | Flange corners reinforce the corners of the duct, providing strong mechanical support and ensuring structural stability, even under airflow pressure or vibration. |
| 2. Time-consuming installation and high labor costs | With pre-formed shapes and standardized sizes, flange corners allow for quick, tool-free assembly—reducing man-hours and boosting productivity. |
| 3. Air leakage and poor system airtightness | They ensure precise alignment and tight sealing at the corners, minimizing air leakage and improving energy efficiency. |
| 4. Rust, corrosion, and frequent maintenance | Made from galvanized or stainless steel, flange corners resist corrosion in humid or coastal environments, extending the service life of duct systems. |
| 5. Compatibility issues with different flange sizes | Available in 30mm, 35mm, 40mm, and 45mm, they are fully compatible with industry-standard TDC and TDF flange profiles. |
| 6. Inconsistency in large-scale production | High-precision manufacturing ensures consistent size and quality across batches—ideal for prefabricated duct production lines. |
| 7. Limited customization options | OEM & ODM services support custom stamping, punching, logo marking, and surface treatments to meet unique project or branding needs. |
Duct Corner for HVAC ventilation duct accessories Flange Corner Used for HVAC systems, smoke exhaust systems, industrial ventilation systems, etc.
Beiouli is a leading manufacturer and exporter of HVAC duct accessories, with a specialized focus on duct corners, flange corners, and custom sheet metal components for rectangular duct systems. We combine engineering precision, manufacturing strength, and global service capability to support contractors, fabricators, and OEM clients worldwide.
Factory-Direct Manufacturing
With our own production base and tooling capabilities, we ensure consistent quality and competitive prices without intermediaries.
Full Range of Duct Corners
We offer a complete selection from 20mm to 45mm duct corners, compatible with TDC/TDF flange systems, including galvanized steel and composite material options.
Strict Quality Control
Every product undergoes multiple inspections to meet international standards. Quality and durability are guaranteed, even in demanding HVAC environments.
OEM/ODM Services
We support custom stamping, punching, logo marking, and packaging to meet project-specific or branding needs.
Fast Global Shipping
With streamlined logistics and strong inventory control, we offer fast delivery to Europe, North America, the Middle East, and Southeast Asia.
B2B-Focused Support
Our team understands the needs of HVAC engineers, ductwork contractors, and system integrators, offering technical guidance and responsive service throughout the project lifecycle.
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!
