20mm Galvanized Steel Duct Corner for HVAC

The HVAC Duct Flange Corner is a key connecting component used in ventilation duct systems. It is installed at the four corners of a duct flange frame, ensuring firm connection, structural stability, and good air-tightness between duct sections.

Typically made from galvanized steel, stainless steel (SS304/316), or aluminum alloy, the flange corner is designed to match common flange systems such as TDC and TDF. It provides excellent strength, easy installation, and reliable sealing performance, making it widely used in HVAC systems, construction, and industrial ventilation.

Specifications

Key Features of HAVC Duct Flange Corner

• High Strength & Durability:
  Made of high-quality galvanized steel with optimized thickness for structural integrity and long-term use, even under high pressure or vibration.

• Corrosion Resistance:
  The galvanized surface provides strong protection against rust and oxidation, suitable for long-term operation in humid or industrial environments.

• Easy Installation:
  Standardized 20 mm (T20) and 30 mm (T30) dimensions make assembly quick, consistent, and compatible with common TDC/TDF duct systems.

• Stable Structure:
  Precisely formed corners ensure tight alignment with flange profiles, maintaining duct geometry and preventing deformation.

Advantages of HAVC Duct Flange Corner

• Improved Work Efficiency:
  Streamlined installation reduces on-site labor time and ensures uniform quality.

• Enhanced Air-Tightness:
  When used with gaskets and bolts, the corners help eliminate air leakage — improving system energy efficiency.

• Low Maintenance:
  Robust material and anti-corrosion finish minimize repair needs and extend system lifespan.

• Cost-Effective:
  Reliable performance and standardization help reduce replacement frequency and overall maintenance costs.

Application Scenarios & Solutions

1. Commercial Buildings (Shopping Malls, Offices, Hotels)

• Ensures tight and reliable duct connections to prevent air leakage in large-scale air conditioning systems.

• Maintains uniform air pressure and airflow across long duct runs, improving HVAC efficiency.

• Reduces maintenance frequency caused by loose or misaligned duct joints.

2. Industrial Facilities (Factories, Workshops, Warehouses)

• Provides high structural strength to support heavy or high-pressure air ducts.

• Withstands vibration and temperature fluctuations, ensuring long-term stability in harsh environments.

• Minimizes air loss and contamination, supporting energy efficiency and clean air management.

3. Public Infrastructure (Hospitals, Airports, Schools, Stations)

• Guarantees air-tight and hygienic ventilation, crucial for public health and comfort.

• Reduces installation time during large projects, improving overall construction efficiency.

• Enhances system reliability, reducing operational interruptions.

4. Residential and Real Estate Projects

• Provides secure and durable duct connections in compact HVAC systems.

• Prevents noise and vibration transmission from air ducts.

• Improves air distribution efficiency, reducing energy consumption.

5. Environmental Protection & Fire Safety Systems

• Ensures tight sealing for smoke exhaust and clean air systems.

• Withstands corrosion and temperature variations in special-purpose ducting.

• Enhances system safety by maintaining duct integrity under emergency conditions.

Our Advantages:

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.

T20 duct flange corner for HVAC systems 20mm Galvanized steel duct corner HVAC Duct Accessories packaging and Transportation:

Product Sales and After-Sales Service:

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.

Regarding Product Quality:

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!