Category

Round Angle Iron Flange / Galvanized Circular Duct Flange / Punched Round Flange

Galvanized circular duct angle steel flange, pre-punched holes, durable anti-corrosion HVAC duct connector.

Galvanized round angle iron punching flange for circular HVAC ventilation ducts. Anti-rust, high rigidity, pre-punched holes, easy installation, custom size available.

Product Description

The Round Angle Iron Flange is specifically designed for circular HVAC duct systems, providing a strong, stable, and airtight connection between spiral or round ducts. Made from high-quality galvanized steel, this flange ensures excellent corrosion resistance and long-term durability in various ventilation environments.

The flange is manufactured with precision-punched bolt holes for accurate alignment and fast installation. It is widely used in HVAC, air conditioning, and industrial ventilation systems.

Key Features

  • Robust Construction: Made of high-strength galvanized angle steel for enhanced rigidity
  • Corrosion Resistance: Zinc coating protects against rust and harsh environments
  • Precision Punched Holes: Ensures easy alignment and secure bolted connection
  • Wide Size Range: Available from Ø100mm to Ø2000mm (custom sizes supported)
  • Flexible Thickness Options: Typically 2–5mm depending on diameter
  • Customizable: Hole quantity, diameter, thickness, and dimensions can be tailored

Applications

  • Spiral duct systems
  • Round HVAC air ducts
  • Ventilation and exhaust systems
  • Industrial air handling systems

Specifications

  • Material: Galvanized Steel (GI)
  • Type: Round / Circular Flange
  • Diameter Range: Ø100mm – Ø2000mm
  • Thickness: 2mm – 5mm
  • Hole Type: Punched bolt holes
  • Connection Method: Bolted flange connection
  • Surface Treatment: Pre-galvanized or hot-dip galvanized

Keywords

  • Round Duct Flange
  • Circular Flange
  • Angle Iron Flange
  • GI Flange
  • Spiral Duct Flange
  • HVAC Flange System
  • Punched Flange Ring

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