Steel Flange 2 Inch, 3 Inch, 4 Inch, 5 Inch – Industrial Pipe Flanges for Reliable Piping Connections

✅ Steel flanges in 2-inch, 3-inch, 4-inch, and 5-inch sizes are widely used for connecting industrial valves, pumps, pressure vessels, and piping systems in water supply, wastewater treatment, oil & gas, steam, chemical processing, food production, and power generation industries. Their standardized design allows quick installation, easy maintenance, and reliable pipeline connections.

✅ The flanges are manufactured from high-quality carbon steel such as ASTM A105, SS400, or equivalent materials, providing excellent mechanical strength, pressure resistance, and durability. Surface finishes including electro-galvanizing, hot-dip galvanizing, or anti-rust coating enhance corrosion resistance and extend service life.

✅ Precision CNC machining ensures accurate dimensions, flat sealing surfaces, and properly aligned bolt holes according to international standards. This guarantees reliable sealing performance when installed with suitable flange gaskets.

✅ Steel flanges are available in various configurations including Slip On (SO), Welding Neck (WN), Blind Flange (BL), Socket Weld (SW), and Threaded Flange, meeting the installation requirements of different industrial piping systems.

✅ Standard sizes include 2 inch (DN50), 3 inch (DN80), 4 inch (DN100), and 5 inch (DN125), compatible with JIS 5K, JIS 10K, JIS 16K, ANSI Class 150, ANSI Class 300, DIN PN10, DIN PN16, and other international flange standards.

✅ Combining high strength, precise manufacturing, excellent pressure resistance, and cost-effective performance, 2-inch, 3-inch, 4-inch, and 5-inch steel flanges are an ideal choice for industrial plants, infrastructure projects, mechanical engineering, and modern piping systems.

Technical Specifications

✅ Product Name: Steel Flange

✅ Available Sizes: 2 Inch, 3 Inch, 4 Inch, 5 Inch

✅ Equivalent Sizes: DN50, DN80, DN100, DN125

✅ Material: Carbon Steel ASTM A105, SS400, or Equivalent

✅ Flange Types: Slip On (SO), Welding Neck (WN), Blind (BL), Socket Weld (SW), Threaded

✅ Flange Standards: JIS 5K, JIS 10K, JIS 16K, ANSI Class 150, ANSI Class 300, DIN PN10, DIN PN16

✅ Surface Finish: Electro-Galvanized, Hot-Dip Galvanized, or Anti-Rust Coated

✅ Facing Type: Raised Face (RF) or Flat Face (FF)

✅ Working Pressure: According to Flange Standard

✅ Suitable Media: Water, Steam, Oil, Gas, Chemicals, and Various Industrial Fluids

Applications

✅ Water Supply Systems

✅ Water Treatment Plants

✅ Wastewater Treatment Facilities

✅ Steam Systems

✅ Compressed Air Systems

✅ Oil & Gas Industry

✅ Chemical Processing Plants

✅ Food Processing Plants

✅ Pharmaceutical Manufacturing

✅ Power Plants

✅ Mechanical & Electrical (M&E) Projects

✅ Industrial Piping Systems

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