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A Welding Neck Flange is a type of flange characterized by a long, tapered neck that is welded to the pipe, creating a strong, permanent connection. This flange design is ideal for high-pressure systems where strength and reliability are critical. The weld neck ensures a smooth transition from the pipe to the flange, reducing the risk of stress concentration and making it ideal for demanding applications.
Typically manufactured from high-quality materials such as carbon steel, stainless steel, and alloy steels, welding neck flanges are designed to withstand high pressure, high temperature, and harsh corrosive environments. Their strong construction and ability to handle extreme conditions make them suitable for industries such as oil & gas, chemical processing, power generation, and shipbuilding.
Welding neck flanges are available in a wide range of sizes and pressure ratings, making them adaptable to a variety of piping systems. The integral weld neck provides a robust, leak-proof connection, ensuring the integrity of the system. They are commonly used for critical applications where safety and performance are paramount, ensuring long-lasting, secure connections in high-stress environments.
| Specification | Details |
|---|---|
| Product | Pipe Fitting Welding Neck Flange |
| Size Range | 1/2" to 24" (DN15 to DN600) – Custom sizes available |
| Types |
Welding Neck Flange: A flange with a long, tapered neck designed to be welded
directly to the pipe for strong, permanent connections. Long Weld Neck Flange: A longer version with an extended neck for higher-pressure and high-temperature applications. |
| Wall Thickness | Sch 10, Sch 20, Sch 40, Sch 80, Sch 160 (As per ASME/ANSI standards) |
| Standards | ASME B16.5, ASME B16.47, ISO 7005, EN 1092-1, JIS B2220 |
| Material Grades |
Carbon Steel: ASTM A105, A350 LF2 Stainless Steel: 304, 304L, 316, 316L Alloy Steel: ASTM A182 F11, F22 Nickel Alloys: Inconel, Monel, Hastelloy Other Materials: Brass, Copper, Aluminum |
| Manufacturing Process | Forged, Cast, Machined |
| Ends | Weld Neck (Tapered for welding directly to the pipe) |
| Surface Finish | Black, Pickled, Sand Blasted, Polished, Anti-Rust Coated |
| Testing & Certification | Hydrostatic Test, Non-Destructive Testing (NDT), PMI Test, Third-Party Inspection |
| Applications | Oil & Gas, Power Generation, Petrochemical, Chemical Processing, Water Treatment, Shipbuilding, Marine |
| Special Features | High Strength, Leak-Proof Connection, Excellent Pressure Resistance, Easy to Weld, Long-lasting Performance |
| Welding Neck Flange Design Features |
Strong & Reliable Connection: The tapered neck design ensures a smooth
transition and reduces stress concentrations, providing superior strength. Ideal for High-Pressure Systems: Welding neck flanges are ideal for high-pressure, high-temperature, and critical applications. Corrosion Resistance: Available in corrosion-resistant materials such as stainless steel, ensuring longevity in harsh environments. Customizable Sizes: Available in a wide range of sizes and pressure ratings to meet specific application needs. |
Our Welding Neck Flanges offer high-strength connections, superior durability, and excellent pressure resistance, making them the ideal choice for critical piping systems that require reliable, leak-proof joints.
Welding neck flanges are designed with a long, tapered neck, ensuring high strength and a stress-free connection to withstand high-pressure applications.
The tapered neck design of welding neck flanges makes them easy to weld directly to pipes, creating a smooth transition and minimizing stress on the joint.
Crafted from high-quality materials such as carbon steel, stainless steel, and alloys, welding neck flanges provide exceptional corrosion resistance and long-term durability in harsh environments.
Manufactured to meet international standards like ASME B16.5, ISO 7005, and JIS B2220, ensuring consistent quality and compatibility in critical piping systems.
Welding neck flanges are ideal for high-pressure, high-temperature applications in industries such as oil & gas, power generation, chemical processing, and water treatment.
Welding neck flanges provide leak-proof connections due to their smooth, strong welds, making them highly reliable in high-pressure systems.