Weld Neck Flanges

The design of Weld Neck Flanges minimizes turbulence and erosion at the joint, making them ideal for use in pipelines where high fluid velocity is present. Their smooth bore and seamless integration with the pipe reduce pressure drop and maintain consistent flow, which is essential in petrochemical, oil & gas, power generation, and process industries. Because of their robust structure, Weld Neck Flanges are highly suitable for harsh environments and can withstand elevated pressure and temperature cycles for long operational life.

Another key advantage is their adaptability to a wide range of materials. Weld Neck Flanges are manufactured in Stainless Steel (304, 304L, 304H, 316, 316L, 310, 321, 347, etc.), Duplex and Super Duplex Steel (2205, 2507), Alloy Steels, Carbon Steel, Nickel Alloys (Inconel, Monel, Hastelloy), Titanium, Copper Nickel, Alloy 20, and SMO 254. This makes them versatile for applications ranging from corrosive chemical plants and offshore platforms to power plants and marine industries. Depending on the process requirement, they can be supplied in different classes, from ANSI/ASME Class 150 to Class 2500, covering both low-pressure and ultra-high-pressure systems.

At Neonox Overseas, Weld Neck Flanges are manufactured with precision engineering, adhering to international standards like ASTM, ASME, ANSI, DIN, EN, and BS. They are available in a wide range of sizes, dimensions, and pressure ratings, with both raised face (RF) and ring-type joint (RTJ) sealing options. Our Weld Neck Flanges undergo stringent quality checks including ultrasonic testing, hardness testing, PMI, and hydrostatic testing to ensure reliability.

These flanges are widely used in industries like oil & gas, petrochemical refineries, shipbuilding, marine, power generation, nuclear plants, water treatment, and construction. Their ability to handle cryogenic to high-temperature ranges makes them a superior choice for demanding engineering requirements. With our global supply chain, Neonox Overseas ensures timely delivery of Weld Neck Flanges in both standard and customized dimensions, meeting customer-specific requirements. Choosing Weld Neck Flanges from us guarantees durability, precision, and unmatched performance in any industrial environment.