Welding neck flanges (WN flanges) are designed for high-pressure and high-temperature applications, offering a long tapered hub for smooth pipe transition and stress distribution. Shangdian Flange provides stainless steel WN flanges in ASME B16.5 and B16.47 standards, tailored to meet the rigorous demands of oil & gas, power generation, and refinery sectors. These flanges ensure a strong weld connection and are suitable for both standard and long neck configurations.