The WNR400 SEALFAST SEALFAST SEALFAST is a 4" weld neck raised face flange rated for 150# pressure. This flange is constructed from high-grade materials, ensuring durability and resistance to corrosion in demanding environments. Its raised face design enhances sealing capabilities, making it ideal for high-pressure piping applications. Complying with ANSI standards, the WNR400 is compatible with a variety of piping systems, providing versatility for engineers and contractors. This flange is a reliable choice for those seeking high-performance solutions.