The 3/4 Inch Weld Neck Flange (NPS 3/4″ | DN20) is a forged, high-performance designed for demanding piping systems operating under high pressure and temperature conditions. Featuring a long tapered hub, this flange is butt-welded to the pipe, ensuring smooth bore alignment and superior stress distribution. Its design significantly reduces turbulence and enhances structural strength, making it ideal for critical applications.

Manufactured in compliance with ASME B16.5, the 3/4″ Weld Neck Flange is available in pressure ratings ranging from Class 150 to Class 2500. It is produced in a wide range of materials including Stainless Steel (ASTM A182 F304, F316, F321, F347), Carbon Steel (ASTM A105, A350 LF2), Alloy Steel (F11, F22, F5, F9), Duplex & Super Duplex grades, and Nickel Alloys for enhanced corrosion resistance and durability.

The flange is commonly supplied with a Raised Face (RF), with optional Flat Face (FF) and Ring Type Joint (RTJ) configurations for high-pressure services. Each unit undergoes strict quality inspection and can be supplied with Mill Test Certification as per EN 10204 3.1.

It is widely used in oil & gas, petrochemical, power generation, marine, and chemical processing industries where reliability and long service life are essential.