Factory ANSI / GOST Standard Weld Neck Flange

Factory ANSI / GOST Standard Weld Neck Flange – High-Quality Flanges by SSM

SSM is a leading manufacturer and supplier of ANSI / GOST Standard Weld Neck Flanges, offering high-quality solutions for carbon steel, stainless steel, and alloy steel piping systems. With over 30 years of experience, SSM delivers flanges that meet international standards and ensure leak-proof, reliable connections for critical industrial applications.

What is a Weld Neck Flange?

A Weld Neck (WN) Flange is designed with a long tapered hub that gradually transitions to the pipe, providing excellent stress distribution at the welded joint. This makes WN flanges ideal for high-pressure and high-temperature piping systems.

Key features of SSM's Weld Neck Flanges include:

Compliance with ANSI B16.5 and GOST 12820-80 / 12821-80 standards

Pressure classes from 150# to 2500#

Sizes ranging from ½" to 48" (DN15–DN1200)

Materials: Carbon Steel (A105, Q235), Stainless Steel (SS304, SS316L, SS321), Alloy Steel

Surface finish options: RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)

Applications

SSM's ANSI / GOST Weld Neck Flanges are widely used in:

Oil and gas pipelines

Petrochemical plants

Power generation and water treatment systems

Offshore and marine installations

Industrial process piping

Why Choose SSM?

30+ years of expertise in flange manufacturing

Advanced forging and machining equipment for precision flanges

Certified by ISO, PED, and TS, ensuring high-quality products

Custom solutions available for special sizes, pressure classes, or materials

Fast global delivery and competitive pricing

Conclusion

For reliable and high-quality Factory ANSI / GOST Standard Weld Neck Flanges, SSM is your trusted partner. Our flanges are designed to deliver durability, precise fit, and excellent performance in demanding industrial applications.

📞 Contact SSM today for technical support or a detailed quotation for your project requirements.

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