Stainless Steel Forged Weld Neck Flanges | WNRF Flanges

Weld Neck Flange

A weld neck flange, also known as a tapered hub flange or high-hub flange, is a type of gasket that may shift pressure to the piping, resulting in a reduction in heavy proportion at the flange's bottom. 

There are two types of weld neck flanges: the first is used with sweeps, while the second, longer kind is utilized with process units rather than piping. The weld neck flange is made up of a spherical connection that goes further than the circumference's rim. Such flanges, which are normally made of forging, are soldered to pipes.

The ring is machined with several holes to allow the flange to be fastened to a bolt gasket. Because of the architectural valve, this design is significantly superior.

Our Weld Neck Flanges have a long tapering shaft that gradually extends across the barriers breadth from the pipe or fittings. The extended tapering center serves as a vital strengthening in a wide range of applications requiring extreme pressures, sub-zero, and/or increased temperature. 

The flange is grooved to complement the internal surface of the connecting pipe or connection, ensuring that fluid circulation is not restricted. This prevents joint disruption and reduces disintegration. We also provide fantastic pressure transference via the constricted center and are properly checked for defects, if any exist.


Dimension standard for our weld neck flange included: ASME B16.5, ASME B16.47, MSS-SP – 44 (ANSI Standard), DIN EN 1092/1 Type 11


The piping material specification of weld neck flanges includes:

  • Flanges Minimum Pipe Size

  • Flange Dimensions

  • The width of the weld end of this flange must be the same as the diameter of the connected pipe.

  • Measurement criteria apply, such as ASME B16.5. Construction Material A105 and A181 for carbon steel, A182 for stainless steel, and A350 for low-temperature services are examples.


At Shacha Technoforge, our products and operations are certified by every national and international certification such as ISO 9001:2015 and CE. Our forged weld neck flanges are the best in class flange solution that serves applications where higher pressure of up to 5000 psi is expected. Our weld neck flange is perfect for high temperature, flammable and toxic application as well.

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