Raised Face Weld Neck Flange

The welding neck flange is a type of pipe fitting that has a neck and a round pipe transition. It is commonly used to join pipes by butt welding them together. The flange is welded to the pipe, creating a strong and secure connection.

Scope of application

The butt welding flange is widely utilized due to its ability to resist deformation, ensure a tight seal, and meet the requirements of rigidity and elasticity. Additionally, it features a reasonable thinning transition during butt welding. The weld crater is positioned at a significant distance from the joint surface, minimizing temperature-induced deformities. Its intricate horn-shaped structure makes it particularly suitable for pipelines experiencing substantial pressure or temperature fluctuations, as well as high and low temperature pipelines. Moreover, it is commonly employed for connecting pipelines and valves with a PN greater than 2.5MPa. Furthermore, it finds application in pipelines that transport costly, flammable, or explosive substances.

Product parameters

The diameter of the bolt hole center circle ranges from 50mm to 2130mm. Please note that the generated content is based on the original information but presented in a different manner.

(2) Bolt hole diameter: 11mm-30mm

(3) Flange thickness: 12mm-58mm

The outer diameter of pipes ranges from a minimum of 17.2mm to a maximum of 2032mm. Additionally, the pipe outer diameter can also be as small as 14mm and as large as 2020mm. These dimensions encompass a wide range of sizes for pipes.

The flange's inner diameter ranges from 18mm to 2036mm for option A and from 15mm to 2024mm for option B.

The flange's theoretical weight for DN1800 falls within the range of 0.36kg to 234.6kg.

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