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Special-shaped flange

Summary:

Product Details

Special-shaped flanges are used as sealing and fastening connectors, also known as special-shaped flanges. It has a wide range of applications in large containers in aerospace, petroleum, chemical and other fields. Although the problem of processing capacity is not considered, for the special-shaped flange, due to its large size, only for transportation reasons, it is impossible to process the special-shaped flange as a whole, and it must be processed separately.
Usually, the special-shaped flange is always divided into several arc segments for processing. First, the blank is forged into a square billet, and then cold-formed into arc segments. After annealing and stress-relieving heat treatment, they are assembled into a complete circle and processed on a vertical lathe to the designed shape and size. Finally, they are transported to the construction site, and then several arc segments are assembled. Welded into a complete special-shaped flange and welded with the pressure vessel.
Special-shaped flange production and implementation standards: National Standard, American Standard, Japanese Standard, German Standard, Italian Standard, Ministry of Chemical Industry Standard, Ministry of Machinery Standard, Pressure Vessel Standard. Since the nominal diameter of the container cylinder of the special-shaped flange and the specific size represented by the nominal diameter of the pipe are different, the container flange and pipe flange of the same nominal diameter have different sizes, and the two cannot be used as substitutes for each other. The pressure grade, material and standard of special-shaped flanges have different characteristics and characteristics. They are used in accordance with certain principles, methods and methods in use, and can be produced and processed in accordance with corresponding standards to ensure good use value and effect. Special-shaped flange pressure rating: 0.6Mpa~32Mpa (150Lb~2500Lb) Special-shaped flange material: 201.202.301.302.303.304L.309S.310S, 316.316L.317.317L.321.410.420, etc. Special-shaped flanges are in use and production With different production standards, the production and use according to the corresponding standards can ensure the use value and function of special-shaped flanges in practice.

Special-shaped flange