Hebei Haihao High Pressure Flange Pipe Fitting Group Co.,Ltd

Hebei Haihao Flange Factory

Hebei Haihao Flange Factory
  • Simple analysis of flange industry

    Simple analysis of flange industry

    With the development of flange industry, more and more new flanges have been become available. Also, flange has been applied to wider industry areas, such as the petrochemical industry, oil refining industry, nuclear power industry, thermal power industry and so on. Bigger industrial application ...

  • Large diameter flanges order from UAE

    Large diameter flanges order from UAE

    The large diameter flanges are used to connect or to block off two very large diameters sized pipes. A Large Diameter flange is a metal ring that is used to connect valves, pipes, pumps and other equipment that is necessary to form pipelines. The Large Diameter flange also allows people to have ...

  • Advantages of large flanges

    Advantages of large flanges

    Large flanges not only have different use values, effects and functions when used, but also have various materials, production processes and processing methods. Thus, we have to pay special attention to the methods of both processing and utilizing large flanges. Large caliber flat flanges used f ...

  • The introduction of figure-8 blank

    The introduction of figure-8 blank

    Figure-8 Blank (Spectacle blind) The Figure-8 Blank gets its name because it looks like an 8-character, also known as spectacle blind. Used to isolate or connect piping systems. The figure-8 blind is a steel plate with a fixed thickness divided into two discs. The two discs are connected by flat ...

  • What's the difference between butt welding and flat welding in stainless steel flanges?

    What’s the difference between butt welding and flat welding in stainless steel flanges?

    The difference between the flat welding and the butt welding of the stainless steel flange refers to the two welding methods when the flange is connected with the stainless steel pipe. The flat welding flange welds only one side, without welding the inner mouth of the welded stainless steel pipe ...

  • Sealing principle of flat welding flange

    Sealing principle of flat welding flange

    The two sealing faces of the bolt squeeze the flange gasket to form a seal, but this can also cause seal damage.In order to keep the seal,you have to maintain a large bolt force, in order to do this, you have to make the bolt larger. Larger bolts match larger nuts, which means larger bolt diamet ...

  • Connection application of flat welding flange

    Connection application of flat welding flange

    The smooth flat welding flange is the most widely used. The flat welded steel flange is suitable for the nominal pressure not exceeding 2.5MPa. The carbon steel pipe connection. The sealing surface of the flat welding flange can be made smooth. It is more suitable for medium conditions. In the c ...

  • What is the lap joint flange with welding neck collar?

    What is the lap joint flange with welding neck collar?

    Lap joint flanges can be mainly divided into four types: loose plate steel pipe flanges with weld-on collar, loose plate steel pipe flanges with welding neck collar, lap joint flanges with welding neck collar and lap joint flanges with welding neck collar. The roles of lap joint flanges: Lap joi ...

  • Common production process for flat welding flange

    Common production process for flat welding flange

    Common production process for flat welding flange: Round forging process of round steel pure material; Finished forging and cutting forming process; Steel plate cutting and blanking processing technology; Rough forging, expansion machine thermal expansion production process; Steel plate rolling ...

  • Rolling flange processing technology

    Rolling flange processing technology

    Rolling flange processing technology: The middle plate is first cut into suitable slivers, and the length of the sliver is determined according to the specifications of the large flange. Then, the ring is rolled into a circle, and the joint is welded firmly with the electrode. Then use the press ...

  • What is a rolled flange?

    What is a rolled flange?

    The rolled flange is cut into slats by the middle plate, and then rolled into a round welded joint and then processed by a flattening process. The coil is made up of cold and hot coils. After processing into a circle, the water line, bolt holes, and stops are processed. This is generally a large ...

  • Packing type of flange, pipe fitting and steel pipe

    Packing type of flange, pipe fitting and steel pipe

    We will pack the goods before they are shipped,packing plays an import role,can protect the product,easy to load and unload. Packing type of pipe fittings and flanges: We usually pack flange and pipe fitting in pallets or plywood cases.Less than 6 inches use plywood cases,more than 6 inches use ...