Flange de-rusting method: immerse the flange in hydrochloric acid, the principle is to reduce the rust to iron, but there are dangers in this method. Hydrochloric acid is a corrosive substance, which is harmful to human body. During operation, pay attention not to touch the human body, and neutr ...

Flange sealing surface includes full face FF, raised face RF, raised face m, concave face FM, tenon face t, groove face g and ring connection face RJ. Generally, the concave convex surface MF, the tenon groove surface TG and the ring connecting surface RJ are used in pairs. Ring groove surface s ...

Stainless steel flanges are mainly made of two kinds of flat welding flange and butt welding flange, each with rings and rings. When flange dimensions are used to determine flange dimensions, the nominal diameter and nominal pressure of the flange must be known. The nominal diameter of the flang ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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: 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 ...