Introduction to the quality process and characteristic uses of large diameter flanges
Release Time:
Jun 01,2023
Large-diameter flange is a flange that has been widely used and promoted in the machinery industry, and has been well received and favored by users. Large-diameter flanges have a wide range of applications, and their application ranges are determined according to different characteristics.
Large-diameter flange is a flange that has been widely used and promoted in the machinery industry, and has been well received and favored by users. Large-diameter flanges have a wide range of applications, and their application ranges are determined according to different characteristics. It is mainly used in medium medium conditions, such as low-pressure unpurified compressed air and low-pressure circulating water. Its advantage is that the price is relatively low. Rolling flanges are suitable for steel pipe connections with nominal pressures less than 2.5MPa. The sealing surface of the rolled flange can be made smooth, and the smooth rolled flange is the most widely used. The other two methods of rolling flanges are also commonly used.
The large-diameter flange is cut into strips with a medium plate, and then rolled into a circle, and then processed with water pipes, bolt holes, etc. This is usually a large flange, the largest can reach 7 meters. The raw material is medium density board. Large-diameter flange materials are carbon steel, stainless steel, alloy steel, etc.
The manufacturing characteristics and uses of large diameter flanges are mainly shown in the above positions. If large diameter flanges are used, we all need to understand these characteristics.
There are three types of sealing surfaces for large-diameter flanges: flat sealing surfaces, suitable for low-pressure and non-toxic media; concave-convex sealing surfaces, suitable for higher pressure applications; mortise sealing surfaces, suitable for flammable, explosive, toxic medium and high pressure applications. What is the quality process of large diameter flanges?
The quality process of large diameter flanges is as follows:
Large diameter flanges Using different technologies to produce large flanges has its advantages and disadvantages. For large-diameter flanges made of medium plates, the treatment of the joint position is the most critical. If the position is not welded properly, leakage will occur. For forged large-diameter flanges, there will be a layer of skin after the finished flange comes out. If the bolt hole is right where the layer skin is, it will leak when pressed.
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