Butt welding flange refers to a flange with a neck and a circular pipe transition, which is connected to the pipe by butt welding. Butt welded flanges are not easily deformed, have good sealing, and are widely used. In butt welded flange pipeline engineering, butt welded flanges are mainly used for pipeline connections. Low pressure pipelines can use threaded flanges, and welding flanges are required for pressures exceeding 4 kilograms.
Butt welding flanges are often used in environments with relatively mild medium conditions, such as low-pressure non purified compressed air and low-pressure circulating water. Its advantage lies in its relatively cheap price. The sealing surface of butt welded flanges can be divided into three types: smooth, concave convex, and tenon groove. The application range of smooth butt welding flanges is very wide, and the other two methods of butt welding flanges are also quite common in use.
The welded flange has a reasonable structure, high strength and stiffness, and can withstand various harsh environments such as high temperature and pressure, repeated bending, and temperature fluctuations, without compromising sealing performance. Butt welding flanges have a wide range of uses, mainly in these areas. We should all operate and use them in the correct way.