The Butt Welding Olet is a commonly used connection fitting in industrial production. Its main function is to fix the welded pipe and the bracket to ensure the stability and safety of the pipe. The Butt Welding Olet is mainly used as a reinforced pipe fitting for branch pipe connection, replacing the branch pipe connection types such as reducing tees, reinforcement plates, and reinforced pipe sections. It has outstanding advantages such as safety and reliability, reduced cost, simple construction, improved medium flow channel, series standardization, and convenient design and selection. It is increasingly widely used in high-pressure, high-temperature, large-diameter, and thick-walled pipelines, replacing the traditional branch pipe connection method.