Flange welded steel pipe refers to a type of pipe joint in which flanges are installed at both ends of the steel pipe and connected to the steel pipe through welding or other methods. Flange welded steel pipes are mainly used for transporting fluids such as oil, gas, and water, and are widely used in fields such as construction, chemical engineering, petroleum, and natural gas.
The welded methods of flange welded steel pipe
1. Butt welding: This is one of the most commonly used forms between steel pipes and flanges. By connecting the ends of steel pipes and flanges and filling them with melted metal to ensure the strength and sealing of the welding points, it is commonly used in high pressure, high temperature environments.
2. Threaded connection: This method connects steel pipes and flanges through threads, and the advantage is that the steel pipes will not be directly pulled out when disassembling the flanges. It is suitable for general temperature and pressure equipment, but not suitable for high pressure and high temperature environments.
