The basic concept of stainless steel union

Union, also known as union or free, is a common pipe connection that can be easily installed and disassembled. It mainly consists of three parts: nut, cloud head and flat connection. The pipe joints are machined after die forging of round steel or steel ingots. Its connection forms are socket welding and threaded connection. Socket welding is to insert the steel pipe into the socket for welding. Therefore, it is called "socket and socket". Union ", threaded connection is to screw the steel pipe into the threaded hole for connection, therefore, it is called "threaded union", the main manufacturing standards are ASME B16.11, MSS SP 83.