Stainless steel union introduction

The stainless steel union (also called 壬 or 任任) is a common pipe connection that can be easily installed and disassembled. There are mainly three parts: nut, cloud head and flat. Pipe joints machined by round steel or steel ingots, the connection form is divided into socket welding and threaded connection. The socket welding is to insert the steel pipe into the socket to weld. Therefore, it is called “socketing”. "Joint joint", the threaded connection is to screw the steel pipe into the screw hole for connection, therefore, it is called "thread joint", the main manufacturing standards are ASME B16.11, MSS SP83.