A joint pipe is a connection tool between a pipe and a pipe, and a connection point between a component and a pipe that can be disassembled and assembled.It plays an indispensable and important role in pipe fittings, and it is one of the two main components of hydraulic pipelines.Pipe joints are used for linear connections such as instruments, and the connection forms are socket welding or threaded connection.It is mainly used for small-caliber low-pressure pipelines, for parts that need to be assembled and disassembled frequently, or for the final adjustment of pipelines using threaded pipe fittings.The structural form should adopt a metal surface contact sealing structure. The structural form of gasket sealing is usually used in general pipelines such as conveying water, oil, and air, and is made of malleable cast iron.In addition, usage requirements and prices are also factors to consider when choosing.