Equal pipe to pipe connector in aluminium alloy piping system is a type of pipe connection which is used to connect two aluminium alloy pipes of the same diameter. The main functions of this type of joint include connecting pipes, branching pipes, regulating flow, facilitating maintenance and saving materials. Specifically, equal pipe to pipe connector can ensure the continuity and integrity of the piping system, so that the medium can flow smoothly; at the same time, it can also divide a pipe into two or more pipes to form branch pipes to meet different process requirements; in addition, equal pipe to pipe connector can be easily disassembled and replaced, so that the maintenance of the pipe is more convenient and quick, and also can save the material cost. Therefore, equal pipe to pipe connector has a very important role in aluminium alloy piping system.