Socket and spigot type pipeline hydraulic test method

The invention belongs to the technical field of pipeline sealing and particularly provides a socket and spigot type pipeline hydraulic test method. The problems that in the prior art, test seal rings cannot be recycled, the rotation characteristic of flexible joints is lost, and the resources are wasted are solved. In order to achieve the purpose, the socket and spigot type pipeline hydraulic test method is provided by the invention. The method includes the steps that a socket pipeline and a spigot pipeline are provided, and the socket pipeline comprises a first section and a second section; then the end of the spigot pipeline is pushed into the range of the first section; a test seal part is mounted at the end of the spigot pipeline; then the spigot pipeline is joined with the second section and an annular cavity is formed between the spigot pipeline and the first section; and finally, liquid is injected into the annular cavity and the sealing effect of a socket and spigot type pipeline is detected. By means