JOINT INCLUDING CONNECTION SURFACE AND PIPING STRUCTURE INCLUDING SAME

摘要

An object of the present invention is to not store contamination in a pipe including a pipe joint constituting piping and a joint including a connection surface. The joint is inserted into an end portion of the pipe constituting the piping. A connection hole of the joint and an inner surface of the end portion of the pipe are welded with each other. The pipe includes the joint having a structure in which an outer circumference of the pipe and the joint are welded with each other. The joint includes the connection surface that is a main body which includes the connection surface connectable to the joint of the pipe. Using the pipe and the joint, the piping is formed by a bolt connection of the joint of the pipe with the connection surface of the joint, thus configuring piping with a smooth inner surface having no gap or recess.