JOINT FOR PIPING, PRESSURE PROOF TEST UNIT, PIPE CONNECTING STRUCTURE AND PIPE CONNECTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a joint for piping using the anaerobic adhesive and having superior sealability, reliability and workability, a pressure proof test unit, a connecting structure of a pipe, and a connecting method. SOLUTION: This joint for piping used in connecting pipes by the anaerobic adhesive has a double pipe structure formed by integrating an inner pipe fitted to an inner peripheral side of a pipe end part and an outer pipe fitted to an outer peripheral side through a gap, and at least one of the inner pipe and the outer pipe has a taper face approaching toward the other.