JOINT STRUCTURE FOR PIPE BODY AND ANNULAR SEAL MEMBER

摘要

PROBLEM TO BE SOLVED: To surely prevent a leak of fluid from a joint part, even in case of causing center deviation in a pipe body. SOLUTION: In a joint structure for a pipe body formed by sealing a joint part P of a pair of pipe bodies 1, 2 by a side surface 13 of an annular seal member 4, an annular wall 16 protruded from the side surface 13 is formed over the total periphery in the side surface 13 of the annular seal member 4. The annular wall 16 is formed in thin thickness toward the tip end, and an angleαformed by an outer peripheral surface and the side surface 13 is formed larger than an angleβformed by an internal peripheral surface and the side surface 13.