PIPING METHOD FOR PIPING PROTECTION PIPE, STAINLESS STEEL SLIDER PIPE USED FOR IT, AND ITS MANUFACTURE

摘要

PROBLEM TO BE SOLVED: To absorb displacement applied on a pipe body, superior in durability and mass production despite of thin wall and light weight, and reduce the cost. ;SOLUTION: Angle displacement applied on a pipe path is absorbed by a bellows part of a stainless steel pipe and absorption of the axial displacement is absorbed by stainless steel slider pipes 10, 11. The stainless steel slider pipes are so formed that a ring expanded part 12 in the insertion tip side of an inner pipe 11 internally arranged between each of both tapered parts 10a, 10a of the outer pipe 10 of the stainless steel pipe abuts on both tapered parts 10a, 10a of the outer pipe 10 so that the stopping is performed at the time when an inner pipe 11 is in immersion and from slip off prevention in extending respectively. The inner pipe 11 provided with the expended part 12 for securing watertightness is formed in one end side of the stainless steel pipe, the expanded part 12 is inserted in the outer pipe 10, and the both sides of the outer pipe 10 are set to small-diameter pipe end parts 10b, 10c via the tapered parts 10a, 10b.;COPYRIGHT: (C)1997,JPO