| 摘要 |
<p>PURPOSE:To provide a safety pipe coupling with loose flange wherein the coupling is limited to move in an axial direction though it is rotatable about the axis. CONSTITUTION:In a loose flange-provided pipe coupling, a flange-shaped point end flare part 3 is formed in the end of a lining pipe 1 to which a loose flange 4 is fitted with a play, and a bead part 2, which holds the loose flange 4 rotatably about the axis between the bead part and the point end flare part 3, is formed.</p> |
