| 摘要 |
<p>PURPOSE: To provide a pipe coupling part sealing device which can prevent the failure of a repair tube accompanying the failures of a bolt and a nut so that its aseismic performance can be improved. CONSTITUTION: A pipe coupling part outside surface sealing device is built up in such a manner that the circumference of pipe coupling parts connected to each other by mutually tightening a flange 1a and a flange part 2b by a connecting bolt 3 and a nut 7 so as to sandwich seal materials 4, 5, 6 therebetween is coated with a repair tube 9 through a mastic member 8, and the mastic member 8 is formed in a ring shape whose cross section forms approximately U-shape having predetermined width, and which surrounds the connecting bolt 3 and the nut 7 together with the outer circumference of the flange 1a and the flange part 2b.</p> |
