| 摘要 |
<p>PURPOSE: To obtain a sealing core for a pipe coupling which can seal the end part of a water supply pipe, in correspondence with the difference of the thickness of a dustproof covering formed on the inner peripheral surface of the connected water supply pipe. CONSTITUTION: A sealing core for a pipe coupling has a fitting pipe part 10 inserted into a connected pipe P and a flexible arnular close attachment pipe 11 which has a fiange part 12 which makes contact with the end surface P1 of the connected pipe and is formed integrally by a synthetic resin member and is continuous in the circumferential direction on the outer peripheral surface of a fitted pipe part.</p> |
