| 摘要 |
An insert (4) is provided for connecting standardized fittings (2) normally used for connecting standardized pipes with multilayer pipes (3). The insert (4) being slightly elastically deformable is adapted to be inserted into a fitting (2) and adapted to receive a pipe (3), wherein an outer circumferential face of the insert is substantially smooth for sealing between the fitting (2) and the insert (4) and an inner circumferential face of the insert (4) is provided with a sealing portion (4a, 4a1, 4a2) for sealing between the insert (4) and the pipe (3) and a holding portion (4d) for holding the pipe (3) in position. |
