| 摘要 |
<p>The invention relates to a coupling for plastic pipes (15), which comprises a nipple (12) to be pushed into the plastic pipe and having outside annular ridges (14), and clamping means comprising lock ring (16) which can be pushed axially over the plastic pipe on the nipple for compressing the material of the plastic pipe, said pipe being pressed against the nipple. The coefficient of linear heat expansion of the material of the lock ring (16) is greater than that of the material of the nipple (12).</p> |
