| 摘要 |
The invention comprises a coupler used in pairs for joining the ends of two metal members such as pipes by welding. Each coupler has a slot with an external passage to act as a heat barrier to prevent the flow of heat from the welded connection between two couplers to a heat sensitive liner adjacent a surface opposite to that of the weld. The liner is locked into a rebate in the coupler and each coupler is positively aligned with the other. |
