| 摘要 |
A guided expansion joint (1) for fluidically connecting two pipes (2,3) in sealed relationship includes low friction annular guides (11,12) at each end of the expansion joint (1) intermediate the slip (4) and the external sleeve (5). A conventional stuffing box (18) provides the seal between the external sleeve (5) and slip (4) while the annular guides (11,12) protect the slip (4) against wear and scoring in the event that the slip (4) and external sleeve (5) depart from the preferred aligned relationship.
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