| 摘要 |
A double wall compression fitting is dimensioned for attachment to a double wall pipeline system having an inner pipeline and an outer pipeline. The pipelines have a multiplicity of longitudinally running support fins running between them to maintain a spaced relationship. The fitting is comprised of an inner housing having at least two terminals, an outer housing encasing the inner housing in a manner to form an annular space therebetween and a compression connecting assembly. The compression connection assembly connects the inner and outer housings to the double wall pipeline system so that the annular space between the housings is in communication with an annular space between the pipelines of the double wall pipeline system. The compression connecting assembly includes a coupler with means to compress it to form a compression seal with the outer pipeline.
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