| 摘要 |
A sealing construction for the interconnection of two pipes in a vacuum connection, comprises, end flanges of the pipes which have conical sealing surfaces and including a substantially C-shape metallic ring disposed between the flanges which has at least a portion of its surface in rolling and sealing engagement with the conical surfaces of the flanges. The construction may also be used between a valve member which includes a plate having a conical sealing surface which is adapted to be sealed with a valve seal of a similar conical surface. The sealing ring may be used between conical surfaces which are substantially parallel or between those which converge or diverge with the use of an additional backing ring and, preferably, also with a centering ring.
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