| 摘要 |
A seal assembly for effecting a fluid tight seal between a pipe and an opening in the wall of a structure, particularly a relatively thin-walled structure made of a rigid plastic, fiberglass, or of metal, for example. The seal assembly generally includes a seal ring and an annular nut. The seal ring includes a relatively rigid fastener component having external threads, and a relatively resilient sealing component joined to the fastener component and including a first sealing projection for providing a compressive seal between the seal ring and one side of the structure wall, and a second annular sealing projection for providing a compressive seal between the seal ring and the outer surface of a pipe inserted through the seal ring. The seal ring is inserted through the opening in the structure, and the annular nut is threaded onto the external threads of the fastener component and into engagement with a first side of the wall to thereby compress the first sealing projection against the opposite, second side of the wall. Thereafter, a pipe is inserted through the seal ring to compress the second sealing projection between the outer surface of the pipe and the seal ring.
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