| 摘要 |
A corrosion resistant coupling assembly for two glass-lined, premium threaded pipe joints, the coupling assembly having opposed liner end wedge flanges that engage and trap a compressible, reinforced polymeric ring disposed between them, wherein the compressible ring has a wedge-shaped cross-section with oppositely facing, oppositely inclined side surfaces, so that each oppositely inclined side surface contacts and abuts against an oppositely disposed, cooperatively inclined surface of a liner end wedge flange to provide a corrosion-resistant barrier between the two pipe joints when the pin end and the box end are threadedly engaged and tightened to compress the polymeric ring.
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