Case Study: The Multiple Failures of Phenolic Gaskets

A long-established midstream oil and gas operator had been experiencing long term issues with Phenolic isolation gaskets. They approached GPT seeking a solution that would give them longer service life at several compressor stations with differing pipeline sizes, ranging from 4” to 20”NPS.

The issues encountered came as no surprise to GPT, Phenolic insulation gaskets have been persistently plagued by several failure modes.
Namely: embrittlement, permeation, poor dielectric values, electrical bridging and cracking due to over torquing.

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