PRESSURE VESSEL AND METHOD AND DEVICE FOR SEALING A PRESSURE VESSEL

摘要

A seal assembly is provided to seal a pressure vessel and an adjacent enclosure. A metal support ring configured to contact a first sealing surface and a second sealing surface when installed in a pressure vessel, is provided with a low friction coating with transferable low friction additives which results in the transfer of a solid lubricant film onto the vessel wall enclosure. Two polymer seals are provided adjacent the metal support ring and the pressure vessel and enclosure respectively, the polymer seals having a configuration and being formed of a high resilience material, to increase the longevity of the seal assembly.