Rubber Sealed Key Lock Joint

Joint connection made up of a spigot end and a socket end with “O” or lip-sealing rings and some axial restraining device capable of resisting the full thrust from internal pressure.

Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. Global Standards

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