The element of coating and coating process of pipelines service

摘要

The element of coating and coating process of pipelines in service. The present invention relates to a coating element (1) of polyolefin capable of covering, protecting and isolating service ducts (2) curved or straight.Such a coating element (1) is provided with a first end groove (4a) configured to engage at least a portion externally and tangentially extreme of a first element of coating adjacent to the coating element (1),Where the first end groove (4a) of the coating element (1) and the so-called extreme portion of said first element of coating adjacent are welded together by electrofusion. The said first element of the adjacent coating can be curved or straight. In a first preferred implementation of the invention, the coating element (1) comprises a male end (5).In a second preferred implementation of the invention, the coating element (1) comprises a second end groove (4b). The present invention also refers to a process for the coating of pipelines in service (2) curved or straight.