Keyword: «weld strength»

This paper presents the research results on the technologies developed for welding polyethylene pipes, which allow welding at ambient temperatures below the standard ones without temporary heated shelters. Two types of welding were considered: with a heated tool butt (butt) and an embedded heating element (electrofusion). The results of short-term and long-term tests of welded butt and socket joints show the effectiveness of the proposed technologies for the operational welding of polyethylene pipes for gas pipelines at low ambient temperatures.