News
Procedure to determine the safety factor of polyethylene pipes under complex Ioad
Looking for safety and illustrates how the safety distance is represented in various fields, including polyethylene pipes, in the double logarithmic time-dependent internal pressure diagram.
Erwiderung zur Publikation: "Langsames Risswachstum von Polyethylen - Mythos und Wirklichkeit"
The response to the publication "Slow Crack Growth of Polyethylene – Myth and Reality" criticizes the inadequate reproducibility of tests. The authors highlight significant differences in stress crack behavior and recommend using samples from the same batch for the Full Notch Creep Test (FNCT).
Erwiderung zur Publikation: „Langsames Risswachstum von Polyethylen — Mythos und Wirklichkeit" (DE)pdf | 185,13 KB- Überprüfung der Aussagen zur Reproduzierbarkeit des FNCT in Publikation Grosse-Boes (Borealis) und Kloth (Sabic Polyolefine) in 3R international (43) Heft 4-5/2004: „Das langsame Rißwachstum von Polyethylen — Mythos und Wirklichkeit" (DE)pdf | 187,58 KB
8th Wiesbadener Kunststoffrohrtage (Wiesbaden Plastic Pipe Days)
During the 8th Wiesbadener Kunststoffrohrtage (Wiesbaden Plastic Pipe Days), Dr. J. Hessel presented his lecture on the current findings regarding trenchless installation of PE pipes, with a particular focus on sandless techniques. This event served as a platform for knowledge exchange in plastic pipe engineering.
Plastics Pipes XII Conference, Mailand, Italien
During the Plastics Pipes XII Conference in Milan, Dr. J. Hessel, along with A. Lueghamer and M. Tsunaga, presented a lecture on welding techniques and the long-term behavior of thick-walled polyolefin large pipes. The results demonstrated the superiority of polyolefin pipes in water distribution systems.
Machine developments, process-engineering, pipe design and materials requirements - Polyethylene pipes for trenchless installation methods
Trenchless installation techniques using polyethylene pipes have proven successful for over 30 years. With modern machinery, tailored pipe designs, and rigorous quality control, a lifespan of over 100 years is anticipated for gas and water pipelines, even with complex methods like bursting gray cast iron pipes.