Plastic Pipes Conference Association # 2023 Lake Buena Vista
Ajay Taraiya, Peter Degenhart, Mark Boerakker
In PPXX, a technology was presented for the first time that could bi-axially orient polyolefin pipes. With this technology, it is possible to prepare pipes that have a performance far beyond the standard ones. One approach to achieving this performance is via a continuous in-line process. To optimize the in-line technology and bring it to the market, a commercial scale pilot line was built. The pilot line made it possible to investigate the influence of process parameters, post processing conditions, and resin design on the performance envelope of these types of pipes. A detailed study of the properties of 32- and 63-mm outer diameter pipes with the former having a wall thickness between 1.9 to 3 mm and the latter having a wall thickness between 3.7 to 5.7 mm is presented in this paper. To investigate the performance of these pipes as part of a network, pipes were joined using different fittings to form a closed loop and submitted to cyclic thermal testing according to the EN12293:1999 norm. The resistance of joints between bi-axially oriented pipes, was evaluated by a pressure cycling (water hammer) test according to the EN12295:1999 norm. The result of these tests will be presented in this paper.
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