CHALLENGING THE 10% WALL THICKNESS RULE FOR HDPE MARINE PIPELINES

November 29, 2022 by admin in Uncategorized

Ilija Radeljic, Ebbe Smith

# 2021 Amsterdam

HDPE pipe can be relatively easily scratched during the manipulation on the site, which is especially true for the marine pipelines. Installing the scratched marine pipe with the S bend method presents a risk and repair methods are usually performed. Currently, there is no standard defining the repair procedure, in particular, the shape, angle and other geometric properties on marine pipelines. The only industry guideline is the maximum allowable surface damage depth of 10% of the wall thickness valid for the solid wall pipes, based on on-land pressure applications and small dimensions. This paper examines the effect of different surface damage depths and various options for smoothening the wall surface with different geometry and suggesting the optimum for practical on-site repair.

https://www.pe100plus.com/PPCA/CHALLENGING-THE-10-WALL-THICKNESS-RULE-FOR-HDPE-MARINE-PIPELINES-p1748.html