The commercial Light Water Reactors operating within the United States have been in service from about 20 to 35 years. These plants include buried Service Water piping systems primarily made from low carbon steel. This piping has been subject to aging over the years, resulting in degradation and corrosion that will require replacement of the piping. Due to the advantageous cost and durability of High Density Polyethylene (HDPE) piping (as demonstrated in other commercial industries), the industry has expressed interest in replacing steel buried Service Water Piping in Nuclear Power Stations with HDPE piping. To assist in this effort EPRI has funded and supported the work summarized in this paper to develop design criteria for HPDE Pipe. This paper provides an example problem demonstrating the application of recently developed design criteria for HDPE piping. The technical bases of these criteria are presented in separate papers and are not repeated in this discussion.

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