December 2011, Vol. 238 No. 12

Features

PE 100 Material Makes Manitoba Gas Main Project Economically Viable

Using pipe made from PE100 material to install a 29-km gas main provided Manitoba Hydro a C$200,000 advantage over the second-best alternative. In fact, the avoided cost was sufficient to render the expansion project economically feasible. PE 100 – ISO MRS/CRS. PE 100 is a bimodal polyethylene material that has been used in Europe and Asia for over 20 years. Key characteristics of PE 100 are a higher pressure rating for a given pipe wall thickness, and excellent resistance to both slow crack growth and rapid crack propagation. In Europe and Asia, an ISO pressure rating method is used that is based on testing pipe samples at three different temperatures with the linear log

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