Omid Moini Jazani - Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
Reyhaneh Khalafi - Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
Mohammad Khosravi - Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
Mohammad Reza Hassanpour - Research and Development Unit, Isfahan Gas Company, Isfahan, Iran

In this article various pipes used for transporting of gas are introduced and pros and cons of each one are elucidated. The pipes are categorized in three different subgroups including metallic, polymeric and metallic-wire reinforced polymeric pipes. Metallic- wire reinforced polymeric pipes are nominated as the best option for usage in high pressure pipelines transporting natural gas. As a result, some information about major manufacturers of this kind of polymeric pipes, raw material, production process and metallic-wire orientation are presented. Finally, from economical point of view, some calculations are done to estimate required amount of polymer and metallic-wire to manufacture such pipes. It is also possible to compare their manufacturing cost with usual metallic and polymeric pipes.

Pipes,High-pressure natural gas pipelines,Metallic-wire reinforced polymeric,pipes