A Review of Manufacturing Process of Polyethylene Pipe and Connectors for Applying in High-Pressure Natural Gas Pipelines

Document Type : Review Article


1 Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran

2 Research and Development Unit, Isfahan Gas Company, Isfahan, Iran

3 Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran

4 Polymer Science and Technology Division, Research Institute of Petroleum Industry (RIPI), Tehran, 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.