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2018 Las-Vegas : A new flexible jointing method of plastic (PE) pipesAuthor(s) : Yilaing He, Tianjun Zhang
A new electrofusion PE belt is developed by reinforcing it with various layers of steel mesh. It’s of sandwich structure, consisting of steel mesh reinforcement, heating wire and polyethylene. One or more layers of steel mesh is encapsulated in the middle, and heating wire is embedded onto “inner side” of the belt....
2018 Las-Vegas : Discover: plasticsAuthor(s) : Davidovski Zoran
To get a deeper insight in why plastic pipes systems in some cases are deselected by designers, installers and users, European Plastics Pipes and Fittings Association (TEPPFA) initiated a research including interviews in four pilot countries: Poland, France, Germany and the UK. The first phase was concentrating on...
2018 Las-Vegas : Innovations in production of corrugated pipesAuthor(s) : J. Vlachopoulos, M. A. Lupke
A very tight-fitting bell-and-spigot inline coupler, minimizing the gap between connecting pipe segments, and a space efficient pulsating corrugator, requiring just three mold block pairs, were developed.
The author of a recent article in New York Times [1] claims that some 300 Billion dollars are needed to repair the...
2018 Las-Vegas : The use of temperature, lubrication, and supplied hydraulic pressure in the production of oriented PVC pipeAuthor(s) : Jie Feng, Michael Petr, Jeff Wenzel, Mark Mirgon, Sam Crabtree, Alan Nakatani
Through tensile tests, simulated orientation, tribology, and finite element analysis, this study explored the effect of temperature, lubrication and applied hydraulic pressure in the PVC orientation process. It was demonstrated that tight control of these parameters is critical in a continuous PVC orientation process...
2016 Berlin : Asset management of polyethylene gas networksAuthor(s) : Ian Aldridge, Declan Robinson, Dave Smart, Chris Reed, Martyn, Greig, Trevor Stafford, David Christie-Lowe, Alec Erskine
For the UK polyethylene (PE) gas pipe network, the first installations now exceed 40 years in the ground, with an original design life of 50 years. It was thus timely to review the current condition and performance history of these first generation PE materials. A major 4 year project was started in 2010 to examine...
2016 Berlin : Big data, big differenceAuthor(s) : Nick Mark, Eric Bridgstock, David Carey
An insight into a unique approach to the management of electrofusion and butt fusion joint quality on polyethylene pipelines. The presentation will reference experience and learnings from a system that has already been used in the field to great effect (see Abstract) and a new approach to butt fusion (see enclosed...
2016 Berlin : Digital radiography of PE jointsAuthor(s) : Mats Bergman, Karin Jacobson
The Swedish Water & Wastewater Association (SWWA) has funded a R&D project to investigate different methods suitable for installation inspection of PE joints in field. Methods like phased array ultrasonic testing (PAUT), microwave technology and digital radiography were studied. Digital radiography shows promising...
2016 Berlin : Fiber reinforced large diameter polyethylene pipeAuthor(s) : Shi Jingdong, Tan Gangqiang
FIBER REINFORCED LARGE DIAMETER POLYETHYLENE PIPE (GRPE) consists of fiberglass as the middle layer, and HDPE as inner and outer layers to provide required strength and stiffness. This composite pipe is made by spirally winding under hot melt condition, pipe pressure ranges is from 0.8 to 1.6 MPa. The fiber reinforced...
2016 Berlin : Long-term behavior of glass fiber reinforced polyethyleneAuthor(s) : Mitsuaki Tokiyoshi, Philippe Vanspeybroeck, Kensei Inoue, Stephan Fullgrabe, Takashi Kuriyama, Toshinori Kawabata, Joji Hinobayashi
Big diameter polyethylene pipes used an important role due to superior performance (Flexibility, light weight, long lifetime and tighten joint) for water and industrial supply to several countries. However according to standard concerned Polyethylene pipes as like ISO4427 we are being used solid wall pipe with too...
2016 Berlin : Main drivers and barriers for plastic pipes in EuropeAuthor(s) : Davidovski Zoran,
The European Plastics Pipes and Fittings Association (TEPPFA) and it Application Group Civils working group initiated a new project at the beginning of 2015, to find a way of improving the communication and promotion of TEPPFA and its projects to the industry. This project was divided into the two phases with the...
2016 Berlin : Quality control testing of joints in gravity flow plastic pipesAuthor(s) : David Becerril García, Jacinto Cortés-Pérez, Ian D. Moore
Joint performance of joints in gravity flow buried pipelines is very important since joint failure could produce structural or service limits to the system. Standards have been developed to evaluate that joints have the necessary structural and leakage capacities which specify test methods that are not clear and do...
2016 Berlin : Residual quality of excavated UPVC gas and water distribution pipelinesAuthor(s) : Frans Scholten, Ernst van der Stok, Britta Gerets, Mirko Wenzel, Mike Boege
The current condition of 35-50 years old uPVC main (110 mm) and service (32 mm) pipes for gas and water distribution was assessed. From 27 excavation sites in total about 400 segments of 1.2 meters length each were tested using many techniques. The K-value (average molecular weight) of the PVC, the degree of gelation...
2014 Chicago : Analytical study of the mechanical behavior of gasket type: spike-bellAuthor(s) : J. Cortes-Perez, S. V. Rivera-Cortés, N. García Castillo, A. Reyes S, R. Cornejo T
An analytical study about the mechanical behavior of pipes union system type: spike-bell-seal during hermeticity test is present. The analysis consist in develop a mathematical model of the gasket considering it, as a load transmission through elastic bodies which is a novel analysis procedure appropriate to solve...
