2018 Las-Vegas : Design of large diameter buried pipes
Author(s) : Anders Andtbacka, Frans Alferink, Peter Sejersen
The behavior of buried plastic pipes is already well described in standards and technical specifications and as well as proven in real life conditions. Plastics pipes in diameters up to around 400 mm are already in use for more than 60 years and pipes with larger diameters for more than 20 years now. All with good...
2018 Las-Vegas : Harmonizing the european hygienic requirements
Author(s) : Ilari Aho, Volker Meyer, Peter Sejersen
The lack of a cross-border acceptance of the approval of the hygienic requirements for plastic pipes systems is inefficient and expensive for the industry. The costs for testing of a pipe system range from a few thousand Euro to more than €30k /reference 3, 4/. The European Plastic Pipe and Fitting Association...
2018 Las-Vegas : HDPE Pipe as a Solution to Utilities Operating on a Manage to Fail Basis
Author(s) : Sarah Eisenstat, Peter Dyke
Many cities in the US are operating their water utility on a “manage to fail” basis, meaning they are replacing >100-year-old pipes at a cycle time of over 150 years. At this rate, most of the pipes will have failed before they can be replaced. Ft. Wayne, IN made the realization that PE pipe is the solution due to its...
2018 Las-Vegas : New en standard for infiltration units
Author(s) : Peter Verlaan
Ten years ago, The European Plastic Pipes and Fittings Association (TEPPFA) has taken the initiative to prepare a draft 'Standard for Infiltration units' based on existing national specifications, at that time (in particular) available in France, Germany, United Kingdom and the Netherlands.
This draft 'Standard for...
2018 Las-Vegas : Squeeze-off and rerounding of plastic pressure pipes
Author(s) : Juergen Wuest, Mirko Wenzel, Andreas Bilsing, Peter Postma, Werner Wessing
Within the scope of a DVGW (German Technical and Scientific Association for Gas and Water) research project the technology of squeezing-off for PE pipes at operating pressures higher than 1 bar and the extension to new materials with higher operating pressures were investigated. For this purpose the tightness of the...
2016 Berlin : Multi layer foam core (MLFC) pipe becomes a standard pipe, world wide
Author(s) : Rob G. Spekreijse, Helmuth Rijnhart
World wide the MLFC pipe market is growing especially the PVC MLFC pipe market. Standards are established first in Europe, Australia, then the America’s, Japan and recently Asian countries are recently following. The main driver using MLFC pipe is reducing the costs of pipe by using less (virgin) material with a...
2016 Berlin : Potentials of terahertz technology for the inspection of plastic pipes
Author(s) : Stefan Kremling, Thomas Hochrein, Peter Heidemeyer
In plastics industry, the use of terahertz technology opens up opportunities for novel non-destructive and contactless testing applications. For example, the thickness of individual layers of a foamed multilayered plastic pipe can be monitored contactless and continuously during the extrusion process. Furthermore,...
2016 Berlin : Total overview of developments in PVC-O in size and couplers.
Author(s) : Paul van Doesburg, Berend Stel, Rob Spekreijse
PVC-O is the accepted pipe solution for the future. Worldwide, more and more countries go in the direction of PVC-O. The main applications for PVC-O at this moment are potable water, wastewater, irrigation and gas.
PVC-O is produced for many years from the 80’s until 2007 the sizes were in majority small (mainly...
2014 Chicago : Cost Saving Solutions in Pipe Production
Author(s) : Rob G. Spekreijse, Johann Bryan
Producing PVC is a competitive market. Unless special products are produced like larger sizes or OPVC, the competiveness is important. Therefore the real issue becomes the saving of cost in producing pipe from PVC. There are many ways of saving costs and that issue must be considered in production companies making...
2014 Chicago : Sewer Installation Time – Comparing PVC with concrete
Author(s) : Peter Verlaan
Several scientific studies underline benefits that plastic sewers have over traditional materials like clay and concrete. A few scientific studies which confirm that statement are for example:
Teppfa SMP project The SMP [explanation?] project showed that plastic systems have 75% fewer leaks than concrete. The full...
2012 Barcelona : New technology on oriented PVC
Author(s) : Rob G. Spekreijse
Although OPVC (equal to PVC-O) exists already for 4 decades, it is only the last 10
years beneficial for production due to better-developed technologies and widespread
acceptance by different standards and norms. The rise of the environmental question
to produce with lower material use, lower energy use and better...