Papers
Plastic Pipes Conference Association # 2016 Berlin
Haemi Pollett, Jacob John
In an effort to better understand the different demand upon environmental impact including prolonged and unexpected cold weather patterns, there is a need for the piping system to meet a degree of freeze and thaw resistance. The freeze and thaw cycling test protocol, Water Quality Association (WQA) ORD 1502, is developed in partnership with the Uponor Technology Group (UTG) and Standards Developing Organizations (SDOs)/Accredited Testing and Certification Agencies. WQA ORD 1502 is referenced within the Canadian Construction Materials Commission (CCMC) report issued by National Research Council (NRC) of Canada recognizing the importance and needs for assuring environmental impact on plastic pipes. This study discusses the preliminary test method developed and freeze-thaw cycle data obtained for PEX pipes.
Cross-linked polyethylene (PEX) piping system has been widely used for the residential plumbing and floor heating applications for over 50 years worldwide. Especially within the last decade the use of PEX piping system has grown its acceptance within “commercial” construction where typically engineers are involved in planning, design and supervision of installation and maintenance in both Canada and the U.S.
Understanding the different demand upon environmental impact including prolonged and unexpected cold weather patterns, there is a need for the piping system to meet a degree of freeze and thaw resistance. The Freeze and Thaw Cycling of PEX was developed in partnership with the Standards Developing Organizations (SDOs). The test protocol WQA ORD 1502 is supported by the National Research Council (NRC) of Canada and they are including reference within the Canadian Construction Materials Commission (CCMC) report.
Also, potential abuse based on the way of handling the piping system may result in undesired impact on overall performance; therefore, having in-depth understanding of performance of such piping system is required when meeting the minimum performance requirements per applicable codes and standards are not sufficient. The test condition has been modified upon extending the duration or degree of exposure so that the limitation on such piping system can be defined. The testing included external notches of both 10% and 20%. This cycle was repeated five times and a burst test was conducted on the exposed sample assembly.
Related papers
Author(s) : Dr. Henning Stieglitz
Urbanization and the increasing effects of climate change have meant the supply of fresh water and the disposal of wastewater, have become increasingly important in recent years. It is foreseeable that this demand will continue and intensify. In this context, plastic pipe plays a major role due to its unique...
Author(s) : Ajay Taraiya, Peter Degenhart, Mark Boerakker
In PPXX, a technology was presented for the first time that could bi-axially orient polyolefin pipes. With this technology, it is possible to prepare pipes that have a performance far beyond the standard ones. One approach to achieving this performance is via a continuous in-line process. To optimize the in-line...
Author(s) : Robin Bresser, Ilari Aho, Shima Holder, Tijana Duric, Kaisa Suvilampi
Through innovation and experience, PEX pipe solutions have been enabling comfortable heating and safe plumbing with a successful 50-year track record. They are an important facilitator of the green energy transition and the ambitious climate targets of, for example, the European Union (EU) Green Deal by enabling...
Author(s) : Anders Andtbacka, Peter Sejersen
In March 1999, a project report on the performance of buried Thermoplastics pipes was published by TEPPFA /1/. In the report, deflection and strain data on buried pipes were analyzed and compared with calculation results from several well-known static calculation models in use in Europe. Pipes were installed to...
Author(s) : Jacob John, Suresh Shenoy, Patrik Roseen
Cross-linked polyethylene (PEX) pipes continue to gain popularity in plumbing and indoor climate applications around the globe. This study focuses on increasing the sustainability of PEX pipes by utilizing recycled PEX and production waste streams into PEX production. Different methods available for recycling and the...
Author(s) : Aisha Khaleel, Suleyman Deveci, Sulistiyanto Nugroho, Fatima AlHameli
The use of polyethylene pipes in transportation networks of pressurized water and gas have shown superb performance over the history. High density, high-molecular-weight, and bi-modal polyethylene materials, known as PE80, PE100 and PE100RC, have successfully served the market for many years in standard applications....
Author(s) : Michael Pluimer, Christian Herrild, Patrick Vibien
With enhanced interest in a circular economy and the potential use of recycled HDPE within HDPE conduit, a research project was undertaken to investigate the necessary technical requirements when using recycled HDPE. High Density Polyethylene (HDPE) conduit is a durable product designed to protect cables...
Author(s) : Cindy Bray
For over two decades, the plastics pipe industry in Australia has aimed to recycle the maximum amount of usable plastic pipe and other suitable materials into new plastic pipes through programs such as take-back schemes and providing collection facilities on manufacturing sites. In Australia long-term sustainability...
Author(s) : Tobias Johnsen, Ole Grøndahl Hansen
With a growing global population that will primarily settle in urban areas, more and more agricultural land will be converted into dwellings, roads etc. As the demand for food in 2050 will be 60% greater than today, a conflict between Sustainable Development Goals 2 (Zero Hunger) and 11 (Sustainable Cities and...
Author(s) : Gerald Pinter, Lukas Travnicek, Johannes Wiener, Jan Poduska, Florian Arbeiter, Pavel Hutar
Crack initiation and subsequent crack growth are known to be the key factors which determine the final lifetime of a polymeric pipe. Subsequently, exact knowledge regarding the crack growth behavior is a key issue to guarantee safe operation. Furthermore, novel concepts are needed to satisfy increasing demands, for...
Author(s) : Zhanjie Wang, Jing Guo, Lin Wang
In the past two years, the Chinese plastic pipe industry has faced a complex and changeable development situation. The domestic economy has faced the pressure of demand shrinkage, supply impact, and expected weakness, and the market has changed greatly. The impact of the Covid-19 and the influence of many unfavorable...
Author(s) : Márton Bredács, Jutta Geier, Mario Messiha, Gernot Oreski, Gerald Koinig, Raphael Horvath, Szilveszter Gergely, Gerald Pinter
In 2020, the global plastics production was 367 million tons. In Europe 20 % was used in the building and construction sector to manufacture in significant proportion polyethylene (PE) and polypropylene (PP) pipes [1]. To increase the current 30 % recycling rate, it is crucial to improve the quality of recyclates and...
Author(s) : Lucy Croker, Matthew Hynes, Cindy Bray
In Australia, the first Environmental Product Declarations (EPDs) covering plastic pipes were published circa 2015/16 by two local manufacturers, supported by the peak industry association. Although this was a milestone event at the time, the reality was that the broader industry did not understand the information...
Author(s) : A. Marangoni
The competitiveness of plastic pipes vs. non plastic pipes for water and sewer networks relies on both a superior performance to cost ratio and environmental benefits that can be offered to the utility industry, across the whole lifecycle of these networks. In order to help the European pipe network owners in...
Author(s) : Tobias Johnsen
To ensure the highest possible quality of plastic pipes for the Nordic market, the Nordic Poly Mark currently only allows virgin material or own reprocessed material. In order to accelerate the circular plastic pipe economy in the Nordics, a partnership between a PVC pipe waste collection system, a PVC pipe producer...
Author(s) : Chris Greggs
Much has been done to improve the quality and efficiency of HDPE pipe installations over the years. Now, a totally new concept for fusion where the machine meets the pipe where it lays to improve worksite safety, boost jobsite efficiency, and minimize the amount of time spent between fusions has been developed. This...
Author(s) : Jay Parvez, Richard Nichols
All thermoplastic and thermoset pipes must consider the impacts of cyclic loading on overall performance. Since its first use, PVC pipes have been tested for its resilience to such loading. As testing evolved over time, the method to determine cyclic capacity for gasketed PVC pipes has improved. Previously, the...
Author(s) : Peter Youssef, Sultan Alkendi, Hussein Basha
Bahr El-Baqar Water Treatment Plant, produces 2 billion m3 per year, introduces a sustainable solution for environmental pollution recovery and irrigation water source (via recycling the water of Bahr El- Baqar drain); whereas it protects the environment and generates water to support the cultivation of 4000 km2 in...
Author(s) : J. Lahoz
An investigation project was launched in 2020 to clarify the relationships between the processing conditions and the design lifetime of PVC-U 250 pipes. Ca/Zn stabilized pressure pipes were extruded with different processing temperatures and characterized by their DSC B-onset temperature and degree of gelation. Their...
Author(s) : Suleyman Deveci, Aisha Khaleel, Birkan Eryigit
Short and long term hydrostatic pressure resistance of plastic pipes are measured according to ISO 1167, by applying an internal pressure that is calculated for the target hoop stress considering outer diameter and wall thickness of the pipe samples. Due to the nature of the extrusion process, wall thickness...
Members of the Association
