Plastic Pipes Conference Association # 2004 Milan
Sandstrum
The use of polyethylene pipe in potable water systems has grown considerably over the past thirty years on both a domestic (North America) and international (Global) basis. Factors driving this growth have included material improvements, standards development, expansion of innovative construction techniques and growing concerns over the integrity of an aging international infrastructure. This paper will present some specific case studies on the use of high density polyethylene pipe (HDPE) in potable water distribution in both North America and in the international community. Specific factors relating to each project such as design considerations, construction techniques, and/or overall system costs will be examined to provide an understanding as to the engineering basis by which HDPE pipe was specified or selected. Through a thorough understanding of these case studies, it is felt that the design engineer or construction engineer can gain insight into the uses for HDPE water distribution piping systems.
Related papers
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) : Dolores Herran
MOLECOR continuing with its line of leading water infrastructure sector with its technological products, has recently developed a software that can be used through a mobile application or web browser with which users can digitalize and geolocate the different pieces that form a water infrastructure network. This is a...
Author(s) : Michael O’Rourke
The required wall thickness for a fully fused HDPE water main subject to an earthquake induced lateral spread is addressed in this paper. The water main is assumed to be buried via cut and cover (i.e., open cut with typical burial depths in the 2 to 15 feet range) procedures and any laterals have small diameters. For...
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) : 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) : Dr. Tania Weyland, Dr. Tobias Eltze, Dr. Rolf Wittlinger, Marie-Laure Bertet, Gregor Huber
A significant amount of water is lost in transit from the water treatment plant to the consumer. A major cause of water leakages is the deterioration of assets including the use of disinfectants. Using chlorine-based disinfectants is known to be extremely effective in eliminating waterborne pathogens, but they also...
Author(s) : Peter Sejersen, Ludo Debever
Microplastics in drinking water and in food in general has been a topic with ever increasing interest since a publication of a study in the British newspaper The Guardian. The microplastics topic has also high focus on governmental level, e.g. in Germany where a report of Fraunhofer Umsicht /1/ estimates the amount...
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) : 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...
Author(s) : Dr. Ricky Selle
Structural behavior of flexible plastic manholes is very different from rigid concrete products. Although this is state-of-the-art knowledge, no international or EN standard exists on structural design of these products. Therefore, traditional soil models and soil pressure coefficients are usually applied if...
Author(s) : Guido Quesada, Mark Weih
The Plastic Retainer Ring (PRR) gasket is an old friend of pipe joints, and it is still used among other sealing solutions developed more recently. With origins traced back to the end of the 1960s, it is recognized among the first solutions developed for gasketed plastic pipe joints. It is very likely to have...
Author(s) : Luciana Oriqui, Mauro Adamo Seabra, Antonio Rodolfo Jr.
The Brazilian PVC pipe industry maintains specific mechanisms of intense and continuous evaluation of the products regularly offered to the market. These programs are carried out by an independent third-party technical entity, within known public rules and based on the best practices of conformity assessment. Their...
Author(s) : Peter Sejersen, Ilari Aho
European standardization of plastic pipe systems has been on the agenda since the eighties and almost all applications are now described in common European standards. An important expectance however is the hygienic requirements of pipes for drinking water: Most of the EU Member States currently do not coordinate...
Author(s) : Donald Swen, Leanne Pichay, Nicholas Vallin, Alice Wu, Jim Johnston
In the rural commune of Ait Bayoud, Morocco, two of the most remote villages in the area, Ilguiloda and Izgouaren, live with water scarcity. To meet their water needs, women and children walk several kilometers to the nearest spring each day, often multiple times a day. Consequently, children cannot attend school...
Author(s) : Andreas Moerman, Flip van der Valk, Mirjam Blokker KWR, Tjakko Haaijer, Jan Vreeburg,
Drinking water companies with ageing networks are facing vast amounts of drinking water network reconstructions during the coming decades. This development coincides with the energy transition, which puts pressure on the available space underground. These external drivers give drinking water companies an opportunity...
Author(s) : Paul J. Freudenthaler, Joerg Fischer, Mathias Eder, Reinhold W. Lang
For controlled water disinfection, typically chlorine is used and preliminary studies demonstrate its aging and crack growth acceleration effects on polyolefin pipe materials [1, 2]. Although the use of recycled plastics is not prohibited in some ISO standards for polyolefin piping systems [3–5], only small amounts...
Author(s) : Greg Scoby, PE
This paper will detail the steps taken during adoption of HDPE for potable water systems improvements including material justification, creation of related specifications, investigation of available piping components, qualification of contractors and the construction/inspection of related systems. The City of...
Author(s) : Christian Schalich
Plastic pipes for infrastructure and building applications are precisely specified with regards to wall thickness and diameter. Pipe manufacturers use different measuring methods in order to ensure the required dimensional accuracy and maintain a constant high quality. This paper introduces a measuring system based on...
Author(s) : Eng. Grigorios Vigellis, Eng. Mohamed Hageb
Continuous development and innovation in the production of plastic pipes made by high density polyethylene (HDPE) has enabled the industry to produce much larger diameter systems than ever believed possible. The enablers for production of such large plastic pipes are three main pillars: continuous innovation...
Author(s) : Jennifer Ravereau, Jose Teixeira Pinto, Malena Bernabeu, Jose Alacid, Jean-Philippe Le Goff, Frederic Mohier, Benjamin Rabaud
Drinking water network fittings such as valves are made of brass materials known to be robust over long periods. Due to the gradual inflation metallic raw material costs, composite plastic valves have grown in market share. Uncertainties remain, however, on their long-term reliability. The aim of this work is to...
Members of the Association
