Over the past decade, several studies have been carried out which elaborate the importance and benefits of plastic pipe systems:
Design of Buried Plastics Pipe Systems
In 1999, a key technical study was concluded regarding the design of thermoplastic pipe systems. This project resulted in a much better understanding of the flexible behaviour of plastic pipes and their installation aspects. A design graph was developed, predicting the deflection of pipes in practice.
Sponsored by TEPPFA and PlasticsEurope, the project team consulted a wide range of industry experts from across the sector. Leading professors throughout Europe were given the possibility to check their calculations for pipe installation. A steering committee from industry was also set up to oversee and support the work in whatever shape and whatever form that was needed.
Read more... Abstract, Design Parameters
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Municipal Sewer Systems: How Different Materials Compare?
Plastic sewer pipes in operational service have proved themselves time and again. But how do they compare with traditional pipe materials? What are the environmental impacts of sewer defects and leakage? In 2005, the Sustainable Municipal Pipes Project (SMP) compared thousands of video inspections of sewer pipes from all types of material in existing networks. It was the first independent study of its kind and its conclusions were very interesting.
The study involved the examination of 1,800 km of existing public sewer lines from plastics and non-plastics. Core samples were taken from routine surveys in Germany and comparative studies in The Netherlands and Sweden . Considering the number of defects in reference to the installed length of all sewers of the particular material groups analysed in this study, flexible pipes have on average only 20% ( one fifth) of the defect rates of rigid pipe systems.
Read More... Abstract, Executive Summary, Full Report
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TEPPFA has produced a brochure to advise maintenance contractors and the market on the subject of jetting. Industry has taken up successfully the creation of a guideline. All types of gravity drain and sewer systems require a regular cleaning regime to ensure top performance. Plastic sewer pipes are no exception although their maintenance requires only minimal attention.
Read more...Abstract, Jetting Brochure
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Expected Lifetime of Plastic Pipes
Several significant studies regarding the predicted lifetime of plastic pipes have been carried out. A report published in The Netherlands officially confirmed in 2006 that the life span of existing PVC pipes when installed according to the correct conditions is more than 100 years. A similar study has been published regarding the durability of PE pipes and there are other technical references.
Read more...
Lifetime of PVC pipes 1,
Lifetime of PVC pipes 2,
Lifetime of PVC pipes 3,
Lifetime of PE pipes 1,
Lifetime of PE pipes 2
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Some rather inconsistent information is sometimes disseminated about the nature of non-plastic pipes and the nature of plastic pipe systems. TEPPFA has a few convincing arguments of its own that it would like to share… Read the real story regarding durability, diversity, hydraulics and a lot more characteristics.
Read more... Abstract, Holding Statement Clay versus Plastics
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Installation is an important factor for long lasting performance. TEPPFA is preparing an installation guide for plastic sewer pipes. The guide is being developed in two stages: firstly a leaflet explaining briefly good and bad workmanship in the trench and secondly, a small booklet to serve as an additional guide with background information.
The aim is to communicate the correct and recognised installation methods for the performance required from plastic sewer pipe systems.
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Read more... Abstract, Guide for installation
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Plastic manholes and inspection chambers have been applied in sewer networks for the last twenty years. The benefits of plastic manholes and inspection chambers are widely appreciated. In addition to their obviously easy handling, transport and long life advantages, plastic chambers are a lot more resistant to the corrosive gases and products caused by our waste products as they flow through the underground sewer network. |
Read more... Chambers, FAQ Manholes
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