Papers
Plastic Pipes Conference Association # 2016 Berlin
Jun Abe, Takahiro Kasatani, Yuji Higuchi
Osaka Gas has carried out the production, supply, and sale of gas since 1905 and has distributed gas to 7,200,000 customers. The piping used for distribution was originally steel and cast iron pipes, but we have been adopting the use of polyethylene piping for low pressure distribution since 1980, and have to date laid approximately 15,000km of pipe.
Regarding the need to continue using this polyethylene piping indefinitely without having to replace it, we are engaging in various initiatives for the purpose of improving fusion quality, in combination with strengthening our quality controls for polyethylene piping materials. For instance, we carry out specialized technical skills training based on the Osaka Gas system of qualifications authorization for the workers at our contracted construction companies, quality inspections of fusion-joined sections of laid polyethylene pipe, and also the development of new fusion techniques through our technology development division. Moreover, we perform yearly evaluations of our contractors based on such factors as the results of our quality inspections of fusionjoined sections, then increase or decrease the quantity of work assigned to each company according to the outcome. We are establishing as one system these initiatives to improve fusion quality and this mechanism we have formulated in connection with determining the work volume to be granted to our construction companies
In addition, we are maintaining a high standard of safety management and security by fortifying our controls for the prevention of breakage that may occur in the performance of other work after the time polyethylene pipe is laid.
This report introduces the various efforts we are undertaking toward the improvement of construction quality regarding the laying of our polyethylene pipe.
Related papers
Author(s) : Dr. Holger Brüning, Serge Hascoët, Yann Delanne, Didier Nozahic, Jawdat Mansour, José Santana
RTE operates, maintains and develops the French electricity network, including the High and very High Voltage cable lines. Their network is the largest in Europe and includes over 6400 km of underground HV links operated in 2018. The company is modernizing and developing its network by investing 1.5 billion euros per...
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) : Zhanjie Wang, Yan Zhao, Melody Guo, Yanju Fan, Wei Tang
In the past ten years, China's plastic pipe industry has maintained a steady growth and made great progress in the upgrading of industrial structure, technological innovation, and improvement of quality levels. However, at the same time, in the face of the complex changes in the current economic situation, especially...
Author(s) : Wang Zhanjie
As the largest production country, with numerous applications, China’s plastic pipe industry is developing steadily to meet the demand and needs. This paper analyzes the current situation and barriers, and proposes the breakthroughs to achieve a sustainable, stable and healthy development of China’s plastic pipe...
Author(s) : Jiang Tongjun, Fu Zhimin, Yang Yuanjin
This paper introduces the application of CPVC pipe in fire sprinkler systems in China. The advantages and differences of CPVC pipe versus to galvanized steel pipes, the improvement of related laws and regulations and the market outlook are discussed. The overall result is a change in the upstream and downstream...
Author(s) : HU Fa, LI Yue, GAO Yuanjie, ZHE Dongmei, WEI Ruoqi
This paper expounds the development status of composite insulating pipe in the heating and chemical fields from the aspects of materials, structure and application. Combined with the relevant standards and technical requirements, the performance advantages and the key evaluation methods such as axial shear strength,...
Author(s) : Christian Schalich
This paper introduces a new technology based on millimeter waves. It provides a noncontact, non-destructive, online measurement of inner and outer diameter, ovality, wall thicknesses, and sagging (sagging of the melt during solidification at a too high viscosity) of large plastic pipes during the extrusion...
Author(s) : C. B. Dandekar
Agriculture is the major occupation practiced in India, and irrigation is therefore a vital part of the entire water budget of the country. India possesses only 4% of the total world’s fresh water resource, of which, more than 80% is consumed solely in the Agriculture Sector (Dhawan, 2017). Canal based distribution...
Author(s) : Dominique GUEUGNAUT, Adil BOUJLAL, Aymeric LOPITAUX, Bertrand SEVRE
A special concept has been developed by GRTgaz Research and Innovation Center for Energy (RICE) for temperature mapping at the interface of an electrowelded assembly.The technical solution consists of a tubular piece in place of the real PE pipe, made of a non-weldable polymer with thermal parameters close to those...
Author(s) : Sverre Tragethon, Martin Andersson
Global mega trends push for investments in sewage treatment capacity & efficiency. A trend is to go for central regional treatment sites, typically remotely located from dense populated cities. This calls for high capacity pressure sewage transmission pipelines. Reliable operation is of course of paramount importance...
Author(s) : Robert Lawrence, Mohana Murali
The paper covers the growth of the polyethylene pipe sector in the Middle East from the 90s to the present. The initial slow uptake was related to ignorance of the material properties from the end users through to designers and installers. Recently the Middle East has become a world leader in the use of ever larger...
Author(s) : Lonnie Corley, Dane Chang, Harvey Svetlik, Matt Brandes, Thomas Musto, Frank Schaaf, David Fink
This paper presents a brief overview of a challenging project at the Callaway Nuclear Power Plant where HDPE was utilized to replace degraded steel buried piping in a Safety Related water system. Callaway was the first Nuclear Power plant to obtain NRC approval and successfully place the HDPE piping system into...
Author(s) : Katsutaka Nakagami, Takahiro Kasatani
Osaka Gas improves various approaches to the improvement of polyethylene piping construction quality and executes the approaches. As a result of that, polyethylene pipes in Osaka Gas maintain high-quality and withstand the earthquakes. This paper shows these methods and performance against earthquakes in Japan. In...
Author(s) : C.B. Dandekar
Plastic Corrugated Piping System (PCPS) was introduced in India in 2001, much later than the western world started using it for various applications. It received a mixed response from the Govt. Agencies, but was well accepted by the market, actual users and standardizing institutions. PCPS finds applications in...
Author(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...
Author(s) : John Fishburne
The United States water industry relies heavily on American Water Works Association (AWWA) Standards publications for product ratings, design parameters, and guidance on installation methodologies. In September 2015, AWWA published Standard C906-15 covering 4” – 65” polyethylene pressure pipe for waterworks...
Author(s) : Jim Goddard, Mario Paredes
Samples of polyethylene pipe supplied to mining projects throughout the Americas were selected and tested for compliance with existing ASTM specifications. Estimated service life of these pipe products in mining applications are made based on the laboratory tests required in the ASTM specifications. Anticipated...
Author(s) : HENK MEERMAN
PVC-Oriented is the second generation of PVC-Unplasticized. Molecular orientation of PVC-U pipes results in a strong improvement of the physical and mechanical properties. The new draft European standard for PVCoriented plastic piping systems is based on the ISO 16422 “Pipes and joints made out of oriented...
Author(s) : Mohana Murali
Polyethylene pipes have been used for over half a century in Europe and North America and just over two decades in the Middle East. A recurring misgiving amongst first time users is the behavior of the pipes in the extreme climatic conditions such as the Arabian Gulf. High temperatures do exist but there are...
Author(s) : White G. Jee
The Lake Charles Chemicals Project (LCCP) is a new chemicals plant facility and as a result, corrosion and compatibility as well as cost play a very important role in the selection of piping components. For the purpose of this case study, the focus will be the high density polyethylene (HDPE) piping system used in...
Members of the Association
