Plastic Pipes Conference Association # 2012 Barcelona
Serrano de Rivera Angela
In the ultimate field environment for testing polyethylene (PE) gas pipe, New Mexico Gas Company initiated an internal evaluation of bimodal PE4710 pipe in 2005. These extensive laboratory and field evaluations were vitally important to ensure that the material could be easily fused to the existing pipe network and in the dramatic mix of New Mexico’s topography. This paper is an overview of those tests and their results.
Related papers
Author(s) : Nolene Byrne, Rasike De Silva, Keith Lenghaus, Tim Hilditch
Plastic pipes have been utilized in the Australian gas distribution network since the early 1970s. The most common plastic type found in Australia is polyethylene (PE), although nylon is extensively used in New South Wales. Early installation of PE pipe was completed using the first generation high density type PE50...
Author(s) : René Hermkens, Ernst van der Stok, Johannes de Bruin, Jeroen Weller
The replacement of fossil fuels like natural gas by sustainable gases such as biogas and hydrogen can mitigate global warming. There has been some debate about the impact of sustainable gases on the materials used in the gas grid. An extensive study of the behaviour of PE, PVC, POM and rubber materials was therefore...
Author(s) : Johannes de Bruin, Dr. Bert Dalmolen, Albo van Hateren
Normal High Density Polyethylene (HDPE) is commonly used as the fluid contacting element, or the “inner-liner”, in Reinforced Thermoplastic Pipes (RTP) and steel pipes up to 65 ºC. Through a modification of the HDPE polymer matrix, by adding nanoparticles, the E-modulus can be increased. Research shows that...
Author(s) : Herbert Terwyen, Roberto de Palo, Manuel Sanchez
New standards in Italy legally require that chlorine dioxide is used as a disinfectant in any new installation that treat water for human consumption. Chlorine dioxide is preferred to other disinfectants when surface water or water from rivers is used for drinking water supply and particularly Southern European...
Author(s) : J. Cortes-Perez, S. V. Rivera-Cortés, N. García Castillo, A. Reyes S, R. Cornejo T
An analytical study about the mechanical behavior of pipes union system type: spike-bell-seal during hermeticity test is present. The analysis consist in develop a mathematical model of the gasket considering it, as a load transmission through elastic bodies which is a novel analysis procedure appropriate to solve...
Author(s) : Monica de la Cruz
Always important, but especially relevant in these times of cost cuttings, is to be aware of and to take into account all costs related to our activity. This paper discloses the contribution of the plastic pipes installation quality in the cost savings for our industry and customers. Generally, our clients only...
Author(s) : Mónica de la Cruz
As plastic pipes industry committed to quality it is important not only to offer quality certified pipes and fittings but also to ensure their installation is done properly. The skill of the operator is essential for the assurance of the quality of his work and to avoid deficiencies in the installation which could...
Author(s) : Ignacio Muñoz de Juan
PVC O pipes : an economical & environmental analysis for water companies and pipe manufacturers. The global crisis has brought new challenges to the water industry. Meanwhile investments in water are nearly unavoidable to maintain or increase the living quality; the real situation is that water companies, either...
Author(s) : De Vries
Basell is a worldwide leader in the technology for polyolefinic materials. Being the major technology supplier in PP, Basell also provides technologies for PE slurry, high- and low pressure gas phase and related catalyst systems. Specifically, it has a major product portfolio in a large number of pipe applications...
Author(s) : R. de Palo
One of the most critical points in the design of a material with long term high burst pressure performance is to limit the so called "brittle failure", where slow crack growth propagation mode takes place. Since many years, polypropylene has been produced via cascade processes, where different PP based structures are...
Author(s) : Schemm, Van de Vliet, Koennecke, Grasmeder
Polybutene-1 (PB-1) is a relatively unexplored polyolefin which shares many features in common with conventional polyolefins like polypropylene and polyethylene, while at the same time offering versatility, value and opportunity through a range of properties not usually associated with this type of resin. Pipes made...
Author(s) : De Rosa, Spence
The cost benefits of thin walled MDPE pipe systems for the rehabilitation of gas and water mains are significant. However, the key short-term factor in making decisions about rehabilitation and replacement choices is often the initial cost of the work, rather than the total cost of ownership. The various spray-applied...
Author(s) : De Rosa, Lane
The systems reviewed below refer predominantly to the use of PE pipe, as this is the material of choice for many of the applications described. Recent developments in other pipeline materials have introduced the possibility of using alternatives to PE in these applications where there is a cost-benefit of doing so....
Author(s) : de Putter
The Plastics Pipes Industry (users and manufacturers) has made great progress to achieve European Standardization of their products. Much work still must to be done, including supporting at a national level what has been achieved with draft prEN or prEN ' s Insecurity exists with the harmonization of the...
Author(s) : De Craene, Schwenke
Because pipes are submitted to cyclic stresses in the UEWS test, this method offers some advantages over the standard long term burst pressure test. Clear transition points between elastic and inelastic regions of the stress-strain curve can be identified. These transition points are a sound basis for the...
Author(s) : De Putter
New calculation method for long term Hydrostatic Strength is explained and demonstrated by data on PVC, CPVC and PE. Basis is also given in ISO DTR 9080.2.Pipes and fittings of thermoplastic materials are used in all types of applications in the water, gas, sewer and other industrial applications where a long life is...
Author(s) : Potente, de Zeeuw
Ultrasonic and radiographic methods were used up to now to locate discontinuities in materials. The author shows that it is also possible to determine other factors which have an adverse effect on quality. A num- ber of conditions are discussed which exert an influence on the strain of materials It is shown that...
Members of the Association
