The use of plastic as a pipe material for the transport of gas and water has increased over the last few years, attributed to the significant advantages of this material such as corrosion resistance, strengthto-weight ratio, lightness, flexibility and cost. Consequently, these pipes have a long predicted service life. One of the pipes’ joining processes is electrofusion welding. As for all kind...

Axisymmetric acoustic wave-modes propagating along buried water pipes have been investigated by the method of finite elements and experimentally. High precision dispersion relations are presented in this paper as a function of the geometry, the embedding material and the elastic modulus of the pipes. It is found that at low frequencies the fundamental axisymmetric acoustic mode of the water cyl...

D. Šoštarić, A. Pintarić, Faculty of Electrical Engineering, J. J. Strossmayer University of Osijek, Osijek, Croatia. I. Samardžić, Mechanical Engineering Faculty, J. J. Strossmayer University of Osijek, Slavonski Brod, Croatia. The paper presents the main parameters of fusion welding and their Off line analysis of Polyethylene high-density (PE-HD) pipes. By direct measurements of voltage and c...

Green buildings are increasingly being plumbed with crosslinked polyethylene (PEX) potable water pipe. Tap water quality was investigated at a six month old plumbing system and chemical and odor quality impacts of six PEX pipe brands were examined. Eleven PEX related contaminants were found in the plumbing system; one regulated (toluene) and several unregulated: Antioxidant degradation products...