Extrusion International 2-2021

35 Extrusion International 2/2021 MOLECOR ® molecor.com/en stallation, the deterioration of the material over time, its roughness and, as a consequence of this, its associated loss of load, or its own energy optimization. At the same time, climate change has led many Admin- istrations to define their policy looking for greener and more environmentally friendly solutions. Faced with this reality, TOM ® PVC-O Pipes are possibly the solution that best fits this complicated equation, being the most eco- logical and respectful solution with the environment to use for the transport of water. Theirs larger hydraulic section for the same nominal diameter, together with its low roughness, compared to other plastic pipes, allows, for the transport of the same flow, to reduce energy consumption in water transport by reducing its speed, in other words, at the same speed, their hydraulic capacity is 25% greater than polyethylene and 14% greater than conventional PVC. The complete watertightness of the joints and the durabil- ity of the pipes and fittings, guarantee the safety of the system, thus avoiding leaks of the piped water. Better behavior against water hammer: The celerity of the TOM ® pipe is lower than in the rest of the pipes, which al- lows it to mitigate overpressures and depressions caused by the dreaded water hammer derived from sudden stops in the uncontrolled supply, impulse start-ups, and of the effect produced by the action of auxiliary elements that act on the network. Thanks to their lightness, manageability and ease of con- nection, conferred by their excellent physical and me- chanical characteristics, they can be manually installed up to DN250 mm. Besides this, due to their laminar structure, they are very resistant to impact and to the propagation of cracks, this means that breaks are significantly minimized during handling and installation on site. Their chemical inalterability makes them immune to cor- rosion and highly resistant to fertilizers and phytosanitary products. This fact, together with the exceptional tight- ness of their joints, prevents leaks or contamination of the piped water. Better contribution to sustainable development, present- ingasignificantly lower environmental footprint thanother products. This is due both to the energy efficiency achieved during its manufacture and use, as well as the lower CO2 emission into the atmosphere throughout its life cycle. In this way, they have a lower contribution to the greenhouse effect and climate change on the planet. The technological improvement presented by the innovative and exclusive Molecular Orientation process of Molecor provides the “TOM ® Pipe” with mechanical and hydraulic characteris- tics far superior to the pipes made of traditional materi- als. In pressurized water pipes, a pipe of great mechanical and chemical resistance is achieved, therefore, with a very high useful life; which has led Molecor to guarantee the product for 50 years for all its pipes manufactured in the Loeches production center (Madrid) in accordance with the Spanish standard UNE-EN 17176: 2019 “Pipeline sys- tems in plastic materials for water supply, irrigation, sani- tation and sewerage, buried or aerial, with pressure (based on the European standard EN 17176) and the international standard ISO 16422: 2014 “Pipes and joints made of ori- ented unplasticized poly (vinyl chloride) (PVC-O) for the conveyance of water under pressure ”. TOM ® Pipes have the corresponding AENOR N Mark product certifications No. 001/007104 in accordance with UNE-EN 17176: 2019, and No. 001/006537 in accordance with ISO 16422: 2014.