PVC pipes and fittings for external sewer systems are intended for pressureless transport of wastewater with a pH of 2–12 and temperatures up to +40ºC, or briefly up to +60ºC. Sewer pipes are used in underground pressureless wastewater systems laid in the ground under or beside roads, or in other utility areas, and for culverts through road embankments or in bridge structures built along road routes. They are made from unplasticised PVC-U polyvinyl chloride, a material with high strength, impact resistance and resistance to many chemicals. Pipes and fittings are orange-brown. The smooth surface prevents scale and sediment build-up. A simple and functional joint system is used for connecting sewer pipes. Each pipe has a socket with a silicone-lubricated seal. The joint is very tight and installation is trouble-free.
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