PVC pipes and fittings for external sewerage systems are designed for pressureless transport of wastewater with a pH value of 2–12 and temperatures up to +40 ºC, or short-term up to +60 ºC. Sewer pipes are used in underground pressureless wastewater systems laid in the ground under or beyond roads, or in other places used for utility engineering purposes, as well as for culverts through road embankments or bridge structures built on road routes. The raw material used in their production is unplasticised PVC-U (polyvinyl chloride), a material with high strength, impact resistance and resistance to many chemicals. The pipes and fittings are orange-brown. The smooth surface of the products prevents the formation of scale and deposits. A simple and functional connection system is used for joining sewer pipes. Each pipe has a socket with a silicone-sealed gasket. This joint is very tight and installation is trouble-free.
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