Sewage pipe, Plastic, 300 mm. To ensure the long-term trouble-free service of corrugated pipes and fittings in underground trench applications, the backfill around the pipes must be compacted in layers to avoid weak spots. Filling the area under the pipes with bedding material is particularly important. If the backfilling process is carried out according to specifications and thoroughly compacted, traffic and soil loads will be partially transferred to the backfill, allowing the pipe to function without issues throughout its lifespan. Corrugated pipes and fittings are produced from HDPE raw material in diameters of ø 100-1000mm. They are easily used in sewage, domestic and industrial waste disposal, rainwater discharge, and drainage lines. Due to their flexible structure, they are not affected by earthquakes and seismic movements. With a 50-year service life, they ensure the trouble-free operation of infrastructure systems.