

PP buried (underground) sewage systems contains compact type pipes, with monolayer wall in terms of composition and structure, smooth type both externally and internally and joint fittings according SR EN 1852 - 1/2.
- Maximum temperatures of waste water transported through PP systems can be 95 degrees, much more supported temperatures in PE systems and PVC - U being limited to 60 degrees.
- The pipes are chanffred at the both ends for easy jointing.
- The estimated lifetime of PP system is at least 50 years.
