Skip to main content


Search the whole content of the site. The search results will contain; Product pages, Downloads, Links etc.


Search for the products of the Interplast


Search Technical Guides and assets


Search pages and site content.

PP-RCT pipes

Interplast, having an innovative character, strategically produces and promotes the latest generation of PP-RCT polypropylene pipes, which can be described as ¨ The future of plastic piping ¨

PP – RCT is a polypropylene of random polymerization of modified dual core crystallinity.


  • Higher tolerance from the classic PP-R, as this is specified in EN 15874 and DIN 8077 (especially at high temperatures).
  • The PP-RCT, according to the European standards, does not show a transition and change of inclination in the logarithmic diagrams of hydraulic tolerance, due to its excellent behavior during aging.
  • Excellent behavior with chlorine.
  • Reduced wall thickness with greater strengths.
  • Bigger quantity of transported water and  better pressure drops compared to SDR 6 + 7,4.
  • Higher hydraulic efficiency of networks
  • Use in demanding district heating systems, even when the supply temperature is 100°C.
  • Metal deactivators
  • UV stabilizers 


According to DIN 8077 the PP-R, in temperatures 80°C with SDR 7,4 for the duration of 25 years will withstand 6,2 bar, while PP-RCT, at a temperature of 80°C with SDR 9 for the duration of 25 years will withstand 8.6 bar.

Important Notes

  • PP-RCT pipes are certified for their mechanical strengths by MIRTEC-EBETAM and for drinking water networks by WRAS.
  • All three layers should be of PP-RCT. Pipes where only the inner layer is made of PP-RCT cannot be certified.
  • Production potentials in SDR 17 from 125mm up to 315mm.

To find technical manuals, promotional materials, certifications and warranties, visit the Downloads page


Brass products Factory
Kefalovrisou 23, 13 677 st. Monopati, Acharnai, Athens, Greece
Plastic factory
Industrial area of Komotini, 69100 Komotini, Greece
Offices / Exhibition
El. Venizlou 9B, 57 001 Thermi Thessaloniki, Greece