Raupiano Plus Product Book | Rehau | Reece Plumbing

2.3 FittingsRedirections in water flow at bends causes increased turbulence whichresults in greater air-borne sound transmission.RAUPIANO PLUS bends from size DN110 to DN160 consist of targetedmass optimisation zones which help to reduce sound transmission inthese areas.RAUPIANO PLUS system has been independently tested by Renzo Toninand Associates, a member of the Association of Australian AcousticalConsultants (AAAC) at the National Acoustic Laboratories (NAL). Testresults were assessed by a separate AAAC member to ensure impartialityof the report. The report found conclusively that RAUPIANO PLUS pipesystem exceeds the R w + C tr 40 requirement of the National ConstructionCode Vol.1 / Building Code of Australia, and that a stand alone RAUPIANOPLUS system is comparable, in terms of sound insulation, to a fully laggedPVC system behind a specified ceiling separation. Refer to Chapter 4Sound insulation.The acoustic test letters from the assessing acoustic engineers areavailable in the Appendix A.2.5 MarkingFig. 2-2RAUPIANO PLUS bend with reinforced impact area.Pipes and fittings are marked with the following:- Watermark- Manufacturer’s mark- Approval number- Mark of quality- Ice crystal (AS/NZS 7671 and DIN EN 1411)- Nominal diameter (DN)- Year of manufacture- Production line- Material- Angle specification (with elbows and branches)Fig. 2-3 Specially designed bends with increased wall thickness reduce airtransmittedsound even further.2.4 Sound insulationThe sound-insulating drainage system RAUPIANO PLUS offersquality, quietness and living comfort in important areas of a building.9