K536-K multilayer piping systems PE-X/Al, PE-RT/Al, PP-R/Al and PP-RCT/Al for drinking water
This guideline is applicable for products belonging to a multilayer piping systems of PE-X/Al, PE-RT/Al, PP-R/Al and PP-RCT/Al which is intended to be applied for hot and cold drinking water installation inside building at a design pressure of 8 or 10 bar (maximum operating pressure).
The application class covered by this guideline is listed in Table 1.
Table 1: Temperature profile during 50 years
| Temperature [ ºC] |
Lifetime | Design coefficient | |
| T operation | 70 | 49 years | 1,5 |
| T max | 80 | 1 year | 1,3 |
| T malfunction | 95 | 100 hours | 1,0 |
Note: This temperature profile is in accordance with application class 2 of
EN-ISO 21003-1.
For who?
Installers/plumbers, architects, contractors, municipalities, housing association