Tabel 1. Temperature profile during 50 years


Temperature [ ºC]TimeOverall service coefficient
Tcold2014 years1,25
Tdesign60+8025 years+10 years1,5
Tmax901 years1,3
T malfunction100100 hours1,0
Remark: the mentioned temperature
profile is in accordance with class 5 of ISO 10508.



PE-X/Al piping systems for radiator connections which are designed according class 5 may also be used for class 4 floorheating systems.

Installers/plumbers, architects, contractors, municipalities, housing association