For the application in piping systems for hot water distribution for floor heating at a design pressure (= maximum operating pressure) of 6 bar (7 bar absolute or 6 bar overpressure), or 4 bar (5 bar absolute or 4 bar overpressure) under the conditions mentioned in table 1.

Table 1 – Temperature profile during 50 years

[ ºC]
TimeOverall service coëfficiënt
Tcold200,5 years1,25
Tdesign30+4020 years+25 years1,5
Tmax504,5 years1,3
T malfunction65+80100 hours +10 hours1,0
Remark: the mentioned temperature profile is in
accordance with class 3 of NEN-ISO 10508.

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