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
|Time||Overall service coëfficiënt|
|Tdesign||30+40||20 years+25 years||1,5|
|T malfunction||65+80||100 hours +10 hours||1,0|
|Remark: the mentioned temperature profile is in |
accordance with class 3 of NEN-ISO 10508.
Installers/plumbers, architects, contractors, municipalities, housing association