District heating pipes - Pre-insulated flexible pipe systems - Part 3: Non bonded system with plastic service pipes; requirements and test methods
|Publication Date:||1 December 2014|
|ICS Code (Pipelines and its parts for district heat):||23.040.07|
NEN-EN 15632-3 provides requirements and test methods for flexible, pre-insulated, direct buried district heating pipes with plastic service pipes and no bonding between the layers of the pipes. This European Standard is valid for maximum operating temperatures of 95 °C and maximum operating pressures up to 10 bar for a design lifetime of at least 30 years. This European Standard does not cover surveillance systems.