NEN-EN 15632-4
District heating pipes - Pre-insulated flexible pipe systems - Part 4: Bonded system with metal service pipes - Requirements and test methods
| Organization: | NEN |
| Publication Date: | 1 February 2009 |
| Status: | inactive |
| Page Count: | 13 |
| ICS Code (Pipelines and its parts for district heat): | 23.040.07 |
scope:
This European Standard provides requirements and test methods for flexible, pre-insulated, directly buried district heating pipe assemblies with metallic service pipes and bonding between the layers of the pipes and thermal insulation materials of polyurethane or polyisocyanurate foam, the casing pipes being made of polyethylene. This European Standard is valid for maximum operating temperatures up to 140 °C and pressures up to 25 bar for a design lifetime of at least 30 years.
Document History