BS EN 15698-1:2025 - TC

This standard BS EN 15698-1:2025 - TC Tracked Changes. District heating pipes. Bonded twin pipe systems for directly buried hot water networks is classified in these ICS categories:

• 23.040.07 Pipelines and its parts for district heat
• 23.040.10 Iron and steel pipes

This document specifies requirements and test methods for straight lengths of factory made thermally insulated bonded twin pipe assemblies for directly buried hot water networks in accordance with EN 13941-1, comprising two steel service pipes, polyurethane (PUR) foam thermal insulation and a casing of polyethylene. The twin pipe assembly can also include the following additional elements: Measuring wires, spacers and diffusion barriers.