UNE EN 17415-3:2021
District cooling pipes - Bonded single pipe systems for directly buried cold water networks - Part 3: Factory made steel valve assembly for steel or plastic service pipe, polyurethane thermal insulation and a casing of polyethylene (Endorsed by Asociación Española de Normalización in October of 2021.)
Sistemas de refrigeración urbana. Sistemas de tuberías conectadas directamente a la red enterrada de agua fría. Parte 3: Valvulería de acero para tuberías de servicio en acero o plástico, aislamiento térmico de poliuretano y carcasa de polietileno. (Ratificada por la Asociación Española de Normalización en octubre de 2021.)
| Standard number: | UNE EN 17415-3:2021 |
| Pages: | 32 |
| Released: | 2021-10-01 |
| Status: | Standard |
UNE EN 17415-3:2021
This document specifies requirements, design and test methods for factory made thermally insulated bonded valve assemblies for directly buried district cooling distribution systems, comprising a steel valve from DN 15 to DN 1200, rigid polyurethane foam insulation and a casing of polyethylene. The valve assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers. This document applies only to insulated valve assemblies, for continuous operation with water at various temperatures (1 to 30)°C and a maximum operation pressure of 25 bar. The design is based on an expected service life with continuous operation of a minimum 50 years.