DIN EN 488-2:2025-07
District heating and district cooling pipes - Bonded pipe systems for directly buried hot and cold water networks - Part 2: Factory made steel service valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German version EN 488-2:2025
| Fecha edición: |
2025-07-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document specifies requirements for factory made thermally insulated bonded steel service valve assemblies for filling, draining, venting and operation purposes for directly buried hot and cold water networks in accordance with EN 13941-1, comprising a steel service valve, steel service pipe, polyurethane (PUR) foam thermal insulation and a casing of polyethylene (PE). This document applies of steel service valve assemblies with an internal pressure of maximum 2,5 MPa. The principles of this document can be applied to thermal insulated bonded steel service valve assemblies with internal pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure. The steel service valve assembly can also include the following additional elements: measuring wires, spacers, and diffusion barriers. |
| Keywords: | Air-conditioning systems|Casing|Composite jacket pipes|Continuous operation|Design|Dimensions|Distant heating|Erecting (construction operation)|Heating engineering|Heating installations|Hot water networks|Insulations|Jacket tubes|Lagging of a drum|Long distance heating systems|Maintenance|Marking|Pipe system|Pipes|Piping system|Polyethylene|Polyurethane|Prefabricated|Resistance|Rigid foams|Sheathed cables|Shut-off valves|Specification (approval)|Steel pipes|Steel valve|Surveillance (approval)|Test forces|Test methods|Testing|Thermal insulation|Tightness|Underground|Underground installations|Valves|Warm water|Welding|Welding work |
| ICS: | 23.040.07 - Canalizaciones y sus componentes para calefacción central |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN 488-2:2025 |
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Reemplazo Normas |
Reemplaza a DIN EN 488-2:2023-08 |
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