DIN EN 488-1:2025-07
District heating pipes - Bonded single pipe systems for directly buried hot water networks - Part 1: Factory made steel shut-off valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German version EN 488-1:2025
| Fecha edición: |
2025-07-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document specifies requirements and test methods for factory made thermally insulated bonded steel shut-off valve assemblies for hot water networks in accordance with EN 13941-1, comprising a steel valve, valve extension pipes, polyurethane (PUR) foam thermal insulation and a casing of polyethylene. This document applies to steel valve assemblies with an internal pressure of maximum 2,5 MPa. The principles of this document can be applied to thermal insulated bonded steel valve assemblies with internal pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure. The steel shut-off 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|Plug valves|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: | 23.060.01 - Valvulería en general, 23.040.07 - Canalizaciones y sus componentes para calefacción central |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN 488-1:2025 |
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Reemplazo Normas |
Reemplaza a DIN EN 488:2020-03 Reemplaza a DIN EN 488-1:2023-08 |
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