District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made steel valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene
NORM herausgegeben am 1.12.2019
Bezeichnung normen: ČSN EN 488
Zeichen: 383373
Katalog-Nummer: 509114
Ausgabedatum normen: 1.12.2019
Zahl der Seiten: 32
Gewicht ca.: 96 g (0.21 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
This document specifies requirements and test methods for factory made thermally insulated bonded valve assemblies for hot water networks in accordance with EN 13941-1, comprising a steel valve, rigid polyurethane foam thermal insulation and a casing of polyethylene.
The valve assembly could also include the following additional elements: measuring wires, spacers and diffusion barriers