District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 2: Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
STANDARD published on 1.2.2020
Designation standards: ČSN EN 15698-2
Classification mark: 383377
Catalog number: 509118
Publication date standards: 1.2.2020
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
This document specifies requirements and test methods for fittings of factory made thermally insulated bonded twin pipe assemblies for hot water networks in accordance with EN 13941-1, comprising two steel service fittings and/or valves, polyurethane foam thermal insulation and one casing of polyethylene. The pipe assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers. This document covers the following assemblies: - fittings: bends, T-pieces and reducers; - valve construction. This document applies to fitting and valve assemblies with a minimum design pressure of 1,6 MPa (overpressure)