DIN Standards Committee Heating and Ventilation Technology and their Safety
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 a casing of polyethylene
Abstract
This document specifies requirements and test methods for fittings and valves of factory made thermally insulated bonded twin pipe assemblies for hot water networks in accordance with EN 13941-1, comprising two steel service pipes, in most cases steel fittings and/or steel valves, steel components, polyurethane (PUR) foam thermal insulation and a casing of polyethylene. NOTE Steel components can be e.g. fixing bars. The twin 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; - valves for main line. This document applies to fitting assemblies with a minimum design pressure of 1,6 MPa and valve assemblies with a minimum design pressure of 2,5 MPa.
Begin
2023-02-20
WI
00107093
Planned document number
prEN 15698-2
Responsible national committee
NA 041-01-12 AA - District heating and cooling systems (SpA CEN/TC 107 & ISO/TC 341)
Responsible european committee
CEN/TC 107/WG 5 - Fittings and valves
draft standard
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 a casing of polyethylene
2023-07
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