EN 15698-1:2019
(Main)District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 1: Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 1: Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
This document specifies requirements and test methods for straight lengths of factory made thermally insulated bonded twin pipe assemblies for directly buried hot water networks in accordance with EN 13941 1, comprising two steel service pipes, rigid 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.
Fernwärmerohre - Verbundmanteldoppelrohre für direkt erdverlegte Fernwärmenetze - Teil 1: Werkmäßig hergestelltes Verbund-Doppelrohrsystem, bestehend aus Stahl-Mediumrohr, Polyurethan-Wärmedämmung und einem Mantel aus Polyethylen
Dieses Dokument legt Anforderungen und Prüfverfahren für gerade Abschnitte von werkmäßig gedämmten Verbund Doppelrohrsystemen für direkt erdverlegte Fernwärmenetzwerke nach EN 13941 1 fest, die aus zwei Stahl Mediumrohren, einer Polyurethan Hartschaumstoffwärmedämmung und einem Polyethylen¬mantel bestehen.
Das Verbund Rohrsystem kann darüber hinaus die folgenden zusätzlichen Bauteile umfassen: Messdrähte, Abstandhalter und Diffusionsbarrieren.
Tuyaux de chauffage urbain - Systèmes bloqués de bitubes pré-isolés pour les réseaux d'eau chaude enterrés directement - Partie 1 : Assemblages de bitubes manufacturés pour tube de service en acier, isolation thermique en polyuréthane et tube de protection en polyéthylène
Le présent document définit les prescriptions et les méthodes d’essais applicables aux longueurs droites de assemblages de bitubes manufacturés isolés thermiquement pour réseaux d’eau chaude enterrés directement conformes à l’EN 13941-1, comprenant deux tubes de service en acier, une isolation thermique en mousse rigide de polyuréthane et un tube de protection en polyéthylène.
Le tube préisolé peut également comprendre les éléments supplémentaires suivants : les câbles de mesure, les entretoises et les barrières anti diffusion.
Cevi za daljinsko ogrevanje - Poviti dvocevni sistemi za neposredno vkopana vročevodna omrežja - 1. del: Tovarniško izdelan dvocevni sestav iz jeklene cevi, poliuretanske toplotne izolacije in zunanjega polietilenskega plašča
Ta dokument določa zahteve in preskusne metode za ravne odseke tovarniško izdelanih toplotno izoliranih dvocevnih sestavov za neposredno zakopana vročevodna omrežja v skladu s standardom prEN 13941-1, ki so sestavljeni iz jeklenih cevi, trde poliuretanske izolacijske pene in enega polietilenskega plašča. Cevni sestav lahko vključuje tudi naslednje dodatne elemente: merilne žice, distančnike in difuzijske pregrade.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2020
Nadomešča:
SIST EN 15698-1:2009
Cevi za daljinsko ogrevanje - Poviti dvocevni sistemi za neposredno vkopana
vročevodna omrežja - 1. del: Tovarniško izdelan dvocevni sestav iz jeklene cevi,
poliuretanske toplotne izolacije in zunanjega polietilenskega plašča
District heating pipes - Bonded twin pipe systems for directly buried hot water networks -
Part 1: Factory made twin pipe assembly of steel service pipe, polyurethane thermal
insulation and a casing of polyethylene
Fernwärmerohre - Verbundmanteldoppelrohre für direkt erdverlegte Fernwärmenetze -
Teil 1: Werkmäßig hergestelltes Verbund-Doppelrohrsystem, bestehend aus Stahl-
Mediumrohr, Polyurethan-Wärmedämmung und einem Mantel aus Polyethylen
Tuyaux de chauffage urbain - Systèmes bloqués de bitubes pour les réseaux d'eau
chaude enterrés directement - Partie 1 : Assemblages de bitubes manufacturés pour
tube de service en acier, isolation thermique en polyuréthane et tube de protection en
polyéthylène
Ta slovenski standard je istoveten z: EN 15698-1:2019
ICS:
23.040.07 Cevovodi za daljinsko Pipeline and its parts for
ogrevanje in njihovi deli district heat
23.040.10 Železne in jeklene cevi Iron and steel pipes
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 15698-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 23.040.07; 23.040.10 Supersedes EN 15698-1:2009
English Version
District heating pipes - Bonded twin pipe systems for
directly buried hot water networks - Part 1: Factory made
twin pipe assembly of steel service pipes, polyurethane
thermal insulation and one casing of polyethylene
Tuyaux de chauffage urbain - Systèmes bloqués de Fernwärmerohre - Verbundmanteldoppelrohre für
tuyaux doubler pré-isolés pour les réseaux d'eau direkt erdverlegte Fernwärmenetze - Teil 1:
chaude enterrés directement - Assemblage de bitudes Werkmäßig hergestelltes Verbund-Doppelrohrsystem,
pout tube de service en acier, isolation thermique en bestehend aus Stahl-Mediumrohr, Polyurethan-
polyuréthane et tube de protection en polyéthylène Wärmedämmung und einem Mantel aus Polyethylen
This European Standard was approved by CEN on 12 August 2019.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15698-1:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 5
5 Test methods . 9
6 Marking . 12
Annex A (informative) Guidelines for inspection and testing . 13
Annex B (informative) Waste treatment and recycling . 14
Bibliography . 15
European foreword
This document (EN 15698-1:2019) has been prepared by Technical Committee CEN/TC 107 “Prefabricated
district heating and district cooling pipe system”, the secretariat of which is held by DS.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by April 2020, and conflicting national standards shall be withdrawn at
the latest by April 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15698-1:2009.
In comparison with the previous edition, the main changes in this new edition of EN 15698-1 are:
— editorial changes to the new structure of standards prepared by the Technical Committee CEN/TC 107.
EN 15698 is currently composed of the following parts:
— District heating pipes — Bonded twin pipe systems for directly buried hot water networks — Part 1:
Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of
polyethylene;
— 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.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia,
Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Introduction
This document has been elaborated as a complement to the standards on bonded pipe systems for buried
hot water networks using steel service pipe and polyurethane foam thermal insulation and outer casing of
polyethylene.
These standards are:
— EN 253, District heating pipes — Bonded single pipe systems for directly buried hot water networks —
Factory made pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of
polyethylene;
— EN 448, District heating pipes — Bonded single pipe systems for directly buried hot water networks —
Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of
polyethylene;
— EN 488, 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;
— EN 489-1, District heating pipes — Bonded single and twin pipe systems for buried hot water networks —
Part 1: Joint casing assemblies and thermal insulation for hot water networks in accordance with
EN 13941-1;
— EN 13941-1, District heating pipes — Design and installation of thermal insulated bonded single and twin
pipe systems for directly buried hot water networks — Part 1: Design;
— EN 13941-2, District heating pipes — Design and installation of thermal insulated bonded single and twin
pipe systems for directly buried hot water networks — Part 2: Installation;
— EN 14419, District heating pipes — Bonded single and twin pipe systems for directly buried hot water
networks — Surveillance systems;
— EN 15632 (all parts), District heating pipe — Pre-insulated flexible pipe systems;
— EN 15698-2, 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
— EN 17248, District heating and district cooling pipe systems - Terms and definitions.
Waste management and recycling of materials is dealt with in Annex B.
1 Scope
This document specifies requirements and test methods for straight lengths of factory made thermally
insulated bonded twin pipe assemblies for directly buried hot water networks in accordance with
EN 13941-1, comprising two steel service pipes, rigid 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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 253, District heating pipes — Bonded single pipe systems for directly buried hot water networks — Factory
made pipe assembly of steel service pipe, polyurethane thermal insulation and a casing of polyethylene
EN 13941-1, District heating pipes — Design and installation of thermal insulated bonded single and twin pipe
systems for directly buried hot water networks — Part 1: Design
EN 14419, District heating pipes — Bonded single and twin pipe systems for directly buried hot water
networks — Surveillance systems
EN 17248, District heating and district cooling pipe systems — Terms and definitions
EN ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions (ISO 3126)
3 Terms and definitions
For the purpose of this document, the terms and definitions given in EN 17248 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 Requirements
4.1 General
Unless otherwise specified, the requirements shall be valid for each single measurement.
For information on suitable guidelines for inspection of manufactured bonded twin pipe assemblies see
Annex A.
4.2 Steel service pipe
The material of the steel service pipes shall be as specified in EN 13941-1. Dimensions and surface condition
of the steel service pipes shall be as specified in EN 253.
4.3 Casing
Material and casing properties shall be as specified in EN 253.
For the casing diameters specified in Table 1 the dimensions of the casing shall be as specified in EN 253.
The maximum out-of-roundness shall conform to Table 1 and be measured in accordance with EN ISO 3126.
Table 1 — Casing diameters
Nominal Casing diameter, Casing diameter, Casing diameter, Maximum out-of-
diameter thermal thermal thermal roundness
of steel insulation insulation series insulation series
service pipes series1 2 3
DN D D D
c min c min c min
mm mm mm mm
15 125 140 160 1,2
20 125 140 160 1,2
25 140 160 180 1,2
32 160 180 200 1,3
40 160 180 200 1,4
50 200 225 250 1,4
65 225 250 280 1,5
80 250 280 315 1,6
100 315 355 400 2,0
125 400 450 500 2,5
150 450 500 560 3,0
200 560 630 710 4,0
250 710 800 900 5,0
4.4 Polyurethane (PUR) rigid foam thermal insulation
Material and thermal insulation properties shall be as specified in EN 253.
4.5 Pipe assembly
4.5.1 End alignment of flow and return steel service pipes
The alignment of the ends of the flow and return steel service pipes shall not differ more than 1 mm when
measured in the longitudinal direction.
4.5.2 Distance between flow and return steel service pipes
The distance between flow and return steel service pipes shall be in accordance with Table 2.
The tolerance of the distance between the flow and return steel service pipes, Lp, is ± 1 mm when measured
in the pipe ends and ± 2 mm when measured at any point inside the twin pipe assembly, see Figure 1.
Table 2 — Distance between steel service pipes
Nominal diameter of steel Distance between steel
service pipes service pipes L
p
DN
mm
15 19
20 19
25 19
32 19
40 19
50 20
65 20
80 25
100 25
125 30
150 40
200 45
250 45
4.5.3 Twisting of steel service pipes
The twisting, w, of the steel service pipes in one end of the twin pipe assembly in relation to the other end
shall be maximum 3 mm. The twisting, w, of the steel service pipes in any end of the pipe assembly in
relation to any point inside the pipe assembly shall be maximum 6 mm. For cut pipes the twisting, w, shall be
maximum ± 3 mm, see Figure 1.
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