SIST EN ISO 11295:2010
(Main)Classification and information on design of plastics piping systems used for renovation (ISO 11295:2010)
Classification and information on design of plastics piping systems used for renovation (ISO 11295:2010)
This International Standard defines and describes families of techniques for the renovation of non-pressure and pressure pipelines through the use of plastics pipes, fittings and ancillary components. For each technique family, it identifies areas of application from the range covered by existing renovation product standards, which include underground drainage and sewerage, and underground water and gas supply networks. This International Standard provides information on the principles of, but not the detailed methodologies for, the design of plastics piping systems applied as linings to existing pipelines, covering: - existing pipeline and site conditions; - lining system functions; - structural performance; - hydraulic performance; - other factors affecting lining system selection. It does not cover the calculation methods used to determine, for each viable technique, the required amount of lining material needed to secure the desired performance of the renovated pipeline.
Klassifizierung von Kunststoff-Rohrleitungssystemen für die Renovierung und Informationen zur Planung (ISO 11295:2010)
Diese internationale Norm ist ein Leitfaden, der Technikfamilien zur Renovierung von drucklosen Rohrleitungen und Druckleitungen unter Verwendung von Kunststoffrohren, Formstücken und Zubehör festlegt.
Sie stellt einen Leitfaden für die Grundsätze zur Planung von Kunststoff-Rohrleitungssystemen, die als Lining-Systeme für bestehende Rohrleitungen eingesetzt werden, dar, liefert jedoch keine ausführliche Methodik dazu, und beinhaltet Folgendes:
Funktionen des Liners;
Zustand der bestehenden Rohrleitung und Gegebenheiten auf der Baustelle;
verfahrenstechnische Gesichtspunkte;
baustatische Gesichtspunkte;
hydraulische Gesichtspunkte.
Sie legt keine Berechnungsverfahren zur Bestimmung der für die Sicherstellung der gewünschten Leistung der renovierten Rohrleitung erforderlichen Menge von Lining-Werkstoffen für jedes einzelne durchführbare Verfahren fest.
Classification et informations relatives à la conception des systèmes de canalisations en plastique destinés à la rénovation (ISO 11295:2010)
L'ISO 11295:2010 définit et décrit les familles de techniques de rénovation des canalisations sans pression et sous pression au moyen de tuyaux (ou tubes), de raccords et d'accessoires en plastique. Pour chaque famille de technique, elle identifie des zones d'application à partir de la gamme couverte par les normes produits traitant de rénovation déjà existantes, ce qui comprend les branchements et les collecteurs d'assainissement enterrés et les réseaux souterrains d'alimentation en eau et en gaz.
L'ISO 11295:2010 fournit des indications sur les principes, mais pas les méthodologies détaillées, pour la conception des systèmes de canalisations en plastique appliqués à la rénovation de canalisations existantes.
Razvrščanje in informacije o projektiranju cevnih sistemov iz polimernih materialov za sanacijo (ISO 11295:2010)
Ta mednarodni standard opredeljuje in opisuje družine tehnik za sanacijo netlačnih in tlačnih cevovodov z uporabo polimernih cevi, fitingov in pomožnih sestavnih delov. Za vsako družino tehnik določa področja uporabe iz obstoječih standardov za sanacijske proizvode, ki vključujejo podzemno odvodnjavanje in kanalizacijo ter omrežja za podzemno oskrbo z vodo in plinom. Ta mednarodni standard zagotavlja informacije o načelih, a ne o podrobnih metodologijah, zasnove polimernih cevnih sistemov, ki se uporabljajo kot obloge za obstoječe cevovode, in zajema: - obstoječe stanje cevovodov in lokacije; - delovanje sistemov oblog; - strukturno delovanje; - hidravlično delovanje; - druge dejavnike, ki vplivajo na izbor sistema oblog. Ne zajema metod za izračunavanje, ki se pri vsaki izvedljivi tehniki uporabljajo za določanje zahtevane količine materiala za obloge, ki je potreben za zagotavljanje želene učinkovitosti saniranega cevovoda.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 11295:2010
01-junij-2010
1DGRPHãþD
SIST EN 13689:2003
5D]YUãþDQMHLQLQIRUPDFLMHRSURMHNWLUDQMXFHYQLKVLVWHPRYL]SROLPHUQLK
PDWHULDORY]DVDQDFLMR ,62
Classification and information on design of plastics piping systems used for renovation
(ISO 11295:2010)
Klassifizierung von Kunststoff-Rohrleitungssystemen für die Renovierung und
Informationen zur Planung (ISO 11295:2010)
Classification et informations relatives à la conception des systèmes de canalisations en
plastique destinés à la rénovation (ISO 11295:2010)
Ta slovenski standard je istoveten z: EN ISO 11295:2010
ICS:
23.040.01 Deli cevovodov in cevovodi Pipeline components and
na splošno pipelines in general
SIST EN ISO 11295:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 11295:2010
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SIST EN ISO 11295:2010
EUROPEAN STANDARD
EN ISO 11295
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2010
ICS 23.040.01 Supersedes EN 13689:2002
English Version
Classification and information on design of plastics piping
systems used for renovation (ISO 11295:2010)
Classification et informations relatives à la conception des Leitfaden zur Klassifizierung und Planung von Kunststoff-
systèmes de canalisations en plastique destinés à la Rohrleitungssystemen für Renovierung (ISO 11295:2010)
rénovation (ISO 11295:2010)
This European Standard was approved by CEN on 6 February 2010.
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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11295:2010: E
worldwide for CEN national Members.
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SIST EN ISO 11295:2010
EN ISO 11295:2010 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 11295:2010
EN ISO 11295:2010 (E)
Foreword
This document (EN ISO 11295:2010) has been prepared by Technical Committee ISO/TC 138 "Plastics pipes,
fittings and valves for the transport of fluids" in collaboration with Technical Committee CEN/TC 155 “Plastics
piping systems and ducting systems”, the secretariat of which is held by NEN.
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 September 2010, and conflicting national standards shall be
withdrawn at the latest by September 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 13689:2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 11295:2010 has been approved by CEN as a EN ISO 11295:2010 without any modification.
3
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SIST EN ISO 11295:2010
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SIST EN ISO 11295:2010
INTERNATIONAL ISO
STANDARD 11295
First edition
2010-03-01
Classification and information on design
of plastics piping systems used for
renovation
Classification et informations relatives à la conception des systèmes
de canalisations en plastique destinés à la rénovation
Reference number
ISO 11295:2010(E)
©
ISO 2010
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
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All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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Published in Switzerland
ii © ISO 2010 – All rights reserved
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Abbreviated terms .3
5 Classification of renovation techniques .3
5.1 General .3
5.2 Lining with continuous pipes.4
5.3 Lining with close-fit pipes .6
5.4 Lining with cured-in-place pipes .8
5.5 Lining with discrete pipes .10
5.6 Lining with adhesive-backed hoses .12
5.7 Lining with spirally-wound pipes.13
6 Information on design.14
6.1 General .14
6.2 Condition assessment .15
6.3 Lining system functions .16
6.4 Performance criteria.17
6.5 Other factors affecting lining system selection .20
Annex A (informative) Process-related aspects .22
Bibliography.28
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 11295 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the
transport of fluids.
This first edition of ISO 11295 cancels and replaces ISO/TR 11295:1992.
iv © ISO 2010 – All rights reserved
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
Introduction
This International Standard classifies the techniques used for the renovation of existing pipelines and gives
information on the design of plastics piping systems used for such renovation.
Over the past 25 years, the rehabilitation of pipeline systems has become increasingly important.
Pipeline systems are continuously required to satisfy physical, chemical, biochemical and biological demands.
These demands depend on planning, material, construction, type and period of use.
When pipeline systems become operational, proper system management has to be put in place. In addition to
inspection and cleaning, rehabilitation of the pipeline can be required. Rehabilitation is carried out when there
is need for restoration or upgrading of the pipeline system in terms of its performance. Rehabilitation can
consist of repair, renovation or replacement.
To coincide with the publication of ISO product standards for various families of renovation techniques in three
different application areas, the need to upgrade ISO/TR 11295 to a full International Standard was recognized,
and, at the same time, focus on renovation.
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SIST EN ISO 11295:2010
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SIST EN ISO 11295:2010
INTERNATIONAL STANDARD ISO 11295:2010(E)
Classification and information on design of plastics piping
systems used for renovation
1 Scope
This International Standard defines and describes families of techniques for the renovation of non-pressure
and pressure pipelines through the use of plastics pipes, fittings and ancillary components. For each
technique family, it identifies areas of application from the range covered by existing renovation product
standards, which include underground drainage and sewerage, and underground water and gas supply
networks.
This International Standard provides information on the principles of, but not the detailed methodologies for,
the design of plastics piping systems applied as linings to existing pipelines, covering:
⎯ existing pipeline and site conditions;
⎯ lining system functions;
⎯ structural performance;
⎯ hydraulic performance;
⎯ other factors affecting lining system selection.
It does not cover the calculation methods used to determine, for each viable technique, the required amount of
lining material needed to secure the desired performance of the renovated pipeline.
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 1043-1, Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special
characteristics
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1043-1 and the following apply.
NOTE For ease of reference, see Clause 5 for definitions of the following individual technique families reproduced
from other International Standards:
⎯ lining with continuous pipes;
⎯ lining with close-fit pipes;
⎯ lining with cured-in-place pipes;
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
⎯ lining with discrete pipes;
⎯ lining with adhesive-backed hoses;
⎯ lining with spirally-wound pipes.
3.1
lining pipe
pipe inserted for renovation purposes
3.2
liner
lining pipe after installation
3.3
lining system
lining pipe and all relevant fittings inserted into an existing pipeline for the purposes of renovation
3.4
maintenance
keeping an existing pipeline system operational without the installation of additional fabric
3.5
rehabilitation
all measures for restoring or upgrading the performance of an existing pipeline system
3.6
renovation
work incorporating all or part of the original fabric of the pipeline, by means of which its current performance is
improved
3.7
repair
rectification of local damage
3.8
replacement
rehabilitation of an existing pipeline system by the installation of a new pipeline system, without incorporating
the original fabric
3.9
technique family
grouping of renovation techniques which are considered to have common characteristics for standardization
purposes
3.10
independent pressure pipe liner
liner capable on its own of resisting without failure all applicable internal loads throughout its design life
3.11
interactive pressure pipe liner
liner which relies on the existing pipeline for some measure of radial support in order to resist without failure
all applicable internal loads throughout its design life
3.12
fully structural rehabilitation
renovation using an independent pressure pipe liner
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
3.13
semi-structural rehabilitation
renovation using an interactive pressure pipe liner which is capable of long-term hole and gap spanning at
operational pressure
4 Abbreviated terms
EP Epoxy resin
GRP Glass-reinforced thermosetting plastics
PA Polyamide
PAN Polyacrylonitrile
PE Polyethylene
PE-X Cross-linked polyethylene
PEN Poly(ethylene naphthate)
PET Poly(ethylene teraphthalate)
PP Polypropylene
PRP Polyester-reinforced PE
PUR Polyurethane
PVC-U Unplasticized poly(vinyl chloride)
UP Unsaturated polyester resin
VE Vinyl ester resin
5 Classification of renovation techniques
5.1 General
This clause establishes a classification of the techniques used for the renovation of continuous lengths of
existing pipeline usually between two or more access points.
Renovation techniques within the scope of this International Standard are classified in Figure 1.
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
a
This International Standard is applicable.
Figure 1 — Renovation technique families using plastics pipes defined in the overall context
of rehabilitation of pipeline systems
In 5.2 to 5.7, the different renovation technique families are defined and associated materials and areas of
application, which are the subject of existing or foreseen product standards, are identified. In addition, certain
general characteristics of each renovation technique family are described.
NOTE 1 The pipe materials listed in 5.2 to 5.7 reflect the state-of-the-art in the technique families on the date of
publication of this International Standard. Not all technique families/material-combinations are covered by a renovation
product standard. The Bibliography gives relevant available standards.
NOTE 2 The application areas covered by existing renovation product standards include underground drainage and
sewerage, and underground water and gas supply networks. This International Standard is not applicable to other possible
areas of application of the technique families described.
5.2 Lining with continuous pipes
Lining with continuous pipes is defined as lining with pipes made continuous prior to insertion; the
cross-section of the lining pipe remains unchanged (see Figure 2).
NOTE This is often referred to as sliplining.
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
Figure 2 — Schematic representation of lining with continuous pipes
a) ISO 11296-1 and EN 13566-2;
Relevant existing
b) ISO 11298-1;
International Standard(s):
c) ISO 11299-1.
Materials: PE, PE-X and PP.
Applications: Pressure pipes and non-pressure pipes (applicable to all areas).
Geometric capabilities: a) typical minimum size: 100 mm;
b) typical maximum size: 2 000 mm;
c) typical maximum length: 300 m;
d) capability of accommodating bends, depending on technique.
Performance: a) reduction in hydraulic capacity significant;
b) fully structural rehabilitation is possible.
Installation characteristics: a) pipes manufactured or prior assembled into the continuous length
required;
b) insertion possible by pushing and/or pulling;
c) surface working space
⎯ small diameters: can be supplied on coils, small space, and
⎯ larger diameters: supplied in straight lengths requiring greater storage
and working space;
d) access to the existing pipeline: generally requires local excavation;
e) technique does not rely on adhesion to host pipe;
f) flow diversion is typically required for installation and grouting;
g) the annular space may be grouted, at least in non-pressure applications, to
fix line and level and/or prevent subsequent movement;
h) live insertion is possible (but drinking water applications excluded for
hygiene reasons);
i) reconnection of laterals/services: generally requires excavation.
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
5.3 Lining with close-fit pipes
Lining with close-fit pipes is defined as lining with a continuous pipe for which the cross-section is reduced to
facilitate installation and reverted after installation to provide a close fit to the existing pipe (see Figure 3).
NOTE For the reduction in cross-section, the following are the two options:
a) reduction in the pipe manufacturing plant: the pipe is usually supplied coiled on a reel from which it is directly
inserted;
b) reduction on site: the pipe is usually fed through the reduction equipment and simultaneously inserted in one
continuous string.
a) Installation of a pipe reduced in cross-section in the pipe manufacturing plant
b) Installation of a pipe reduced in cross-section on site
Key
1 device for reducing cross-section
a
Direction of feed (by pulling) of lining pipe into the host pipe.
b
Pressure applied for reversion.
Figure 3 — Schematic representations of lining with close-fit pipes
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
Relevant existing International a) ISO 11296-1 and ISO 11296-3;
Standard(s):
b) ISO 11298-1 and ISO 11298-3;
c) ISO 11299-1 and ISO 11299-3.
Materials: PE, PE-X, PP, PRP and PVC-U.
Applications: Pressure pipes and non-pressure pipes (applicable to all areas).
Geometric capabilities: a) shape
⎯ circular, and
⎯ non-circular shapes are possible;
b) typical minimum size: 75 mm;
c) typical maximum size
⎯ factory reduced: 500 mm, and
⎯ site reduced: 1 500 mm;
d) typical maximum length: 500 m;
e) capability of accommodating substantial bends, depending on technique.
Performance: a) minimal reduction in capacity; increase in flow possible;
b) fully structural rehabilitation possible.
Installation characteristics: a) lining pipe first reduced in size by mechanical or thermo-mechanical
means (in the manufacturing plant or on site), inserted and then reverted
by relief of installation forces or application of heat and/or pressure;
b) surface working space for
⎯ factory-reduced pipe: no particular constraint, and
⎯ site-reduced pipe: larger diameters supplied in straight lengths
require greater storage and working space;
c) access for
⎯ factory-reduced pipe: typically through existing access chambers,
where applicable, and
⎯ site-reduced pipe: requires local excavation;
d) technique does not rely on adhesion to host pipe;
e) flow interruption/diversion typically required;
f) no grouting required;
g) reconnection of laterals/services for
⎯ gravity pipelines: possible from inside (re-opening and tight
connection), and
⎯ pressure applications: generally requires excavation.
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
5.4 Lining with cured-in-place pipes
Lining with cured-in-place pipes is defined as lining with a flexible tube impregnated with a thermosetting resin,
which produces a pipe after resin cure (see Figure 4).
a) Installation by inversion
a
Pressure applied for inversion.
b
Pulling force.
b) Winched-in-place installation
Figure 4 — Schematic representation of lining with cured-in-place pipes
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
Relevant existing International a) ISO 11296-1 and ISO 11296-4;
Standard(s):
b) ISO 11298-1;
c) ISO 11299-1.
Materials: A composite consisting of a reinforced or unreinforced fabric carrier
material impregnated with thermosetting resin (UP, EP or VE), which can
include optional internal and/or external membranes. For details, see the
relevant standard.
Applications: Pressure pipes and non-pressure pipes (drains and sewers, water).
Geometric capabilities: a) non-circular shapes are possible;
b) typical minimum size: 125 mm;
c) typical maximum size: 2 800 mm;
d) typical maximum length: 100 m to 600 m (technique-dependent);
e) capability of accommodating substantial bends, depending on technique.
Performance: a) minimal reduction in capacity; increase in flow possible;
b) fully structural rehabilitation possible.
Installation characteristics: a) insertion of the impregnated tube, prior to curing, can be achieved by
either
⎯ winching into place and then inflating,
⎯ inverting into position with fluid pressure only (water or air), or
⎯ winching one tube into place and then inflating with a second,
inverted, tube;
b) the curing process can be initiated or accelerated by either
⎯ ambient temperature,
⎯ heat (hot water, steam or electrical heating elements), or
⎯ UV radiation;
c) surface working space generally minimal, increases for long lengths in
largest sizes;
d) entry via existing manhole or small excavation possible;
e) structural effect does not rely on adhesion to host pipe;
f) flow interruption/diversion typically required;
g) grouting of annular space not necessary;
h) re-opening of laterals/services from inside is possible;
i) creation of a tight connection from inside is possible.
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
5.5 Lining with discrete pipes
Lining with discrete pipes is defined as lining with pipes shorter than the section to be renovated, which are
jointed to form a continuous pipe only during insertion (see Figure 5).
a) Installation by pushing
b) Installation by pulling
c) Installation by individual pipe placement (typically man-entry only)
Figure 5 — Schematic representation of lining with discrete pipes
NOTE In the following lists, the installation methods illustrated by Figures 5 a), 5 b) and 5 c) are referred to simply as
method a), method b) and method c), respectively.
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
Relevant existing International a) ISO 11296-1;
Standard(s):
b) ISO 11298-1.
Materials: PE, PP, PVC-U and GRP.
Applications: Pressure pipes and non-pressure pipes (drains and sewers, water).
Geometric capabilities: a) non-circular cross-sectional shapes possible;
b) typical minimum size
⎯ methods a) and b): 100 mm;
⎯ method c): 800 mm;
c) typical maximum size
⎯ methods a) and b): 600 mm;
⎯ method c): 4 000 mm;
d) typical maximum length: 150 m;
e) bends
⎯ methods a) and b): bends can generally not be accommodated;
⎯ method c): bends with large radii can be accommodated.
Performance: a) reduction in hydraulic capacity significant;
b) gradient can be restored using individual pipe placement [method c)];
c) fully structural rehabilitation is possible.
Installation characteristics: a) the type of joint is a significant feature of each technique;
b) pipe joints can be locked (end-load-bearing);
c) surface working space: no particular constraint;
d) short pipe lengths may allow insertion from existing access chambers,
otherwise local excavation required;
e) technique does not rely on adhesion to host pipe;
f) flow interruption/diversion typically required (also for grouting);
g) the annular space is typically grouted;
h) reconnection of laterals/services: generally requires excavation.
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SIST EN ISO 11295:2010
ISO 11295:2010(E)
5.6 Lining with adhesive-backed hoses
Lining with adhesive-backed hoses is defined as lining with a reinforced hose which relies on an adhesive
bond to the host pipe to provide resistance to collapse (see Figure 6).
Figure 6 — Schematic representation of lining with adhesive-backed hoses
Relevant existing a) ISO 11298-1;
International Standard(s):
b) ISO 11299-1.
Materials: A circular woven hose of PA, PAN, PEN and/or PET fibres, coated on one
side with a thermoplastic (e.g. PE) barrier layer and on the other with a
thermosetting resin (EP).
Applications: Pressure pipes (water and gas).
Geometric capabilities: a) typical minimum size: 50 mm;
b) typical maximum size: 1 500 mm;
c) typical maximum length: 150 m;
d) bends can be accommodated.
Performance: a) minimal reduction in capacity; increase in flow possible;
b) only semi-structural rehabilitation is possible.
Installation characteristics: a) insertion of the adhesive-backed hose by inversion with air (heat curing of
adhesive with steam);
b) surface working space generally minimal;
c) structural effect relies on adhesion to host pipe;
d) flow interruption/diversion typically required;
e) re-opening of services from inside is possible;
f) creation of a tight connection from inside is possible.
12 © ISO 2010 – All r
...
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