SIST EN 17176-2:2019
(Main)Plastics piping systems for water supply and for buried and above ground drainage, sewerage and irrigation under pressure - Oriented unplasticized poly(vinyl chloride) (PVC-O) - Part 2: Pipes
Plastics piping systems for water supply and for buried and above ground drainage, sewerage and irrigation under pressure - Oriented unplasticized poly(vinyl chloride) (PVC-O) - Part 2: Pipes
This part of prEN 17176 specifies the characteristics of solid-wall pipes made from oriented unplasticized poly(vinyl chloride) (PVC-O) for piping systems intended for water supply and for buried and above-ground drainage, sewerage, treated waste water and irrigation under pressure.
It also specifies the test parameters for the test methods referred to this part of prEN 17176.
In conjunction with prEN 17176-1 and prEN 17176-5, it is applicable to oriented PVC-O pipes with or without integral socket intended to be used for the following:
a) water mains and services lines;
b) conveyance of water for both outside and inside buildings;
c) drainage, sewerage and treated waste water under pressure.
d) irrigation under pressure
It is applicable to piping systems intended for the supply of water under pressure up to and including 25 °C (cold water) intended for human consumption and for general purposes as well as for waste water and water for irrigation under pressure.
This part of prEN 17176 specifies pipes for the conveyance of water, waste water and water for irrigation up to and including 45 °C. For temperatures between 25 °C and 45 °C, EN ISO 1452-2:2009, Figure C.1 applies.
This part of prEN 17176 specifies a range of pipe sizes and pressure classes and gives requirements concerning colours.
The piping system according to this European Standard is intended for the conveyance of cold water up to pressures of 25 bars ) and especially in those applications where special performance requirements are needed, such as impact loads and pressure fluctuations, up to pressure of 25 bars.
NOTE It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.
Kunststoff-Rohrleitungssysteme für die Wasserversorgung und für erdverlegte und nicht erdverlegte Entwässerungs-, Abwasser- und Bewässerungsdruckleitungen - Orientiertes weichmacherfreies Polyvinylchlorid (PVC-O) - Teil 2: Rohre
Dieser Teil von prEN 17176 legt die Eigenschaften von vollwandigen Rohren aus orientiertem weichmacher¬freiem Polyvinylchlorid (PVC O) für Rohrleitungssysteme fest, die für die Wasserversorgung und für erdverlegte und nicht erdverlegte Entwässerungs und Abwasserdruckleitungen, Druckleitungen für behandeltes Abwasser und Bewässerungsdruckleitungen vorgesehen sind.
Er legt außerdem die Prüfparameter für die Prüfverfahren fest, auf die in diesem Teil von prEN 17176 verwiesen wird.
Zusammen mit prEN 17176-1 und prEN 17176-5 gilt er für orientierte PVC O Rohre mit oder ohne angeformte Muffe, die für folgende Anwendungsgebiete vorgesehen sind:
a) Versorgungs und Hausanschlussleitungen;
b) Transport von Wasser sowohl außerhalb als auch innerhalb von Gebäuden;
c) Entwässerung, Abwasser und behandeltes Abwasser unter Druck;
d) Bewässerung unter Druck.
Er ist anwendbar auf Rohrleitungssysteme, die für die Versorgung mit Wasser unter Druck bis einschließlich 25 °C (Kaltwasser) für den menschlichen Gebrauch und für allgemeine Zwecke sowie für Abwasser und Wasser zur Bewässerung unter Druck vorgesehen sind.
Dieser Teil von prEN 17176 enthält Festlegungen für Rohre zum Transport von Wasser, Abwasser und Wasser zur Bewässerung bis einschließlich 45 °C. Für Temperaturen zwischen 25 °C und 45 °C gilt EN ISO 1452-2:2009, Bild C.1.
Dieser Teil von prEN 17176 enthält Festlegungen für Rohrgrößen und Druckklassen und legt Anforderungen an die Einfärbung fest.
Das Rohrleitungssystem nach dieser Europäischen Norm ist für den Transport von Kaltwasser mit Drücken von bis zu 25 bar vorgesehen, und besonders bei solchen Anwendungen, bei denen besondere Leistungs-anforderungen gelten, wie z. B. Stoßbelastungen und Druckschwankungen, bis zu einem Druck von 25 bar.
ANMERKUNG Der Käufer oder Auftraggeber ist unter Berücksichtigung der eigenen Anforderungen sowie der geltenden nationalen Verordnungen und Verlegeverfahren oder vorschriften für die entsprechende Auswahl dieser Eigenschaften verantwortlich.
Systèmes de canalisations en plastique pour l’alimentation en eau, les branchements et collecteurs d’assainissement et les systèmes d’irrigation sous pression, enterrés ou aériens - Poly(chlorure de vinyle) non plastifié orienté (PVC-O) - Partie 2 : Tubes
La présente partie de la prEN 17176 spécifie les caractéristiques des tubes à paroi compacte en poly(chlorure de vinyle) non plastifié orienté (PVC O) pour les systèmes de canalisations destinés à l’alimentation en eau, aux branchements et collecteurs d’assainissement, aux systèmes d’eaux usées traitées et aux systèmes d’irrigation sous pression, enterrés ou aériens.
Elle spécifie également les paramètres d’essai pour les méthodes d’essai référencées dans la présente partie de la prEN 17176.
Conjointement avec la prEN 17176-1 et la prEN 17176-5, elle s’applique aux tubes en PVC O orienté, avec ou sans emboîture intégrée, destinés à être utilisés pour les usages suivants :
a) les conduites principales et les conduites de branchement ;
b) le transport de l’eau à l’extérieur et à l’intérieur des bâtiments ;
c) les branchements et collecteurs d’assainissement et les systèmes d’eaux usées traitées sous pression ;
d) l’irrigation sous pression.
Elle s’applique aux systèmes de canalisations utilisés pour l’alimentation en eau sous pression jusqu’à 25 °C (eau froide) inclus, destinée à la consommation humaine et à des usages généraux, mais aussi aux eaux usées et à l’eau pour l’irrigation sous pression.
La présente partie de la prEN 17176 spécifie les tubes pour le transport de l’eau, des eaux usées et de l’eau pour l’irrigation jusqu’à 45 °C inclus. Pour des températures comprises entre 25 °C et 45 °C, l’EN ISO 1452-2:2009, Figure C.1 s’applique.
La présente partie de la prEN 17176 spécifie une série de dimensions de tubes et de classes de pression et donne des exigences concernant les couleurs.
Le système de canalisations conforme à la présente Norme européenne est destiné au transport d’eau froide jusqu’à des pressions de 25 bar, notamment pour les applications dans lesquelles des exigences de performance spéciales sont nécessaires, par exemple en cas de charges dynamiques et de fluctuations de la pression, jusqu’à une pression de 25 bar.
NOTE Il est de la responsabilité de l’acheteur ou du prescripteur d’effectuer les choix appropriés à partir de ces données, en tenant compte des exigences particulières et de toute réglementation nationale applicable ainsi que des pratiques ou codes de pose.
Cevni sistemi iz polimernih materialov za oskrbo z vodo in za podzemne in nadzemne sisteme odvodnjavanja, kanalizacije ter namakanja pod tlakom - Orientiran nemehčan polivinilklorid (PVC-O) - 2. del: Cevi
Ta del standarda prEN 17176 določa lastnosti trde cevi iz orientiranega nemehčanega polivinilklorida (PVC-O) za cevne sisteme za oskrbo z vodo in za podzemne in nadzemne sisteme odvodnjavanja, kanalizacije, očiščene odpadne vode ter namakanja pod tlakom.
Določa tudi preskusne parametre za preskusne metode iz tega dela standarda prEN 17176.
V povezavi s standardoma prEN 17176-1 in prEN 17176-5 se uporablja za cevi iz orientiranega nemehčanega polivinilklorida z ali brez obglavka, ki se uporabljajo za:
a) vodovod in priključke na vodovod;
b) prenos vode zunaj in znotraj stavb;
c) odvodnjavanje, kanalizacijo in čiščenje odpadne vode pod tlakom;
d) namakanje pod tlakom.
Uporablja se za cevni sistem, namenjen dovajanju vode pod tlakom do vključno 25 °C (hladna voda), ki je namenjena za pitje in za splošne namene ter tudi za odpadne vode in vode za namakanje pod tlakom.
Ta del standarda prEN 17176 določa cevi za prenos vode, odpadne vode in vode za namakanje s temperaturo do vključno 45 °C. Za temperature med 25 °C in 45 °C se uporablja slika C.1 iz standarda EN ISO 1452-2:2009.
Ta del standarda prEN 17176 določa razpon velikosti cevi ter tlačnih razredov in podaja zahteve o barvah.
Cevni sistem je v skladu s tem evropskim standardom namenjen za prenos hladne vode z največjim tlakom do 25 barov in predvsem v namene, ko so potrebne posebne zahteve, kot so udarne obremenitve in nihanje tlaka, z največjim tlakom do 25 barov.
OPOMBA: Za ustrezno izbiro teh vidikov je odgovoren kupec ali projektant, pri čemer mora upoštevati posebne zahteve ter vse pomembne nacionalne predpise in prakse ali kodekse vgradnje.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 17176-2:2019
01-julij-2019
Cevni sistemi iz polimernih materialov za oskrbo z vodo in za podzemne in
nadzemne sisteme odvodnjavanja, kanalizacije ter namakanja pod tlakom -
Orientiran nemehčan polivinilklorid (PVC-O) - 2. del: Cevi
Plastics piping systems for water supply and for buried and above ground drainage,
sewerage and irrigation under pressure - Oriented unplasticized poly(vinyl chloride)
(PVC-O) - Part 2: Pipes
Kunststoff-Rohrleitungssysteme für die Wasserversorgung und für erdverlegte und nicht
erdverlegte Entwässerungs-, Abwasser- und Bewässerungsdruckleitungen - Orientiertes
weichmacherfreies Polyvinylchlorid (PVC-O) - Teil 2: Rohre
Systèmes de canalisations en plastique pour l’alimentation en eau, les branchements et
collecteurs d’assainissement et les systèmes d’irrigation sous pression, enterrés ou
aériens - Poly(chlorure de vinyle) non plastifié orienté (PVC-O) - Partie 2 : Tubes
Ta slovenski standard je istoveten z: EN 17176-2:2019
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
91.140.80 Drenažni sistemi Drainage systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
SIST EN 17176-2:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 17176-2:2019
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SIST EN 17176-2:2019
EN 17176-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2019
EUROPÄISCHE NORM
ICS 23.040.20
English Version
Plastics piping systems for water supply and for buried
and above ground drainage, sewerage and irrigation under
pressure - Oriented unplasticized poly(vinyl chloride)
(PVC-O) - Part 2: Pipes
Systèmes de canalisations en plastique pour Kunststoff-Rohrleitungssysteme für die
l'alimentation en eau, les branchements et collecteurs Wasserversorgung und für erdverlegte und nicht
d'assainissement et les systèmes d'irrigation sous erdverlegte Entwässerungs-, Abwasser- und
pression, enterrés ou aériens - Poly(chlorure de vinyle) Bewässerungsdruckleitungen - Orientiertes
non plastifié orienté (PVC-O) - Partie 2 : Tubes weichmacherfreies Polyvinylchlorid (PVC-O) - Teil 2:
Rohre
This European Standard was approved by CEN on 14 January 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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 17176-2:2019 E
worldwide for CEN national Members.
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Symbols . 8
5 Material . 8
5.1 General . 8
5.2 Density . 8
5.3 MRS class . 8
5.4 Orientation factor . 9
6 General characteristics . 9
6.1 Appearance . 9
6.2 Colour . 9
6.3 Opacity . 9
6.4 Classification of pipes . 10
6.4.1 Classification . 10
6.4.2 Calculation of wall thickness . 10
7 Geometrical characteristics . 10
7.1 Measurement of dimensions . 10
7.2 Length of pipes . 10
7.3 Nominal outside diameters and wall thicknesses . 11
7.4 Pipes with integral sockets with elastomeric sealing ring type . 13
7.5 Pipe ends with integral sockets with solvent cement joints . 14
7.6 Plain ends . 14
8 Selection of pipes. 14
8.1 Selection of nominal pressure and pipe series S for water up to and including 25 °C . 14
8.2 Determination of the allowable operating pressure for water up to 45 °C . 14
9 Mechanical characteristics . 15
9.1 Resistance to hydrostatic pressure . 15
9.1.1 General . 15
9.1.2 Pipes . 17
9.1.3 Pipes with integral sockets . 17
9.2 Impact strength . 17
9.3 Ring stiffness . 18
10 Physical characteristics . 18
11 Sealing rings . 19
12 Adhesives . 19
13 Marking . 20
13.1 General . 20
13.2 Minimum required marking . 20
2
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EN 17176-2:2019 (E)
13.3 Additional marking . 20
Annex A (normative) Establishment of the pipe material classification . 21
A.1 General . 21
A.2 Determination of pipe material classification . 21
A.2.1 Procedure . 21
A.2.2 Classified feedstock material . 21
A.2.3 Not classified feedstock material . 21
Annex B (normative) Minimum depth of engagement of sockets . 22
B.1 General . 22
B.2 Calculation of depth of engagement . 22
Annex C (normative) Temperature derating factor . 25
Annex D (informative) Calculation of negative pressure capability of pipes . 26
D.1 Negative pressure capability of pipes . 26
Annex E (normative) Determination of axial and circumferential orientation factor . 27
E.1 Principle . 27
E.2 Method . 27
E.3 Test parameters . 27
E.4 Test procedure . 27
Bibliography . 29
3
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
European foreword
This document (EN 17176-2:2019) has been prepared by 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 2019 and conflicting national standards shall
be withdrawn at the latest by September 2019.
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.
EN 17176 consists of the following parts, under the general title Plastics piping systems for water supply
and for buried and above ground drainage, sewerage and irrigation under pressure — Oriented
unplasticized poly(vinyl chloride) (PVC-O):
— Part 1: General;
— Part 2: Pipes (this document);
— Part 3: Fittings (Technical Specification);
— Part 5: Fitness for purpose of the system;
— Part 7: Guidance for assessment of conformity (in preparation).
For valves, see EN ISO 1452-4 [3].
Guidance for installation is given in ISO/TR 4191 [4].
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, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
4
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
Introduction
The System Standard, of which this is Part 2, specifies the requirements for a piping system made from
oriented unplasticized poly(vinyl chloride) (PVC-O) pipes and its components. The piping system is
intended to be used for water supply, pressurized drainage, sewerage, treated waste water and irrigation
systems to be used underground or above ground where protected from direct sunlight.
In respect of potential adverse effects on the quality of water intended for human consumption, caused
by the products covered by this part of EN 17176, the following is relevant:
a) This part of EN 17176 provides no information as to whether or not the products can be used without
restriction.
b) Existing national regulations concerning the use and/or the characteristics of these products remain
in force.
Requirements and test methods for PVC-O components are specified in EN 17176-1 and
CEN/TS 17176-3. For other components (not manufactured from PVC-O) reference is made to the
following standards: EN ISO 1452-3 (PVC-U) [2] and EN 12842 (Cast Iron) [1]. Characteristics for fitness
for purpose (mainly for joints) are established in EN 17176-5.
This part of EN 17176 specifies the characteristics of PVC-O pipes.
5
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
1 Scope
This part of EN 17176 specifies the characteristics of solid-wall pipes made of oriented unplasticized
poly(vinyl chloride) (PVC-O) for piping systems intended for water supply and for buried drainage,
sewerage, treated waste water and irrigation under pressure or above-ground where protected from
direct sunlight. It also specifies the test parameters for the test methods referred to in this document.
In conjunction with EN 17176-1 and EN 17176-5, it is applicable to oriented PVC-O pipes with or without
integral socket intended to be used for the following:
a) water mains and services lines;
b) conveyance of water for both outside and inside buildings;
c) drainage, sewerage and treated waste water under pressure;
d) irrigation under pressure.
It is applicable to piping systems intended for the supply of water with a maximum allowable operating
1)
pressure (PFA) up to and including 25 bar . The piping system according to this document is intended
for the conveyance of cold water up to and including 45 °C and especially in those applications where
special performance requirements are needed, such as impact loads and pressure fluctuations.
For temperatures between 25 °C and 45 °C, Figure C.1 of this document applies.
This part of EN 17176 specifies a range of pipe sizes and pressure classes and gives a requirement and
recommendations concerning colours.
NOTE It is the responsibility of the purchaser or specifier to make the appropriate selections from these
aspects, taking into account their particular requirements and any relevant national regulations and installation
practices or codes.
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 681-1, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 14814, Adhesives for thermoplastic piping systems for fluids under pressure - Specifications
EN 17176-1:2019, Plastics piping systems for water supply and for buried and above ground drainage,
sewerage and irrigation under pressure — Oriented unplasticized poly(vinyl chloride) (PVC-O) — Part 1:
General
EN 17176-5, Plastic piping systems for water supply and for buried and above ground drainage, sewerage
and irrigation under pressure — Oriented unplasticized poly(vinyl chloride) (PVC-O) — Part 5: Fitness for
purpose of the system
5 2
1) 1 bar = 0,1 MPa = 10 Pa; 1 MPa = 1 N/mm .
6
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
EN ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 1: General method (ISO 1167-1)
EN ISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 2: Preparation of pipe test pieces (ISO 1167-2)
EN ISO 1183-1, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion
method, liquid pyknometer method and titration method (ISO 1183-1)
EN ISO 1452-2:2009, Plastics piping systems for water supply and for buried and above-ground drainage
and sewerage under pressure — Unplasticized poly(vinyl chloride) (PVC-U) — Part 2: Pipes (ISO 1452-
2:2009)
EN ISO 2505, Thermoplastics pipes — Longitudinal reversion — Test method and parameters (ISO 2505)
EN ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions (ISO 3126)
EN ISO 3127, Thermoplastics pipes — Determination of resistance to external blows — Round-the-clock
method (ISO 3127)
EN ISO 6259-1, Thermoplastics pipes — Determination of tensile properties — Part 1: General test method
(ISO 6259-1
EN ISO 7686, Plastics pipes and fittings — Determination of opacity (ISO 7686)
EN ISO 9080, Plastics piping and ducting systems — Determination of the long-term hydrostatic strength of
thermoplastics materials in pipe form by extrapolation (ISO 9080)
EN ISO 9311-1, Adhesives for thermoplastic piping systems — Part 1: Determination of film properties (ISO
9311-1)
EN ISO 9852, Unplasticized poly(vinyl chloride) (PVC-U) pipes — Dichloromethane resistance at specified
temperature (DCMT) — Test method (ISO 9852)
EN ISO 9969, Thermoplastics pipes — Determination of ring stiffness (ISO 9969)
EN ISO 12162, Thermoplastics materials for pipes and fittings for pressure applications — Classification,
designation and design coefficient (ISO 12162)
ISO 3, Preferred numbers — Series of preferred numbers
ISO 161-1, Thermoplastics pipes for the conveyance of fluids — Nominal outside diameters and nominal
pressures — Part 1: Metric series
ISO 2531, Ductile iron pipes, fittings, accessories and their joints for water applications
ISO 2507-1, Thermoplastics pipes and fittings — Vicat softening temperature — Part 1: General test
method
ISO 4065, Thermoplastics pipes — Universal wall thickness table
ISO 6259-2, Thermoplastics pipes — Determination of tensile properties — Part 2: Pipes made of
unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly (vinyl chloride) (PVC-C) and high-impact poly
(vinyl chloride) (PVC-HI)
7
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
ISO 7387-1, Adhesives with solvents for assembly of PVC-U pipe elements — Characterization — Part 1:
Basic test methods
ISO 11922-1:2018, Thermoplastics pipes for the conveyance of fluids — Dimensions and tolerances —
Part 1: Metric series
ISO 18373-1, Rigid PVC pipes — Differential scanning calorimetry (DSC) method — Part 1: Measurement
of the processing temperature
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 17176-1 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 http://www.iso.org/obp
4 Symbols
For the purposes of this document, the following symbols apply.
l is the length of socket (mm)
s
m is the depth of engagement (mm)
S is the calculated preferred value of the nominal S series number of the pipe from 6.4.2
o
β minimum angle chamfer
5 Material
5.1 General
The material from which the pipes are made shall conform to EN 17176-1 and to the requirements given
in 5.2 and 5.4.
5.2 Density
The density, ρ, at 23 °C of the pipe, when measured in accordance with EN ISO 1183-1, shall be within the
following limits:
3 3
1 350 kg/m < ρ < 1 460 kg/m
5.3 MRS class
Oriented pipes made from a defined PVC compound/formulation and with a well-defined orientation
level in circumferential and axial direction, shall be evaluated according to the procedures of Annex A.
The MRS value shall be classified in accordance with EN 17176-1.
The MRS class shall be declared by the manufacturer.
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EN 17176-2:2019 (E)
5.4 Orientation factor
The level of orientation, is an indirect parameter for the material classification of the pipes and is
depending of the production process.
The orientation factor, circumferential and axial shall be declared by the manufacturer and comply with
the minimum values as defined in Table 1.
The orientation factors shall be measured according to Annex E and specified by the manufacturer to be
within – 5 % and + 15 % deviation from the declared values.
Table1 — Minimum declared orientation factor
Minimum required
315 355 400 450 500
strength (MRS)
axial 1,0
circumferential 1,5 1,6 1,7 1,8 1,9
6 General characteristics
6.1 Appearance
When viewed without magnification the internal and external surfaces of pipes shall be smooth, clean
and free from scoring, cavities and other surface defects to an extent that would prevent conformity to
this part of EN 17176. The material shall not contain any impurities visible without magnification. The
ends of the pipe shall be cut cleanly and square to the axis of the pipe.
6.2 Colour
The colour of the pipes shall be uniform throughout the wall.
The preferred colour of pipes shall be as follows:
a) for water supply cream, blue, white or white with blue striping;
b) for irrigation under pressure blue or white;
c) for pressurized drainage and sewerage grey, brown or white with brown stripes;
d) for treated waste water purple.
NOTE Attention is drawn to the fact that the colouring of pipes for the supply of water for human consumption
can be part of national regulation.
6.3 Opacity
If a pipe is required to be opaque for use in above ground applications the wall of the pipe shall transmit
not more than 0,2 % of visible light falling on it when tested in accordance with EN ISO 7686.
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EN 17176-2:2019 (E)
6.4 Classification of pipes
6.4.1 Classification
Pipes shall be classified to their nominal pressure PN.
The nominal pressure PN, the pipe series S and the design stress, σ , are connected by the following
s
relationship:
10σ
s
PN≅ (1)
S
SDR− 1
S= (2)
2
d
n
SDR= (3)
e
n
MRS
σ = (4)
s
C
6.4.2 Calculation of wall thickness
The relationship between the nominal wall thickness e and the nominal outside diameter d is specified
n n
in ISO 4065. The values for nominal pipe wall thickness e for nominal pressure ratings PN, can be
n
calculated by substituting the values for MRS, C, and d in the formula:
n
d
n
e = (5)
n
21S +
o
Values shall be rounded to one decimal place according to the rules of ISO 4065.
Nominal S numbers and their calculated values are given in ISO 4065 for the R10 series of preferred
numbers. For the R20 series required for this European Standard, refer to ISO 3.
The nominal outside diameter and nominal wall thickness for the relevant nominal pressure and material
classes are specified in Table 3.
7 Geometrical characteristics
7.1 Measurement of dimensions
Dimensions shall be measured in accordance with EN ISO 3126.
7.2 Length of pipes
It is recommended to supply pipes in one or more of the following lengths: 3 m, 5 m, 6 m, 10 m or 12 m,
where these lengths do not include the depth of any integral socket(s). Other lengths are subject to
agreement between the manufacturer and the purchaser.
The tolerance on length, including sockets, is specified in Table 2.
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
Table 2 — Tolerance on length
Pipe length Tolerance on length
≤ 5 m ±1 %
> 5 m ±0,05 m
7.3 Nominal outside diameters and wall thicknesses
The nominal outside diameter of pipes in accordance with ISO 161-1, and the corresponding wall
thickness shall be selected from Table 3 as appropriate for size, nominal pressure and pipe material class.
The tolerances on mean outside diameters shall be in accordance with ISO 11922-1:2018, grade C. For
other outside diameters not mentioned in ISO 11922-1, the tolerance shall be calculated according to
0,003d rounded to the nearest 0,1 mm with a minimum value of 0,3 mm.
n
The nominal wall thickness shall comply with the minimum values given in Table 3.
The mean wall thickness shall be declared by the manufacturer.
The tolerances on the mean wall thickness shall be in accordance with ISO 11922-1:2018, grade W,
otherwise they shall be specified by the manufacturer. For other wall thicknesses the tolerance can be
calculated according to the formula (0,1 × e + 0,2) mm rounded up to the nearest 0,1 mm. Due to the
min
additional processing step, being the orientation of the material, the tolerance on mean wall thickness of
the PVC-O pipe could be increased.
The tolerances on out-of-roundness shall be in accordance with ISO 11922-1:2018, grade M.
For PN 25, nominal diameters from ISO 2531 can also be used.
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SIST EN 17176-2:2019
EN 17176-2:2019 (E)
Table 3 — Nominal outside diameters d and nominal wall thickness e
n n
Material
PN for design coefficient C = 1,6
class
315 6,3 8 10 12,5 16 20 25
355 8 10 12,5 16 20 25
400 8 10 12,5 16 20 25
450 10 12,5 16 20 25
500 10 12,5 16 20 25
PN for design coefficient C = 1,4
450 10 12,5 16 20 25
500 12,5 16 20 25
Pipe series S numbers preferred and computed values (ISO 3) and standard dimension ratios (SDR)
S 32,0 28,0 25,0 22,4 20,0 18,0 16,0 14,0 12,5 11,2 10,0 9,0 8,0
So 31,623 28,184 25,119 22,387 19,953 17,783 15,849 14,125 12,589 11,220 10,000 8,9125 7,9433
SDR 65,0 57,0 51,0 45,8 41,0 37,0 33,0 29,0 26,0 23,4 21,0 19,0 17,0
e , mm
n n
63 1,6 1,8 2,0 2,2 2,5 2,7 3,0 3,4 3,8
75
...
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