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 3: Fittings

This part of prEN 17176 specifies the characteristics of solid-wall elbows, double sockets, repair couplings and reducers fittings made from oriented unplasticized poly(vinyl chloride) (PVC-O) for piping systems intended for water supply and for buried and above-ground drainage and sewerage under pressure and irrigation under pressure.
NOTE 1   The scope of this part is restricted to fittings on the market during the preparation of this standard. Therefore tees, flange adaptors, etc., are excluded from this version of the standard.
It also specifies the test parameters for the test methods referred to this part of prEN 17176.
In conjunction with prEN 17176-1, prEN 17176-2 and prEN 17176-5, it is applicable to oriented PVC-O fittings and to joints with components of PVC-O, PVC-U (EN ISO 1452 3), other plastics and non-plastics materials such as cast iron fittings (EN 12842) intended to be used for the following:
a)   water mains and services lines in the ground;
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 fittings for the conveyance of water intended for human consumption, waste water and water for irrigation up to and including 45 °C. For temperatures between 25 °C and 45 °C, prEN 17176-2:2017, Figure C.1 applies.
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 bar.
This part of prEN 17176 specifies a range of fittings sizes and pressure classes and gives a requirement and recommendations concerning colours.
NOTE 2   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 3: Formstücke

Dieser Teil von prEN 17176 legt die Eigenschaften von vollwandigen Winkeln, Doppelmuffen, Überschieb-muffen und Reduzierstutzen aus orientiertem weichmacherfreiem Polyvinylchlorid (PVC O) für Rohr-leitungssysteme fest, die für die Wasserversorgung und für erdverlegte und nicht erdverlegte Entwässerungs , Abwasser  und Bewässerungsdruckleitungen vorgesehen sind.
ANMERKUNG 1   Der Anwendungsbereich dieses Teils beschränkt sich auf die Formstücke, die während der Erarbeitung dieser Norm auf dem Markt erhältlich waren. Daher sind T Stücke, Flanschbuchsen usw. in dieser Ausgabe der Norm nicht berücksichtigt.
Er legt außerdem die Prüfparameter für die Prüfverfahren fest, auf die in diesem Teil von prEN 17176 verwiesen wird.
Zusammen mit prEN 17176-1, prEN 17176-2 und prEN 17176-5 gilt er für Formstücke aus orientiertem Polyvinylchlorid (PVC O) und für Verbindungen mit Bauteilen aus PVC O, aus PVC U (EN ISO 1452-3), aus anderen Kunststoffen und aus anderen, nicht aus Kunststoff bestehenden Werkstoffen, wie z. B. Formstücke aus Gusseisen (EN 12842), die für folgende Anwendungsgebiete vorgesehen sind:
a)   erdverlegte 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 Formstücke für den Transport von Wasser für den menschlichen Gebrauch, Abwasser und Wasser zur Bewässerung bis einschließlich 45 °C. Für Temperaturen zwischen 25 °C und 45 °C gilt prEN 17176-2:2017, Bild C.1.
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.
Dieser Teil von prEN 17176 enthält Festlegungen für Formstück Größen und Druckklassen und enthält eine Anforderung an sowie Empfehlungen für die Einfärbung.
ANMERKUNG 2   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 3 : Raccords

La présente partie de la prEN 17176 spécifie les caractéristiques des coudes, des doubles manchons, des manchons de réparation et des raccords réducteurs 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 et aux systèmes d’irrigation sous pression, enterrés ou aériens.
NOTE 1   Le domaine d’application de la présente partie se limite aux raccords présents sur le marché au moment de l’élaboration de la présente norme. Par conséquent, les tés, collets, etc., sont exclus de cette version de la norme.
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, la prEN 17176-2 et la prEN 17176-5, elle s’applique aux raccords en PVC‑O ainsi qu’à leurs assemblages avec des composants à base de PVC-O, de PVC-U (EN ISO 1452-3), d’autres matériaux, plastiques ou non plastiques, tels que la fonte (EN 12842) destinés à être utilisés pour les usages suivants :
a)   les conduites principales et les conduites de branchement enterrées ;
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 destinés à être 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 raccords pour le transport de l’eau destinée à la consommation humaine, 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, la prEN 17176-2:2017, Figure C.1 s’applique.
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.
La présente partie de la prEN 17176 spécifie une série de dimensions de raccords et de classes de pression et donne des exigences et des recommandations concernant les couleurs.
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) - 3. del: Fitingi

Ta del standarda prEN 17176 določa lastnosti trdih kolen, dvojnih obglavkov, spojk za popravilo in reducirnih fitingov 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.
OPOMBA 1:   Obseg tega dela standarda je omejen na fitinge, ki so na trgu v času priprave tega standarda. Zato so odcepi in prirobnične prilagoditve idr. izključeni iz te različice standarda.
Določa tudi preskusne parametre za preskusne metode iz tega dela standarda prEN 17176.
V povezavi s standardi prEN 17176-1, prEN 17176-2 in prEN 17176-5 se uporablja za fitinge iz orientiranega nemehčanega polivinilklorida in za spoje s sestavnimi deli iz orientiranega nemehčanega polivinilklorida in PVC-U (EN ISO 1452 3), za druge polimerne in nepolimerne materiale, kot so fitingi iz litega železa (EN 12842), ki se uporabljajo za:
a) podzemni 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 fitinge za prenos vode, ki je namenjena za pitje, 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 prEN 17176-2:2017.
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.
Ta del standarda prEN 17176 določa razpon velikosti fitingov ter tlačnih razredov in podaja zahteve in priporočila o barvah.
OPOMBA 2:   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

Status
Withdrawn
Public Enquiry End Date
14-Jan-2018
Publication Date
30-May-2019
Withdrawal Date
13-Apr-2022
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
14-Apr-2022
Due Date
07-May-2022
Completion Date
14-Apr-2022

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SLOVENSKI STANDARD
SIST-TS CEN/TS 17176-3:2019
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) - 3. del: Fitingi

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 3: Fittings

Kunststoff-Rohrleitungssysteme für die Wasserversorgung und für erdverlegte und nicht

erdverlegte Entwässerungs-, Abwasser- und Bewässerungsdruckleitungen - Orientiertes

weichmacherfreies Polyvinylchlorid (PVC-O) - Teil 3: Formstücke

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 3 : Raccords

Ta slovenski standard je istoveten z: CEN/TS 17176-3:2019
ICS:
23.040.45 Fitingi iz polimernih Plastics fittings
materialov
91.140.80 Drenažni sistemi Drainage systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
SIST-TS CEN/TS 17176-3:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 17176-3:2019
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SIST-TS CEN/TS 17176-3:2019
CEN/TS 17176-3
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
April 2019
TECHNISCHE SPEZIFIKATION
ICS 23.040.45
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 3: Fittings

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 3 : Raccords weichmacherfreies Polyvinylchlorid (PVC-O) - Teil 3:

Formstücke

This Technical Specification (CEN/TS) was approved by CEN on 11 February 2019 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to

submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS

available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in

parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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. CEN/TS 17176-3:2019 E

worldwide for CEN national Members.
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SIST-TS CEN/TS 17176-3:2019
CEN/TS 17176-3:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 8

4 Symbols ............................................................................................................................................................... 9

5 Material ............................................................................................................................................................... 9

5.1 General ................................................................................................................................................................ 9

5.2 Density ................................................................................................................................................................ 9

5.3 Orientation factor ........................................................................................................................................ 10

6 General characteristics .............................................................................................................................. 10

6.1 Appearance ..................................................................................................................................................... 10

6.2 Colour ............................................................................................................................................................... 10

6.3 Opacity ............................................................................................................................................................. 10

6.4 Classification of fittings .............................................................................................................................. 10

7 Geometrical characteristics ..................................................................................................................... 10

7.1 Design lengths, bend radii and angles .................................................................................................. 10

7.2 Measurement of dimensions .................................................................................................................... 10

7.3 Nominal outside diameters and minimum wall thickness ........................................................... 11

7.4 Fittings with integral sockets................................................................................................................... 11

7.5 Fittings with plain ends .............................................................................................................................. 11

7.6 Fittings with integral sockets with solvent cement joints ............................................................. 11

8 Pressure and operating temperature ................................................................................................... 11

8.1 Selection of nominal pressure for water up to and including 25 °C .......................................... 11

8.2 Determination of the allowable operating pressure for water up to 45 °C ............................. 11

9 Mechanical characteristics - Resistance to hydrostatic pressure .............................................. 11

10 Physical characteristics ............................................................................................................................. 12

11 Sealing rings ................................................................................................................................................... 12

12 Performance requirements ...................................................................................................................... 13

13 Marking ............................................................................................................................................................ 13

13.1 General ............................................................................................................................................................. 13

13.2 Minimum required marking .................................................................................................................... 13

13.3 Additional marking ..................................................................................................................................... 13

Annex A (normative) Determination of long term hydrostatic strength ................................................ 14

A.1 General ............................................................................................................................................................. 14

A.2 Test procedure .............................................................................................................................................. 14

A.2.1 General ............................................................................................................................................................. 14

A.2.2 Classified feedstock material ................................................................................................................... 14

A.2.3 Not classified feedstock material ........................................................................................................... 14

A.2.4 Classification according to MRP .............................................................................................................. 14

A.3 Confirmation and control points ............................................................................................................ 15

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A.4 Test report ...................................................................................................................................................... 15

Annex B (normative) Determination of circumferential orientation factor .......................................... 16

B.1 Principle ........................................................................................................................................................... 16

B.2 Method .............................................................................................................................................................. 16

B.3 Test parameters ............................................................................................................................................ 16

B.4 Test procedure .............................................................................................................................................. 17

B.5 Test report ...................................................................................................................................................... 17

Annex C (informative) Recommended dimensions of PVC-O fittings ....................................................... 18

C.1 General ............................................................................................................................................................. 18

C.2 Elbows ............................................................................................................................................................... 18

C.3 Reducers .......................................................................................................................................................... 19

C.4 Double sockets ............................................................................................................................................... 21

Bibliography ................................................................................................................................................................. 23

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SIST-TS CEN/TS 17176-3:2019
CEN/TS 17176-3:2019 (E)
European foreword

This document (CEN/TS 17176-3:2019) has been prepared by Technical Committee CEN/TC 155

“Plastics piping systems and ducting systems”, the secretariat of which is held by NEN.

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;
— Part 3: Fittings (this document);
— Part 5: Fitness for purpose of the system;
— Part 7: Guidance for assessment of conformity (in preparation).
For valves, see EN ISO 1452-4.
Guidance for installation is given in ISO/TR 4191 [3].

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to announce this Technical Specification: 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.
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SIST-TS CEN/TS 17176-3:2019
CEN/TS 17176-3:2019 (E)
Introduction

The System Standard, of which this is Part 3, 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 document, the following is relevant:

a) This document 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 material and components, other than fittings, are specified in

EN 17176-1 and EN 17176-2. For other components (not manufactured from PVC-O) reference is made

to the following standards: EN ISO 1452-3 (PVC-U) and EN 12842 (Cast Iron). Characteristics for fitness

for purpose (mainly for joints) are specified in EN 17176-5.
This document specifies the characteristics of PVC-O fittings.
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SIST-TS CEN/TS 17176-3:2019
CEN/TS 17176-3:2019 (E)
1 Scope

This document specifies the characteristics of solid-wall oriented unplasticized poly(vinyl chloride)

(PVC-O) fittings 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. The scope of this document is limited to double sockets, repair couplings, reducers and to non-

end load bearing elbows.

NOTE 1 The scope of this document is restricted to fittings on the market during the preparation of this

document. Therefore tees, flange adaptors, etc., are excluded from this version of the standard.

NOTE 2 For double sockets, repair couplings, and reducers there are no special fittings designs for end-load

bearing applications. However, restrained gaskets can be used for end-load bearing applications. In that case, the

requirements of EN 17176-5 are applicable.

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, this document is applicable to oriented PVC-O fittings

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.

This document is applicable to piping systems intended for the supply of water with a maximum

allowable operating pressure (PFA) up to and including 25 bar . The piping system according to this

European Standard 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, EN 17176-2:2019,

Figure C.1 applies.

This document specifies a range of fittings sizes and pressure classes and gives a requirement and

recommendations concerning colours.

NOTE 3 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 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
5 2
1) 1 bar = 0,1 MPa = 10 Pa; 1 MPa = 1 N/mm .
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SIST-TS CEN/TS 17176-3:2019
CEN/TS 17176-3:2019 (E)

EN 17176-2:2019, 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 2:

Pipes

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

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 1167-3, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids —

Determination of the resistance to internal pressure — Part 3: Preparation of components (ISO 1167-3)

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 1452-1, Plastics piping systems for water supply and for buried and above-ground drainage and

sewerage under pressure — Unplasticized poly(vinyl chloride) (PVC-U) — Part 1: General (ISO 1452-1)

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 1452-3:2010, Plastics piping systems for water supply and for buried and above-ground drainage

and sewerage under pressure — Unplasticized poly(vinyl chloride) (PVC-U) — Part 3: Fittings (ISO 1452-

3:2009, corrected version 2010-03-01)

EN ISO 1452-4, Plastics piping systems for water supply and for buried and above-ground drainage and

sewerage under pressure — Unplasticized poly(vinyl chloride) (PVC-U) — Part 4: Valves (ISO 1452-4)

EN ISO 1452-5, Plastics piping systems for water supply and for buried and above-ground drainage and

sewerage under pressure — Unplasticized poly(vinyl chloride) (PVC-U) — Part 5: Fitness for purpose of

the system (ISO 1452-5)

EN ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions (ISO 3126)

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 9852, Unplasticized poly(vinyl chloride) (PVC-U) pipes — Dichloromethane resistance at specified

temperature (DCMT) — Test method (ISO 9852)

ISO 161-1, Thermoplastics pipes for the conveyance of fluids — Nominal outside diameters and nominal

pressures — Part 1: Metric series

ISO 2507-1, Thermoplastics pipes and fittings — Vicat softening temperature — Part 1: General test

method

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)

ISO 18373-1, Rigid PVC pipes — Differential scanning calorimetry (DSC) method — Part 1: Measurement

of the processing temperature
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SIST-TS CEN/TS 17176-3:2019
CEN/TS 17176-3:2019 (E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 17176-1, and the following

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
3.1
PVC-O fitting

fitting of oriented unplasticized poly(vinyl chloride) (PVC-O) made from stretching PVC-U preforms

under certain conditions which improve its mechanical behaviour

Note 1 to entry: This means that fittings made from different components are excluded from the scope of this

document.
3.2
laying length socketed outlet
Z-length

distance from the inserted tube or spigot end to the intersection point of the fitting/valve axis (fitting or

valve centre)
3.3
laying length spigot outlet
Z-length

distance from the outlet end to the intersection point of the fitting/valve axis (fitting or valve centre)

3.4
laying length socket with parallel outlets
Z-length
distance between the ends of the inserted tubes or spigots
3.5
laying length one socket and one spigot with parallel outlets
Z-length
distance from the inserted tube or spigot end to the end of the spigot outlet
3.6
design length of bends
Z -length
length of an outlet, excluding any socket length or insert length of spigot
3.7
lower confidence limit of the predicted hydrostatic pressure
LPL

quantity with the dimension of pressure, which represents the 97,5 % (one sided) lower confidence

limit of the predicted hydrostatic pressure at a temperature, T, and a time, t
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3.8
long-term hydrostatic pressure
LTHS

quantity with the dimension of pressure, which represents the predicted mean pressure at a

temperature, T, and time, t (50 % confidence limit)
3.9
Minimum Required Pressure
MRP

minimum required pressure capability of the fitting is the value of the p at 20 °C for 50 years rounded

LPL
to the nearest 0,01 bar

Note 1 to entry: The MRP is related with the PN by means of the overall safety coefficient C:

MRP
PN = (1)
4 Symbols

For the purposes of this document, the symbols and abbreviated terms given in EN 17176-1 and

EN 17176-2, and the following apply.
α bend angle
l minimum length of spigot
1,min
r bend radius
r minimum bend radius
min
Z design laying length (Z -length)
d d
Z minimum design laying length
,d,min
Z design length reducing part
Z Design length connecting part double socket
Z minimum design length reducing part
r, min
Z minimum design length connecting part double socket
c, min
5 Material
5.1 General

The material from which the fittings are made shall conform to EN 17176-1 and to the requirements

given in 5.2 and 5.3.
5.2 Density

The density, ρ, at 23 °C of the fitting, 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
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CEN/TS 17176-3:2019 (E)
5.3 Orientation factor

The circumferential orientation factor shall be declared by the manufacturer with a minimum value of

1,5.

The orientation factor shall be measured according to Annex B and specified by the manufacturer to be

within – 5 % and + 15 % deviation from the declared values.
6 General characteristics
6.1 Appearance

When viewed without magnification the internal and external surfaces of fittings shall be smooth, clean

and free from scoring, cavities and other surface defects to an extent that would prevent conformity to

this document. The material shall not contain any impurities visible without magnification. The ends of

the fitting shall be cut cleanly and square to the axis of the fitting ends.
6.2 Colour
The colour of the fittings shall be uniform throughout the wall.
The preferred colour of fittings 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 or brown;
d) for treated waste water purple.

NOTE Attention is drawn to the fact that the colouring of fittings for the supply of water for human

consumption can be part of national regulation.
6.3 Opacity

If a fitting is required to be opaque for use in above ground applications the wall of the fitting shall

transmit not more than 0,2 % of visible light falling on it when tested in accordance with EN ISO 7686.

6.4 Classification of fittings

Fittings shall be classified to their nominal pressure PN and declared by the manufacturer.

The PN classification shall be established according to Annex A by means of the long-term pressure

strength determination.
7 Geometrical characteristics
7.1 Design lengths, bend radii and angles

The relevant dimensions are shown in Figures C.1 (elbows), C.2 (reducers) and C.3 (double sockets) and

shall be specified by the manufacturer in compliance with the requirements given in 7.2 until 7.6.

Annex C gives recommended values. For other dimensions the geometries of EN ISO 1452-3:2010, 6.7

are recommended.
7.2 Measurement of dimensions
Dimensions shall be measured in accordance with EN ISO 3126.
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7.3 Nominal outside diameters and minimum wall thickness

The nominal outside diameter of fittings with spigot end shall be in accordance with ISO 161-1.

The nominal (minimum) wall-thickness shall be calculated to fulfil the pressure requirements as

defined in Table 1 and shall not be lower than the nominal (minimum) wall-thickness for SDR 41 as

defined in EN 17176-2:2019, Table 3.

NOTE The SDR 41 requirement is introduced to safeguard an appropriate ring stiffness performance of the

fitting.
7.4 Fittings with integral sockets
Fittings with integral sockets shall be in accordance with EN 17176-2:2019, 7.4.
For spigots l and for the sockets l and m shall be declared.
1,min s, max min
7.5 Fittings with plain ends
Fittings with plain ends shall be in accordance with EN 17176-2:2019, 7.6.

Length of plain ends (insertion length) shall ensure a complete insertion of the fitting spigot end into

the pipe socket.
For spigots l shall be declared.
1min
7.6 Fittings with integral sockets with solvent cement joints

Fittings with integral socket with solvent cement joints shall be in accordance with EN 17176-2:2019,

7.5.
For spigots l and for the sockets l and m shall be declared.
1,min s, max min
8 Pressure and operating temperature
8.1 Selection of nominal pressure for water up to and including 25 °C

The PN rating of PVC-O fittings shall be equal or higher than the PN of the pipes to be used in the

pipeline.
8.2 Determination of the allowable operating pressure for water up to 45 °C

The allowable operating pressure, PFA, for temperatures up to and including 25 °C shall be equal to the

nominal pressure, PN.

To determine the allowable operating pressure, PFA, for temperatures between 25 °C and 45 °C, a

supplementary derating factor, f , shall be applied to the nominal pressure, PN, as given in Formula (2):

PFA = f × PN (2)
This factor is given in EN 17176-2:2019, Figure C.1.

NOTE Another derating factor, f , can be used, taking into account the application. Normally f equal

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