Plastics piping systems for non-pressure underground drainage and sewerage - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes, fittings and the system

This Part of EN 1401 specifies the requirements for solid wall pipes, fittings and the system of unplasticized poly(vinyl chloride) (PVC-U) piping systems in the field of non-pressure underground drainage and sewerage: a) outside the building structure (application area code "U") and b) both buried in ground within the building structure (application area code "D") and outside the building. This is reflected in the marking of products by "U" and "UD". It also specifies the test parameters for the test methods referred to in this European Standard. This European Standard covers a range of nominal sizes, a range of pipes and fittings series and a range of stiffness classes and gives recommendations concerning colours.

Kunststoff-Rohrleitungssysteme für erdverlegte drucklose Abwasserkanäle und -leitungen - Weichmacherfreies Polyvinylchlorid (PVC-U) - Teil 1: Anforderungen an Rohre, Formstücke und das Rohrleitungssystem

Dieser Teil von EN 1401 legt die Anforderungen an Vollwand-Rohre, -Formstücke und das Rohrleitungssystem
aus weichmacherfreiem Polyvinylchlorid (PVC-U) für Abwasserkanäle und -leitungen fest, die in erdverlegten
Schwerkraftentwässerungssystemen
⎯ außerhalb der Gebäudestruktur (Anwendungskennzeichen „U“) sowie
⎯ innerhalb der Gebäudestruktur (Anwendungskennzeichen „D“) und außerhalb der Gebäudestruktur
eingesetzt werden.
Dies wird durch die Produktkennzeichnung „U“ bzw. „UD“ angezeigt.
In diesem Teil sind auch die Prüfparameter für die Prüfverfahren festgelegt, auf die in dieser Europäischen
Norm verwiesen wird.
Diese Europäische Norm enthält Festlegungen für Nennweiten, Rohrreihen für Rohre und Formstücke und
eine Reihe von Steifigkeitsklassen und gibt Empfehlungen für die Auswahl der Einfärbung von Rohrleitungsteilen.
ANMERKUNG 1 Der Anwender bzw. Auftraggeber ist unter Berücksichtigung der eigenen Anforderungen sowie der
geltenden nationalen Festlegungen und Verlegepraktiken für die entsprechende Auswahl dieser Kriterien verantwortlich.
Zusammen mit prCEN/TS 1401-2 [1] und ENV 1401-3 [2] gilt dieser Teil für Rohre und Formstücke aus
PVC-U, ihre Verbindungen untereinander sowie mit Rohrleitungsteilen aus anderen Kunststoffen oder Rohrwerkstoffen,
die für erdverlegte drucklose Abwasserkanäle und -leitungen vorgesehen sind.
Diese Europäische Norm gilt für Rohre aus ungeschäumtem PVC-U sowohl mit glatten Enden als auch mit
angeformter Muffe.
Die Formstücke können sowohl im Spritzguss als auch handgefertigt aus Rohren und/oder aus Spritzgussteilen
hergestellt sein.

Systemes de canalisations en plastique pour les branchements et les collecteurs d'assainissement enterrés sans pression - Poly(chlorure de vinyle) non plastifié (PVC-U) - Partie 1 : Spécifications pour tubes, raccords et le systeme

La présente partie de l'EN 1401 spécifie les exigences pour les tubes, les raccords et le système à paroi
compacte fabriqués à partir de poly(chlorure de vinyle) non plastifié (PVC-U), destinés à être utilisés pour les
branchements et les collecteurs d'assainissement sans pression :
a) à l'extérieur de la structure du bâtiment (code de zone d'application « U ») ; et
b) aussi bien à l'extérieur du bâtiment qu'en enterré dans la structure du bâtiment (code de zone
d'application « D »).
Ceci est repéré au niveau du marquage des produits par « U » et « UD ».
Elle spécifie également les paramètres d'essai pour les méthodes d'essai référencées dans la présente
Norme européenne.
La présente Norme européenne couvre une gamme de dimensions nominales, une gamme de tubes et de
raccords ainsi qu’une gamme de classes de rigidité et donne des recommandations concernant les couleurs.
NOTE 1 Il est de la responsabilité de l'acheteur ou du prescripteur d'effectuer les sélections appropriées à partir de ces
données en tenant compte des exigences particulières, des éventuelles règles nationales concernées et des pratiques ou
codes de pose.
Conjointement aux prCEN/TS 1401-2 [1] et ENV 1401-3 [2], elle s'applique aux tubes et aux raccords en
PVC-U, à leurs assemblages ainsi qu'aux assemblages avec d'autres composants en d'autres matières,
plastiques ou non, destinés à être utilisés pour les systèmes de canalisations enterrées pour les
branchements et les collecteurs d'assainissement sans pression.
La présente Norme européenne est applicable aux tubes en PVC-U non expansé avec ou sans emboîtures.
Les raccords peuvent être fabriqués par moulage par injection ou façonnés à partir de tubes et/ou de
moulages.
Les exigences et les valeurs limites pour la zone d'application de code « D » sont données dans les
Tableaux 4, 6, 13 et 15.

Cevni sistemi iz polimernih materialov za odpadno vodo in kanalizacijo, ki delujejo po težnostnem principu in so položeni v zemljo - Nemehčan polivinilklorid (PVC-U) - 1. del: Specifikacije za cevi, fitinge in sistem

General Information

Status
Withdrawn
Publication Date
04-May-2009
Withdrawal Date
17-Jul-2019
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
18-Jul-2019
Due Date
10-Aug-2019
Completion Date
18-Jul-2019

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoff-Rohrleitungssysteme für erdverlegte drucklose Abwasserkanäle und -leitungen - Weichmacherfreies Polyvinylchlorid (PVC-U) - Teil 1: Anforderungen an Rohre, Formstücke und das RohrleitungssystemSystemes de canalisations en plastique pour les branchements et les collecteurs d'assainissement enterrés sans pression - Poly(chlorure de vinyle) non plastifié (PVC-U) - Partie 1 : Spécifications pour tubes, raccords et le systemePlastics piping systems for non-pressure underground drainage and sewerage - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes, fittings and the system93.030Zunanji sistemi za odpadno vodoExternal sewage systems23.040.01Deli cevovodov in cevovodi na splošnoPipeline components and pipelines in generalICS:Ta slovenski standard je istoveten z:EN 1401-1:2009SIST EN 1401-1:2009en,fr,de01-junij-2009SIST EN 1401-1:2009SLOVENSKI
STANDARDSIST EN 1401-1:19991DGRPHãþD



SIST EN 1401-1:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1401-1March 2009ICS 93.030Supersedes EN 1401-1:1998
English VersionPlastics piping systems for non-pressure underground drainageand sewerage - Unplasticized poly(vinyl chloride) (PVC-U) - Part1: Specifications for pipes, fittings and the systemSystèmes de canalisations en plastique pour lesbranchements et les collecteurs d'assainissement enterréssans pression - Poly(chlorure de vinyle) non plastifié (PVC-U) - Partie 1 : Spécifications pour tubes, raccords et lesystèmeKunststoff-Rohrleitungssysteme für erdverlegte druckloseAbwasserkanäle und-leitungen - WeichmacherfreiesPolyvinylchlorid (PVC-U) - Teil 1: Anforderungen an Rohre,Formstücke und das RohrleitungssystemThis European Standard was approved by CEN on 10 January 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1401-1:2009: ESIST EN 1401-1:2009



EN 1401-1:2009 (E) 2 Contents Page Foreword . 4 1 Scope . 6 2 Normative references . 6 3 Terms, definitions, symbols and abbreviations . 7 3.1 Terms and definitions . 7 3.2 Symbols . 9 3.3 Abbreviations . 10 4 Material . 10 4.1 Raw material . 10 4.2 Pipe material . 11 4.3 Fitting material. 11 4.4 Utilisation of non-virgin materials . 12 4.5 Sealing ring retaining means . 12 5 General characteristics . 12 5.1 Appearance . 12 5.2 Colour . 12 6 Geometrical characteristics . 12 6.1 General . 12 6.2 Dimensions of pipes . 12 6.3 Dimensions of fittings . 15 6.4 Dimensions of sockets and spigots. 16 6.5 Types of fittings . 20 7 Mechanical characteristics . 23 7.1 Mechanical characteristics of pipes . 23 7.2 Mechanical characteristics of fittings . 24 8 Physical characteristics . 24 8.1 Physical characteristics of pipes . 24 8.2 Physical characteristics of fittings . 25 9 Performance requirements . 26 10 Sealing rings . 27 11 Adhesives . 27 12 Marking. 27 12.1 General . 27 12.2 Minimum required marking of pipes . 28 12.3 Minimum required marking of fittings . 29 12.4 Additional marking . 29 Annex A (normative)
Utilisation of non-virgin material . 30 A.1 Material definitions . 30 A.2 Own reprocessable material . 30 A.3 External reprocessable and recyclable materials with agreed specification . 31 A.4 External reprocessable and recyclable materials not covered by an agreed specification . 33 SIST EN 1401-1:2009



EN 1401-1:2009 (E) 3 A.5 Summary of use of non-virgin material . 33 Annex B (informative)
General characteristics of PVC-U pipes and fittings . 34 B.1 General . 34 B.2 Compound characteristics . 34 B.3 Ring stiffness . 34 B.4 Creep ratio . 34 B.5 Chemical resistance . 35 B.6 Abrasion resistance . 35 B.7 Hydraulic roughness . 35 B.8 Diametric deflection . 35 Annex C (informative)
Product standards . 36 Bibliography . 37
SIST EN 1401-1:2009



EN 1401-1:2009 (E) 4 Foreword This document (EN 1401-1:2009) 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 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. 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 1401-1:1998. The main changes with respect to the previous edition are listed below: a) addition of a definition for solid wall pipes and fittings (3.1.13); b) updating of the references in Clause 2, Annex C and Bibliography; c) raw material (4.1); d) Cmax of sockets (Table 5); e) the SN series is extended with the sizes DN 710 (non-preferred) and DN 800 (Table 4); f) O-ring type sockets (6.4); g) solvent cement sockets (6.4.2.1); h) additional mechanical requirements of pipes (7.1.2); i) physical characteristics of pipes (Table 12 and note); j) performance requirements (Table 15 – first row); k) deletion of Long Term Performance of TPE seals (Table 15 and 10.3); l) reformulated material (A.1.5 and A.3.3); m) reprocessable and recyclable material from PVC-U products other than pipes and fittings (A.3.2 and Table A.2); n) summary of use of non-virgin material (A.5, Table A.3); o) compound characteristics (B.2). This European Standard is a Part of a System Standard for plastics piping systems of a particular material for a specified application. There are a number of such System Standards. System Standards are based on the results of the work undertaken in ISO/TC 138 "Plastics pipes, fittings and valves for the transport of fluids", which is a Technical Committee of the International Organization for Standardization (ISO). They are supported by separate standards on test methods to which references are made throughout the System Standard. The System Standards are consistent with general standards on functional requirements and on recommended practice for installation. EN 1401 consists of the following Parts, under the general title Plastics piping systems for non-pressure underground drainage and sewerage  Unplasticized poly(vinyl chloride) (PVC-U)  Part 1: Specifications for pipes, fittings and the system (the present standard)  Part 2: Guidance for assessment of conformity (under revision) SIST EN 1401-1:2009



EN 1401-1:2009 (E) 5  Part 3: Guidance for installation (ENV) 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, 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. SIST EN 1401-1:2009



EN 1401-1:2009 (E) 6 1 Scope This Part of EN 1401 specifies the requirements for solid wall pipes, fittings and the system of unplasticized poly(vinyl chloride) (PVC-U) piping systems in the field of non-pressure underground drainage and sewerage: a) outside the building structure (application area code "U") and b) both buried in ground within the building structure (application area code "D") and outside the building. This is reflected in the marking of products by "U" and "UD". It also specifies the test parameters for the test methods referred to in this European Standard. This European Standard covers a range of nominal sizes, a range of pipes and fittings series and a range of stiffness classes and gives recommendations concerning colours. NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selection from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. In conjunction with prCEN/TS 1401-2 [1] and ENV 1401-3 [2] it is applicable to PVC-U pipes and fittings, their joints and to joints with components of other plastics and non-plastics materials intended to be used for buried piping systems for non-pressure underground drainage and sewerage. This European Standard is applicable to non foamed PVC-U pipes without a socket as well as pipes with an integral socket. The fittings can be manufactured by injection-moulding or be fabricated from pipes and/or mouldings. Requirements and limiting values for application area code "D" are given in Table 4, Table 6, Table 13 and Table 15. NOTE 2 Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex C can be used with pipes and fittings conforming to this European Standard, provided they conform to the requirements for joint dimensions given in Clause 6 and to the requirements of Table 15. 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. EN 580, Plastics piping systems — Unplasticized poly(vinyl chloride)(PVC-U) pipes — Test method for the resistance to dichloromethane at a specified temperature (DCMT) EN 681-1, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage applications — Part 1: Vulcanized rubber EN 681-2, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage applications — Part 2: Thermoplastic elastomers EN 727, Plastics piping and ducting systems — Thermoplastics pipes and fittings — Determination of Vicat softening temperature (VST) EN 744:1995, Plastics piping and ducting systems — Thermoplastics pipes — Test method for resistance to external blows by the round-the-clock method SIST EN 1401-1:2009



EN 1401-1:2009 (E) 7 EN 922, Plastics piping and ducting systems — Pipes and fittings of unplasticized poly(vinyl chloride) (PVC-U) — Specimen preparation for determination of the viscosity number and calculation of the K-value EN 1053, Plastics piping systems — Thermoplastics piping systems for non-pressure applications — Test method for watertightness EN 1055, Plastics piping systems — Thermoplastics piping systems for soil and waste discharge inside buildings — Test method for resistance to elevated temperature cycling EN 1277, Plastics piping systems — Thermoplastics piping systems for buried non-pressure applications —Test method for leaktightness of elastomeric sealing ring type joints EN 1411:1996, Plastics piping and ducting systems — Thermoplastics pipes — Determination of resistance to external blows by the staircase method EN 1905, Plastics piping systems — Unplasticized poly(vinyl chloride) (PVC-U) pipes, fittings and material — Method for assessment of the PVC content based on total chlorine content EN 10204:2004, Metallic products — Types of inspection documents EN 12061, Plastics piping systems — Thermoplastics fittings — Test method for impact resistance EN 12256, Plastics piping systems — Thermoplastics fittings — Test method for mechanical strength or flexibility of fabricated fittings EN ISO 472:2001, Plastics — Vocabulary (ISO 472:1999) EN ISO 580, Plastics piping and ducting systems — Injection-moulded thermoplastics fittings — Methods for visually assessing the effects of heating (ISO 580:2005) EN ISO 1043-1:2001, Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special characteristics (ISO 1043-1:2001) EN ISO 1167-1:2006, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of the resistance to internal pressure — Part 1: General method (ISO 1167:2006) 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 1183-1:2004) EN ISO 2505, Thermoplastics pipes — Longitudinal reversion — Test method and parameters (ISO 2505:2005) EN ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions (ISO 3126:2005) EN ISO 9969, Thermoplastics pipes — Determination of ring stiffness (ISO 9969:2007) 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document, the following terms and definitions and those given in EN ISO 472:2001 and EN ISO 1043-1:2001 apply. SIST EN 1401-1:2009



EN 1401-1:2009 (E) 8 3.1.1 application area code code used in the marking of pipes and fittings to indicate the application area for which they are intended, as follows: U:
application area code for the area more than 1 m from the building to which the buried piping system is connected; D:
application area code for the area under and within 1 m from the building where the pipes and the fittings are buried in ground and are connected to the soil and waste discharge system of the building NOTE In code D application areas, the existence of hot water discharge in addition to the external forces from the surroundings is usual. 3.1.2 nominal size DN numerical designation of the size of a component, other than a component designated by thread size, which is approximately equal to the manufacturing dimension, in millimetres (mm) 3.1.3 nominal size DN/OD nominal size, related to the outside diameter 3.1.4 nominal outside diameter dn specified outside diameter, in millimetres, assigned to a nominal size DN/OD 3.1.5 outside diameter de value of the measurement of the outside diameter through its cross section at any point of a pipe or spigot, rounded to the next greater 0,1 mm 3.1.6 mean outside diameter dem value of the measurement of the outer circumference of a pipe or spigot end of a fitting in any cross section, divided by π (≈ 3,142), rounded to the next greater 0,1 mm 3.1.7 mean inside diameter of a socket dsm arithmetical mean of a number of measurements of the inside diameter of a socket in the same cross-section 3.1.8 out-of-roundness ovality difference between the measured maximum and the measured minimum outside diameter in the same cross section of a component SIST EN 1401-1:2009



EN 1401-1:2009 (E) 9 3.1.9 wall thickness e value of the measurement of the wall thickness at any point around the circumference of a component 3.1.10 mean wall thickness em arithmetical mean of a number of measurements of the wall thickness, regularly spaced around the circumference and in the same cross section of a component, including the measured minimum and the measured maximum values of the wall thickness in that cross section 3.1.11 standard dimension ratio SDR numerical designation of a pipe series, which is a convenient round number, approximately equal to the dimension ratio of the nominal outside diameter, dn, and the nominal wall thickness, en 3.1.12 nominal ring stiffness SN numerical designation, of the ring stiffness of a pipe or fitting, which is a convenient round number, relative to the determined stiffness in kilonewtons per square metre (kN/m2), indicating the minimum ring stiffness of a pipe or fitting 3.1.13 solid wall pipe and fitting pipe or fitting with smooth internal and external surface with the same compound / formulation through the wall 3.2 Symbols A :
length of engagement a :
circumferential side cover of a saddle branch B :
length of lead-in C :
depth of sealing zone de :
outside diameter dem :
mean outside diameter dn :
nominal outside diameter dsm :
mean inside diameter of a socket d3 :
internal diameter of the groove e :
wall thickness em :
mean wall thickness e2 :
wall thickness of a socket e3 :
wall thickness in the groove area f :
groove width SIST EN 1401-1:2009



EN 1401-1:2009 (E) 10 H :
length of chamfer K :
K-value L :
axial cover of a saddle branch l :
effective length of a pipe L1 :
length of spigot L2 :
length of the solvent cement socket M :
length of spigot of a plug R :
radius of swept fittings Z :
design length of a fitting α :
nominal angle of a fitting 3.3 Abbreviations DN :
nominal size DN/OD :
nominal size, outside diameter related PVC-U :
unplasticized poly(vinyl chloride) SDR :
standard dimension ratio SN :
nominal ring stiffness TIR :
true impact rate 4 Material 4.1 Raw material The raw material shall be PVC-U to which are added those additives that are needed to facilitate the manufacture of components conforming to the requirements of this European Standard. When calculated on the basis of a known formulation, or in case of dispute or unknown formulation, determined in accordance with EN 1905, the PVC-content shall be at least 80 % by mass for pipes and 85 % by mass for injection-moulded fittings. A further reduction of the PVC-U content to ≥ 75 % by mass for pipes only is permitted provided the PVC-U is substituted by coated or uncoated CaCO3 conforming to the following. a) The composition of the CaCO3, before coating if any, shall conform to the following:  content of CaCO3 ≥ 96 % by mass;  content of MgCO3 ≤ 4 % by mass;  content of CaCO3 and MgCO3 in total ≥ 98 % by mass. b) The physical properties of the material shall conform to the following:  mean particle size D50 ≤ 2,5 µm;  top cut D98 ≤ 20 µm. SIST EN 1401-1:2009



EN 1401-1:2009 (E) 11 4.2 Pipe material When tested in accordance with the test method as specified in Table 1, using the indicated parameters, the pipe material shall have characteristics conforming to the requirements given in Table 1. The pipe material shall be tested in the form of a pipe. Table 1 — Material characteristics of pipes Characteristic Requirements Test parameters Test method Resistance to internal pressure No failure during the test period End caps
Test temperature Orientation Number of test pieces Circumferential (hoop) stress Conditioning period Type of test Test period Type A or B conforming to EN ISO 1167-1:2006 60 °C Free
3 10 MPa
1 h Water-in-water 1 000 h EN ISO 1167-1:2006
4.3 Fitting material When tested in accordance with the test method as specified in Table 2, using the indicated parameters, the fitting material shall have characteristics conforming to the requirements given in Table 2. The fitting material shall be tested, in the actual formulation, in the form of an extruded or injection-moulded pipe. Fabricated fittings or parts of fabricated fittings shall be made from pipes conforming to this European Standard, except for the requirements for the wall thickness, and/or mouldings from PVC-U which conform to material, mechanical and physical characteristics as required in this European Standard. Table 2 — Material characteristics of fittings Characteristic Requirements Test parameters Test method Resistance to internal pressure No failure during the test period End caps
Dimensions
Free length for injection-
moulded pipe Test temperature Orientation Number of test pieces Circumferential (hoop)
stress Conditioning period Type of test Test period Type A or B conforming to EN ISO 1167-1:2006 50 mm ≤ dn ≤ 110 mm 3 mm ≤ e ≤ 5 mm ≥ 140 mm
60 °C Free 3 6,3 MPa
1 h Water-in-water 1 000 h
EN ISO 1167-1:2006
SIST EN 1401-1:2009



EN 1401-1:2009 (E) 12 4.4 Utilisation of non-virgin materials Conditions and requirements for the utilisation of non-virgin materials are given in Annex A. 4.5 Sealing ring retaining means It is permitted that sealing rings are retained using means made from polymers other than PVC-U. 5 General characteristics 5.1 Appearance When viewed without magnification, the following requirements apply: a) the internal and external surfaces of pipes and fittings shall be smooth, clean and free from grooving, blistering, impurities and pores and any other surface irregularity likely to prevent their conformity to this European Standard; b) pipe ends shall be cleanly cut and the ends of pipes and fittings shall be square to their axis. 5.2 Colour The pipes and the fittings shall be coloured through the wall. The colour should preferably be orange-brown (approximately RAL 8023 1)) or dusty grey (approximately RAL 7037 1)). Other colours may be used. 6 Geometrical characteristics 6.1 General Dimensions shall be measured in accordance with EN ISO 3126. NOTE The figures are schematic sketches only, to indicate the relevant dimensions. They do not necessary represent the manufactured components. 6.2 Dimensions of pipes 6.2.1 Outside diameters The mean outside diameter, dem, shall conform to Table 3.
1) According to RAL 840-HR, Colour register. SIST EN 1401-1:2009



EN 1401-1:2009 (E) 13 Table 3 — Mean outside diameters Dimensions in millimetres Nominal size DN/OD a Nominal outside diameter Mean outside diameter
dn dem,min dem,max 110 125 160 200 110 125 160 200 110,0 125,0 160,0 200,0 110,3 125,3 160,4 200,5 250 315 (355) 400 250 315 355 400 250,0 315,0 355,0 400,0 250,5 315,6 355,7 400,7 (450) 500 630 (710) 450 500 630 710 450,0 500,0 630,0 710,0 450,8 500,9 631,1 711,2 800 (900) 1000 800 900 1 000 800,0 900,0 1 000,0 801,3 901,5 1 001,6 a Non-preferred sizes are indicated in parenthesis.
6.2.2 Out of roundness The out-of-roundness, measured directly after production, shall be less than or equal to 0,024dn. 6.2.3 Length of pipes The effective length of a pipe, l, shall be not less than that declared by the manufacturer when measured as shown in Figure 1. SIST EN 1401-1:2009



EN 1401-1:2009 (E) 14
Figure 1 — Effective length of pipes 6.2.4 Chamfering If a chamfer is applied, the angle of chamfering shall be between 15 ° and 45 ° to the axis of the pipe (see Figure 2 and Table 5 or Figure 7 and Table 8, as applicable). The remaining wall thickness of the end of the pipe shall be at least 1⁄3 of emin. 6.2.5 Wall thickness The wall thickness, e, shall conform to Table 4, where a maximum wall thickness at any point up to 1,2emin is permitted provided that the mean wall thickness, em, is less than or equal to the specified em,max. For U application, DN 200 and greater, a reduction of emin up to 5 % is permitted, provided em is equal or exceeds the values of emin given in Table 4. In such case, the ring stiffness shall be measured according to EN ISO 9969 and shall be greater than or equal to the nominal value. NOTE
For the calculation of the pipe stiffness the values of emin as given in Table 4 should be used. SIST EN 1401-1:2009



EN 1401-1:2009 (E) 15 Table 4 — Wall thicknesses Dimensions in millimetres Nominal size DN/OD a Nominal outside diameter SN 2 SDR 51 b SN 4 SDR 41 SN 8 SDR 34
dn emin em,max emin em,max emin em,max 110 125 160 200 110 125 160 200 −− −− 3,2 3,9 −− −− 3,8 4,5 3,2 3,2 4,0 4,9 3,8 3,8 4,6 5,6 3,2 3,7 4,7 5,9 3,8 4,3 5,4 6,7 250 315 (355) 400 250 315 355 400 4,9 6,2 7,0 7,9 5,6 7,1 7,9 8,9 6,2 7,7 8,7 9,8 7,1 8,7 9,8 11,0 7,3 9,2 10,4 11,7 8,3 10,4 11,7 13,1 (450) 500 630 (710) 450 500 630 710 8,8 9,8 12,3 13,9 9,9 11,0 13,8 15,5 11,0 12,3 15,4 17,4 12,3 13,8 17,2 19,4 13,2 14,6 18,4 20,8 14,8 16,3 20,5 23,2 800 (900) 1000 800 900 1000 15,7 17,6 19,6 17,5 19,6 21,8 19,6 22,0 24,5 21,8 24,4 27,2 23,4 −− −− 26,8 −− −− a Non-preferred
...

SLOVENSKI oSIST prEN 1401-1:2006

PREDSTANDARD
junij 2006
Cevni sistemi iz polimernih materialov za odpadno vodo in kanalizacijo, ki
delujejo po težnostnem principu in so položeni v zemljo - Nemehčan
polivinilklorid (PVC-U) - 1. del: Specifikacije za cevi, fitinge in sistem
Plastics piping systems for non-pressure underground drainage and sewerage -
Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes, fittings
and the system
ICS 23.040.01; 93.030 Referenčna številka
oSIST prEN 1401-1:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD
DRAFT
prEN 1401-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2006
ICS Will supersede EN 1401-1:1998
English Version
Plastics piping systems for non-pressure underground drainage
and sewerage - Unplasticized poly(vinyl chloride) (PVC-U) - Part
1: Specifications for pipes, fittings and the system
Systèmes de canalisations en plastique pour les Kunststoff-Rohrleitungssysteme für erdverlegte drucklose
branchements et les collecteurs d'assainissement enterrés Abwasserkanäle und -leitungen - Weichmacherfreies
sans pression - Poly(chlorure de vinyle) non plastifié (PVC- Polyvinylchlorid (PVC-U) - Teil 1: Anforderungen an Rohre,
U) - Partie 1 : Spécifications pour tubes, raccords et le Formstücke und das Rohrleitungssystem
système
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 155.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1401-1:2006: E
worldwide for CEN national Members.

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prEN 1401-1:2006 (E)
Contents Page
Foreword 4
1 Scope 4
2 Normative references 5
3 Definitions, symbols and abbreviations 7
3.1 Definitions 7
3.2 Symbols 8
3.3 Abbreviations 9
4 Material 9
4.1 Raw material 9
4.2 Pipe material 10
4.3 Fitting material 10
4.4 Utilisation of non-virgin materials 11
4.5 Sealing ring retaining means 11
5 General characteristics 11
5.1 Appearance 11
5.2 Colour 11
6 Geometrical characteristics 12
6.1 General 12
6.2 Dimensions of pipes 12
6.3 Dimensions of fittings 14
6.4 Dimensions of sockets and spigots 15
6.5 Types of fittings 20
7 Mechanical characteristics 24
7.1 Mechanical characteristics of pipes 24
7.2 Mechanical characteristics of fittings 25
8 Physical characteristics 25
8.1 Physical characteristics of pipes 25
8.2 Physical characteristics of fittings 26
9 Performance requirements 27
10 Sealing rings 28
11 Adhesives 29
12 Marking 29
12.1 General 29
12.2 Minimum required marking of pipes 29
12.3 Minimum required marking of fittings 30
12.4 Additional marking 31
Annex A (normative) Utilisation of non-virgin material 32
A.1 Material definitions 32
A.2 Own reprocessable material 32
A.3 External reprocessable and recyclable materials with agreed specification 33
A.3.1 Material from PVC-U pipes and fittings 33
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prEN 1401-1:2006 (E)
A.3.2 Material from other PVC-U products other than pipes and fittings 34
A.3.3 External reprocessable and recyclable materials not covered by an agreed specification 35
Annex B (informative) General characteristics of PVC-U pipes and fittings 36
B.1 General 36
B.2 Compound characteristics 36
B.3 Ring stiffness 36
B.4 Creep ratio 36
B.5 Chemical resistance 36
B.6 Abrasion resistance 37
B.7 Hydraulic roughness 37
B.8 Diametric deflection 37
Annex C (informative) Product standards 38
Bibliography 39

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prEN 1401-1:2006 (E)
Foreword
This document (prEN 1401-1:2006) has been prepared by Technical Committee CEN/TC 155 “Plastics piping
systems and ducting systems”, the secretariat of which is held by NEN.
This document is submitted to CEN enquiry.
This document will supersede EN 1401-1:1998.
It has been prepared in liaison with CEN/TC 165 "Waste water engineering".
It is a revision of EN 1401-1:1998 with the following modifications:
a) inclusion of the solid multilayer pipes that are generally considered in prEN 13476 (Clause 1, definitions
3.1.14 and 3.1.15, in 4.2, and in 5.2);
b) updating of the normative references (2);
c) pipe wall thicknesses (6.2.5);
d) additional mechanical requirements of pipes (7.1.2 – Table 10);
e) physical characteristics of pipes (8.1 – Table 12 – resistance to dichlorometane);
f) physical characteristics of fittings (Table 13 – note 1);
g) performance requirements (Clause 9 – first row);
h) deletion of Long Term Performance of TPE seals (Clause 2 and Clause 9)
This standard is a Part of a System Standard for plastics piping systems of a particular material for a specified
application. There are a number of such System Standards.
System Standards are based on the results of the work undertaken in ISO/TC 138 "Plastics pipes, fittings and
valves for the transport of fluids", which is a Technical Committee of the International Organization for
Standardization (ISO).
They are supported by separate standards on test methods to which references are made throughout the
System Standard.
The System Standards are consistent with general standards on functional requirements and on
recommended practice for installation.
EN 1401 consists of the following Parts, under the general title Plastics piping systems for non-pressure
underground drainage and sewerage  Unplasticized poly(vinyl chloride) (PVC-U)

Part 1: Requirements for pipes, fittings and the system (the present standard)

Part 2: Guidance for the assessment of conformity (under revision)

Part 3: Guidance for installation
1 Scope
This Part of EN 1401 specifies the requirements for pipes, fittings and the system of unplasticized poly(vinyl
chloride) (PVC-U) piping systems in the field of non-pressure underground drainage and sewerage

outside the building structure (application area code "U"), and

both buried in ground within the building structure (application area code "D") and outside the building.
This is reflected in the marking of products by "U" and "UD".
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prEN 1401-1:2006 (E)
It also specifies the test parameters for the test methods referred to in this standard.
This standard covers a range of nominal sizes, a range of pipes and fittings series and a range of stiffness
classes and gives recommendations concerning colours.
NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selection from these aspects,
taking into account their particular requirements and any relevant national regulations and installation practices or codes.
[1] [2]
In conjunction with prCEN/TS 1401-2 and ENV 1401-3 it is applicable to PVC-U pipes and fittings, their
joints and to joints with components of other plastics and non-plastics materials intended to be used for buried
piping systems for non-pressure underground drainage and sewerage.
This standard is applicable to PVC-U pipes without a socket as well as pipes with an integral socket.
The pipes can be manufactured by monolayer (see 3.1.13) or multilayer process (see 3.1.14)
The fittings can be manufactured by injection-moulding or be fabricated from pipes and/or mouldings.
Requirements and limiting values for application area code "D" are given in Table 4, Table 6, Table 13 and
Table 15.
NOTE 2 Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex C can
be used with pipes and fittings conforming to this standard, provided they conform to the requirements for joint dimensions
given in Clause 6 and to the requirements of Table 15.
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.
EN 580, Plastics piping systems — Unplasticized poly(vinyl chloride)(PVC-U) pipes — Test method for the
resistance to dichloromethane at a specified temperature (DCMT)
EN 681-1, Elastomeric seals — Material requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 681-2, Elastomeric seals — Material requirements for pipe joint seals used in water and drainage
applications — Part 2: Thermoplastics elastomers
EN 727, Plastics piping and ducting systems - Thermoplastics pipes and fittings — Determination of Vicat
softening temperature (VST)
EN 744, Plastics piping and ducting systems — Thermoplastics pipes — Test method for resistance to
external blows by the round-the-clock method
EN 922, Plastics piping and ducting systems — Pipes and fittings of unplasticized poly(vinyl chloride)
(PVC-U) — Specimen preparation for determination of the viscosity number and calculation of the K-value
EN 1053, Plastics piping systems — Thermoplastics piping systems for non-pressure applications — Test
method for watertightness
EN 1055, Plastics piping systems — Thermoplastics piping systems for soil and waste discharge inside
buildings — Test method for resistance to elevated temperature cycling
EN 1277, Plastics piping systems — Thermoplastics piping systems for buried non-pressure applications —
Test method for leaktightness of elastomeric sealing ring type joints
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prEN 1401-1:2006 (E)
EN 1411, Plastics piping and ducting systems — Thermoplastics pipes — Determination of resistance to
external blows by the staircase method
EN 1905, Plastics piping systems — Unplasticized poly(vinylchloride) (PVC-U) pipes and fittings and material
— Method for assessment of the PVC content based on total chlorine content
EN 10204:2004, Metallic products — Types of inspection documents
EN 12061, Plastics piping systems — Thermoplastics fittings — Test method for impact strength
EN 12256, Plastics piping systems — Thermoplastics fittings — Test method for mechanical strength or
flexibility of fabricated fittings
EN ISO 472:2001, Plastics — Vocabulary
EN ISO 580, Plastics piping and ducting systems  Injection-moulded thermoplastics fittings  Methods for
visually assessing the effects of heating (ISO 580:2005)
EN ISO 1043-1:2005, Plastics — Symbols - Part 1: Basic polymers and their special characteristics
prEN ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the transport of fluids  Resistance to
internal pressure  Part 1: Test method (ISO/FDIS 1167:2005)
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 1183-1:2004)
EN ISO 2505, Thermoplastics pipes  Longitudinal reversion  Test methods and parameters
(ISO 2505:2005)
EN ISO 3126, Plastics piping systems  Plastics components  Determination of dimensions
(ISO 3126:2005)
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prEN 1401-1:2006 (E)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purpose of this standard, the following definitions and those given in EN ISO 472:2001 and
EN ISO 1043-1:2005 apply.
3.1.1
application area code
code used in the marking of pipes and fittings to indicate the application area for which they are intended, as
follows:
U: application area code for the area more than 1 m from the building to which the buried piping system is
connected;
D: application area code for the area under and within 1 m from the building where the pipes and the fittings
are buried in ground and are connected to the soil and waste discharge system of the building.
NOTE In code D application areas, the existence of hot water discharge in addition to the external forces from the
surroundings is usual.
3.1.2
nominal size
DN
numerical designation of the size of a component, other than a component designated by thread size, which is
approximately equal to the manufacturing dimension, in millimetres (mm)
3.1.3
nominal size
DN/OD
nominal size, related to the outside diameter
3.1.4
nominal outside diameter
d
n
specified outside diameter, in millimetres, assigned to a nominal size DN/OD
3.1.5
outside diameter
d
e
value of the measurement of the outside diameter through its cross section at any point of a pipe or spigot,
rounded to the next greater 0,1 mm
3.1.6
mean outside diameter
d
em
value of the measurement of the outer circumference of a pipe or spigot end of a fitting in any cross section,
divided by π (≈ 3,142), rounded to the next greater 0,1 mm
3.1.7
mean inside diameter of a socket
d
sm
arithmetical mean of a number of measurements of the inside diameter of a socket in the same cross section
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prEN 1401-1:2006 (E)
3.1.8
out-of-roundness
ovality
difference between the measured maximum and the measured minimum outside diameter in the same cross
section of a component
3.1.9
wall thickness
e
value of the measurement of the wall thickness at any point around the circumference of a component
3.1.10
mean wall thickness
e
m

arithmetical mean of a number of measurements of the wall thickness, regularly spaced around the
circumference and in the same cross section of a component, including the measured minimum and the
measured maximum values of the wall thickness in that cross section
3.1.11
standard dimension ratio
SDR
numerical designation of a pipe series, which is a convenient round number, approximately equal to the
dimension ratio of the nominal outside diameter, d , and the nominal wall thickness, e
n n
3.1.12
nominal ring stiffness SN
numerical designation, of the ring stiffness of a pipe or fitting, which is a convenient round number, relative to
2
the determined stiffness in kilonewtons per square metre (kN/m ), indicating the minimum ring stiffness of a
pipe or fitting
3.1.13
solid wall monolayer
pipe or fitting with smooth internal and external surface having the same formulation through the wall
3.1.14
solid wall multilayer
pipe or fitting comprising two or more layers of different formulation which contains a substantial mass of
polymer. Each layer contributes to the characteristics of the product.
3.2 Symbols
A : length of engagement
a : circumferential side cover of a saddle branch
B : length of lead-in
C : depth of sealing zone
d : outside diameter
e
d : mean outside diameter
em
d : nominal outside diameter
n
d : mean inside diameter of a socket
sm
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prEN 1401-1:2006 (E)
d : internal diameter of the groove
3
e : wall thickness
e : mean wall thickness
m
e : wall thickness of a socket
2
e : wall thickness in the groove area
3
f : groove width
H : length of chamfer
L : axial cover of a saddle branch
l : effective length of a pipe
L : length of spigot
1
L : length of the solvent cement socket
2
M : length of spigot of a plug
R : radius of swept fittings
Z : design length of a fitting
α : nominal angle of a fitting
3.3 Abbreviations
DN : nominal size
DN/OD : nominal size, outside diameter related
PVC-U : Unplasticized poly(vinyl chloride)
SDR : Standard dimension ratio
SN : Nominal ring stiffness
TIR : True impact rate
4 Material
4.1 Raw material
The raw material shall be PVC-U to which are added those additives that are needed to facilitate the
manufacture of components conforming to the requirements of this standard.
When calculated on the basis of a known formulation, or in case of dispute or unknown formulation,
determined in accordance with EN 1905, the PVC-content shall be at least 80 % by mass for pipes and 85 %
by mass for injection-moulded fittings.
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prEN 1401-1:2006 (E)
4.2 Pipe material
When tested in accordance with the test method as specified in Table 1, using the indicated parameters, the
pipe material shall have characteristics conforming to the requirements given in Table 1.
The pipe material shall be tested in the form of a pipe.
Table 1  Material characteristics of pipes

Characteristic Requirements Test parameters Test method
Resistance to No failure End caps Type A or B prEN ISO
internal during the test Test temperature 60 °C 1167-1
pressure period Orientation Free
Number of test pieces 3
Circumferential (hoop) stress 10 MPa
Conditioning period 1 h
Type of test Water-in-water
Test period 1000 h

In case of multilayer pipe, the material of each of the individual layers shall conform to the requirements given
in 4.1 and Table 1.
3
When measured in accordance with EN ISO 1183-1 the density of each layer shall be at least 1400 kg/m .
4.3 Fitting material
When tested in accordance with the test method as specified in Table 2, using the indicated parameters, the
fitting material shall have characteristics conforming to the requirements given in Table 2.
The fitting material shall be tested, in the actual formulation, in the form of an extruded or injection-moulded
pipe.
Fabricated fittings or parts of fabricated fittings shall be made from pipes conforming to this standard, except
for the requirements for the wall thickness, and/or mouldings from PVC-U which conform to material,
mechanical and physical characteristics as required in this standard.
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prEN 1401-1:2006 (E)
Table 2  Material characteristics of fittings

Characteristic Requirements Test parameters Test
method
Resistance to No failure End caps Type a or b prEN ISO
internal during the test Dimensions 50 mm ≤ d ≤ 110 mm 1167-1
n
pressure period 3 mm ≤ e ≤ 5 mm
Free length for injection- ≥ 140 mm
 moulded pipe
Test temperature 60 °C
Orientation Free
Number of test pieces 3
Circumferential 6,3 MPa
 (hoop) stress
Conditioning period 1 h
Type of test Water-in-water
Test period 1000 h

4.4 Utilisation of non-virgin materials
Conditions and requirements for the utilisation of non-virgin materials are given in Annex A.
4.5 Sealing ring retaining means
It is permitted that sealing rings are retained using means made from polymers other than PVC-U.
5 General characteristics
5.1 Appearance
When viewed without magnification, the following requirements apply:

the internal and external surfaces of pipes and fittings shall be smooth, clean and free from grooving,
blistering, impurities and pores and any other surface irregularity likely to prevent their conformity to this
standard;

pipe ends shall be cleanly cut and the ends of pipes and fittings shall be square to their axis.
5.2 Colour
1)
The external colour should preferably be orange-brown (approximately RAL 8023 ) or dusty grey
1)
(approximately RAL 7037 ). Other colours may be used.

1) According to RAL 840-HR, Colour register.
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prEN 1401-1:2006 (E)
6 Geometrical characteristics
6.1 General
Dimensions shall be measured in accordance with EN ISO 3126.
NOTE The figures are schematic sketches only, to indicate the relevant dimensions. They do not necessary
represent the manufactured components.
6.2 Dimensions of pipes
6.2.1 Outside diameters
The mean outside diameter, d , shall conform to Table 3.
em
Table 3  Mean outside diameters

Dimensions in millimetres

Nominal size DN/OD Nominal outside Mean outside diameter
a
diameter
d d d
n
em,min em,max
110 110 110,0 110,3
125 125 125,0 125,3
160 160 160,0 160,4
200 200 200,0 200,5
250 250 250,0 250,5
315 315 315,0 315,6
(355) 355 355,0 355,7
400 400 400,0 400,7
(450) 450 450,0 450,8
500 500 500,0 500,9
630 630 630,0 631,1
(710) 710 710,0 711,2
800 800 800,0 801,3
(900) 900 900,0 901,5
1000 1 000 1 000,0 1 001,6
a
 Non-preferred sizes are indicated in parenthesis.

6.2.2 Out-of-roundness
The out-of-roundness, measured directly after production, shall be less than or equal to 0,024d .
n
6.2.3 Length of pipes
The effective length of a pipe, l, shall be not less than that declared by the manufacturer when measured as
shown in Figure 1.
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prEN 1401-1:2006 (E)

Figure 1  Effective length of pipes
6.2.4 Chamfering
If a chamfer is applied, the angle of chamfering shall be between 15° and 45° to the axis of the pipe (see
Figure 2 and table 5 or Figure 7 and Table 8, as applicable).
1
The remaining wall thickness of the end of the pipe shall be at least ⁄ of e .
3 min
6.2.5 Wall thicknesses
The wall thickness, e, shall conform to Table 4, where a maximum wall thickness at any point up to 1,2e is
min
permitted provided that the mean wall thickness, e , is less than or equal to the specified e .
m m,max
e up to 5 % is permitted, provided e is equal or
For U application, DN 200 and greater, a reduction of
min m
exceeds the values of e given in Table 4.
min
NOTE For the calculation of the pipe stiffness the values of e as given in Table 4 should be used.

min
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prEN 1401-1:2006 (E)
Table 4  Wall thicknesses

Dimensions in millimetres
Nominal size Nominal outside SN 2 SN 4 SN 8
a b
DN/OD diameter SDR 51 SDR 41 SDR 34
d e e e e e e
n min m,max min m,max min m,max
110 110 −− −− 3,2 3,8 3,2 3,8
125 125 −− −− 3,2 3,8 3,7 4,3
160 160 3,2 3,8 4,0 4,6 4,7 5,4
200 200 3,9 4,5 4,9 5,6 5,9 6,7
250 250 4,9 5,6 6,2 7,1 7,3 8,3
315 315 6,2 7,1 7,7 8,7 9,2 10,4
(355) 355 7,0 7,9 8,7 9,8 10,4 11,7
400 400 7,9 8,9 9,8 11,0 11,7 13,1
(450) 450 8,8 9,9 11,0 12,3 13,2 14,8
500 500 9,8 11,0 12,3 13,8 14,6 16,3
630 630 12,3 13,8 15,4 17,2 18,4 20,5
(710) 710 13,9 15,5 17,4 19,4 −− −−
800 800 15,7 17,5 19,6 21,8 −− −−
(900) 900 17,6 19,6 22,0 24,4 −− −−
1000 1000 19,6 21,8 24,5 27,2 −− −−
a
 Non-preferred sizes are indicated in parenthesis.
b
 SDR 51 is applicable for application area code "U" only.

6.3 Dimensions of fittings
6.3.1 Outside diameters
The mean outside diameter, d , of the spigot shall conform to Table 3.
em
The out-of-roundness shall conform to the requirements given in 6.2.2.
6.3.2 Design lengths (Z)
The Z-length(s) of fittings (see Figures 8 to 11 and Figures 13 to 18) shall be given by the manufacturer.
NOTE The Z-lengths are intended to assist in the design of moulds and are not intended to be used for quality control
[3]
purposes. ISO 265-1:1988 can be used as a guideline.
6.3.3 Wall thicknesses
6.3.3.1 Minimum wall thickness, e , of the body or the spigot of a fitting shall conform to Table 4, except
min
that a reduction of 5 % resulting from core shifting is permitted. In such a case, the average of two opposite
wall thicknesses shall be equal to or exceed the values given in Table 4.
6.3.3.2 Where a fitting or adaptor provides for a transition between two nominal sizes, the wall thickness of
each connecting part shall conform to the requirements for the applicable nominal size. In such a case, the
wall thickness of the fitting body is permitted to change gradually from the one wall thickness to the other.
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prEN 1401-1:2006 (E)
6.3.3.3 Wall thickness of the cover of the saddle branch (see Figure 18) shall be equal or greater than e
min
of the applicable size and series (see Table 4) of the inlet.
6.3.3.4 Wall thickness of fabricated fittings, except for spigot and socket, may be changed locally by the
fabrication process, providing that the minimum wall thickness of the body conforms to e , as given in
3,min
Table 6, as appropriate for the SDR concerned.
6.4 Dimensions of sockets and spigots
6.4.1 Elastomeric ring seal sockets and spigots
6.4.1.1 Diameters and lengths
The diameters and lengths of elastomeric ring seal sockets and spigots shall conform to Table 5 (see
Figures 2, 3 or 4 as applicable).
Where sealing rings are firmly retained, the dimensions for the minimum value for A and the maximum value
for C shall be measured to the effective sealing point (see Figure 4) as specified by the manufacturer. This
point shall give a full sealing action.
Different designs of elastomeric ring seal sockets and spigots are permitted, provided the joints conform to the
requirements given in Table 15.
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prEN 1401-1:2006 (E)
Table 5  Diameters and lengths of elastomeric ring seal sockets and spigots

Dimensions in millimetres
Nominal size Nominal outside Socket Spigot
a
DN/OD diameter
b
d d A C L H
n sm,min min max 1,min
110 110 110,4 32 26 60 6
125 125 125,4 35 26 67 6
160 160 160,5 42 32 81 7
200 200 200,6 50 40 99 9
250 250 250,8 55 70 125 9
315 315 316,0 62 70 132 12
(355) 355 356,1 66 70 136 13
400 400 401,2 70 80 150 15
(450) 450 451,4 75 80 155 17
c
500 500 501,5 80 80 160 18
c
630 630 631,9 93 95 188 23
c
(710) 710 712,1 101 109 210 28
c
800 800 802,4 110 110 220 32
c
(900) 900 902,7 120 125 245 36
c
1 000 1 000 1 003,0 130 140 270 41
a
 Non-preferred sizes are indicated in parenthesis.
b
 Approximate values, when a 15° chamfer is applied.
c
 Higher values for C are allowed, provided the manufacturer states in his documentation the actual
required L according to the equation L = A + C.
1,min 1,min min


Figure 2  Basic dimensions of sockets and spigots
for elastomeric ring seal joints
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prEN 1401-1:2006 (E)

Figure 3  Typical groove designs for elastomeric ring seal sockets


Figure 4  Example for measuring the effective sealing point

6.4.1.2 Wall thicknesses of sockets
The wall thicknesses of sockets, e and e (see Figure 2), except the socket mouth, shall conform to Table 6.
2 3
A reduction of 5 % of e and e resulting from core shifting is permitted.
2 3
In such a case the average of two opposite wall thicknesses shall be equal to or exceed the values given in
Table 6.
Where a sealing ring is located by means of a retaining cap or ring (see Figure 5) the wall thickness in this
area shall be calculated by addition of the wall thickness of the socket and the wall thickness of the retaining
cap or ring at the corresponding places in the same cross section.
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prEN 1401-1:2006 (E)
Table 6  Wall thicknesses of sockets

Dimensions in millimetres
Nominal size Nominal outside SN 2 SN 4 SN 8
a b
DN/OD diameter SDR 51 SDR 41 SDR 34
d e e e e e e
n 2,min 3,min 2,min 3,min 2,min 3,min
110 110 −− −− 2,9 2,4 2,9 2,4
125 125 −− −− 2,9 2,4 3,4 2,8
160 160 2,9 2,4 3,6 3,0 4,3 3,6
3,6 3,0 4,4 3,7 5,4 4,5
200 200
250 250 4,5 3,7 5,5 4,7 6,6 5,5
315 315 5,6 4,7 6,9 5,8 8,3 6,9
(355) 355 6,3 5,3 7,8 6,6 9,4 7,8
400 400 7,1 6,0 8,8 7,4 10,6 8,8
(450) 450 8,0 6,6 9,9 8,3 11,9 9,9
500 500 8,9 7,4 11,1 9,3 13,2 11,0
630 630 11,1 9,3 13,9 11,6 16,6 13,8
(710) 710 12,6 10,5 15,7 13,1 −− −−
800 800 14,1 11,8 17,7 14,7 −− −−
(900) 900 16,0 13,2 19,8 16,5 −− −−
1000 1000 17,8 14,7 22,0 18,4 −− −−
a
 Non-preferred sizes are indicated in parenthesis.
b
 SDR 51 is applicable for application area code "U" only.


Figure 5  Example for calculation of the wall thickness
of sockets with retaining cap
6.4.1.3 Dimensions for "O-ring type" sockets
The dimensions of "O-ring type" sockets shall conform to Table 7 (see Figure 6).
18

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prEN 1401-1:2006 (E)
Table 7  Dimensions of "O-ring type" sockets

Dimensions in millimetres
Nominal size Nominal outside Socket Groove
a
DN/OD diameter
d d B d d f f
n sm,max min 3,min 3,max min max
110 110 110,9 6 120,3 121,3 9,1 11,1
125 125 125,9 7 137,1 138,2 10,4 12,6
160 160 161,0 9 173,8 175,0 11,7 14,1
200 200 201,1 12 215,6 217,0 13,0 15,8
250 250 252,0 18 272,9 274,5 19,5 26,7
315 315 317,3 20 338,9 340,9 20,8 28,4
(355) 355 357,5 22 383,0 385,2 22,5 30,5
400 400 402,8 24 427,1 429,5 24,1 32,6
(450) 450 453,5 26 480,2 482,8 27,0 36,3
500 500 503,5 28 533,2 536,0 29,9 39,9
630 630 633,9 34
...

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