EN 295-7:2013

Vitrified clay pipe systems for drains and sewers - Part 7: Requirements for pipes and joints for pipe jacking

This European Standard specifies requirements for vitrified clay pipes and joints for pipe jacking for buried drain and sewer systems for the conveyance of wastewater (including domestic wastewater, surface water and rainwater) under gravity and periodic hydraulic surcharge or under continuous low head of pressure. Pipe jacking techniques include micro-tunnelling, pipe-eating, pipe bursting and where appropriate lining with discrete pipes.
This standard also specifies requirements for rubber, polyurethane, polypropylene, stainless steel and other materials used for joints for pipe jacking.
NOTE   Corresponding provisions for the evaluation of conformity (ITT and FPC) and sampling and those for the test methods are further specified in EN 295-2 and EN 295-3, respectively.

Steinzeugrohrsysteme für Abwasserleitungen und -känale - Teil 7: Anforderungen an Rohre und Verbindungen für Rohrvortrieb

Diese Europäische Norm legt Anforderungen für Steinzeugrohre und Verbindungen für den Rohrvortrieb fest für erdverlegte Abwasserleitungen und -kanäle, die zur Ableitung von Abwasser (einschließlich häus¬lichem Abwasser, Oberflächenwasser und Regenwasser) als Freispiegelleitung und unter zeitweise er¬höhtem Druck oder bei dauerhaft niedrigen Überdrücken verwendet werden. Rohrvortriebsverfahren schließen Mikrotunnelbau (ferngesteuerter, unbemannter Rohrvortrieb), Rohrüberfahren (en: pipe eating), Rohraufweiten (en: pipe bursting) und, sofern geeignet, Einzelrohrlining ein.
Diese Norm legt ebenfalls die Anforderungen an Werkstoffe aus Gummi, Polyurethan, Polypropylen und nichtrostendem Stahl sowie andere Werkstoffe für Verbindungen fest, die für den Rohrvortrieb verwendet werden.
ANMERKUNG   Festlegungen zur Bewertung der Konformität (ITT und WPK), Probenahme und Prüfverfahren sind in EN 295 2 bzw. in EN 295 3 festgelegt.

Systèmes de tuyaux en grès vitrifié pour les collecteurs d'assainissement et les branchements - Partie 7: Exigences applicables aux tuyaux et à leurs assemblages destinés au fonçage

La présente Norme européenne spécifie les exigences pour les tuyaux en grès vitrifié assemblés de manière souple pour la construction de collecteur et branchement enterrés pour le transport des eaux usées (y compris les eaux usées domestiques, les eaux de surface et les eaux de pluie) par gravité et surcharge hydraulique périodique ou à une faible hauteur de charge prolongée, installés en utilisant des techniques de fonçage de tuyaux, y compris par micro tunnelier, "pipe-eating", par éclatement de tuyau et le cas échéant avec des tuyaux différents pour le revêtement.
La présente Norme spécifie également les exigences pour les matériaux de caoutchouc, polyuréthane, polypropylène, acier inoxydable et autres utilisés pour les joints.
NOTE Des dispositions correspondantes pour l’évaluation de la conformité (essais de type initiaux [ETI] et contrôle
de production en usine [CPU]) et l’échantillonnage et les dispositions pour les méthodes d’essai sont spécifiées
respectivement dans l’EN 295-2 et l’EN 295-3.

Keramični cevni sistemi za odvod odpadne vode in kanalizacijo - 7. del: Zahteve za keramične cevi in spoje za potisne cevi

Ta evropski standard določa zahteve za keramične cevi in spoje za potisne cevi za podzemne odvodne in kanalizacijske sisteme za prenos odpadne vode (vključno s komunalno odpadno vodo, površinsko vodo in deževnico) pod vplivom težnosti in ponavljajoče hidravlične prenapetosti ali trajnega nizkega tlaka. Tehnike potisnih cevi vključujejo mikro tuneliranje, menjavanje cevi, polaganje brez jarka in, kjer je primerno, polaganje ločenih cevi. Ta standard določa tudi zahteve za gumo, poliuretan, polipropilen, nerjavno jeklo ter druge materiale, ki se uporabljajo za spoje za potisne cevi.

General Information

• Status: Published
• Publication Date: 05-Feb-2013
• ICS: 23.040.05 - Pipeline and its parts for external sewage systems
• ICS: 23.040.50 - Pipes and fittings of other materials
• ICS: 93.030 - External sewage systems
• Technical Committee: CEN/TC 165 - Waste water engineering
• Drafting Committee: CEN/TC 165/WG 2 - Vitrified clay pipes
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 13-Jun-2024
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/118 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on waste water engineering products
• Mandate: M/131 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on pipes, tanks and ancillaries, not in contact with water intended for human consumption
• Ref Project: SIST EN 295-7:2013 - Vitrified clay pipe systems for drains and sewers - Part 7: Requirements for pipes and joints for pipe jacking

Relations

• Replaces: EN 295-7:1995 - Vitrified clay pipes and fitting and pipe joints for drains and sewers - Part 7: Requirements for vitrified clay pipes and joints for pipe jacking
• Effective Date: 08-Jun-2022
• Replaces: EN 295-10:2005 - Vitrified clay pipes and fittings and pipe joints for drains and sewers - Part 10: Performance requirements
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2013
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SIST EN 295-10:2005
SIST EN 295-7:1996
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Vitrified clay pipe systems for drains and sewers - Part 7: Requirements for pipes and
joints for pipe jacking
Steinzeugrohrsysteme für Abwasserleitungen und -kanäle - Teil 7: Anforderungen an
Rohre und Verbindungen für Rohrvortrieb
Systèmes de tuyaux et accessoires en grès pour les réseaux de branchement et
d’assainissement - Partie 7: Exigences pour les tuyaux et leurs assemblages destinés au
fonçage
Ta slovenski standard je istoveten z: EN 295-7:2013
ICS:
23.040.50 Cevi in fitingi iz drugih Pipes and fittings of other
materialov materials
91.140.80 Drenažni sistemi Drainage systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 295-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2013
ICS 93.030 Supersedes EN 295-10:2005, EN 295-7:1995
English Version
Vitrified clay pipe systems for drains and sewers - Part 7:
Requirements for pipes and joints for pipe jacking
Systèmes de tuyaux et accessoires en grès pour les Steinzeugrohrsysteme für Abwasserleitungen und -känale -
réseaux de branchement et d'assainissement - Partie 7: Teil 7: Anforderungen an Rohre und Verbindungen für
Exigences pour les tuyaux et leurs assemblages destinés Rohrvortrieb
au fonçage
This European Standard was approved by CEN on 1 December 2012.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 295-7:2013: E
worldwide for CEN national Members.

Contents Page
Foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Requirements for pipes for pipe jacking . 6
4.1 Materials, manufacture, water absorption and appearance . 6
4.2 Dimensions. 7
4.2.1 General . 7
4.2.2 Internal diameter . 7
4.2.3 Tolerance on the declared internal diameter . 7
4.2.4 Continuity of invert . 8
4.2.5 External diameter . 8
4.2.6 Length . 9
4.2.7 Squareness of ends . 9
4.2.8 Deviation from straightness . 9
4.3 Strength . 9
4.3.1 Crushing strength (F ) . 9
N
4.3.2 Bending tensile strength. 10
4.3.3 Compressive strength . 10
4.3.4 Jacking strength . 10
4.3.5 Maximum working jacking load . 11
4.3.6 Fatigue strength under cyclic load . 11
4.4 Watertightness . 11
4.5 Airtightness . 11
4.6 Chemical resistance . 12
4.7 Hydraulic roughness . 12
4.8 Abrasion resistance . 12
4.9 Resistance against high pressure water jetting . 13
5 Requirements for joints for pipe jacking . 13
5.1 Joint materials . 13
5.1.1 Rubber sealing elements . 13
5.1.2 Polyurethane sealing elements . 13
5.1.3 Stainless steel sleeves . 13
5.1.4 Polypropylene sleeve couplings . 13
5.1.5 Other materials . 13
5.2 Load transfer rings . 13
5.3 Watertightness of joints under deflection and shear load . 14
5.3.1 General . 14
5.3.2 Test pressures. 14
5.4 Angular deflection . 14
5.5 Shear resistance . 14
5.6 Chemical and physical resistance to effluent . 14
5.7 Thermal cycling stability . 15
5.8 Long-term thermal stability . 15
6 Common requirements for pipes and joints . 15
6.1 Reaction to fire . 15
6.2 Durability . 15
6.3 Dangerous substances . 16
7 Designation . 16
8 Marking .1 6
9 Evaluation of conformity .1 7
9.1 General .1 7
9.2 Initial type testing .1 7
9.3 Factory production control (FPC) .1 7
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive .1 8
ZA.1 Scope and relevant characteristics .1 8
ZA.2 Procedures for the attestation of conformity of vitrified clay pipes and joints for pipe
jacking .2 0
ZA.2.1 Systems of attestation of conformity .2 0
ZA.2.2 EC declaration of conformity .2 1
ZA.3 CE marking .2 1
ZA.3.1 General .2 1
ZA.3.2 CE marking on the product .2 1
ZA.3.3 CE marking in the accompanying documents .2 2
Bibliography .2 5

Foreword
This document (EN 295-7:2013) has been prepared by Technical Committee CEN/TC 165 “Wastewater
engineering”, the secretariat of which is held by DIN.
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 August 2013, and conflicting national standards shall be withdrawn at
the latest by August 2013.
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 295-7:1995 and together with EN 295-1:2013, EN 295-2:2013,
EN 295-4:2013, EN 295-5:2013 and EN 295-6:2013 it supersedes EN 295-10:2005.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
The main changes with respect to the previous edition are listed below:
 nominal sizes DN 900, DN 1 200 and DN 1 400 added;
 requirements for the determination of jacking strength changed;
 requirements for the resistance to high pressure water jetting added;
 requirements for water absorption added;
 reaction to fire added;
 Annex ZA added;
 editorially revised.
The standard series EN 295 "Vitrified clay pipe systems for drains and sewers" consists of the following parts:
 Part 1: Requirements for pipes, fittings and joints
 Part 2: Evaluation of conformity and sampling
 Part 3: Test methods
 Part 4: Requirements for adaptors, connectors and flexible couplings
 Part 5: Requirements for perforated pipes and fittings
 Pa
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