SIST EN 16397-1:2015
(Main)Flexible couplings - Part 1: Performance requirements
Flexible couplings - Part 1: Performance requirements
This Standard specifies the performance requirements for flexible couplings, bushes and adaptors for use with pipes and fittings in drainage and sewerage systems, normally operated under gravity, both above and below ground and intended to connect different pipes for:
- Repair of damaged pipelines,
- Connecting pipes of different materials and/or diameters,
- Jointing short/cut lengths of pipe,
- Jointing specific pipe systems,
- Jointing post-inserted preformed junctions.
Typically a coupling consists of a moulded or extruded flexible sleeve with two clamping bands with or without a shear band. The clamping bands enable the sleeve to form a seal with the pipes to be joined. The shear band gives resistance to shear forces. Connections
may be made between pipes which cannot be satisfactorily joined by a coupling alone, of dissimilar sizes or material, by using an appropriate bush or bushes with the coupling.
Flexible Kupplungen - Teil 1: Leistungsanforderungen
Die vorliegende Norm legt die Leistungsanforderungen an flexible Kupplungen, Ausgleichsringe und Übergangsbauteile für die Verwendung mit Rohren und Formstücken in Entwässerungssystemen fest, die üblicherweise als Schwerkraftentwässerungssysteme oberirdisch und erdverlegt betrieben werden und für den Anschluss unterschiedlicher Rohrleitungen für folgende Zwecke vorgesehen sind:
- die Reparatur von beschädigten Rohrleitungen;
- den Anschluss von Rohrleitungen aus unterschiedlichen Werkstoffen und/oder Durchmessern;
- die Verbindung kurzer/geschnittener Rohrleitungslängen;
- die Verbindung spezifischer Rohrsysteme;
- die Verbindung nachträglich eingebauter vorgefertigter Abzweigungen.
Üblicherweise besteht eine Kupplung aus einem Manschetten-Formteil oder einem extrudierten Teil mit zwei Spannbändern mit oder ohne Scherband. Durch die Spannbänder bildet die Manschette eine Abdichtung mit den zu verbindenden Rohren. Das Scherband bietet Widerstand gegen Scherkräfte. Anschlüsse können zwischen Rohren hergestellt werden, die nicht zufriedenstellend allein durch eine Kupplung verbunden werden können, mit ungleichen Größen oder Werkstoffen unter Verwendung eines geeigneten Ausgleichsrings oder eines Ausgleichsrings mit einer Kupplung.
Raccords flexibles - Partie 1: Exigences de performance
La présente norme spécifie les exigences de performance des raccords flexibles, des bagues et des raccords d’adaptation utilisés avec les tuyaux et accessoires dans les réseaux d’évacuation et d’assainissement, normalement de type gravitaire, qu’ils soient aériens ou enterrés, et destinés à raccorder différents tuyaux pour :
- la réparation des canalisations endommagées ;
- le raccordement de tuyaux constitués de matériaux différents et/ou ayant des diamètres différents ;
- l’assemblage de tronçons de tuyaux ;
- l’assemblage de systèmes de canalisations spécifiques ;
- l’assemblage de pièces de jonction préfabriquées post-insérées.
Un raccord est généralement composé d’un manchon flexible moulé ou extrudé avec deux colliers de serrage, avec ou sans bande de cisaillement. Les colliers de serrage permettent au manchon de former un joint d’étanchéité avec les tuyaux à assembler. La bande de cisaillement confère une résistance aux efforts de cisaillement. L’utilisation d’une ou plusieurs bagues appropriées avec le raccord permet de raccorder des tuyaux de tailles différentes ou constitués de matériaux différents, qui ne peuvent pas être assemblés de manière satisfaisante avec un raccord seul.
Prožne spojke - 1. del: Zahtevane lastnosti
Ta standard določa zahtevane lastnosti prožnih spojk, puš in adapterjev za uporabo s cevmi in spojniki v drenažnih in kanalizacijskih sistemih, ki običajno delujejo s pomočjo gravitacije nad in pod zemljo ter so namenjeni priključitvi različnih cevi za:
– popravilo poškodovanih cevovodov;
– priključitev cevi iz različnih materialov in/ali premerov;
– spajanje kratkih kosov/rezanih dolžin cevi;
– spajanje določenih cevnih sistemov;
– spajanje predoblikovanih spojev, ki so vstavljeni naknadno.
Spojka je običajno sestavljena iz ulite ali ekstrudirane prožne obojke, ki vključuje dva vpenjalna trakova s strižnim trakom ali brez njega. Vpenjalna trakova omogočata zatesnitev obojke s cevema, ki ju je treba združiti. Strižni trak zagotavlja odpornost na strižne sile. Z uporabo ustrezne puše oziroma puš skupaj s spojko
se lahko povežejo cevi različnih velikosti ali iz različnih materialov, ki jih ni mogoče zadostno povezati le s spojko.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prožne spojke - 1. del: Zahtevane lastnostiFlexible Kupplungen - Teil 1: LeistungsanforderungenRaccords flexibles - Partie 1: Exigences de performanceFlexible couplings - Part 1: Performance requirements23.040.60Prirobnice, oglavki in spojni elementiFlanges, couplings and jointsICS:Ta slovenski standard je istoveten z:EN 16397-1:2014SIST EN 16397-1:2015en,fr,de01-februar-2015SIST EN 16397-1:2015SLOVENSKI
STANDARD
SIST EN 16397-1:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16397-1
November 2014 ICS 23.040.60 English Version
Flexible couplings - Part 1: Performance requirements
Raccords flexibles - Partie 1: Exigences de performance
Flexible Kupplungen - Teil 1: Leistungsanforderungen This European Standard was approved by CEN on 30 August 2014.
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
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16397-1:2014 ESIST EN 16397-1:2015
EN 16397-1:2014 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Symbols and abbreviations .8 5 Product characteristics .8 5.1 General .8 5.2 Materials .8 5.3 Dimensional tolerances .8 5.4 Tightness of joint assemblies .8 5.4.1 General .8 5.4.2 Test pressures .9 5.4.3 Angular deflection .9 5.4.4 Shear resistance and deformation .9 5.4.5 Thermal cycling. 10 5.5 Strength of clamping and shear bands . 10 5.5.1 Clamping band assemblies . 10 5.5.2 Testing of means of fixing clamping and shear band adjustor strips . 10 5.6 Reaction to fire . 10 5.6.1 Use below ground . 10 5.6.2 Use above ground. 11 5.7 Durability . 11 5.7.1 General . 11 5.7.2 Durability of watertightness . 11 5.8 Dangerous substances . 11 6 Test methods . 12 6.1 Tightness test methods for joint assemblies . 12 6.1.1 General . 12 6.1.2 Internal pressure . 12 6.1.3 Vacuum . 12 6.1.4 Deflection test . 12 6.1.5 Shear test . 13 6.1.6 Thermal cycling test . 15
SIST EN 16397-1:2015
EN 16397-1:2014 (E) 3 Foreword This document (EN 16397-1:2014) has been prepared by Technical Committee CEN/TC 165 “Waste water 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 May 2015 and conflicting national standards shall be withdrawn at the latest by August 2016. 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. EN 16397 “Flexible couplings” contains the following parts: — Part 1: Performance requirements; — Part 2: Characteristics and testing for metal banded flexible couplings, adaptors and bushes. This European Standard takes into account the requirements of EN 476. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16397-1:2015
EN 16397-1:2014 (E) 4 1 Scope This European Standard specifies the performance requirements for flexible couplings and adaptors and bushes for use with pipes and fittings in drain and sewer systems, usually operated under gravity and periodic hydraulic surcharge, both above and below ground inside or outside buildings and intended to connect pipes for: — repair of damaged pipelines; — connecting pipes of different materials and/or diameters; — jointing short/cut lengths of pipe; — jointing specific pipe systems; — jointing post-inserted preformed junctions. Typically a coupling consists of a moulded or extruded flexible sleeve with two clamping bands with or without a shear band. The clamping bands enable the sleeve to form a seal with the pipes to be jointed. The shear band gives resistance to shear forces. Connections may be made between pipes which cannot be satisfactorily jointed by a coupling alone, of dissimilar sizes or material, by using an appropriate bush or bushes with the coupling or by using an appropriate adaptor. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 476:2011, General requirements for components used in drains and sewers EN 1055:1996, Plastics piping systems - Thermoplastics piping systems for soil and waste discharge inside buildings - Test method for resistance to elevated temperature cycling EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 16397-2, Flexible couplings – Part 2: Characteristics and testing for metal banded flexible couplings, adaptors and bushes 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 flexible coupling moulded or extruded and joined flexible sleeve, with or without bushes or shear band, with adjustable clamping bands by which it is secured to the ends of pipes with outside diameters within the tolerance range covered by the coupling Note 1 to entry: Examples are shown in Figures 1 to 3. SIST EN 16397-1:2015
EN 16397-1:2014 (E) 5
Key 1 pipe 1 2 pipe 2 3 drive unit 4 adjustor unit 5 shear band 6 sleeve 7 clamping band b width of sleeve d3 outside diameter Figure 1 — Example of a flexible coupling with shear band
Key 1 shear band adjustors Figure 2 — Example of elevation showing shear band adjustors SIST EN 16397-1:2015
EN 16397-1:2014 (E) 6
Key 1 pipe 1 2 clamping band with drive unit 3 sleeve 4 pipe 2 b width of sleeve d3 outside diameter NOTE More than one drive unit could be used where required. Figure 3 — Example of flexible coupling without shear band 3.2 flexible adaptor moulded or extruded stepped flexible sleeve with adjustable clamping bands by which it is secured to pipes of different outside diameters beyond the tolerance range for a flexible coupling which may incorporate an abrupt change of section Note 1 to entry: An example of a metal banded adaptor is shown in Figure 4. SIST EN 16397-1:2015
EN 16397-1:2014 (E) 7
Key 1 pipe 1 2 pipe 2 3 moulded rubber 4 drive unit 5 clamping band b width of sleeve d3 outside diameter NOTE More than one drive unit could be used where required. Figure 4 — Example of metal banded adaptor 3.3 bush moulded or extruded and joined elastomeric section only used with couplings having shear bands to compensate for variations between the outside diameters of pipes which cannot be satisfactorily joined by a coupling alone 3.4 nominal size of a flexible coupling and an adaptor maximum outside diameter of the pipes with which a flexible coupling or adaptor can be used 3.5 shear band component for bearing of shear loads after installation 3.6 clamping band means of clamping the flexible coupling to a pipe using a specified force 3.7 adjustor strip shear band fixing means of clamping the shear band to the flexible coupling using a specified force Note 1 to entry: See Figure 2. 3.8 stopper mechanical means of sealing the open end of a pipe, typically used in a pressure test SIST EN 16397-1:2015
EN 16397-1:2014 (E) 8 4 Symbols and abbreviations Symbol Description Unit FE
nominal self-weight of stopper (for tightness testing) kN FR
nominal self-weight of pipe (which may be obtained by calculation - volume and density) kN FS
shear load kN FW
the weight of water in pipe kN FZ
the applied load kN C1
distance between seal and load application line for FZ m C2
distance between right hand support and load line for FE m Ss distance between seal and support of loaded pipe m 5 Product characteristics 5.1 General Flexible couplings and adaptors and bushes shall meet the product characteristics of this European Standard. When fitted according to the manufacturer's instructions, flexible couplings and adaptors and bushes shall not damage or distort the pipes to which they are connected. Flexible couplings and adaptors and bushes shall be free from such defects as would impair their function when in service. 5.2 Materials All materials used in flexible couplings and adaptors and bushes shall comply with the specific material characteristics in accordance with EN 16397-2. 5.3 Dimensional tolerances NOTE The requirements on tolerances and dimensions are specified in EN 16397-2. 5.4 Tightness of joint assemblies 5.4.1 General Joint assemblies using flexible couplings and adaptors and bushes shall meet the requirements of 5.4.2, 5.4.3, 5.4.4 and 5.4.5. Couplings and adaptors shall be tested in assemblies comprising both rigid pipes, both flexible pipes and a combination of rigid pipes with flexible pipes. When bushes are supplied as part of the product range a minimum of one test per test configuration shall include at least one bush/coupling combination. In addition when subjected to the test specified in the material specific part of this European Standard (EN 16397-2), the maximum sized coupling assembled with the thickest bush supplied and the appropriate pipes from each designated size group and test mode shall be tested at the recommended assembly torque. SIST EN 16397-1:2015
EN 16397-1:2014 (E)
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