DIN EN 16397-1-2015 Flexible couplings - Part 1 Performance requirements German version EN 16397-1 2014《挠性联轴节 第1部分 性能要求 德文版本EN 16397-1-2014》.pdf

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1、January 2015 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 23.040.60!%?DK“2283340www.din.deDDIN EN 16397-1Flexible couplings Part 1: Performance requirements;English version EN 16397-1:2014,English translation of DIN EN 16397-1:2015-01Flexible Kupplungen Teil 1: Leistungsanforderungen;Englische Fassung EN 16397-1:2014,Englische bersetzung von DIN EN 16397

3、-1:2015-01Raccords flexibles Partie 1: Exigences de performance;Version anglaise EN 16397-1:2014,Traduction anglaise de DIN EN 16397-1:2015-01www.beuth.deDocument comprises 18 pagesIn case of doubt, the German-language original shall be considered authoritative.12.14DIN EN 16397-1:2015-01 2 A comma

4、is used as the decimal marker. National foreword This document (EN 16397-1:2014) has been prepared by Technical Committee CEN/TC 165 “Waste water engineering” (Secretariat: DIN, Germany). The preliminary work was done by Working Group WG 1 “General requirements for pipes”. The responsible German bod

5、y involved in its preparation was the DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice), Working Committee NA 119-05-09 AA Allgemeine Anforderungen an Rohre, Rohrverbindungen etc. fr Abwasserkanle und -leitungen. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16397-1 Nov

6、ember 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 wi

7、th 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 Mana

8、gement 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 st

9、atus 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, Mal

10、ta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CE

11、N All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16397-1:2014 EEN 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

12、 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 assembl

13、ies . 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 Tightne

14、ss 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 DIN EN 16397-1:2015-01 EN 16397-1:2014 (E) 3 Foreword This document (EN 16397-1:2014) has been prepared by Technica

15、l 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 with

16、drawn 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 followi

17、ng 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 t

18、he 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, Nether

19、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16397-1:2015-01 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 pipe

20、s 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

21、/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 join

22、ted. 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

23、 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

24、: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 produc

25、ts 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 defini

26、tions 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

27、shown in Figures 1 to 3. DIN EN 16397-1:2015-01 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 d3outside diameter Figure 1 Example of a flexible coupling with shear band Key 1 shear band adjustors Figure 2 Example of e

28、levation showing shear band adjustors DIN EN 16397-1:2015-01 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 d3outside diameter NOTE More than one drive unit could be used where required. Figure 3 Example of flexible coupling without shear band

29、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 b

30、anded adaptor is shown in Figure 4. DIN EN 16397-1:2015-01 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 d3outside diameter NOTE More than one drive unit could be used where required. Figure 4 Example of metal banded adaptor 3.3 bush moul

31、ded 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

32、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

33、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 DIN EN 16397-1:2015-01 EN 16397-1:2014 (E) 8 4 Symbols and abbreviations Symbol Description Unit FEnominal self-weight of sto

34、pper (for tightness testing) kN FRnominal self-weight of pipe (which may be obtained by calculation - volume and density) kN FSshear load kN FWthe weight of water in pipe kN FZthe applied load kN C1distance between seal and load application line for FZm C2distance between right hand support and load

35、 line for FEm Ssdistance 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 manufacturers instructions, flexible couplings and adapto

36、rs 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

37、 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 mee

38、t 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 config

39、uration 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 siz

40、e group and test mode shall be tested at the recommended assembly torque. DIN EN 16397-1:2015-01 EN 16397-1:2014 (E) 9 5.4.2 Test pressures Joint assemblies using couplings incorporating a shear band shall meet the requirements of 5.4.3 and 5.4.4, when tested at an internal pressure of 100 kPa (1,0

41、bar) in accordance with 6.1.2. Joint assemblies using couplings or adaptors without a shear band shall meet the requirements of 5.4.3 and 5.4.4, when tested at an internal pressure of 50 kPa (0,5 bar) in accordance with 6.1.2. If products covered by this standard are required to withstand continuous

42、 working under low pressure (i.e. continuous surcharge flow is expected, e.g. for water transfer pipelines), the test pressure shall be higher than specified above for either type of coupling or adaptor. The higher test pressure should be agreed between manufacturer and specifier. Joint assemblies u

43、sing couplings incorporating a shear band shall meet the requirements of 5.4.3 and 5.4.4 when tested with a vacuum pressure of -0,25 bar (0,75 bar absolute) when tested in accordance with 6.1.3. A component of a joint assembly shall not be used in more than one test. 5.4.3 Angular deflection One pip

44、e in a joint assembly shall be deflected by the method described in 6.1.4 by the amount specified in Table 1 for its relevant nominal size and when so deflected shall withstand the test pressures specified in 5.4.2 for 5 min without visible leakage or more than 10 % change in pressure after the pres

45、sure has stabilised. Table 1 Deflection Nominal coupling size mm Deflectionamm/m Deflection degrees Up to 200 80 4,6 201 to 500 30 1,7 501 to 800 20 1,1 800 10 0,6 aPer metre of deflected pipe length (see Figure 5). Where a joint assembly is made up with pipes of two different sizes the deflection a

46、ppropriate to the larger pipe shall be applied. 5.4.4 Shear resistance and deformation 5.4.4.1 General A joint assembly shall withstand short term and long term shear load when tested according to 6.1.5. This should be either 6.1.5.1, 6.1.5.3 and 6.1.5.4 or 6.1.5.2, 6.1.5.3 and 6.1.5.4. 5.4.4.2 Join

47、t assemblies connecting rigid pipes For joint assemblies connecting pipelines of materials which do not undergo significant diametral deformation under shear test load (e. g. vitrified clay, concrete, cast-iron, ductile iron, steel and fibre-cement) an external load FZ(see Formula 1) shall be applie

48、d to one pipe to produce a minimum shear load at the joint assembly of 25 N per millimetre of nominal size. The joint assembly shall withstand the test pressures specified in 5.4.2 for 15 min without visible leakage or more than 10 % change in pressure after the pressure has stabilised. The clamping

49、 bands, shear bands, their adjustors and any means of attaching adjustors shall not exhibit any obvious signs of physical distress or degradation. DIN EN 16397-1:2015-01 EN 16397-1:2014 (E) 10 5.4.4.3 Joint assemblies connecting flexible and rigid to flexible pipes For joint assemblies connecting pipelines of materials which undergo significant diametral deformation under shear test load (typical examples include PVC-U, PE, PP and low stiffness GRP) the applied load shall be that required to produce a diametral deformation of (10 1,0) % on the