1、August 2007DEUTSCHE NORM English price group 18No part of this standard 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).ICS 23.040.01!,z=Q“9872646w
2、ww.din.deDDIN EN 15266Stainless steel pliable corrugated tubing kits in buildings for gas with anoperating pressure up to 0,5 barEnglish version of DIN EN 15266:2007-08Nichtrostende biegbare Wellrohrbaustze in Gebuden fr Gas mit einem Arbeitsdruckbis 0,5 barEnglische Fassung DIN EN 15266:2007-08www.
3、beuth.deDocument comprises 54 pages10.07DIN EN 15266:2007-08 2 Start of validity This standard is intended to be valid from 01 November 2007. It should be noted that, in Germany, CE conformity marking of construction products will be permitted once this standard has been listed in the Bundesanzeiger
4、 (German Federal Law Gazette) and from the date given therein. National foreword This standard has been prepared by CEN/TC 342 “Metal hoses, hose assemblies, bellows and expansion joints“ (Secretariat: UNI, Italy). The responsible German body involved in its preparation was the Normenausschuss Rohrl
5、eitungen und Dampfkesselanlagen (Pipelines and Boilers Standards Committee), Technical Committee NA 082-00-01 AA Schlauchleitungen und Kompensatoren aus Metall. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15266May 2007ICS 23.040.01English VersionStainless steel pliable corrugated tubing kits i
6、n buildings for gaswith an operating pressure up to 0,5 barKits de tuyaux onduleux pliables en acier inoxydable pour legaz dans les btiments avec une pression de serviceinfrieure ou gale 0,5 barNichtrostende biegbare Wellrohrbaustze in Gebuden frGas mit einem Arbeitsdruck bis 0,5 barThis European St
7、andard was approved by CEN on 17 February 2007.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 concernin
8、g 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 langu
9、age 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, Luxem
10、bourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights
11、of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15266:2007: EEN 15266:2007 (E) Contents Page Foreword .4 Introduction.5 1 Scope 6 2 Normative references6 3 Terms, definitions and abbreviations7 4 Design requirements.8 4.1 General .8 4.2 Materials .
12、8 4.3 Nominal size DN and pressure drop9 4.4 Threads.9 4.5 PLT fittings.9 4.6 Seals and sealing agents10 4.7 Environment.10 4.8 Supports .10 4.9 Electrical conductivity requirements.10 4.10 Cover.10 5 Performance and test requirements10 5.1 General .10 5.2 Tightness13 5.3 Dimensional check 14 5.4 Be
13、nding performance14 5.5 Crushing resistance 15 5.6 Stability under pressure .17 5.7 Wear resistance of outer cover17 5.8 Structural strength test.18 5.9 Impact resistance 18 5.10 Penetration resistance 19 5.11 Resistance to pull out .20 5.12 Chemical resistance21 5.13 Low temperature resistance.24 5
14、.14 Ageing.24 5.15 Tightness in case of fire .27 5.16 Reaction to fire.27 5.17 Electrical conductivity 27 5.18 Pressure drop 28 5.19 Maximum load for admissible deformation of PLT support32 5.20 Dangerous substances .34 6 Evaluation of conformity 34 6.1 General .34 6.2 Type testing34 6.3 Factory pro
15、duction control (FPC)36 6.4 Assembly and installation instruction.38 6.5 Marking, labelling and packaging39 Annex A (normative) Single-flame source test 40 A.1 A.1 General40 A.2 A.2 Standardised mounting and fixing.40 A.3 A.3 Test definition.40 A.4 A.4 Test duration 40 2EN 15266:2007 (E) Annex B (no
16、rmative) Thermal attack by a single burning item42 B.1 General 42 B.2 Standardised mounting and fixing .42 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive (89/106/EEC) .44 ZA.1 Scope and relevant characteristics 44 ZA.2 Pro
17、cedure for attestation of conformity of stainless steel pliable corrugated gas tubing kits46 ZA.2.2 EC Certificate and declaration of conformity .48 ZA.3 CE marking and labelling49 Bibliography.52 3EN 15266:2007 (E) Foreword This document (EN 15266:2007) has been prepared by Technical Committee CEN/
18、TC 342 “Metal hoses, hose assemblies, bellows and expansion joints”, the secretariat of which is held by UNI. 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 November 2007, and conflicting nationa
19、l standards shall be withdrawn at the latest by February 2009. 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 informati
20、ve Annex ZA, which is an integral part of this document. 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, Fr
21、ance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 4EN 15266:2007 (E) Introduction This European Standard contains the general safety require
22、ments relating to the safety of persons, animals and property and the protection of their environment. The requirements of this standard concern designers, manufacturers, suppliers and importers of stainless steel pliable corrugated gas tubing kits for buildings. Installation and mandatory strength
23、and tightness tests before commissioning should consider the local application regulations where they exist. This document is applicable to: new installation pipework; replacements of existing installations; or extensions to existing installations. Stainless steel pliable corrugated gas tubing kits
24、can be used in conjunction with other approved gas pipework. 5EN 15266:2007 (E) 1 Scope This European Standard specifies the requirements for material, design, manufacture, testing, marking and documentation of stainless steel pliable corrugated gas tubing kits for buildings with a maximum operating
25、 pressure (MOP) less than or equal to 0,5 bar and a nominal size range from DN 10 to DN 50. This document applies to stainless steel pliable corrugated gas tubing kits used for 1st, 2nd and 3rd family gases in residential, commercial and industrial gas installations. This document does not apply to:
26、 pliable tubing without cover; corrugated safety metal hose assemblies for connection to moveable appliances. This document does not cover the installation aspects of stainless steel pliable corrugated gas tubing kits. 2 Normative references The following referenced documents are indispensable for t
27、he 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 437, Tests gases - Test pressures Appliance categories EN 549, Rubber materials for seals and diaphragms
28、 for gas appliances and gas equipment EN 682, Elastomeric seals Materials requirements for seals used in pipes and fittings carrying gas and hydrocarbon fluids EN 751-1, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 1: Anaerobic joi
29、nting compounds EN 751-2, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds EN 751-3, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part
30、3: Unsintered PTFE tapes EN 1363-1:1999, Fire resistance tests Part 1: General requirements EN 1775:1998, Gas supply - Gas pipework for buildings - Maximum operating pressure 5 bar - Functional recommendations EN 10028-7, Flat products made of steels for pressure purposes Part 7: Stainless steels EN
31、 10088-3, Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes EN 10226-1, Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threa
32、ds and parallel internal threads - Dimensions, tolerances and designation EN 10242, Threaded pipe fitting in malleable cast iron 6EN 15266:2007 (E) EN 12164, Copper and copper alloys Rod for free machining purposes EN 12165, Copper and copper alloys Wrought and unwrought forging stock EN 13501-1:200
33、2, Fire classification of construction products and building elements - Part 1: Classification using test data from reaction to fire tests EN 13823, Reaction to fire tests for building products - Building products excluding floorings exposed to the thermal attack by a single burning item EN ISO 6509
34、, Corrosion of metals and alloys - Determination of dezincification resistance of brass (ISO 6509:1981) EN ISO 7369:2004, Pipework - Metal hoses and hose assemblies - Vocabulary (ISO 7369:2004) EN ISO 9001:2000, Quality management systems - Requirements (ISO 9001:2000) EN ISO 9227, Corrosion tests i
35、n artificial atmospheres - Salt spray tests (ISO 9227:2006) EN ISO 10380:2003, Pipework - Corrugated metal hoses and hose assemblies (ISO 10380:2003) EN ISO 11925-2, Reaction to fire tests - Ignitability of building products subjected to direct impingement of flame - Part 2: Single-flame source test
36、 (ISO 11925-2:2002) ISO 6957, Copper alloys - Ammonia test for stress corrosion resistance 3 Terms, definitions and abbreviations For the purposes of this document, the terms and definitions listed in EN ISO 7369:2004, EN 1775:1998 and the following apply. 3.1 pliable tubing (PLT) corrugated tubing
37、capable of being bent easily by hand a limited number of times, covered with a tubular outer sheath by the manufacturer at the time of production 3.2 PLT kit pliable tubing with its related components obtained or specified from one manufacturing source having design and performance responsibility fo
38、r the kit 3.3 bend radius radius measured to the centre line of the pliable tubing 3.4 PLT fitting unique fitting using mechanical attachment methods, in which tightness is achieved with or without seals, excluding other joining methods such as welding, brazing, soldering or gluing 3.4.1 end fitting
39、 PLT fitting intended to join pliable tubing to an external component 3.4.2 coupling PLT fitting intended to join two sections of pliable tubing 7EN 15266:2007 (E) 3.4.3 tee PLT fitting to join three sections of pliable tubing 3.4.4 manifold PLT fitting designed to join 4 or more sections of pliable
40、 tubing 3.5 seal any part intended to provide tightness within a PLT fitting 3.6 sleeve tubular outer sheath intended to protect the connection between the pliable tubing and a PLT fitting from corrosion or mechanical damage 3.7 PLT support element used to attach the PLT kit to the structure of the
41、building 3.8 rated flow rate flow rate at a given pressure drop, under standard reference conditions 3.9 family group of products produced by one manufacturer for which test results for one product of that group are representative of the characteristics for the whole group 3.10 gas 1st, 2nd and 3rd
42、family gases as defined in EN 437 NOTE These gases are commonly referred to as manufactured gases, natural gas and liquefied petroleum gases. 4 Design requirements 4.1 General Where additional components are required to complete the PLT kit, these components shall be provided or specified by the kit
43、 manufacturer. 4.2 Materials Materials for the manufacture of a PLT kit shall be selected from Table 1 and on the basis of their related suitability for fabrication, e.g. welding, cold forming, etc. as appropriate, and the conditions under which they will be used. 8EN 15266:2007 (E) Table 1 Material
44、s Component Material Pliable tubing Cover Stainless steel according to EN 10028-7: 1.4306, 1.4541, 1.4404, 1.4401, 1.4571 Synthetic material aPLT fittings Stainless steel according to EN 10088-3, copper alloys according to EN 12164 and EN 12165 PLT manifold/tees Stainless steel according to EN 10088
45、-3, copper alloys according to EN 12164 and EN 12165 Malleable cast iron according to EN 10242 types W 400-05; W 350-04; B 350-10 or B 300-06 Supports Metallic corrosion resistant material a see 4.10 4.3 Nominal size DN and pressure drop The nominal size of a PLT kit shall be selected from the DNs g
46、iven in EN ISO 10380:2003, Table 2. The nominal size range shall be from DN 10 to DN 50. The minimum bore size of the pliable tubing shall be at least 98 % of the nominal size DN in mm. The manufacturer shall declare the related pressure drop (see 5.18) for each nominal size DN (see 6.4). 4.4 Thread
47、s End fittings shall have terminating threads according to EN 10226-1. Integrated threads within the mechanical attachment of the PLT fittings shall not be compatible with EN 10226-1. 4.5 PLT fittings 4.5.1 General PLT fittings shall provide a tight connection to the pliable tubing. PLT fittings, wh
48、ether surface finished or not, shall be manufactured from materials listed in Table 1. Copper alloys shall be selected from EN 12164 and/or EN 12165 and shall contain at least 57 % copper and not more than 3,5 % lead. 4.5.2 Stress corrosion All fittings and components of copper alloy shall be resist
49、ant to stress corrosion. Stress corrosion resistance shall be determined in accordance with ISO 6957 (pH 9,5). 4.5.3 Dezincification All copper alloys components shall resist dezincification. If an alloy contains more than 10 % of zinc, its corrosion behaviour shall be assessed according to EN ISO 6509. 9EN 15266:2007 (E) 4.6 Seals and sealing agents Where seals or sealing agents are used in the PLT kit and are exposed to gas, they shall be selected from the appropriate European Standards (EN 549, EN 682, EN 751-1, EN 751-2 and EN 751-3). 4.7 Env
