1、BRITISH STANDARDBS EN 15266:2007Incorporating corrigendum April 2008Stainless steel pliable corrugated tubing kits in buildings for gas with an operating pressure up to 0,5 barICS 23.040.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g5
2、1g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15266:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2008ISBN 978 0 580 61310 4National forewordThis British Standard is the
3、UK implementation of EN 15266:2007. It partially supersedes BS 7838:1996 which is currently under review.The UK participation in its preparation was entrusted to Technical Committee PSE/12, Metal hoses, hose assemblies, bellows and expansion joints.A list of organizations represented on this committ
4、ee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued sinc
5、e publicationAmd. No. Date Comments17303 31 August 2007 Supersession details revised30 April 2008 Supersession details revisedEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15266May 2007ICS 23.040.01English VersionStainless steel pliable corrugated tubing kits in buildings for gaswith an operatin
6、g 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 Standard was approved by CEN on 17 Fe
7、bruary 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 concerning such nationalstandards may be obt
8、ained 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 Managem
9、ent 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,
10、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 of exploitation in any form and by
11、any means reservedworldwide for CEN national Members.Ref. No. EN 15266:2007: EEN 15266:2007 (E) 2 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 .8 4.3 Nominal size DN and pressur
12、e 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 Bending performance14 5.5 Crushing
13、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 Ageing.24 5.15 Tightness in c
14、ase 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 production control (FPC)36 6.4 Assem
15、bly 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 BS EN 15266:2007EN 15266:2007 (E) 3 Annex B (normative) Thermal
16、 attack by a single burning item.42 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 Procedure for atte
17、station of conformity of stainless steel pliable corrugated gas tubing kits.46 ZA.2.2 EC Certificate and declaration of conformity 48 ZA.3 CE marking and labelling.49 Bibliography52 BS EN 15266:2007EN 15266:2007 (E) 4 Foreword This document (EN 15266:2007) has been prepared by Technical Committee CE
18、N/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 natio
19、nal 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 informa
20、tive 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,
21、France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 15266:2007EN 15266:2007 (E) 5 Introduction This European Standard contains the gen
22、eral safety requirements 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
23、mandatory strength 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 corrugat
24、ed gas tubing kits can be used in conjunction with other approved gas pipework. BS EN 15266:2007EN 15266:2007 (E) 6 1 Scope This European Standard specifies the requirements for material, design, manufacture, testing, marking and documentation of stainless steel pliable corrugated gas tubing kits fo
25、r buildings with a maximum operating 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 installatio
26、ns. This document does not apply to: 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 referenc
27、ed 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 437, Tests gases - Test pressures Appliance categories EN 549, Rubbe
28、r materials for seals and diaphragms 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 a
29、nd hot water - Part 1: Anaerobic jointing 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 3r
30、d family gases and hot water - Part 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
31、purposes Part 7: Stainless steels EN 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 th
32、reads - Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation EN 10242, Threaded pipe fitting in malleable cast iron BS EN 15266:2007EN 15266:2007 (E) 7 EN 12164, Copper and copper alloys Rod for free machining purposes EN 12165, Copper and copper allo
33、ys Wrought and unwrought forging stock EN 13501-1:2002, 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 th
34、e thermal attack by a single burning item EN ISO 6509, 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 - Requir
35、ements (ISO 9001:2000) EN ISO 9227, Corrosion tests in 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 im
36、pingement of flame - Part 2: Single-flame source test (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 followi
37、ng apply. 3.1 pliable tubing (PLT) corrugated tubing 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 s
38、ource having design and performance responsibility for 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 we
39、lding, brazing, soldering or gluing 3.4.1 end fitting 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 BS EN 15266:2007EN 15266:2007 (E) 8 3.4.3 tee PLT fitting to join three sections of pliable tubing 3.4
40、.4 manifold PLT fitting designed to join 4 or more sections of pliable 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 P
41、LT support element used to attach the PLT kit to the structure of the 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
42、 of the characteristics for the whole group 3.10 gas 1st, 2nd and 3rd 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 t
43、he PLT kit, these components shall be provided or specified by the kit 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 conditi
44、ons under which they will be used. BS EN 15266:2007EN 15266:2007 (E) 9 Table 1 Materials 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 acc
45、ording to EN 12164 and EN 12165 PLT manifold/tees Stainless steel according to EN 10088-3, 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 s
46、ize DN and pressure drop The nominal size of a PLT kit shall be selected from the DNs given 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 decl
47、are the related pressure drop (see 5.18) for each nominal size DN (see 6.4). 4.4 Threads 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 Genera
48、l PLT fittings shall provide a tight connection to the pliable tubing. PLT fittings, whether 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 % l
49、ead. 4.5.2 Stress corrosion All fittings and components of copper alloy shall be resistant 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. BS EN 15266:2007EN 15266:2007 (E) 10 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 selecte
