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BS EN 15001-12009 ICS 23.040.01; 91.140.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Gas Infrastructure Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non- industrial installations Part 1 Detailed functional requirements for design, materials, construction, inspection and testing This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2009 BSI 2009 ISBN 978 0 580 54498 9 Amendments/corrigenda issued since publication Date Comments BS EN 15001-12009 National foreword This British Standard is the UK implementation of EN 15001-12009. The UK participation in its preparation was entrusted to Technical Committee GSE/33, Gas supply. A list of organizations represented on this committee 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. BS EN 15001-12009 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15001-1 July 2009 ICS 23.040.01 English Version Gas Infrastructure - Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations - Part 1 Detailed functional requirements for design, materials, construction, inspection and testing Infrastructures gazires - Canalisations dinstallations de gaz avec une pression de service suprieure 0,5 bar pour les installations industrielles et suprieures 5 bar pour les installations industrielles et non industrielles domestiques et commerciales - Partie 1 Exigences fonctionnelles dtailles relative la conception, aux matriaux, la construction, linspection et aux essais Gasinfrastruktur - Gas-Leitungsanlagen mit einem Betriebsdruck grer 0,5 bar fr industrielle Installationen und grer 5 bar fr industrielle und nicht-industrielle Installationen - Teil 1 Detaillierte funktionale Anforderungen an Planung, Material, Bau, Inspektion und Prfung This European Standard was approved by CEN on 16 May 2009. 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 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 Management Centre has the same status as the official 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, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre Avenue Marnix 17, B-1000 Brussels 2009 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 15001-12009 E BS EN 15001-12009 EN 15001-12009 E 2 Contents Page Foreword ..............................................................................................................................................................4 1 Scope ......................................................................................................................................................5 2 Normative references ............................................................................................................................7 3 Terms and definitions ........................................................................................................................ 12 3.1 Definitions relating to pressure ......................................................................................................... 12 3.2 Definitions relating to the gas installation ....................................................................................... 13 3.3 Definition relating to means of isolation .......................................................................................... 14 3.4 Definitions relating to jointing s ........................................................................................... 14 3.5 Definitions relating to components .................................................................................................. 15 3.6 Definitions relating to tests ............................................................................................................... 16 3.7 Definition relating to testing and inspection ................................................................................... 16 3.8 Definitions relating to assembly processes for metallic materials ............................................... 16 3.9 Definitions relating to pressure regulating and metering .............................................................. 17 4 General ................................................................................................................................................. 17 4.1 Quality system .................................................................................................................................... 17 4.2 Selection of materials ......................................................................................................................... 18 4.3 Protection against hazards ................................................................................................................ 18 4.4 Accommodation and location of gas pressure regulating and metering systems, gas pressure compressors and gas mixing systems ............................................................................ 19 5 Materials .............................................................................................................................................. 20 5.1 Standards and specifications for pipes and pipe fittings .............................................................. 20 5.2 Ancillaries ............................................................................................................................................ 24 5.3 Gas pressure regulating and safety systems .................................................................................. 25 6 Design of pipework ............................................................................................................................. 26 6.1 General ................................................................................................................................................. 26 6.2 Layout .................................................................................................................................................. 27 6.3 Dimensioning ...................................................................................................................................... 28 6.4 Pressure and wall thickness .............................................................................................................. 28 6.5 Safety engineering .............................................................................................................................. 35 6.6 Detail engineering ............................................................................................................................... 39 6.7 Hot tapping carbon steel pipe ........................................................................................................... 51 7 Design of pressure control systems................................................................................................. 52 7.1 General ................................................................................................................................................. 52 7.2 Pressure regulating system ............................................................................................................... 53 7.3 Instrumentation ................................................................................................................................... 53 7.4 Permanent bypasses .......................................................................................................................... 54 7.5 Construction requirements ................................................................................................................ 54 7.6 Low gas temperature .......................................................................................................................... 56 7.7 Gas compressors................................................................................................................................ 57 7.8 Safety systems .................................................................................................................................... 57 8 Construction ........................................................................................................................................ 61 8.1 Identification of the installation ......................................................................................................... 61 8.2 External hazards ................................................................................................................................. 62 8.3 Gas pipework passing through exterior walls ................................................................................. 62 8.4 Identification of pipework .................................................................................................................. 64 8.5 Specifications and requirements for joints ...................................................................................... 65 8.6 Joint suitability .................................................................................................................................... 69 8.7 Connections ........................................................................................................................................ 70 BS EN 15001-12009 EN 15001-12009 E 3 8.8 Corrosion protection ........................................................................................................................... 71 8.9 Handling and installation of pipework .............................................................................................. 78 8.10 Bending of pipes ................................................................................................................................. 80 8.11 Welding of supports and anchor points to carbon steel pipework ................................................ 81 8.12 Installation of pressure regulating systems ..................................................................................... 82 9 Documentation, inspection and testing ............................................................................................ 83 9.1 General ................................................................................................................................................. 83 9.2 Documentation .................................................................................................................................... 84 9.3 Inspection ............................................................................................................................................. 84 9.4 Testing .................................................................................................................................................. 87 Annex A inative Example schematic diagrams of installation options for gas pressure regulating systems .............................................................................................................................. 91 Annex B inative Examples of s for testing .............................................................................. 93 B.1 General ................................................................................................................................................. 93 B.2 Strength test on metallic pipework .................................................................................................... 93 B.3 Tightness test on metallic pipework ................................................................................................. 95 B.4 Strength and tightness test on PE pipework .................................................................................... 98 Annex C inative Flammable gases mixing systems .......................................................................... 101 C.1 Reverse flow ...................................................................................................................................... 101 C.2 Control of mixture composition ....................................................................................................... 101 C.3 Matching pressures of components for mixing ............................................................................. 103 Annex D inative Examples of supports .............................................................................................. 104 Annex E normative Materials ...................................................................................................................... 111 E.1 General ............................................................................................................................................... 111 E.2 Materials with a demonstrated safe history of application in this type of equipment ............... 112 Annex ZA inative Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC .......................................................................................... 115 Bibliography .................................................................................................................................................... 117 BS EN 15001-12009 EN 15001-12009 E 4 Foreword This document EN 15001-12009 has been prepared by Technical Committee CEN/TC 234 “Gas Infrastructure”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of
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