SIST EN 14917:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kompensatoren mit Metellischen Bälgen für DruckanwendungenCompensateurs de dilatation a soufflets métalliques pour tuyauteurs et appareils a pressionMetal bellows expansion joints for pressure applications23.040.99Drugi sestavni deli za cevovodeOther pipeline componentsICS:Ta slovenski standard je istoveten z:EN 14917:2009SIST EN 14917:2009en01-april-2009SIST EN 14917:2009SLOVENSKI
STANDARD



SIST EN 14917:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14917January 2009ICS 23.040.99 English VersionMetal bellows expansion joints for pressure applicationsCompensateurs de dilatation à soufflets métalliques pourappareils à pressionKompensatoren mit metallischen Bälgen fürDruckanwendungenThis European Standard was approved by CEN on 6 September 2008.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 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 language 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14917:2009: ESIST EN 14917:2009



EN 14917:2009 (E) 2 Contents Page Foreword .5Introduction .61Scope .72Normative references .73Terms and definitions . 104Classification . 114.1Classification of expansion joints . 114.1.1Axial . 114.1.2Angular . 114.1.3Lateral . 114.1.4Universal . 114.2Classification of the parts of expansion joints . 164.2.1Main pressure bearing parts (A) . 164.2.2Pressure parts other than main pressure-bearing parts (B) . 164.2.3Attachments to main pressure-bearing parts and to pressure parts (C) . 164.2.4Other parts (D) . 165Materials . 185.1General . 185.1.1Materials for pressure-bearing parts . 185.1.2Materials for parts attached to pressure-bearing parts . 185.1.3Documentation . 185.2Pressure-bearing parts . 185.2.1Bellows . 185.2.2Other pressure-bearing parts . 195.2.3Ductility . 195.2.4Brittle fracture . 195.3Material documentation . 206Design . 236.1General . 236.1.1Symbols and general factors . 236.1.2Basic design criteria . 306.1.3Additional loadings. 316.2Bellows . 326.2.1Purpose . 326.2.2Conditions of applicability . 326.2.3U-shaped unreinforced bellows . 376.2.3.1General . 376.2.4U-shaped reinforced bellows . 516.2.5Toroidal bellows. 586.2.6Specific design fatigue curves . 666.2.7Axial, lateral or angular displacement of bellows . 666.2.8Equivalent axial displacement per corrugation . 726.2.9Forces and moments on pressurised expansion joints . 766.2.10Torsion acting on bellows (unreinforced or reinforced). 866.3Hardware . 866.3.1General . 866.3.2Design parameters. 876.3.3Design temperature . 916.3.4Parts . 916.4Internal sleeve . 936.4.1Scope . 936.4.2Additional symbols . 936.4.3Flow velocity . 93SIST EN 14917:2009



EN 14917:2009 (E) 3 6.4.4Design rules . 957Manufacturing . 967.1General . 967.2Materials . 967.2.1General . 967.2.2Material traceability . 977.3Permanent joints . 977.3.1General . 977.3.2Process and personal . 977.3.3Repair and rework during manufacturing . 987.4Forming of the bellows . 987.4.1Forming processes . 987.4.2Heat treatment . 997.5Tolerances . 997.5.1General . 997.5.2Bellows . 997.5.3Expansion joint . 1007.6Production tests . 1018Testing, inspection and documentation . 1018.1Abbreviations . 1018.2General . 1018.3Documentation . 1018.4In-process inspection and testing . 1028.4.1General . 1028.4.2Materials . 1028.4.3Permanent joints . 1028.4.4Non-destructive testing of welds . 1048.5NDT methods . 1098.5.1General . 1098.5.2Acceptance criteria . 1108.5.3Personnel qualification and approval . 1108.5.4Reports . 1108.6Final assessment and documentation . 1138.6.1General . 1138.6.2Final inspection . 1138.7Documentation . 1158.7.1Final documentation package . 1158.7.2Declaration/certification . 1168.7.3Operating instructions . 1169Marking and labelling . 11610Handling and installation . 11710.1General instructions . 11710.2Packaging and storage . 11710.3Installation . 11710.4Unrestrained expansion joints . 11810.5Restrained expansions joints . 118Annex A (informative)
Categories of expansion joints . 119Annex B (normative)
Specification for materials 1.4828, 1.4876, 2.4360 and 2.4858 . 130Annex C (informative)
Incorporation of expansion joints into pressure vessels and piping . 135Annex D (informative)
Calculation methods for systems of pipes containing expansion joints . 153Annex E (informative)
Overview of the design of expansion bellows . 169Annex F (informative)
Procedure for setting-up a design fatigue curve . 174Annex G (informative)
Polynomial approximations for coefficients Cp, Cf, Cd . 183SIST EN 14917:2009



EN 14917:2009 (E) 4 Annex H (informative)
Required design data and information . 186Annex I (informative)
Expansion joints risk analyses . 187Annex J (informative)
Material properties and material groups . 189Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 195Bibliography . 197 SIST EN 14917:2009



EN 14917:2009 (E) 5 Foreword This document (EN 14917:2009) has been prepared by Technical Committee CEN/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 July 2009, and conflicting national standards shall be withdrawn at the latest by July 2009. 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. 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 the EU Directive 97/23/EC. For relationship with EU Directive 97/23/EC, see informative 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 Repub-lic, 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 the United Kingdom. SIST EN 14917:2009



EN 14917:2009 (E) 6 Introduction Metal bellows expansion joints are used as components in piping or as parts of pressure vessels. If an expansion joint is designed and manufactured according to this European Standard, the risk analysis is already undertaken, see Annex I.
SIST EN 14917:2009



EN 14917:2009 (E) 7 1 Scope This European Standard specifies the requirements for design, manufacture and installation of metal bellows expansion joints for pressure applications, i.e. maximum allowable pressure greater than 0,5 bar. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer-ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 287-1, Qualification test of welders — Fusion welding — Part 1: Steels EN 473, Non destructive testing — Qualification and certification of NDT personnel — General principles EN 571-1, Non destructive testing — Penetrant testing — Part 1: General principles EN 764-4, Pressure equipment — Part 4: Establishment of technical delivery conditions for metallic
materials EN 764-5:2002, Pressure equipment — Part 5: Compliance and inspection documentation of materials EN 970, Non-destructive examination of fusion welds — Visual examination EN 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN desig-nated — Part 1: Steel flanges EN 1289:1998, Non-destructive examination of welds — Penetrant testing of welds — Acceptance levels EN 1290, Non-destructive examination of welds — Magnetic particle examination of welds EN 1291:1998, Non-destructive examination of welds — Magnetic particle testing of welds —
Acceptance levels EN 1418, Welding personnel — Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials EN 1435:1997, Non-destructive examination of welds — Radiographic examination of welded joints EN 1593, Non-destructive testing — Leak testing — Bubble emission techniques EN 1712:1997, Non-destructive examination of welds — Ultrasonic examination of welded joints — Accep-tance levels EN 1713, Non-destructive examination of welds — Ultrasonic examination — Characterization of indications in welds EN 1714:1997, Non-destructive examination of welds — Ultrasonic examination of welded joints EN 1779:1999, Non-destructive testing — Leak testing — Criteria for method and technique selection EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature EN 10002-5, Metallic materials — Tensile testing — Part 5: Method of testing at elevated temperature EN 10028-1, Flat products made of steels for pressure purposes — Part 1: General requirements
SIST EN 14917:2009



EN 14917:2009 (E) 8 EN 10028-2, Flat products made of steels for pressure purposes — Part 2: Non-alloy and alloy steels with specified elevated temperature properties EN 10028-3, Flat products made of steels for pressure purposes — Part 3: Weldable fine grain steels, normalized EN 10028-4, Flat products made of steels for pressure purposes — Part 4: Nickel alloy steels with specified low temperature properties EN 10028-7:2007, Flat products made of steels for pressure purposes — Part 7: Stainless steels EN 10045-1, Metallic materials — Charpy impact test — Part 1: Test method EN 10204:2004, Metallic products — Types of inspection documents EN 10216-1, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 1: Non-alloy steel tubes with specified room temperature properties
EN 10216-2, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10216-3, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 3: Alloy fine grain steel tubes
EN 10216-4, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 4: Non-alloy and alloy steel tubes with specified low temperature properties EN 10217-1, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 1: Non-alloy steel tubes with specified room temperature properties EN 10217-2, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties EN 10217-3, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 3: Alloy fine grain steel tubes EN 10217-4, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 4: Electric welded non-alloy steel tubes with specified low temperature properties EN 10217-5, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties EN 10217-6, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 6: Submerged arc welded non-alloy steel tubes with specified low temperature properties EN 10222-2, Steel forgings for pressure purposes — Part 2: Ferritic and martensitic steels with specified elevated temperature properties EN 10222-3, Steel forgings for pressure purposes — Part 3: Nickel steels with specified low temperature properties EN 10222-4, Steel forgings for pressure purposes — Part 4: Weldable fine grain steels with high proof strength EN 10253-2, Butt-welding pipe fittings — Part 2: Non alloy and ferritic alloy steels with specific inspection re-quirements EN 10269, Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties EN 10272, Stainless steel bars for pressure purposes SIST EN 14917:2009



EN 14917:2009 (E) 9 EN 10273, Hot rolled weldable steel bars for pressure purposes with specified elevated temperature proper-ties EN 12517-1:2006, Non-destructive testing of welds — Part 1: Evaluation of welded joints in steel, nickel, tita-nium and their alloys by radiography — Acceptance levels EN 13184, Non-destructive testing — Leak testing — Pressure change method EN 13185, Non-destructive testing — Leak testing — Tracer gas method EN 13445-2:2002, Unfired pressure vessels — Part 2: Materials EN 13445-3, Unfired pressure vessels — Part 3: Design EN 13480-2:2002, Metallic industrial piping — Part 2: Materials EN 13480-3, Metallic industrial piping — Part 3: Design and calculation EN 13480-4, Metallic industrial piping — Part 4: Fabrication and installation EN ISO 643, Steels — Micrographic determination of the apparent grain size (ISO 643:2003) EN ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels — Part 2:
Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid (ISO 3651-2:1998) EN ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding ex-cluded) — Quality levels for imperfections (ISO 5817:2003, corrected version: 2005, including Technical Cor-rigendum 1:2006) EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1:2005) EN ISO 6520-1, Welding and allied processes — Classification of geometric imperfections in metallic
materials — Part 1: Fusion welding (ISO 6520-1:2007) EN ISO 9445:2006, Continuously cold-rolled stainless steel narrow strip, wide strip, plate/sheet and cut lengths — Tolerances on dimensions and form (ISO 9445:2002) EN ISO 9606-4, Approval testing of welders — Fusion welding — Part 4: Nickel and nickel alloys (ISO 9606-4:1999) EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding pro-cedure specification — Part 1: Arc welding (ISO 15609-1:2004) EN ISO 15610, Specification and qualification of welding procedures for metallic materials —
Qualification based on tested welding consumables (ISO 15610:2003) EN ISO 15613, Specification and qualification of welding procedures for metallic materials —
Qualification based on pre-production welding test (ISO 15613:2004) EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding pro-cedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004) ISO 15348:2002, Pipework — Metal bellows expansion joints — General EAM-0526-18 NiMo16Cr15W (2.4819) — Nickel-Molybdenum-chromium alloy — Flat products EAM-0526-28 NiMo16Cr16Ti (2.4610) — Nickel-Chromium-Molybdenum alloy — Flat products EAM-0526-40 NiCr22Mo9Nb-gr.1 (2.4856) — Nickel-Chromium-Molybdenum alloy — Flat products SIST EN 14917:2009



EN 14917:2009 (E) 10 EAM-0526-43-1 NiCr15Fe (2.4816) — Nickel-Chromium-Iron alloy — Hot and cold rolled flat products EAM-0526-43-2 NiCr15Fe (2.4816) — Nickel-Chromium-Iron alloy — Bars and rods 3 Terms and definitions For the purposes of this document, the basic terms and definitions given in ISO 15348:2002 and the following apply. 3.1 bellows flexible element consisting of one or more corrugation and the end tangents 3.2 corrugation (convolution) flexible unit of a bellows 3.3 end tangents straight un-corrugated portions at the ends of a bellows 3.4 reinforcing collar reinforcing sleeve or ring attached to the end tangent for reinforcement 3.5 assisting collar ring placed around the end tangents to facilitate welding 3.6 reinforcing and equalizing rings devices fitting snugly in the roots of the corrugations in order to reinforce the bellows against internal pressure and/or to
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