Unfired pressure vessels - Part 3: Design

This Part of this European Standard specifies requirements for the design of unfired pressure vessels covered by EN 13445-1:2009 and constructed of steels in accordance with EN 13445-2:2009. EN 13445-5:2009, Annex C specifies requirements for the design of access and inspection openings, closing mechanisms and special locking elements. NOTE This Part applies to design of vessels before putting into service. It may be used for in service calculation or analysis subject to appropriate adjustment.

Unbefeuerte Druckbehälter - Teil 3: Konstruktion

Dieser Teil 3 der Europäischen Norm EN 13445 legt die Regeln für die Konstruktion von Behältern aus Stählen nach EN 13445-2, fest.

Récipients sous pression non soumis à la flamme - Partie 3 : conception

La présente partie de l'EN 13445 s'applique à la conception des récipients construits en aciers conformes à la partie 2 de l'EN 13445.

Neogrevane tlačne posode - 3. del: Konstruiranje

Ta del tega evropskega standarda določa zahteve za konstruiranje neogrevane tlačne posode iz standarda EN 13445-1:2009, ki je izdelana iz jekel v skladu s standardom EN 13445-2:2009. Priloga C k standardu EN 13445-5:2009 določa zahteve za načrtovanje dostopa in odprtin za preglede, zapiralne mehanizme in posebne elemente za zaklepanje. OPOMBA: ta del se uporablja za konstruiranje posode pred zagonom. Uporabi se lahko za izračune med obratovanjem ali analize, ki se ustrezno prilagodijo.

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Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Unbefeuerte Druckbehälter - Teil 3: KonstruktionRécipients sous pression non soumis à la flamme - Partie 3 : conceptionUnfired pressure vessels - Part 3: Design23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 13445-3:2009SIST EN 13445-3:2009en,fr,de01-november-2009SIST EN 13445-3:2009SLOVENSKI
STANDARDSIST EN 13445-3:2002/A4:2005SIST EN 13445-3:2002/A3:2009SIST EN 13445-3:2002/A5:2006SIST EN 13445-3:2002/A8:2006SIST EN 13445-3:2002/A6:2006SIST EN 13445-3:2002/A2:2009SIST EN 13445-3:2002/A10:2008SIST EN 13445-3:2002/A1:2009SIST EN 13445-3:2002/A11:2007SIST EN 13445-3:2002/A17:2008SIST EN 13445-3:2002/A16:20091DGRPHãþD

SIST EN 13445-3:2009

English VersionUnfired pressure vessels - Part 3: DesignRécipients sous pression non soumis à la flamme - Partie 3: conceptionUnbefeuerte Druckbehälter - Teil 3: KonstruktionThis European Standard was approved by CEN on 30 June 2009.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:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13445-3:2009: ESIST EN 13445-3:2009

EN 13445-3:2009 (E) Issue 1 (2009-07) 2 Contents Page Foreword.6 1 Scope.7 2 Normative references.7 3 Terms and definitions.8 4 Symbols and abbreviations.10 5 Basic design criteria.12 5.1 General.12 5.2 Corrosion, erosion and protection.12 5.3 Load cases.14 5.4 Design methods.18 5.5 Thickness calculations (DBF).19 5.6 Joint coefficient.20 5.7 Design requirements of welded joints.21 6 Maximum allowed values of the nominal design stress for pressure parts.24 6.1 General.24 6.2 Steels (except castings), other than austenitic steels covered by 6.4 and 6.5, with a minimum rupture elongation, as given in the relevant technical specification for the material, below 30 %.25 6.3 Alternative route for steels (except castings), other than austenitic steels covered by 6.4 and 6.5, with a minimum rupture elongation, as given in the relevant technical specification for the material, below 30 %.25 6.4 Austenitic steels (except castings) with a minimum elongation after rupture, as given in the relevant technical specification for the material, from 30 % to 35 %.26 6.5 Austenitic steels (except castings) with a minimum rupture elongation, as given in the relevant technical specification for the material, from 35 %.26 6.6 Cast steels.27 7 Shells under internal pressure.28 7.1 Purpose.28 7.2 Specific definitions.28 7.3 Specific symbols and abbreviations.28 7.4 Cylindrical and spherical shells.28 7.5 Dished ends.29 7.6 Cones and conical ends.34 7.7 Nozzles which encroach into the knuckle region.42 8 Shells under external pressure.47 8.1 Purpose.47 8.2 Specific definitions.47 8.3 Specific symbols and definitions.47 8.4 General.50 8.5 Cylindrical shells.51 8.6 Conical shell.72 8.7 Spherical shells.80 8.8 Vessel ends.81 9 Openings in shells.82 9.1 Purpose.82 9.2 Specific definitions.82 9.3 Specific symbols and abbreviations.83 9.4 General.86 9.5 Isolated openings.98 9.6 Multiple openings.114 SIST EN 13445-3:2009

EN 13445-3:2009 (E)
Issue 1 (2009-07) 3 9.7 Openings close to a shell discontinuity.124 10 Flat ends.132 10.1 Purpose.132 10.2 Specific definitions.132 10.3 Specific symbols and abbreviations.132 10.4 Unpierced circular flat ends welded to cylindrical shells.134 10.5 Unpierced bolted circular flat ends.141 10.6 Pierced circular flat ends.145 10.7 Flat ends of non-circular or annular shape.149 11 Flanges.153 11.1 Purpose.153 11.2 Specific definitions.153 11.3 Specific symbols and abbreviations.153 11.4 General.156 11.5 Narrow face gasketed flanges.160 11.6 Full face flanges with soft ring type gaskets.175 11.7 Seal welded flanges.178 11.8 Reverse narrow face flanges.178 11.9 Reverse full face flanges.181 11.10 Full face flanges with metal to metal contact.185 12 Bolted domed ends.188 12.1 Purpose.188 12.2 Specific definitions.188 12.3 Specific symbols and abbreviations.188 12.4 General.188 12.5 Bolted domed ends with narrow face gaskets.188 12.6 Bolted domed ends with full face joints.190 13 Heat Exchanger Tubesheets.192 13.1 Purpose.192 13.2 Specific definitions.192 13.3 Specific symbols and abbreviations.192 13.4 U-tube tubesheet heat exchangers.195 13.5 Fixed tubesheet heat exchangers.209 13.6 Floating tubesheet heat exchangers.237 13.7 Tubesheet characteristics.254 13.8 Maximum permissible tube to tubesheet joint stress.261 13.9 Maximum permissible longitudinal compressive stress for tubes.262 13.10 Design of tubesheet flange extension with a narrow face gasket.265 13.11 Design of tubesheet flange extension with a full face gasket.268 13.12 Special tube-to-tubesheet welded joints.271 14 Expansion bellows.274 14.1 Purpose.274 14.2 Specific definitions.274 14.3 Specific symbols and abbreviations.276 14.4 Conditions of applicability.278 14.5 U-shaped unreinforced bellows.280 14.6 U-shaped reinforced bellows.294 14.7 Toroidal bellows.302 14.8 Fabrication.309 14.9 Inspection and testing.311 14.10 Bellows subjected to axial, lateral or angular displacements.313 15 Pressure vessels of rectangular section.318 15.1 Purpose.318 15.2 Specific definitions.318 15.3 Specific symbols and abbreviations.318 15.4 General.319 15.5 Unreinforced vessels.319 15.6 Reinforced vessels.325 15.7 Openings.332 SIST EN 13445-3:2009

EN 13445-3:2009 (E) Issue 1 (2009-07) 4 16 Additional non-pressure loads.334 16.1 Purpose.334 16.2 Specific definitions.334 16.3 Specific symbols and abbreviations.335 16.4 Local loads on nozzles in spherical shells.336 16.5 Local loads on nozzles in cylindrical shells.346 16.6 Line loads.354 16.7 Lifting lugs.360 16.8 Horizontal vessels on saddle supports.364 16.9 Horizontal vessels on ring supports.378 16.10 Vertical vessels on bracket supports.383 16.11 Vertical vessels with supporting legs.388 16.12 Vertical vessels with skirts.390 16.13 Vertical vessels with ring supports.405 16.14 Global loads.415 17 Simplified assessment of fatigue life.420 17.1 Purpose.420 17.2 Specific definitions.420 17.3 Specific symbols and abbreviations.422 17.4 Conditions of applicability.423 17.5 General.424 17.6 Determination of allowable number of pressure cycles.424 17.7 Assessment rule.450 17.8 Design and manufacture.450 17.9 Testing.451 18 Detailed assessment of fatigue life.452 18.1 Purpose.452 18.2 Specific definitions.452 18.3 Specific symbols and abbreviations.455 18.4 Limitations.457 18.5 General.459 18.6 Welded material.461 18.7 Unwelded components and bolts.466 18.8 Elastic-plastic conditions.469 18.9 Fatigue action.471 18.10 Fatigue strength of welded components.474 18.11 Fatigue strength of unwelded components.495 18.12 Fatigue strength of steel bolts.500 19 Creep design.503 19.1 Purpose.503 19.2 Specific definitions.503 19.3 Specific symbols and abbreviations.503 19.4 Design in the creep range.504 19.5 Nominal Design stress in the creep range.504 19.6 Weld joint factor in the creep range.509 19.7 Pressure loading of predominantly non-cyclic nature in the creep range.509 19.8 Design procedures for DBF.509 20 Design rules for reinforced flat walls.513 20.1 General.513 20.2 Stayed flat walls.513 20.3 Specific definitions for stayed flat walls.513 20.4 Required thickness of stayed flat walls.513 20.5 Required dimensions and layout of staybolts and stays.513 20.6 Requirements for threaded staybolts.513 20.7 Requirements for welded-in staybolts and welded stays.514 20.8 Tables for stayed flat walls.515 20.9 Figures for Stayed Flat Walls.516 21 Circular flat ends with radial reinforcement ribs.519 21.1 Purpose.519 21.2 Specific definitions.519 SIST EN 13445-3:2009

EN 13445-3:2009 (E)
Issue 1 (2009-07) 5 21.3 Specific symbols and abbreviations.521 21.4 Ends without additional peripheral bending moment.522 21.5 Ends with additional peripheral bending moment.524 21.6 Openings.526 21.7 Welds.526 21.8 Central Ring.527 Annex A (normative)
Design requirements for pressure bearing welds.528 Annex B (normative)
Design by Analysis – Direct Route.552 Annex C (normative)
Design by analysis - Method based on stress categories.582 Annex D (informative)
Verification of the shape of vessels subject to external pressure.601 Annex E (normative)
Procedure for calculating the departure from the true circle of cylinders and cones.608 Annex F (normative)
Allowable external pressure for vessels outside circularity tolerance.611 Annex G (normative)
Alternative design rules for flanges and gasketed flange connections.613 Annex GA (informative)
Alternative design rules for flanges and gasketed flange connections.660 Annex H (informative)
Gasket factors m and y.723 Annex I (informative)
Additional information on heat exchanger tubesheet design.726 Annex J (normative)
Alternative method for the design of heat exchanger tubesheets.730 Annex K (informative)
Additional information on expansion bellows design.775 Annex L (informative)
Basis for design rules related to additional non-pressure loads.781 Annex M (informative)
In service monitoring of vessels operating in fatigue or creep.783 Annex N (informative)
Bibliography to clause 18.786 Annex O (informative)
Physical properties of steels.787 Annex P (normative)
Classification of weld details to be assessed using principal stresses.795 Annex Q
Simplified procedure f

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