EN 13445-3 status as harmonised is important for the application for pressure equipment design in accordance with PED.
EN 13445-3 is a harmonised standard in acc. to the European Pressure Equipment Directive (PED) and contains specified requirements for design of unfired pressure vessels covered by EN 13445-1 and constructed of steels in acc. with EN 13445-2 .
Presumption of conformity
Pressure equipment or assemblies which are in conformity with harmonised standards or parts thereof the references of which have been published in the Official Journal of the European Union shall be presumed to be in conformity with the essential safety requirements covered by those standards or parts thereof, referred to in Annex I of PED.
Harmonised current status of EN 13445-3
The following table show the current harmonised status of the harmonised standards:
| Standard ( replaced) | Standard (new) | Title of standard | End of presumption of conformity the replaced standard | Date of start of presumption of conformity the new standard |
|---|---|---|---|---|
| EN 13445-3:2014, EN 13445-3:2014/A1:2015, EN 13445-3:2014/A2:2016, EN 13445-3:2014/A3:2017, EN 13445-3:2014/A4:2018, EN 13445-3:2014/A5:2018, EN 13445-3:2014/A6:2019, EN 13445-3:2014/A7:2019, EN 13445-3:2014/A8:2019 | EN 13445-3:2021 | Unfired pressure vessels – Part 3: Design | Jun. 21, 2023 | Dec. 21, 2021 |
Major changes of EN 13445-3:2021
- editorially revised;
- the “Normative references” were updated;
- Section 5.3.2.4 “Load combinations” was revised;
- Section 5.4. 2 “Vessels of all test groups, pressure loading predominantly non-cyclic” was revised;
- Section 16 “Actions other than pressure” was revised;
- Section 17 “Simplified assessment fatigue life” was revised;
- Annex C specifies requirements for the design of access and inspection openings, closing mechanisms and special locking elements.
- Annex GA (informative) “Alternative methods for the design of flanges and flanged joints with gaskets” was deleted;
- revised Annex J (normative) “Alternative methods for the design of heat exchangers tube sheets”;
- revised Annex R (informative) “Coefficients for creep rupture model equations for extrapolation of creep rupture strength”;
- added new Annex U (informative) “Guidance on negligibility of additional thermal cycles in fatigue and ratcheting assessment”.
Read More:
Current list of all published harmonised standards and specifications for the PED
