EN 13445-1-2014 pdf download.Unfired pressure vessels – Part 1 : General.
A.1 Purpose
EN 13445 is a new standard (first issued in 2002) and in many places uses new design, fabrication, inspection, and testing philosophies. This annex is designed to facilitate the introduction to the use of the standard.
This annex only gives a general overview of the requirements of the standard. Reference must always be made to the standard text itself, and not all requirements are necessarily mentioned in this annex.
A.2 General
The standard is harmonized under the Pressure Equipment Directive (97!231EC). This means that if an unfired pressure vessel meets the requirements of the standard, this pressure vessel can be presumed to conform to those essential safety requirements in Annex I of the Directive which are listed in the Annexes ZA of the individual parts of the standard.
In this connection, it should be understood that the standard is indivisible, The design and manufacture of unfired pressure vessels requires the application of all relevant Parts of the standard for the requirements of the standard to be fulfilled. Only in the case that the standard gives no information to specific parts of pressure vessels other standards may be used exceptioriaIy. In such a case, special attention should be paid to ensure that application of such other standard(s) is made consistent with the safety philosophy and the general safety requirements of EN 13445 (i.e. same nominal design stresses, same safety margins, etc.).
NOTE Part 7 and Part 9 are not mandatory parts of the standard In this sense,
This standard applies to unfired pressure vessels with the limitations and exclusions stated in Clause 1.
A.3 Prerequisites
Prior to designing and manufacturing a pressure vessel under the standard, the manufacturer must establish a number of prerequisites:
The conditions under which the vessel will be operating.
Load cases to be considered are enumerated in EN 134454:2014. 5.3.1 to 5.3.2.
The category of the vessel (Ito IV) as defined in the Directive. CR 13445-7:2002. 4.2 and CR 13445-7:2002, Annex A show how the category of a vessel is to be established.
NOTE I The category determines the type of inspection document required for the materials of the main pressure-bearing parts, as stated In Annex I, section 4.3 of the Directive (Inspection Documents are defined in EN 10204:2004). The category may also enfluence how particular material appraisals (see A.4.2) are to be performed.
A.4.1 General
Specific requirements for steels are given in Part 2.
NOTE Specific rules for spheroidal graphite cast iron and aluminium are given in EN 13445-6:2014 (see A.8 in this annex) and EN 13445-8:2014 (see A.9 in this annex), respectively. In some instances, references may be made from these parts to EN 13445-2:2014.
A.4.2 Permitted materials
Only matenals which are qualified for pressure equipment may be used. Qualification of matenals can be made in three different ways
Materials from European harmonized Standards, see EN 13445-2:2014, 4.3.1.
Certain materials supplied in accordance with European material Standards are accepted as qualified for use in pressure-bearing parts. These materials are enumerated in EN 13445-2:2014, Table E.2-1.
Materials with a European Approval for Materials (EAM). see EN 13445-2:2014, 4.3.2;
Materials with an EAM, which states that they can be used for products under the PED, are qualified for use in relevant products according to this standard.
EAMs are published in the Official Journal, and the European Commission maintains a list of EAMs on their web site.
NOTE 1 This web site is presently accessible under the address
httpJ/ec.eumpa.eu/enferprise/pressure_equipment/ped/materiais1pubIished,en.hrmi.
Materials with a Particular Material Appraisal (PMA). see EN 13445-2:2014, 4.3.3.
Materials, which have been subject to a PMA are qualified. This appraisal is carried Out by the manufacturer (arid in certain cases checked by a Notified Body).
NOTE 2 The European Commission and Member States have in November 2006 agreed on Guiding Principles for the contents of Particular Materials Appraisals. The document is published on, httpi/ec.europaeWenterprise/pressure_equipment/ped/matenals/index_enMtml.
Whichever method of qualification is used, the qualification does not necessarily cover the suitability of the material with regards to the environment and content of the vessel, i.e.. corrosion, erosion, etc. The manufacturer will always have to evaluate the matenals resistance to such action.
Whichever way the material has been qualified, all other rules in Part 2 will have to be fulfilled.EN 13445-1-2014 pdf download.
EN 13445-1-2014 pdf download
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