Scope

This document defines the terms, definitions, quantities, symbols and units that are used throughout the EN 13445 series and gives general information on the design and manufacturing of vessels under this standard.

It also contains instructions on how to use the standard (Annex A) as we ll as an index which covers the whole standard (Annex B). This information is aimed to aid users of th e EN 13445 series.

This document applies to unfired pressure vessels with a maximum allowable pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.

This document is not applicable to pressure vessels of th e following types:

- vessels of riveted construction;

- vessels of lamellar cast iron or any other materials not included in Parts 2, 6, or 8 of the standard;

- multilayered, autofrettaged or pre-stressed vessels.

This document can be applied to the following pressure vessels, provided that account is taken of additional and/or alternative requirements resulting from the hazard analysis and from rules or inst ructions specific for:

- transportable vessels;

- items specifically designed for nuclear use;

- pressure vessels with a risk of overheating.

NOTE
EN 14222 covers electrically fired boilers made from stainless steel and can be used as an example of additional requirements for such vessels.

Other European sta ndards apply to industrial piping (EN 13480 series) and to water tube and shell boilers (EN 12952 series and EN 12953 series).

Annex ZA (informative)

Relationship between this European Standard and the essential requirements of Directive 2014/68/EU aimed to be covered

This European Standard has been prepared under a Commission's standardization request M/071 to provide one voluntary means of conforming to esse ntial requirem ents of Directive 2014/68/EU on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment.

Once this standard is cited in the Official Journal of the Eu ro pean Union under that Directive , compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption of conformi ty with the corres ponding essential requirements of that Directive , and associated EFTA regulations.

Table ZA.1- Correspondence between this European Standard and Directive 2014/68/EU

WARNING 1 - Presumption of conformity stays valid only as long as a reference to this European Standard is maintained in the list published in the Official Journal of the European Union. Users of this standard should consult frequently the latest list published in the Official Journal of the European Union.

WARNING 2 - Other Union legislation may be applicable to the product(s) falling within the scope of this standard.