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BRITISH STANDARD BS EN 13332006 Flanges and their joints Pipework components Definition and selection of PN The European Standard EN 13332006 has the status of a British Standard ICS 01.040.23; 23.040.01 Licensed Copy London South Bank University, London South Bank University, Thu Aug 03 050029 BST 2006, Uncontrolled Copy, c BSI BS EN 13332006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 April 2006 BSI 2006 ISBN 0 580 48174 3 National foreword This British Standard is the official English language version of EN 13332006. It supersedes BS EN 13331997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PSE/15, Flanges, which has the responsibility to A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests ined; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 and 3 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy London South Bank University, London South Bank University, Thu Aug 03 050029 BST 2006, Uncontrolled Copy, c BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1333 March 2006 ICS 01.040.23; 23.040.01Supersedes EN 13331996 English Version Flanges and their joints - Pipework components - Definition and selection of PN Brides et leurs assemblages - Composants de rseaux de tuyauteries - Dfinition et slection des PN Flansche und ihre Verbindungen - Rohrleitungsteile - Definition und Auswahl von PN This European Standard was approved by CEN on 23 January 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions English, French, German. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, 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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 13332006 E Licensed Copy London South Bank University, London South Bank University, Thu Aug 03 050029 BST 2006, Uncontrolled Copy, c BSI EN 13332006 E 2 Foreword This document EN 13332006 has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints”, the secretariat of which is held by DIN. 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 September 2006, and conflicting national standards shall be with- drawn at the latest by September 2006. This document supersedes EN 13331996. This document is based on the international standard ISO 72681983, but the misleading definition of “nominal pressure“ has been omitted as it is so loosely related to the maximum allowable pressure. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard Austria, Belgium, Cyprus, Czech Republic, Den- mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem- bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer- land and United Kingdom. Licensed Copy London South Bank University, London South Bank University, Thu Aug 03 050029 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN 13332006 E 3 1 Scope This European Standard gives the definition of PN when applied to components of a pipework system, as specified in those standards which use the PN designation system. This standard specifies the PN numbers which are used. 2 Terms and definitions For the purposes of this document, the following term and definition applies. 2.1 PN alphanumeric designation used for reference purposes related to a combination of mechanical and dimen- sional characteristics of a component of a pipework system. It comprises the letters PN followed by a dimensionless number. NOTE 1 The number following the letters PN does not represent a measurable value and should not be used for calcu- lation purposes except where specified in the relevant standard. NOTE 2 The designation PN is not meaningful unless it is related to the relevant component standard number. NOTE 3 The maximum allowable pressure of a pipework component depends on the PN number, the material and design of the component, its maximum allowable temperature, etc. The relevant European Component standards include tables of specified pressure/temperature ratings or, in minimum, include rules how to determine pressure/temperature ratings. NOTE 4 It is intended that all components with the same PN and DN designations have the same mating dimensions for compatible flange types. 3 Selection of PN The PN values shall be selected from PN 2,5 PN 25 PN 160 PN 6 PN 40 PN 250 PN 10 PN 63 PN 320 PN 16 PN 100 PN 400 Licensed Copy London South Bank University, London South Bank University, Thu Aug 03 050029 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m BS EN 13332006 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. 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