BS EN 12334-2001 工业阀门.铸铁单向阀.pdf

BRITISH STANDARD BS EN 123342001 Incorporating Corrigendum No. 1 and Amendment No. 1 Industrial valves Cast iron check valves The European Standard EN 123342001, with the incorporation of amendment A12004, has the status of a British Standard ICS 23.060.50 Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,,,--,,,,,,,--- BS EN 123342001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee on 15 March 2001 BSI 24 August 2004 ISBN 0 580 37042 9 National foreword This British Standard is the official English language version of EN 123342001, including corrigendum July 2002 and amendment A12004. It supersedes BS 51531974 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PSE/7, Valves, to Subcommittee PSE/7/3, Cast iron valves, which has the responsibility to A list of organizations represented on this subcommittee 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 the 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 to 11 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 14086 Corrigendum No. 1 20 January 2003Change to Annex ZA 1522824 August 2004Modification to subclauses 4.1.1.1, 4.1.2.1, 4.1.2.3, 4.2.1, 8.1.2, Annex A, Annex B and Annex ZA Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,,,--,,,,,,,--- 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12334 January 2001 A1 August 2004 ICS 23.060.50 Incorporating corrigendum July 2002 English version Industrial valves Cast iron check valves includes amendment A12004 Robinetterie industrielle Clapets de non-retour en fonte inclut l’amendement A12004 Industriearmaturen Rckflussverhinderer aus Gusseisen enthlt nderung A12004 This European Standard was approved by CEN on 28 December 2000, and amendment A1 was approved by CEN on 27 May 2004. 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 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 translation under the responsibility of a CEN member into its own language and notified to the Management Centre 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, 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 2001 CEN All rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 123342001 A12004 E Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,,,--,,,,,,,--- w w w . b z f x w . c o m Page 2 EN 123342001 B SI 02 J3002 yrauna Contents Page Foreword ...........................................................................................................................................................3 1 Scope.......................................................................................................................................................4 2 Normative references.............................................................................................................................4 3 Terms and definitions............................................................................................................................5 4 Requirements..........................................................................................................................................5 4.1 Design requirements..............................................................................................................................5 4.2 Functional characteristics.....................................................................................................................6 5 Test procedures......................................................................................................................................7 6 Declaration of compliance.....................................................................................................................7 7 Designation.............................................................................................................................................7 8 Marking, preparation for storage and transportation.........................................................................8 8.1 Marking....................................................................................................................................................8 8.2 Preparation for storage and transportation.........................................................................................8 Annex A inative Ination to be supplied by the purchaser.........................................................9 Annex B normative Comparison between EN and ISO cast iron material grades ...............................10 Annex ZA inative Clauses of this European Standard addressing Essential requirements or other provisions of EU Directives..................................................................11 Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,,,--,,,,,,,--- 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m Page 3 EN 123342001 B SI 02 J3002 yrauna Foreword This European Standard has been prepared by Technical Committee CEN/TC 69, Industrial valves, the Secretariat of which is held by AFNOR. 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 July 2001, and conflicting national standards shall be withdrawn at the latest by July 2001. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For relationship with EU Directives, see inative Annex ZA, which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Foreword to amendment A1 This document EN 123342001/A12004 has been prepared by Technical Committee CEN/TC 69, Industrial valves, the Secretariat of which is held by AFNOR. This Amendment to the 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 February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,,,--,,,,,,,--- w w w . b z f x w . c o m Page 4 EN 123342001 B SI 02 J3002 yrauna 1 Scope This European Standard specifies the requirements for cast iron check valves. This standard applies to cast iron check valves mainly used for industrial and general purpose applications. However, they may be used for other applications provided the requirements of the relevant perance standards are met. The range of nominal sizes covered is DN 10; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 800; DN 900; DN 1000. The range of pressure designations covered is PN 2,5; PN 6; PN 10; PN 16; PN 25. NOTE Back flow prevention anti-pollution check valves are outside the scope of this standard. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revision to any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies including amendments. EN 558-1, Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems Part 1 PN-designated valves. EN 736-1, Valves Terminology Part 1 Definitions of types of valves. EN 736-2, Valves Terminology Part 2 Definitions of components of valves. EN 736-3, Valves Terminology Part 3 Definitions of terms. EN 1092-2, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 2 Cast iron flanges. EN 1561, Founding Grey cast irons. EN 1563, Founding Spheroidal graphite cast irons. EN 12351, Industrial valves Protective caps for valves with flanged connections. prEN 192000, Industrial valves Marking of metallic valves. prEN 12266-11999, Industrial valves Testing of valves Part 1 Tests, test procedures and acceptance criteria to be fulfilled by every valve. prEN 12266-21999, Industrial valves Testing of valves Part 2 Supplementary tests, test procedures and acceptance criteria. prEN 12516-31999, Valves Shell design strength Part 3 Experimental . ISO 7-1, Pipe threads where pressure-tight joints are made on the threads Part 1 Dimensions, tolerances and designation. Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,,,--,,,,,,,--- 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m Page 5 EN 123342001 B SI 02 J3002 yrauna ISO 4200, Plain end steel tubes, welded and seamless General tables of dimensions and masses per unit length. 3 Terms and definitions For the purposes of this standard the terms and definitions of types of valves and components and the terms and definitions given in EN 736-1, EN 736-2 and EN 736-3 apply. 4 Requirements 4.1 Design requirements 4.1.1 Materials 4.1.1.1 The body and cover if any materials shall be selected from Table 1. The limits of use given in the material standard shall be taken into account. See 4.1.2.1 and 4.2.1. Table 1 Body and Cover Materials Designation Graphite Structure EN Rm N/mm2 Short name Number Grey cast iron 1561 1561 200a 250 EN-GJL-200 EN-GJL-250 EN-JL1030 EN-JL1040 Spheroidal graphite cast iron 1563 1563 1563 1563 1563 1563 1563 350 350 400 400 400 500 600 EN-GJS-350-22-LT EN-GJS-350-22-RT EN-GJS-400-18-LT EN-GJS-400-18-RT EN-GJS-400-15 EN-GJS-500-7 EN-GJS-600-3 EN-JS1015 EN-JS1014 EN-JS1025 EN-JS1024 EN-JS1030 EN-JS1050 EN-JS1060 545 420-5 EN-545-420-5 - a Grade 200 shall not be used for valves with PN 25 flanged end connections. 4.1.1.2 The manufacturer shall declare the materials of construction and any coatings of components in contact with the line fluid from which the suitability of the valve for the application can be determined. 4.1.1.3 Welding of grey cast iron and impregnation of castings of all materials is not permitted. 4.1.2 Pressure/temperature ratings 4.1.2.1 The pressure/temperature ratings shall be in accordance with EN 1092-2 for the equivalent ISO material grade and are not for conditions of hydraulic or external shock likely to cause brittle fracture. Annex B should be used to determine the equivalent ISO material grade for the EN material grades specified in Table 1. 4.1.2.2 Any restrictions of temperature and pressure below those specified in EN 1092-2, for example, those imposed by soft seals, special trims, shall be indicated on the valve see 8.1.2. Copyright British Standards Insti