BS EN 1171-2002 工业阀门—铸铁闸阀.pdf

BRITISH STANDARD BS EN 11712002 Incorporating Corrigendum No. 1 Industrial valves Cast iron gate valves The European Standard EN 11712002 has the status of a British Standard ICS 23.060.30 Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS LicenseeBureau Veritas/5959906001, 11/08/2004 001827 MST Questions or comments about this message please call the Document Policy Group at 303-397-2295. --,,,,,,,,,,,,,,,,,,--,,,,,,,--- BS EN 11712002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 8 November 2002 BSI 9 June 2003 ISBN 0 580 40709 8 National foreword This British Standard is the official English language version of EN 11712002. It supersedes BS 51501990 and BS 51511974 which are withdrawn. The UK participation in its preparation was entrusted by Technical Committee PSE/7, Industrial valves, to Subcommittee PSE/7/3, Cast iron globe, gate and check valves, which has the responsibility to A list of organizations represented on this subcommittee 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 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 18, an inside back cover 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 14500 Corr. No. 1 9 June 2003Addition of supersession details to national foreword Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS LicenseeBureau Veritas/5959906001, 11/08/2004 001827 MST Questions or comments about this message please call the Document Policy Group at 303-397-2295. --,,,,,,,,,,,,,,,,,,--,,,,,,,--- EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1171 October 2002 ICS 23.060.30 English version Industrial valves - Cast iron gate valves Robinetterie industrielle - Robinets-vannes en fonteIndustiearmaturen - Schieber aus Gusseisen This European Standard was approved by CEN on 2 September 2002. 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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 2002 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 11712002 E Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS LicenseeBureau Veritas/5959906001, 11/08/2004 001827 MST Questions or comments about this message please call the Document Policy Group at 303-397-2295. --,,,,,,,,,,,,,,,,,,--,,,,,,,--- EN 11712002 E 2 Contents page Foreword......................................................................................................................................................................3 1Scope ..............................................................................................................................................................4 2Normative references ....................................................................................................................................4 3Terms and definitions....................................................................................................................................5 4Requirements.................................................................................................................................................6 4.1Design.............................................................................................................................................................6 4.2Functional characteristics ..........................................................................................................................11 4.3Strength torque............................................................................................................................................12 5Test procedures...........................................................................................................................................13 6Declaration of compliance..........................................................................................................................13 7Designation...................................................................................................................................................13 8Marking, preparation for storage and transportation...............................................................................14 8.1Marking .........................................................................................................................................................14 8.2Preparation for storage and transportation..............................................................................................14 Annex A inative Ination to be supplied by the customer...................................................................15 Annex B normative Strength torque test.............................................................................................................16 Annex C normative Comparison between EN and ISO cast iron material grades..........................................17 Annex ZA inative Clauses of this European standard addressing essential requirements or other provisions of EU Directives..............................................................................................................18 Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS LicenseeBureau Veritas/5959906001, 11/08/2004 001827 MST Questions or comments about this message please call the Document Policy Group at 303-397-2295. --,,,,,,,,,,,,,,,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 11712002 E 3 Foreword This document EN 11712002 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 April 2003, and conflicting national standards shall be withdrawn at the latest by April 2003. 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. For relationship with EU Directives, see inative annex ZA, which is an integral part of this document. In this European Standard the annex A is inative and the anns B and C are normative. 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, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS LicenseeBureau Veritas/5959906001, 11/08/2004 001827 MST Questions or comments about this message please call the Document Policy Group at 303-397-2295. --,,,,,,,,,,,,,,,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 11712002 E 4 1 Scope This European Standard specifies the requirements for cast iron gate valves with flanged ends, socket ends or spigot ends. This standard is applicable to cast iron gate valves mainly used for industrial and general-purpose applications. However, they can be used for other applications provided the requirements of the relevant perance standards are met. The range of nominal sizes covered is 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 1 000. The range of pressure designations covered is  isobaric PN 6; PN 10; PN 16; PN 25;  isomorphic, PS 10 bar to PS 1 bar at room temperature. 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 revisions of 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 19, Industrial valves – Marking of metallic valves. EN 5452002, Ductile iron pipes, fittings, accessories and their joints for water pipelines – Requirements and test s. EN 558-11995, 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 Definition of types of valves. EN 736-2, Valves – Terminology – Part 2 Definition of components of valves. EN 736-3, Valves – Terminology – Part 3 Definition 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 15611997, Founding – Grey cast irons. EN 15621997, Founding – Malleable cast irons. EN 15631997, Founding – Spheroidal graphite cast irons. prEN 12266-11, Industrial valves – Testing of valves - Part 1 Pressure tests, test procedures and acceptance criteria – Mandatory requirements. 1 To be published. Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS LicenseeBureau Veritas/5959906001, 11/08/2004 001827 MST Questions or comments about this message please call the Document Policy Group at 303-397-2295. --,,,,,,,,,,,,,,,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 11712002 E 5 EN 12266-2, Industrial valves – Testing of valves – Part 2 Tests, test procedures and acceptance criteria - Supplementary requirements. EN 12351, Industrial valves – Protective caps for valves with flanged connections. EN 12516-3, Valves – Shell design strength – Part 3 Experimental . EN 12570, Industrial valves – for sizing the operating element. EN ISO 5210, Industrial valves – Multi-turn valve actuator attachments ISO 52101991. ISO 1851988, Grey cast iron - Classification. ISO 10831987, Spheroidal graphite cast iron - Classification. ISO 59221981, Malleable cast iron. NOTEThis European Standard supports some of the essential requirements of the Pressure Equipment Directive 97/23/EC. The essential requirements covered are listed in annex ZA. It should be noted that this standard is not self- sufficient and should be used with the normative references listed herein. Reference should also be made to annex ZA in the relevant normative reference. 3 Terms and definitions For the purposes of this European Standard, the definitions of types of valves and components and the definitions of terms given in EN 736-1, EN 736-2 and EN 736-3 and the following terms and definitions apply. NOTEThe terms maximum allowable pressure, PS, and test pressure, PT, defined in EU Directive 97/23/EC PED are equivalent to the terms allowable pressure, ps, and test pressure, pt, defined in EN 736-3. 3.1 isomorphic series series of cast iron gate valves of a specified type and design having maximum allowable pressures which tend to decrease as the nominal size increases see Table 2 and having specific flanged end connections see 4.1.3.2.1 3.2 isobaric series series of cast iron gate valves of a specified type and design having the same maximum allowable pressure for all nominal sizes 3.3 strength torque torque applied directly to the operating mechanism or, when fitted, the operating device, which the valve is capable of withstanding Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS LicenseeBureau Veritas/5959906001, 11/08/2004 001827 MST Questions or comments about this message please call the Document Policy Group at 303-397-2295. --,,,,,,,,,,,,,,,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 11712002 E 6 4 Requirements 4.1 Design 4.1.1 Materials 4.1.1.1The body and bonnet materials shall be selected from Table 1. The limits of use given in the material standard shall be taken into account. Table 1 Body and bonnet materials Designation Graphite structure European Standard Rm N/mm2 Short nameNumber EN 15611997200 aEN-GJL-200EN-JL1030 Grey cast iron EN 15611997250EN-GJL-250EN-JL1040 EN 15631997350EN-GJS-350-22-LTEN-JS1015 EN 15631997350