BS EN 14341-2006工业阀门 止回阀Industrial valves - Steel check valves.pdf

BRITISH STANDARD BS EN 143412006 Industrial valves Steel check valves The European Standard EN 143412006 has the status of a British Standard ICS 23.060.50 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Jul 23 101341 GMT0000 2007, Uncontrolled Copy, c BSI BS EN 143412006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006 BSI 2006 ISBN 0 580 48719 9 National foreword This British Standard is the official English language version of EN 143412006. The UK participation in its preparation was entrusted by Technical Committee PSE/7, Valves, to Subcommittee PSE/7/2, Gate, globe and check valves made from steel or copper alloy, 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 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 14, an inside back cover 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 Institute Of Technology Tallaght, Institute of Technology, Mon Jul 23 101341 GMT0000 2007, Uncontrolled Copy, c BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14341 July 2006 ICS 23.060.50 English Version Industrial valves - Steel check valves Robinetterie industrielle - Clapets de non-retour en acierIndustriearmaturen - Rckflussverhinderer aus Stahl This European Standard was approved by CEN on 19 June 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 143412006 E Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Jul 23 101341 GMT0000 2007, Uncontrolled Copy, c BSI EN 143412006 E 2 Contents Page Foreword..............................................................................................................................................................3 1 Scope......................................................................................................................................................4 2 Normative references............................................................................................................................4 3 Terms and definitions ...........................................................................................................................6 4 Requirements.........................................................................................................................................6 4.1 Design.....................................................................................................................................................6 4.2 Functional characteristics....................................................................................................................9 5 Test procedures.................................................................................................................................. 10 6 Declaration of compliance................................................................................................................. 10 7 Designation ......................................................................................................................................... 10 8 Marking and preparation for storage and transportation............................................................... 11 8.1 Marking................................................................................................................................................ 11 8.2 Preparation for storage and transportation..................................................................................... 11 Annex A inative Ination to be supplied by the purchaser.......................................................... 13 Annex ZA inative Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC PED................................................................................ 14 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Jul 23 101341 GMT0000 2007, Uncontrolled Copy, c BSI EN 143412006 E 3 Foreword This document EN 143412006 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 January 2007, and conflicting national standards shall be withdrawn at the latest by January 2007. 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. 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Jul 23 101341 GMT0000 2007, Uncontrolled Copy, c BSI EN 143412006 E 4 1 Scope This European Standard specifies the requirements for steel check valves, which are forged, cast or fabricated in straight, angle or oblique pattern see EN 736-2 with end connections flanged or wafer, butt welding, socket welding, or threaded. This standard is applicable to steel check 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. Back flow prevention anti-pollution check valves are outside the scope of this standard. The range of nominal sizes covered is  DN 8; DN 10; DN 12; 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 750; DN 800; DN 900; DN 1000. DN 750 is used for Class designated valves only. DN 8 and DN 12 are not used for PN designated flanged end connections. DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections. Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65. The range of pressure designations covered is a for flanged end, wafer type and butt welding end valves PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; Class 150; Class 300; Class 600. b for socket welding end valves and threaded end valves PN 40; PN 63; PN 100; Class 600; Class 800. NOTE Class 800 is a Class designation widely used for socket welding and threaded end valves. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document including any amendments applies. EN 192002, Industrial valves Marking of metallic valves EN 287-12004, Qualification test of welders Fusion welding Part 1 Steels Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Jul 23 101341 GMT0000 2007, Uncontrolled Copy, c BSI EN 143412006 E 5 prEN 55820051, Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems PN and Class designated valves EN 736-11995, Valves Terminology Part 1 Definition of types of valves EN 736-21997, Valves Terminology Part 2 Definition of components of valves EN 736-31999, Valves Terminology Part 3 Definition of terms EN 1092-12001, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1 Steel flanges EN 14181997, Welding personnel Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials EN 1503-12000, Valves Materials for bodies, bonnets and covers Part 1 Steels specified in European Standards EN 1503-22000, Valves Materials for bodies, bonnets and covers Part 2 Steels other than those specified in European Standards EN 1759-12004, Flanges and their joint Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1 Steel flanges, NPS to 24 EN 10045-11990, Metallic materials Charpy impact test Part 1 Test EN 12266-12003, Industrial valves Testing of valves Part 1 Pressure tests, test procedures and acceptance criteria Mandatory requirements EN 12266-22002, Industrial valves Testing of valves Part 2 Tests, test procedures and acceptance criteria Supplementary requirements EN 123511999, Industrial valves Protective caps for valves with flanged connections EN 12516-12005, Industrial valves Shell design strength Part 1 Tabulation for steel valve shells EN 12516-22004, Industrial valves Shell design strength Part 2 Calculation for steel valve shells EN 12516-32002, Valves Shell design strength Part 3 Experimental EN 126271999, Industrial valves Butt welding ends for steel valves EN 127601999, Valves Socket welding ends for steel valves EN 129822000, Industrial valves End-to-end and centre-to-end dimensions for butt welding end valves EN ISO 228-12003, Pipe threads where pressure-tight joints are not made on the threads Part 1 Dimensions, tolerances and designation ISO 228-12000 EN ISO 156072003, Specification and qualification of welding procedures for metallic materials General rules ISO 156072003 1 Under preparation. Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Jul 23 101341 GMT0000 2007, Uncontrolled Copy, c BSI EN 143412006 E 6 ISO 7-11994, Pipe threads where pressure-tight joints are made on the threads Part 1 Dimensions, tolerances and designation ISO 42001991, Plain end steel tubes, welded and seamless General tables of dimensions and masses per unit length ASME B1.20.1, Pipe Threads, General Purpose Inch 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 736-11995, EN 736-21997 and EN 736-31999 apply. NOTE 1 The 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. NOTE 2 EN 736-1 illustrates four basic check valve types. The axial and lift types are based on the globe valve, the swing type is based on the butterfly valve and the diaphragm type is based on the diaphragm valve. Other check valve types are possible and are considered to be within the scope of this standard. 4 Requirements 4.1 Design 4.1.1 Materials 4.1.1.1 The body and cover materials shall be selected from those listed in EN 1503-1 and EN 1503-2. 4.1.1.2 All the internal parts in contact with the fluid shall be made of a material whose corrosion resistance to the fluid being carried is at least equal to the body and bonnet material. 4.1.2 Pressure/temperature ratings 4.1.2.1 The pressure/temperature ratings shall be as specified in EN 12516-1 for the particular body/bonnet material group. 4.1.2.2 The pressure/temperature ratings applicable to Class 800 socket welding and threaded end valves shall be the Class 600 rating for the applicable material group multiplied by the ratio of 800/600. 4.1.2.3 Restrictions of temperature and pressure below those specified in 4.1.2.1 and 4.1.2.2 for example, those imposed by soft seals and special trims shall be indicated on the valve see 8.1e. 4.1.2.4 For temperatures below the lowest temperature shown in the pressure/temperature rating tables in EN 12516-1 the maximum allowable pressure shall be not greater than the pressure corresponding to the lowest temperature in the rating tables. The use of valves at lower temperatures than shown in the rating tables is permitted providing the bending rupture energy of the body and cover material measured on three 10 mm 10 mm specimens in accordance with EN 10045-1, shall be not less than an average of 27 J at a temperature no higher than the lowest scheduled