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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 593:1998 Incorporat
2、ing Amendment No. 1 The European Standard EN 593:1998 has the status of a British Standard ICS 23.060.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Industrial valves Metallic butterfly valves Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:53 GMT+00:00 2006,
3、Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 June 1998 BSI 10-2000 ISBN 0 580 29199 5 BS EN 593:1998 Amendments issued since publication
4、 Amd. No.DateComments 10969October 2000Adds National annex NA. | | | National foreword This British Standard is the English language version of EN 593:1998. It supersedes BS 5155:1984 (1991) which is withdrawn. Class 125 cast iron valves are not included in EN 593:1998 and, in order to assist custom
5、ers and manufacturers, recommendations for this type of valve are provided in National annex NA. The UK participation in its preparation was entrusted by Technical Committee PSE/7, Valves, to Subcommittee PSE/7/4, Butterfly valves, which has the responsibility to: aid enquirers to understand the tex
6、t; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be ob
7、tained 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 Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find fac
8、ility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal oblig
9、ations. 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 notice displayed in this document indicates when the document was last issued. Sidelining in this document indicates the most recent changes by
10、amendment. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All
11、rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 593:1998 E EUROPEAN STANDARDEN 593 NORME EUROPE ENNE EUROPA ISCHE NORM January 1998 ICS 23.060.30 Descriptors: Industrial valves, butterfly valves, metals, specifications, dimensions, design,
12、 operating requirements, characteristics, tests, designation, marking English version Industrial valves Metallic butterfly valves Robinetterie industrielle Robinets me talliques a papillon Industriearmaturen Metallische Klappen This European Standard was approved by CEN on 11 December 1997. CEN memb
13、ers 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 applicati
14、on 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 s
15、ame 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, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffie
16、ldun sheffieldun, na, Mon Nov 06 06:40:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 593:1998 BSI 10-2000 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
17、the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 1998, and conflicting national standards shall be withdrawn at the latest by July 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of th
18、e 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. | | Contents Page Foreword2 1Scope3
19、 2Normative references3 3Definitions3 4Classification3 4.1DN range4 4.2PN and class range4 4.3Valve types4 5Requirements4 5.1Design4 5.2Functional characteristics6 6Testing and inspection6 6.1General6 6.2Pressure tests6 6.3Operation test6 6.4Other tests6 7Assessment of conformity6 8Marking Preparati
20、on for storage and transportation7 8.1Marking7 8.2Preparation for storage and transportation7 Annex A (informative) A.1Information to be supplied by the purchaser8 A.2Data sheet for butterfly valves8 Annex B (informative) Bibliography9 National annex NA (informative) Additional information11 License
21、d Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 593:1998 BSI 10-2000 1) DN 750 is for class designated valves only. 1 Scope This standard specifies requirements for butterfly valves having metallic bodies of designations PN 2,5 to PN 40 a
22、nd class 125 to class 300 inclusive, in the size range DN 40 to DN 2000 for use in flanged or butt welding piping systems and used for isolating, regulating or control applications. For application as industrial process control valves, see prEN 1349 and EN 60534-2-1. 2 Normative references This Euro
23、pean 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 the subsequent amendments to or revisions of any of these publicati
24、ons 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. EN 19, Marking of general purpose industrial valves. EN 558-1, Industrial valves Face-to-face and centre-to-face dimensions of
25、metal valves for use in flanged pipe systems Part 1: PN-designated valves. EN 558-2, Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems Part 2: Class-designated valves. EN 736-1, Valves Terminology Part 1: Definition of types of valves. EN 73
26、6-2, Valves Terminology Part 2: Definition of components of valves. prEN 736-3,Valves Terminology Part 3: Definition of terms. prEN 1092-1, Flanges and their joints Circular flanges for pipes, valves and fittings Part 1: Steel flanges PN designated. EN 1092-2, Flanges and their joints Circular flang
27、es for pipes, valves, fittings and accessories, PN designated Part 2: Cast iron flanges. prEN 1092-3, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories Part 3: Copper alloy and composite flanges, PN designated. prEN 1092-4, Flanges and their joints Circular flange
28、s for pipes, valves, fittings and accessories, PN designated Part 4: Aluminium alloy flanges. prEN 1267, Valves Test of flow resistance using water as test fluid. prEN 1349, Industrial process control valves. prEN 1503-1, Valves Shell materials Part 1: Steels. prEN 1503-2, Valves Shell materials Par
29、t 2: ISO steels. prEN 1503-3, Valves Shell materials Part 3: Cast irons. prEN 1503-4, Valves Shell materials Part 4: Copper alloys. prEN 1759-3, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, class designated Part 3: Copper alloy and composite flanges. prEN 12
30、116, Industrial valves Part-turn valve actuator attachment. prEN 12266-3, Industrial valves Technical conditions of delivery Part 3: Test procedures and acceptance criteria. EN 60534-2-1, Industrial process control valves Part 2: Flow capacity Section 1: Sizing equations for incompressible fluid flo
31、w under installed conditions. prEN ISO 10497, Testing of valves Fire type-testing requirements. (ISO 10497: 1992). 3 Definitions For the purposes of this European Standard, the definitions given in EN 736-1, EN 736-2, prEN 736-3 and the following definitions apply. 3.1 double flanged butterfly valve
32、 a butterfly valve having flanged ends for connection to flanges of adjacent components by individual bolting (see Figure 1) 3.2 wafer butterfly valve a butterfly valve intended for clamping between flanges of adjacent components NOTEDifferent body shapes are possible (see Figures 2, 3 and 4). 3.3 b
33、utt weld end butterfly valve a butterfly valve intended for butt welding into a pipe line (see Figure 5) 4 Classification 4.1 DN range The DN range 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 7501), DN 800, DN 90
34、0, DN 1000, DN 1200, DN 1400, DN 1600, DN 1800, DN 2000. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 593:1998 BSI 10-2000 NOTE.The outer shape of the flange can be circular or lugged. Figure 3 Single flange or lugged wafer body
35、 4.2 PN and class range The PN and class ranges are: PN 2,5, PN 6, PN 10, PN 16, PN 25, PN 40; class 125, class 150, class 300. 4.3 Valve types Valves are classified according to the body type: double flanged body (Figure 1); flangeless wafer body (Figure 2); single flange wafer body (Figure 3); lug
36、ged wafer body (Figure 3); U section wafer body (Figure 4); butt weld end body (Figure 5). Figures 1 to 5 give examples of body types: Figure 1 Double flanged body Figure 2 Flangeless wafer body Figure 4 U section wafer body Figure 5 Butt weld end body 5 Requirements 5.1 Design 5.1.1 Construction 5.
37、1.1.1 Body The body can be cast, forged or fabricated by welding. Flanges of double flanged valves and single flange wafer valves shall have bolt holes in accordance with prEN 1092-1, EN 1092-2, prEN 1092-3 and prEN 1092-4 for valves designated by PN and prEN 1759-3 for copper class designated valve
38、s. Threaded holes can be provided where the design of the valve precludes through flange bolting. NOTEFor class designated valves in steel and aluminium alloy, see annex B. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 593:1998 B
39、SI 10-2000 Flangeless wafer valves (see 4.3 and Figure 2) are normally intended for clamping between pipe flanges utilizing through bolts. The shape of wafer valve bodies shall be such that centering of the valves within the appropriate flange bolt circle is ensured. Where through bolting is not pra
40、cticable due to the valve design, threaded holes can be provided for individual bolting. Lugged or single flange wafer valves (see 4.3 and Figure 3) are supplied with threaded or through holes for individual flange bolting or end of the line assembly. The manufacturers literature shall be consulted
41、to determine if through bolting is possible. Linings or liners can be extended over the flange faces of the body to form a joint for the flange. 5.1.1.2 Obturator (disk) The manufacturer shall publish dimensions showing the protrusion of the obturator in the open position beyond the faces of the val
42、ve. 5.1.1.3 Seat The seat can be replaceable or non-replaceable. 5.1.1.4 Driving shaft The visible end of the driving shaft shall be designed or marked to indicate the orientation of the obturator. The sealing of the shaft shall remain tight to atmosphere when the operating device is removed. The sh
43、aft shall be retained in the body, so it cannot be blown out of the body when the means of actuation or replaceable shaft seals are removed. 5.1.1.5 Fire-tested design Valves designated as fire-tested design shall comply with prEN ISO 10497. If valves are required to be a fire-tested design, this sh
44、all be specified by the purchaser see annex A (informative). 5.1.1.6 Anti-static design Valves with anti-static design shall have electrical continuity between shaft, obturator and body. If valves are required to be an anti-static design, this requirement shall be specified by the purchaser see anne
45、x A (informative). 5.1.2 Materials 5.1.2.1 Body The body materials shall be selected from the grades listed in prEN 1503-1, prEN 1503-2, prEN 1503-3 and prEN 1503-4. NOTEMetallic materials can have a corrosion resistant coating. 5.1.2.2 Obturator Materials shall be suitable for the service condition
46、s and fluid to be conveyed, e.g. type of fluid, pressure and temperature. NOTEMetallic obturators can have a corrosion resistant coating. 5.1.2.3 Shaft The material should be selected from: steel with minimum 12 % of chromium; copper alloys; nickel alloys; nickel-copper alloys. NOTEThese materials c
47、an be coated to improve their friction or corrosion resisting properties. 5.1.2.4 Seat and liner Materials of seat and liner can be elastomeric, plastomeric, composite or metallic. The manufacturer shall publish the material type of the seat or liner. 5.1.3 Pressure/temperature ratings Where restric
48、tions on pressure and/or temperature are placed by the manufacturer on valves by reason of valve type, trim materials or other factors, the allowable pressure and/or temperature shall be marked on the valve (according to 8.1 and EN 19). NOTE It is recommended that the service conditions under which
49、a butterfly valve is to be used should be specified by the purchaser. See annex A (informative). 5.1.4 Dimensions and tolerances 5.1.4.1 Face-to-face and end-to-end The dimensions and tolerances shall be in accordance with EN 558-1 and EN 558-2. For the period when there is no European Standard for dimensions and tolerances between the ends of the butterfly valves to be welded, current national standards shall apply. 5.1.4.2 Flanges working
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