BS EN 1349-2009 Industrial process control valves《工业过程控制阀》.pdf

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1、BS EN 1349:2009ICS 23.060.40; 25.040.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDIndustrial processcontrol valvesThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 December2009 BSI 2009ISBN 978 0 580 62

2、342 4Amendments/corrigenda issued since publicationDate CommentsBS EN 1349:2009National forewordThis British Standard is the UK implementation of EN 1349:2009. Itsupersedes BS EN 1349:2000 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PSE/18/4, Indust

3、rial valves, steam traps, actuators andsafety devices against excessive pressure - Control valves.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are respons

4、ible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 1349:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1349 November 2009 ICS 23.060.40 Supersedes EN 1349:2000English Version Industrial process control valves Robinets de r

5、gulation des processus industriels Stellgerte fr die Prozessregelung This European Standard was approved by CEN on 10 October 2009. 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 stan

6、dard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other

7、 language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia,

8、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 EUROPISCH

9、ES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1349:2009: EBS EN 1349:2009EN 1349:2009 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normati

10、ve references 53 Terms and definitions .73.1 Control valve 73.2 Control valve types 73.2.1 Control valves with a linear motion obturator 73.2.2 Control valves with a rotary motion obturator .73.3 Components .84 Symbols and abbreviations 95 Requirements .95.1 Design .95.1.1 General 95.1.2 Materials .

11、95.1.3 Pressure/temperature ratings .95.1.4 Dimensions 105.1.5 Operation . 125.2 Functional characteristics . 135.2.1 Shell design strength . 135.2.2 Flow coefficients . 135.2.3 Flow characteristic . 135.2.4 Seat Leakage . 136 Test procedure 136.1 Shell design strength . 136.2 Flow coefficient and i

12、nherent flow characteristic . 146.3 Seat leakage test . 146.4 Rated travel test 147 Dead band test 147.1 General . 147.2 Packing leakage test 147.3 Additional tests . 148 Inspection 149 Designation . 1510 Marking and preparation for transportation 1510.1 Marking 1510.2 Preparation for transportation

13、 . 15Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 16Bibliography . 17BS EN 1349:2009EN 1349:2009 (E) 3 Foreword This document (EN 1349:2009) has been prepared by Technical Committee CEN/TC 69 “Industrial Valves”, the sec

14、retariat 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 May 2010, and conflicting national standards shall be withdrawn at the latest by May 2010. Attention is drawn to

15、 the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1349:2000. This document has been prepared under a mandate given to CEN by the

16、European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards

17、organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portuga

18、l, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1349:2009EN 1349:2009 (E) 4 Introduction This European Standard has been established on the basis of different parts of EN 60534. The terminology specific to control valves is provided in EN 60534-1. The general

19、 valve terminology can be found in EN 736-1, EN 736-2 and EN 736-3. This document differs from EN 60534-3 by addition of basic series of face-to-face dimensions and addition of other control valve types. The testing requirements of EN 60534-4 are basically the same, but hydrostatic test makes refere

20、nce to EN 12266-1 which is an harmonised European Standard. The marking requirements refer to EN 19 and EN 60534-5. BS EN 1349:2009EN 1349:2009 (E) 5 1 Scope This European Standard applies to all industrial process control valves (hereafter referred to as control valves). This European Standard spec

21、ifies the design and performance requirements including material, pressure/temperature ratings, dimensions, testing and marking. The range of nominal size 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

22、; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 200. The range of PN is: PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400. The range of Class is: Class 150; Class 300; Class 600; Class 900; Class 1 500; Class 2 500; Class 4 500. Pinch valves are excluded from the sc

23、ope of this European Standard. Cast iron Class designated flanges are excluded from the scope of this European Standard. 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

24、 references, the latest edition of the referenced document (including any amendments) applies. EN 19:2002, Industrial valves Marking of metallic valves EN 558:2008, Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems PN and Class designated va

25、lves EN 736-1:1995, Valves Terminology Part 1: Definition of types of valves EN 736-2:1997, Valves Terminology Part 2: Definition of components of valves EN 736-3:2008, Valves Terminology Part 3: Definition of terms EN 1092-1, Flanges and their joints Circular flanges for pipes, valves, fittings and

26、 accessories, PN designated Part 1: Steel flanges EN 1092-2:1997, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 2: Cast iron flanges EN 1092-3:2003, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN d

27、esignated Part 3: Copper alloy flanges EN 1759-1, Flanges and their joint Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1: Steel flanges, NPS to 24 BS EN 1349:2009EN 1349:2009 (E) 6 EN 1759-3:2003, Flanges and their joints Circular flanges for pipes, valves, fit

28、tings and accessories, Class designated Part 3: Copper alloy flanges EN 10226-1, Pipe threads where pressure tight joints are made on the threads Part 1: Taper external threads and parallel internal threads Dimensions, tolerances and designation EN 12266-1:2003, Industrial valves Testing of valves P

29、art 1: Pressure tests, test procedures and acceptance criteria Mandatory requirements EN 12516-1:2005, Industrial valves Shell design strength Part 1: Tabulation method for steel valve shells EN 12516-2:2004, Industrial valves Shell design strength Part 2: Calculation method for steel valve shells E

30、N 12516-3:2002, Valves Shell design strength Part 3: Experimental method EN 12516-4:2008, Industrial valves Shell design strength Part 4: Calculation method for valve shells in metallic materials other than steel EN 12627, Industrial valves Butt welding ends for steel valves EN 12760, Valves Socket

31、welding ends for steel valves EN 12982, Industrial valves End-to-end and centre-to-end dimensions for butt welding end valves EN 60534-1:2005, Industrial-process control valves Part 1: Control valve terminology and general considerations (IEC 60534-1:2005) EN 60534-2-1, Industrial-process control va

32、lves Part 2-1: Flow capacity Sizing equations for fluid flow under installed conditions (IEC 60534-2-1:1998) EN 60534-2-3, Industrial-process control valves Part 2-3: Flow capacity Test procedures (IEC 60534-2-3:1997) EN 60534-2-4, Industrial-process control valves Part 2-4: Flow capacity Inherent f

33、low characteristics and rangeability (IEC 60534-2-4:2009) EN 60534-2-5, Industrial-process control valves Part 2-5: Flow capacity; Sizing equations for fluid flow through multistage control valves with interstage recovery (IEC 60534-2-5:2003) EN 60534-4:2006, Industrial-process control valves Part 4

34、: Inspection and routine testing (IEC 60534-4:2006) EN 60534-5:2004, Industrial-process control valves Part 5: Marking (IEC 60534-5:2004) EN 60534-9, Industrial-process control valves Part 9: Test procedure for response measurements from step inputs (IEC 60534-9:2007) EN ISO 228-1, Pipe threads wher

35、e pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) ASME B1.20.1:1983, Pipe Threads, General Purpose, Inch BS EN 1349:2009EN 1349:2009 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in E

36、N 736-1:1995, EN 736-2:1997, EN 736-3:2008 and EN 60534-1:2005 and the following apply. NOTE The definitions are in agreement with the definitions given in EN 60534-1:2005, but the word “control“ is added in the term to differentiate these definitions and the definitions given in EN 736-1:1995. It s

37、hould be noted that the word “closure member“ in EN 60534-1:2005 is replaced by the word “obturator“ in this European Standard and in the different parts of EN 736. An alternative term which is commonly used is “plug“. 3.1 Control valve 3.1.1 control valve power operated device which changes the flu

38、id flow rate in a process control system, consisting of a valve connected to an actuator that is capable of changing the position of an obturator in the valve in response to a signal from the controlling system Adapted from EN 60534-1:2005 3.2 Control valve types 3.2.1 Control valves with a linear m

39、otion obturator 3.2.1.1 globe control valve valve in which the obturator moves in a direction perpendicular to the plane of the seat 3.2.1.2 diaphragm control valve valve in which a flexible obturator isolates the line fluid from the actuating mechanism and provides a seal to the atmosphere 3.2.1.3

40、gate control valve valve whose obturator is a flat gate that moves in a direction parallel to the plane of the seat 3.2.2 Control valves with a rotary motion obturator 3.2.2.1 ball control valve valve with an obturator that is a sphere with an internal passage, and with the centre of the spherical s

41、urface coincident with the axis of the shaft 3.2.2.2 segmented ball control valve valve with an obturator that is a segment of a sphere, and with the centre of the spherical surface coincident with the axis of the shaft 3.2.2.3 plug control valve valve with an obturator that is cylindrical or conica

42、l, having an internal passage 3.2.2.4 eccentric plug control valve valve with an eccentric obturator that may be in the shape of a spherical or conical segment BS EN 1349:2009EN 1349:2009 (E) 8 3.2.2.5 butterfly control valve valve with a circular body and a rotary motion disk obturator, pivotally s

43、upported by its shaft NOTE The shaft and/or obturator may be centred or offset. 3.3 Components 3.3.1 cage element which, in a globe control valve, fully surrounds the obturator NOTE It provides guiding of the obturator and/or maintains the seat ring in the valve body. The shape of its flow passage m

44、ay be used to change the flow rate and to provide the flow characteristic. 3.3.2 eccentric plug obturator of an eccentric plug control valve NOTE Its seating surface may be spherical or conical. 3.3.3 leak-off connection piping connection provided to detect or collect the leakage, or to inject a flu

45、id to be used as a barrier, between two sets of packing 3.3.4 pilot plug secondary obturator included in a main obturator used to balance pressures between both sides of the main obturator 3.3.5 pilot spring spring used to assist the functioning of the pilot plug 3.3.6 balanced trim globe control va

46、lve trim designed to minimise the static and dynamic fluid flow forces acting on the obturator-stem assembly 3.3.7 seat retainer separate component used to retain the seat ring in the valve body 3.3.8 ball segment obturator of a segmented ball control valve, with a shape which is a segment of a sphe

47、rical surface 3.3.9 eccentric disk obturator of a butterfly control valve having an off set axis 3.3.10 extension bonnet bonnet, the length of which extends the packing chamber away from the flow area BS EN 1349:2009EN 1349:2009 (E) 9 4 Symbols and abbreviations Table 1 Symbols and abbreviations Sym

48、bol Description Units CVValve flow coefficient Non SI unit KVValve flow coefficient m3/h FLLiquid pressure recovery factor Dimensionless xTPressure differential ratio factor Dimensionless 5 Requirements 5.1 Design 5.1.1 General When the shaft/stem seal is provided with a bellows seal, it shall be eq

49、uipped with a secondary seal. 5.1.2 Materials 5.1.2.1 Shell The valve shell steel material shall be selected from EN 12516-1. The valve shell cast iron, copper alloy and aluminium material shall be selected from EN 12516-4. They shall be suitable for the design requirements and the operating conditions. NOTE Other steels for pressure equipments may be used by applying the rules of EN 12516-1:2005, A