BS EN 1349-2009

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 1349 November 2009 ICS 23.060.40 Supersedes EN 1349:2000English Version Industrial process control valves Robinets de régulation des processus industriels Stellgeräte für 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 standard 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 language made by translation under the respons bility 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, 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 COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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: EEN 1349:2009 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative 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 .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 inherent 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 . 15Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 16Bibliography . 17EN 1349:2009 (E) 3 Foreword This document (EN 1349:2009) 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 May 2010, and conflicting national standards shall be withdrawn at the latest by May 2010. Attention is drawn to 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 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 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, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 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 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 reference to EN 12266-1 which is an harmonised European Standard. The marking requirements refer to EN 19 and EN 60534-5. EN 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 specifies 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; 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 scope 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 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 valves 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 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 designated — 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 ½ to 24 EN 1349:2009 (E) 6 EN 1759-3:2003, Flanges and their joints — Circular flanges for pipes, valves, fittings 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 — Part 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 EN 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 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 valves — 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 flow 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: 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 where 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 EN 1349:2009 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 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 should 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 fluid 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 motion 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 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 surface 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 conical, 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 EN 1349:2009 (E) 8 3.2.2.5 butterfly control valve valve with a circular body and a rotary motion disk obturator, pivotally supported 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 may 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 fluid 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 valve 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 spherical 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 EN 1349:2009 (E) 9 4 Symbols and abbreviations Table 1 — Symbols and abbreviations Symbol 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 equipped 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, Annex F. 5.1.2.2 Valve trim The materials for the valve trim components shall be selected to suit the operating conditions (inlet pressure, outlet pressure, fluid, temperature) and the valve type. 5.1.3 Pressure/temperature ratings The pressure temperature rating shall be in accordance with the European Standards specified in Table 2. Table 2 — Pressure temperature rating Standards Valve type Material Standard Flanged valve bodies or wafer valves Steel EN 12516-1 Cast iron EN 1092-2 Copper alloys EN 1092-3 or EN 1759-3 Welded end valves Steel EN 12516-1 NOTE Cast iron Class designated flanges are not covered in this European Standard. EN 1349:2009 (E) 10 5.1.4 Dimensions 5.1.4.1 Face-to-face The face-to-face dimensions of the control valves are included in EN 558. Table 3 indicates the basic series of face-to-face dimensions used for each control valve type. The face-to-face dimensions specified apply to control valves with end connections of the same size and type. Table 3 — Basic series of face-to-face dimensions for control valves Control valve type PN 10, PN 16 PN 25, PN 40 PN 63, PN 100 PN 160 PN 250 PN 320 PN 400 Globe, straight pattern 1, 37 1, 38 2, 39 2, 105 92, 106 92 56, 111 Globe, angle pattern 8