SIST EN 13942:2009
(Main)Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves (ISO 14313:2007 modified)
Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves (ISO 14313:2007 modified)
This International Standard specifies requirements and provides recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries.
This International Standard is not applicable to subsea pipeline valves, as they are covered by a separate International Standard (ISO 14723).
This International Standard is not applicable to valves for pressure ratings exceeding PN 420 (Class 2 500).
On-land supply systems used by the gas supply industry are excluded from the scope of this standard.
Erdöl- und Erdgasindustrie - Rohrleitungstransportsysteme - Rohrleitungsarmaturen (ISO 14313:2007, modifiziert)
Industries du pétrole et du gaz naturel - Systèmes de transport par conduites - Robinets de conduites (ISO 14313:2007 modifiée)
La présente Norme internationale spécifie les exigences et fournit des recommandations pour la conception, la fabrication, les essais et la documentation des appareils de robinetterie à tournant sphérique, des appareils de robinetterie à tournant, des robinets-vannes et des clapets de non-retour en vue d’une application dans les conduites satisfaisant aux exigences de l’ISO 13623 pour les industries du pétrole et du gaz naturel.
La présente Norme internationale ne s’applique pas aux robinets de conduites immergés car ils font l’objet d’une Norme internationale séparée (ISO 14723).
La présente Norme internationale ne s’applique pas aux robinets avec des valeurs de pression nominale supérieures à PN 420 (Class 2 500).
Les systèmes d’alimentation terrestres utilisés par l’industrie d’alimentation en gaz sont exclus du domaine d’application de la présente norme.
Industrija za predelavo nafte in zemeljskega plina - Transportni cevovodni sistemi - Armature cevovodov (ISO 14313:2007, spremenjen)
General Information
Relations
Related Packages
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrija za predelavo nafte in zemeljskega plina - Transportni cevovodni sistemi - Armature cevovodov (ISO 14313:2007, spremenjen)Erdöl- und Erdgasindustrie - Rohrleitungstransportsysteme - Rohrleitungsarmaturen (ISO 14313:2007, modifiziert)Industries du pétrole et du gaz naturel - Systèmes de transport par conduites - Robinets de conduites (ISO 14313:2007 modifiée)Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves (ISO 14313:2007 modified)75.200Petroleum products and natural gas handling equipment23.060.01Ventili na splošnoValves in generalICS:Ta slovenski standard je istoveten z:EN 13942:2009SIST EN 13942:2009en,fr01-maj-2009SIST EN 13942:2009SLOVENSKI
STANDARDSIST EN 13942:20041DGRPHãþD
SIST EN 13942:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13942January 2009ICS 23.040.01; 75.200Supersedes EN 13942:2003
English VersionPetroleum and natural gas industries - Pipeline transportationsystems - Pipeline valves (ISO 14313:2007 modified)Industries du pétrole et du gaz naturel - Systèmes detransport par conduites - Robinets de conduites (ISO14313:2007 modifiée)Erdöl- und Erdgasindustrie - Rohrleitungstransportsysteme- Rohrleitungsarmaturen (ISO 14313:2007, modifiziert)This European Standard was approved by CEN on 27 December 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13942:2009: ESIST EN 13942:2009
EN 13942:2009 (E) 2 Contents Page Foreword .31Scope .52Conformance .53Normative references .54Terms and definitions .75Symbols and abbreviated terms . 116Valve types and configurations . 127Design . 278Materials . 509Welding . 5210Quality control . 5511Pressure testing . 5612Coating . 5913Marking . 6014Preparation for shipment . 6215Documentation . 62Annex A (normative)
Requirements for non-destructive examination . 63Annex B (normative)
Supplementary test requirements . 67Annex C (informative)
Supplementary documentation requirements . 71Annex D (informative)
Purchasing guidelines . 72Annex E (informative)
Marking example . 79Bibliography . 81
SIST EN 13942:2009
EN 13942:2009 (E) 3 Foreword This document (EN 13942:2009) has been prepared by Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries”, 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 July 2009, and conflicting national standards shall be withdrawn at the latest by July 2009. 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 13942:2003. 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.
SIST EN 13942:2009
EN 13942:2009 (E) 4 Introduction This International Standard is the result of harmonizing the requirements of ISO 14313:1999 and API Spec 6D-2002[5]. The revision of ISO 14313 is developed based on input from both ISO/TC67/SC2 WG2 and API 6D TG technical experts. The technical revisions have been made In order to accommodate the needs of industry and to move this International Standard to a higher level of service to the petroleum and natural gas industry. Users of this International Standard should be aware that further or differing requirements can be needed for individual applications. This International Standard is not intended to inhibit a manufacturer from offering, or the purchaser from accepting, alternative equipment or engineering solutions for the individual application. This may be particularly applicable where there is innovative or developing technology. Where an alternative is offered, the manufacturer should identify any variations from this International Standard and provide details. ISO 14313:2007, developed within ISO/TC 67 SC 2, has been adopted as EN 13942:2009 (ISO 14313:2007 modified). The scope of ISO/TC 67/SC 2 is pipeline transportation systems for the petroleum and natural gas industries without exclusions. However in CEN, the scopes of CEN/TC 12 and CEN/TC 234 overlapped until 1995. This scope overlap caused problems for the parallel procedure for the above-mentioned items. The conflict in scope was resolved when both the CEN/Technical Committees and the CEN/BT took the following resolution: Resolution BT 38/1995: Subject: Revised scope of CEN/TC 12 “BT endorses the conclusions of the coordination meeting between CEN/TC 12 “Materials, equipment and offshore structures for petroleum and natural gas industries” and CEN/TC 234 “Gas supply” and modifies the CEN/TC 12 scope, to read: “Standardization of the materials, equipment and offshore structures used in drilling, production, refining and the transport by pipelines of petroleum and natural gas, excluding on-land supply systems used by the gas supply industry and those aspects of offshore structures covered by IMO requirement (ISO/TC 8). The standardization is to be achieved wherever possible by the adoption of ISO Standards.” Resulting from Resolution BT 38/1995, "gas supply on land" has been excluded from the scope of ISO 14313:2007 for the European adoption by CEN/TC 12.
SIST EN 13942:2009
EN 13942:2009 (E) 5 1 Scope This International Standard specifies requirements and provides recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries. This International Standard is not applicable to subsea pipeline valves, as they are covered by a separate International Standard (ISO 14723). This International Standard is not applicable to valves for pressure ratings exceeding PN 420 (Class 2 500). On-land supply systems used by the gas supply industry are excluded from the scope of this standard. 2 Conformance 2.1 Units of measurement In this International Standard, data are expressed in both SI units and USC units. For a specific order item, unless otherwise stated, only one system of units shall be used, without combining data expressed in the other system. For data expressed in SI units, a comma is used as the decimal separator and a space is used as the thousands separator. For data expressed in USC units, a dot (on the line) is used as the decimal separator and a comma is used as the thousands separator. 2.2 Rounding Except as otherwise required by this International Standard, to determine conformance with the specified requirements, observed or calculated values shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of ISO 31-0:1992, Annex B, Rule A. 2.3 Compliance to standard A quality system should be applied to assist compliance with the requirements of this International Standard. NOTE ISO/TS 29001 gives sector-specific guidance on quality management systems. The manufacturer shall be responsible for complying with all of the applicable requirements of this International Standard. It shall be permissible for the purchaser to make any investigation necessary in order to be assured of compliance by the manufacturer and to reject any material that does not comply. 3 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 287-1, Qualification test of welders — Fusion welding — Part 1: Steels EN 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 1: Steel flanges EN 10204, Metallic products — Type of inspection documents SIST EN 13942:2009
EN 13942:2009 (E) 6 ISO 31-0,1992, Quantities and units — Part 0: General principles ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation ISO 5208:1993, Industrial valves — Pressure testing of valves ISO 7268, Pipe components — Definition of nominal pressure ISO 9606-1, Approval testing of welders — Fusion welding — Part 1: Steels ISO 9712, Non-destructive testing — Qualification and certification of personnel ISO 10474, Steel and steel products — Inspection documents ISO 10497, Testing of valves — Fire type-testing requirements ISO 15156 (all parts), Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas production ISO 15607, Specification and qualification of welding procedures for metallic materials — General rules ISO 15609 (all parts), Specification and qualification of welding procedures for metallic materials — Welding procedure specification ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys ISO 23277, Non-destructive testing of welds — Penetrant testing of welds — Acceptance levels ISO 23278, Non-destructive testing of welds — Magnetic particle testing of welds — Acceptance levels ASME B1.20.11), Pipe Threads, General Purpose, Inch ASME B16.5-1996, Pipe Flanges and Flanged Fittings : NPS 1/2 through 24 ASME B16.10-2000, Face-to-Face and End-to-End Dimensions of Valves ASME B16.34-2004, Valves, Flanged, Threaded, and Welding End ASME B16.47-2006, Large Diameter Steel Flanges : NPS 26 Through NPS 60 Metric/Inch Standard ASME B31.4-2006, Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids ASME B31.8-2003, Gas Transmission and Distribution Piping Systems ASME Boiler and Pressure Vessel Code, Section V: Nondestructive Examination ASME Boiler and Pressure Vessel Code — Section VIII: Rules for Construction of Pressure Vessels Division 1, Rules for Construction of Pressure Vessels
1) American Society of Mechanical Engineers International, 345 East 47th Street, NY 10017-2392, USA SIST EN 13942:2009
EN 13942:2009 (E) 7 ASME Boiler and Pressure Vessel Code — Section VIII: Rules for Construction of Pressure Vessels Division 2: Alternative Rules ASME Boiler and Pressure Vessel Code — Section IX: Welding and Brazing Qualifications ASNT SNT-TC-1A2), Recommended Practice No. SNT-TC-1A — Personnel Qualification and Certification in Non-Destructive Testing ASTM A3203), Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products ASTM A388, Standard Practice for Ultrasonic Examination of Heavy Steel Forgings ASTM A435, Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates ASTM A577, Standard Specification for Ultrasonic Angle-Beam Examination of Steel Plates AWS QC14), Standard for AWS Certification of Welding Inspectors MSS SP-44, Steel Pipeline Flanges MSS SP-55, Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components — Visual Method for Evaluation of Surface Irregularities NACE TM0177-2005, Standard test method. Laboratory testing of metals for resistance to specific forms of environmental cracking in H2S environments NACE TM0284, Standard Test Method — Evaluation of Pipeline and Pressure Vessel Steels for Resistance to Hydrogen-Induced Cracking 4 Terms and definitions For the purposes of this document, the following terms and definitions apply. 4.1 ASME rating class numerical pressure design class defined in ASME B16.34 and used for reference purposes NOTE The ASME rating class is designated by the word “class” followed by a number. 4.2 bi-directional valve valve designed for blocking the fluid in both downstream and upstream directions 4.3 bleed drain or vent
2) American Society of Non-Destructive Testing, P.O. Box 28518, 1711 Arlingate Lane, Columbus, OH 43228-0518, USA. 3) ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, USA. 4) The American Welding Society, 550 NW LeJeune Road, Miami, FL 33126, USA. SIST EN 13942:2009
EN 13942:2009 (E) 8 4.4 block valve gate, plug or ball valve that blocks flow into the downstream conduit when in the closed position NOTE Valves are either single- or double-seated, bi-directional or uni-directional. 4.5 breakaway thrust breakaway torque maximum thrust or torque required to operate a valve at maximum pressure differential 4.6 by agreement agreed between manufacturer and purchaser 4.7 double-block-and-bleed valve DBB single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve with a means of venting/bleeding the cavity between the seating surfaces NOTE This valve does not provide positive double isolation when only one side is under pressure. See double-isolation-and-bleed valve (4.8). 4.8 double-isolation-and-bleed valve DIB single valve with two seating surfaces, each of which, in the closed position, provides a seal against pressure from a single source, with a means of venting/bleeding the cavity between the seating surfaces NOTE This feature can be provided in one direction or in both directions. 4.9 drive train all parts of a valve drive between the operator and the obturator, including the obturator but excluding the operator 4.10 flow coefficient Kv volumetric flow rate of water at a temperature between 5 °C (40 °F) and 40 °C (104 °F) passing through a valve and resulting in a pressure loss of 0,1 MPa (1 bar; 14.5 psi) NOTE 1 Kv is expressed in SI units of cubic metres per hour. NOTE 2 Kv is related to the flow coefficient Cv , expressed in USC units of US gallons per minute at 15,6 °C (60 °F) resulting in a 1 psi pressure drop as given by Equation (1): vv1,156CK= (1) 4.11 full-opening valve valve with an unobstructed opening, not smaller than the internal bore of the end connections 4.12 handwheel wheel consisting of a rim connected to a hub, for example by spokes, and used to manually operate a valve requiring multiple turns SIST EN 13942:2009
EN 13942:2009 (E) 9 4.13 locking device part or an arrangement of parts for securing a valve in the open and/or closed position 4.14 manual actuator manual operator wrench (lever) or hand-wheel with or without a gearbox 4.15 maximum pressure differential MPD maximum difference between the upstream and downstream pressure across the obturator at which the obturator may be operated 4.16 nominal pipe size NPS numerical imperial designation of size which is common to components in piping systems of any one size NOTE Nominal pipe size is designated by the abbreviation “NPS” followed by a number. 4.17 nominal pressure class PN numerical pressure design class as defined in ISO 7268 and used for reference purposes NOTE Nominal pressure (PN) class is designated by the abbreviation “PN” followed by a number. 4.18 nominal size DN numerical metric designation of size that is common to components in piping systems of any one size NOTE Nominal size is designated by the abbreviation “DN” followed by a number. 4.19 obturator closure member part of a valve, such as a ball, clapper, disc, gate or plug that is positioned in the flow stream to permit or prevent flow 4.20 operator device (or assembly) for opening or closing a valve 4.21 packing gland component used to compress the stem packing 4.22 position indicator device to show the position of the valve obturator 4.23 piggability capability of a valve to permit the unrestricted passage of a pig SIST EN 13942:2009
EN 13942:2009 (E) 10 4.24 powered actuator powered operator electric, hydraulic or pneumatic device bolted or otherwise attached to the valve for powered opening and closing of the valve 4.25 pressure class numerical pressure design class expressed in accordance with either the nominal pressure (PN) class or the ASME rating class NOTE In this International Standard, the pressure class is stated by the PN class followed by the ASME rating class between brackets. 4.26 pressure-containing parts parts, whose failure to function as intended results in a release of contained fluid into the environment 4.27 pressure-controlling parts parts, such as seat and obturator, intended to prevent or permit the flow of fluids 4.28 process-wetted parts parts exposed directly to the pipeline fluid 4.29 reduced-opening valve valve with the opening through the obturator smaller than at the end connection(s) 4.30 seating surfaces contact surfaces of the obturator and seat which ensure valve sealing 4.31 stem part that connects the obturator to the operator and which can consist of one or more components 4.32 stem extension assembly assembly consisting of the stem extension and the stem extension housing 4.33 support ribs or legs metal structure that provides a stable footing when the valve is set on a fixed base 4.34 through-conduit valve valve with an unobstructed and continuous cylindrical opening 4.35 uni-directional valve valve designed for blocking the flow in one direction only 4.36 unless otherwise agreed modification of the requirements of this International Standard unless the manufacturer and purchaser agree on a deviation SIST EN 13942:2009
EN 13942:2009 (E) 11 4.37 unless otherwise specified modification of the requirements of this International Standard unless the purchaser specifies otherwise 4.38 venturi plug valve valve with a substantially reduced opening through the plug and a smooth transition from each full-opening end to the reduced opening 5 Symbols and abbreviated terms 5.1 Symbols Cv flow coefficient in USC units Kv flow coefficient in metric units t thickness 5.2 Abbreviated terms BM base metal CE carbon equivalent DBB double-block-and-bleed DIB double isolation-and-bleed DN nominal size HAZ heat-affected zone HBW Brinell hardness, tungsten ball indenter HRC Rockwell C hardness HV Vickers hardness MPD maximum pressure differential MT magnetic-particle testing NDE non-destructive examination NPS nominal pipe size PN nominal pressure PQR (weld) procedure qualification record PT penetrant testing PWHT post-weld heat treatment RT radiographic testing
SIST EN 13942:2009
EN 13942:2009 (E) 12 SMYS specified minimum yield strength USC United States Customary (units) UT ultrasonic testing WM weld metal WPS weld procedure specification WPQ welder performance qualification
6 Valve types and configurations 6.1 Valve types 6.1.1 Gate valves Typical configurations for gate valves with flanged and welding ends are shown, for illustration purposes only, in Figures 1 and 2. Gate valves shall have an obturator that moves in a plane perpendicular to the direction of flow. The gate can be constructed of one piece for slab-gate valves or of two or more pieces for expanding-gate valves. Gate valves shall be provided with a back seat or secondary stem sealing feature in addition to the primary stem seal. 6.1.2 Lubricated and non-lubricated plug valves Typical configurations for plug valves with flanged and welding ends are shown, for illustration purposes only, in Figure 3. Plug valves shall have a cylindrical or conical obturator that rotates about an axis perpendicular to the direction of flow. 6.1.3 Ball valves Typical configurations for ball valves with flanged or welding ends are shown, for illustration purposes only, in Figures 4, 5 and 6. Ball valves shall have a spherical obturator that rotates on an axis perpendicular to the direction of flow. 6.1.4 Check valves Typical configurations for check valves are shown, for illustration purposes only, in Figures 7 to 13. Check valves can also be of the wafer, axial flow and lift type. Check valves shall have an obturator which responds automatically to block fluid in one direction. 6.2 Valve configurations 6.2.1 Full-opening valves Full-opening flanged-end valves shall be unobstructed in the fully opened position and shall have an internal bore as specified in Table 1. There is no restriction on the upper limit of valve bore sizes. SIST EN 13942:2009
EN 13942:2009 (E) 13 Full-opening through-conduit valves shall have a circular bore in the obturator that allows a sphere to pass with a nominal size not less than that specified in Table 1. Welding-end valves can require a smaller bore at the welding end to mate with the pipe. Valves with a non-circular opening through the obturator shall not be considered full opening. 6.2.2 Reduced-opening valves Reduced-opening valves with a circular opening through the obturator shall be supplied with a minimum bore as follows, unless otherwise specified: 1) valves DN 300 (NPS 12) and below: one size below nominal size of valve with bore according to Table 1; 2) valves DN 350 (NPS 14) to DN 600 (NPS 24): two sizes below nominal size of valve with bore according to Table 1; 3) valves above DN 600 (NPS 24): by agreement. EXAMPLE A DN 400 (NPS 16) – PN 250 (class 1500) reduced-opening ball valve has a minimum bore of 287 mm. Reduced-opening valves with a non-circular opening through the obturator shall be supplied with a minimum opening by agreement.
SIST EN 13942:2009
EN 13942:2009 (E) 14 Table 1 — Minimum bore for full-opening valves DN NPS Minimum bore by class mm PN 20 to 100 (Class 150 to 600) PN 150 (Class 900) PN 250 (Class 1 500) PN 420 (Class 2 500) 15 20 25 32 40 50 65 80 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1 000 1 050 1 200 1 350 1 400 1 500 ½ ¾ 1 1¼ 1½ 2 2½ 3 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 48 54 56 60 13 19 25 32 38 49 62 74 100 150 201 252 303 334 385 436 487 538 589 633 684 735 779 830 874 925 976 1 020 1 166 1 312 1 360 1 458 13 19 25 32 38 49 62 74 100 150 201 252 303 322 373 423 471 522 570 617 665 712 760 808 855 904 956 1 006 1 149 — — — 13 19 25 32 38 49 62 74 100 144 192 239 287 315 360 406 454 500 546 594 641 686 730 775 819 — — — — — — — 13 19 25 32 38 42 52 62 87 131 179 223 265 292 333 374 419 — — — — — — — — — — — — — — — SIST EN 13942:2009
EN 13942:2009 (E) 15
Key 1 stem indicator 2 stem enclosure 3 handwheel 4 yoke nut 5 yoke 6 stem 7 yoke bolting 8 stem packing 9 relief valve 10 bonnet 11 bonnet bolting 12 gate guide 13 gate assembly 14 seat ring 15 body 16 support ribs or legs 17 raised face 18 welding end 19 ring joint A raised-face face-to-facedimension B welding-end end-to-enddimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C.Figure 1 — Expanding-gate/rising-stem gate valve SIST EN 13942:2009
EN 13942:2009 (E) 16
Key 1 stem indicator 2 stem enclosure 3 hand-wheel 4 yoke nut 5 yoke 6 stem 7 yoke bolting 8 stem packing 9 relief valve 10 bonnet 11 bonnet bolting 12 gate
13 seat ring 14 body 15 support ribs or legs 16 raised face 17 welding end 18 ring joint A raised-face face-to-face dimension B welding-end end-to-end dimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C. Figure 2 — Slab-gate/through-conduit rising-stem gate valve SIST EN 13942:2009
EN 13942:2009 (E) 17
Key 1 lubricator screw 2 gland studs and nuts 3 gland 4 cover studs and nuts 5 cover 6 cover gasket 7 stem packing 8 lubricant check valve 9 plug 10 body 11 stop collar 12 raised face 13 welding end 14 ring joint A raised-face face-to-face dimension B welding-end end-to-end dimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C. Figure 3 — Plug valve SIST EN 13942:2009
EN 13942:2009 (E) 18
Key 1 stem seal 2 bonnet cover 3 bonnet 4 body bolting 5 body 6 seat ring 7 stem 8 ball 9 raised face 10 welding end 11 ring joint A raised-face face-to-face dimension B welding-end end-to-end dimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C. Figure 4 — Top-entry ball valve SIST EN 13942:2009
EN 13942:2009 (E) 19
Key 1 stem 2 body cover 3 stem seal 4 body 5 seat ring 6 ball 7 body bolting 8 closure 9 raised face 10 welding end 11 ring joint A raised-face face-to-face dimension B welding-end end-to-end dimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C. Figure 5 — Three-piece ball valve SIST EN 13942:2009
EN 13942:2009 (E) 20
Key 1 stem 2 body cover 3 stem seal 4 body 5 seat ring 6 ball 7 closure 8 raised face 9 welding end 10 ring joint A raised-face face-to-face dimension B welding-end end-to-end dimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C. Figure 6 — Welded-body ball valve SIST EN 13942:2009
EN 13942:2009 (E) 21
Key 1 cover bolting 2 cover 3 body 4 clapper disc arm 5 shaft 6 clapper disc 7 seat ring 8 support ribs or legs 9 raised face 10 welding end 11 ring joint 12 direction of flow A raised-face face-to-face dimension B welding-end end-to-end dimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C. Figure 7 — Reduced-opening swing check valve SIST EN 13942:2009
EN 13942:2009 (E) 22
Key 1 cover bolting 2 cover 3 body 4 clapper disc arm 5 shaft 6 seat ring 7 clapper disc 8 support ribs or legs 9 raised face 10 welding end 11 ring joint 12 direction of flow A raised-face face-to-face dimension B welding-end end-to-end dimension C ring-joint end-to-end dimension NOTE See Tables 2 to 6 for dimensions A, B and C. Figure 8 — Full-opening swing check valve SIST EN 13942:2009
EN 13942:2009 (E) 23
Key 1 body 2 hinge 3 nut 4 closure pl
...
SLOVENSKI STANDARD
kSIST prEN 13942:2008
01-oktober-2008
Industrija nafte in zemeljskega plina - Transportni cevovodni sistemi - Armature
cevovodov (ISO 14313:2007, spremenjen)
Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves
(ISO 14313:2007 modified)
Erdöl- und Erdgasindustrie - Rohrleitungstransportsysteme - Rohrleitungsarmaturen (ISO
14313:2007, modifiziert)
Industries du pétrole et du gaz naturel - Systèmes de transport par conduites - Robinets
de conduites (ISO 14313:2007 modifiée)
Ta slovenski standard je istoveten z: prEN 13942
ICS:
23.060.01 Ventili na splošno Valves in general
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
kSIST prEN 13942:2008 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
kSIST prEN 13942:2008
---------------------- Page: 2 ----------------------
kSIST prEN 13942:2008
EUROPEAN STANDARD
FINAL DRAFT
prEN 13942
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2008
ICS 23.060.01; 75.200 Will supersede EN 13942:2003
English Version
Petroleum and natural gas industries - Pipeline transportation
systems - Pipeline valves (ISO 14313:2007 modified)
Industries du pétrole et du gaz naturel - Systèmes de Erdöl- und Erdgasindustrie - Rohrleitungstransportsysteme
transport par conduites - Robinets de conduites (ISO - Rohrleitungsarmaturen (ISO 14313:2007, modifiziert)
14313:2007 modifiée)
This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical
Committee CEN/TC 12.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 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.
: This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
Warning
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13942:2008: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Contents Page
Foreword.3
1 Scope .5
2 Conformance.5
3 Normative references .5
4 Terms and definitions .7
5 Symbols and abbreviated terms .11
6 Valve types and configurations.12
7 Design .27
8 Materials .50
9 Welding .52
10 Quality control.55
11 Pressure testing.56
12 Coating.59
13 Marking .60
14 Preparation for shipment .62
15 Documentation.62
Annex A (normative) Requirements for non-destructive examination .63
Annex B (normative) Supplementary test requirements .67
Annex C (informative) Supplementary documentation requirements .71
Annex D (informative) Purchasing guidelines.72
Annex E (informative) Marking example .79
Bibliography .81
2
---------------------- Page: 4 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Foreword
This document (prEN 13942:2008) has been prepared by Technical Committee CEN/TC 12 “Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries”, the secretariat of
which is held by AFNOR.
This document is currently submitted to the Unique Acceptance Procedure.
This document will supersede EN 13942:2003.
3
---------------------- Page: 5 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Introduction
This International Standard is the result of harmonizing the requirements of ISO 14313:1999 and
[5]
API Spec 6D-2002 .
The revision of ISO 14313 is developed based on input from both ISO/TC67/SC2 WG2 and
API 6D TG technical experts. The technical revisions have been made In order to accommodate the needs of
industry and to move this International Standard to a higher level of service to the petroleum and natural gas
industry.
Users of this International Standard should be aware that further or differing requirements can be needed for
individual applications. This International Standard is not intended to inhibit a manufacturer from offering, or
the purchaser from accepting, alternative equipment or engineering solutions for the individual application.
This may be particularly applicable where there is innovative or developing technology. Where an alternative
is offered, the manufacturer should identify any variations from this International Standard and provide details.
ISO 14313:2007, developed within ISO/TC 67 SC 2, has been adopted as prEN 13942:2008 (ISO 14313:2007
modified).
The scope of ISO/TC 67/SC 2 is pipeline transportation systems for the petroleum and natural gas industries
without exclusions. However in CEN, the scopes of CEN/TC 12 and CEN/TC 234 overlapped until 1995. This
scope overlap caused problems for the parallel procedure for the above-mentioned items. The conflict in
scope was resolved when both the CEN/Technical Committees and the CEN/BT took the following resolution:
Resolution BT 38/1995:
Subject: Revised scope of CEN/TC 12
“BT endorses the conclusions of the coordination meeting between CEN/TC 12 “Materials, equipment and
offshore structures for petroleum and natural gas industries” and CEN/TC 234 “Gas supply” and modifies the
CEN/TC 12 scope, to read:
“Standardization of the materials, equipment and offshore structures used in drilling, production, refining and
the transport by pipelines of petroleum and natural gas, excluding on-land supply systems used by the gas
supply industry and those aspects of offshore structures covered by IMO requirement (ISO/TC 8).
The standardization is to be achieved wherever possible by the adoption of ISO Standards.”
Resulting from Resolution BT 38/1995, "gas supply on land" has been excluded from the scope of
ISO 14313:2007 for the European adoption by CEN/TC 12.
4
---------------------- Page: 6 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
1 Scope
This International Standard specifies requirements and provides recommendations for the design,
manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline
systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries.
This International Standard is not applicable to subsea pipeline valves, as they are covered by a separate
International Standard (ISO 14723).
This International Standard is not applicable to valves for pressure ratings exceeding PN 420 (Class 2 500).
On-land supply systems used by the gas supply industry are excluded from the scope of this standard.
2 Conformance
2.1 Units of measurement
In this International Standard, data are expressed in both SI units and USC units. For a specific order item,
unless otherwise stated, only one system of units shall be used, without combining data expressed in the
other system.
For data expressed in SI units, a comma is used as the decimal separator and a space is used as the
thousands separator. For data expressed in USC units, a dot (on the line) is used as the decimal separator
and a comma is used as the thousands separator.
2.2 Rounding
Except as otherwise required by this International Standard, to determine conformance with the specified
requirements, observed or calculated values shall be rounded to the nearest unit in the last right-hand place of
figures used in expressing the limiting value, in accordance with the rounding method of ISO 31-0:1992,
Annex B, Rule A.
2.3 Compliance to standard
A quality system should be applied to assist compliance with the requirements of this International Standard.
NOTE ISO/TS 29001 gives sector-specific guidance on quality management systems.
The manufacturer shall be responsible for complying with all of the applicable requirements of this
International Standard. It shall be permissible for the purchaser to make any investigation necessary in order
to be assured of compliance by the manufacturer and to reject any material that does not comply.
3 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.
ISO 31-0,1992, Quantities and units — Part 0: General principles
ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions,
tolerances and designation
5
---------------------- Page: 7 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
ISO 5208:1993, Industrial valves — Pressure testing of valves
ISO 7268, Pipe components — Definition of nominal pressure
ISO 9606-1, Approval testing of welders — Fusion welding — Part 1: Steels
ISO 9712, Non-destructive testing — Qualification and certification of personnel
ISO 10474, Steel and steel products — Inspection documents
ISO 10497, Testing of valves — Fire type-testing requirements
ISO 15156 (all parts), Petroleum and natural gas industries — Materials for use in H S-containing
2
environments in oil and gas production
ISO 15607, Specification and qualification of welding procedures for metallic materials — General rules
ISO 15609 (all parts), Specification and qualification of welding procedures for metallic materials — Welding
procedure specification
ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 23277, Non-destructive testing of welds — Penetrant testing of welds — Acceptance levels
ISO 23278, Non-destructive testing of welds — Magnetic particle testing of welds — Acceptance levels
1)
ASME B1.20.1 , Pipe Threads, General Purpose, Inch
ASME B16.5-1996, Pipe Flanges and Flanged Fittings : NPS 1/2 through 24
ASME B16.10-2000, Face-to-Face and End-to-End Dimensions of Valves
ASME B16.34-2004, Valves, Flanged, Threaded, and Welding End
ASME B16.47-2006, Large Diameter Steel Flanges : NPS 26 Through NPS 60 Metric/Inch Standard
ASME B31.4-2006, Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids
ASME B31.8-2003, Gas Transmission and Distribution Piping Systems
ASME Boiler and Pressure Vessel Code, Section V: Nondestructive Examination
ASME Boiler and Pressure Vessel Code — Section VIII: Rules for Construction of Pressure Vessels
Division 1, Rules for Construction of Pressure Vessels
ASME Boiler and Pressure Vessel Code — Section VIII: Rules for Construction of Pressure Vessels
Division 2: Alternative Rules
ASME Boiler and Pressure Vessel Code — Section IX: Welding and Brazing Qualifications
2)
ASNT SNT-TC-1A , Recommended Practice No. SNT-TC-1A — Personnel Qualification and Certification in
Non-Destructive Testing
th
1) American Society of Mechanical Engineers International, 345 East 47 Street, NY 10017-2392, USA
6
---------------------- Page: 8 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
3)
ASTM A320 , Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-
Temperature Service
ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A388, Standard Practice for Ultrasonic Examination of Heavy Steel Forgings
ASTM A435, Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
ASTM A577, Standard Specification for Ultrasonic Angle-Beam Examination of Steel Plates
4)
AWS QC1 , Standard for AWS Certification of Welding Inspectors
5)
EN 287-1 , Qualification test of welders — Fusion welding — Part 1: Steels
EN 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN
designated — Part 1: Steel flanges
EN 10204:2004, Metallic products — Type of inspection documents
MSS SP-44, Steel Pipeline Flanges
MSS SP-55, Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping
Components — Visual Method for Evaluation of Surface Irregularities
NACE TM0177-2005, Standard test method. Laboratory testing of metals for resistance to specific forms of
environmental cracking in H S environments
2
NACE TM0284, Standard Test Method — Evaluation of Pipeline and Pressure Vessel Steels for Resistance to
Hydrogen-Induced Cracking
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4.1
ASME rating class
numerical pressure design class defined in ASME B16.34 and used for reference purposes
NOTE The ASME rating class is designated by the word “class” followed by a number.
4.2
bi-directional valve
valve designed for blocking the fluid in both downstream and upstream directions
4.3
bleed
drain or vent
2) American Society of Non-Destructive Testing, P.O. Box 28518, 1711 Arlingate Lane, Columbus, OH 43228-0518,
USA.
3) ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, USA.
4) The American Welding Society, 550 NW LeJeune Road, Miami, FL 33126, USA.
5) CEN, European Committee for Standardization, Central Secretariat, Rue de Stassart 36, B-1050, Brussels, Belgium.
7
---------------------- Page: 9 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
4.4
block valve
gate, plug or ball valve that blocks flow into the downstream conduit when in the closed position
NOTE Valves are either single- or double-seated, bi-directional or uni-directional.
4.5
breakaway thrust
breakaway torque
maximum thrust or torque required to operate a valve at maximum pressure differential
4.6
by agreement
agreed between manufacturer and purchaser
4.7
double-block-and-bleed valve
DBB
single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both
ends of the valve with a means of venting/bleeding the cavity between the seating surfaces
NOTE This valve does not provide positive double isolation when only one side is under pressure. See double-
isolation-and-bleed valve (4.8).
4.8
double-isolation-and-bleed valve
DIB
single valve with two seating surfaces, each of which, in the closed position, provides a seal against pressure
from a single source, with a means of venting/bleeding the cavity between the seating surfaces
NOTE This feature can be provided in one direction or in both directions.
4.9
drive train
all parts of a valve drive between the operator and the obturator, including the obturator but excluding the
operator
4.10
flow coefficient
K
v
volumetric flow rate of water at a temperature between 5 °C (40 °F) and 40 °C (104 °F) passing through a
valve and resulting in a pressure loss of 0,1 MPa (1 bar; 14.5 psi)
NOTE K is expressed in SI units of cubic metres per hour.
v
NOTE K is related to the flow coefficient C , expressed in USC units of US gallons per minute at 15,6 °C (60 °F)
v v
resulting in a 1 psi pressure drop as given by Equation (1):
C
v
K = (1)
v
1,156
4.11
full-opening valve
valve with an unobstructed opening, not smaller than the internal bore of the end connections
4.12
handwheel
wheel consisting of a rim connected to a hub, for example by spokes, and used to manually operate a valve
requiring multiple turns
8
---------------------- Page: 10 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
4.13
locking device
part or an arrangement of parts for securing a valve in the open and/or closed position
4.14
manual actuator
manual operator
wrench (lever) or hand-wheel with or without a gearbox
4.15
maximum pressure differential
MPD
maximum difference between the upstream and downstream pressure across the obturator at which the
obturator may be operated
4.16
nominal pipe size
NPS
numerical imperial designation of size which is common to components in piping systems of any one size
NOTE Nominal pipe size is designated by the abbreviation “NPS” followed by a number.
4.17
nominal pressure class
PN
numerical pressure design class as defined in ISO 7268 and used for reference purposes
NOTE Nominal pressure (PN) class is designated by the abbreviation “PN” followed by a number.
4.18
nominal size
DN
numerical metric designation of size that is common to components in piping systems of any one size
NOTE Nominal size is designated by the abbreviation “DN” followed by a number.
4.19
obturator
closure member
part of a valve, such as a ball, clapper, disc, gate or plug that is positioned in the flow stream to permit or
prevent flow
4.20
operator
device (or assembly) for opening or closing a valve
4.21
packing gland
component used to compress the stem packing
4.22
position indicator
device to show the position of the valve obturator
4.23
piggability
capability of a valve to permit the unrestricted passage of a pig
9
---------------------- Page: 11 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
4.24
powered actuator
powered operator
electric, hydraulic or pneumatic device bolted or otherwise attached to the valve for powered opening and
closing of the valve
4.25
pressure class
numerical pressure design class expressed in accordance with either the nominal pressure (PN) class or the
ASME rating class
NOTE In this International Standard, the pressure class is stated by the PN class followed by the ASME rating class
between brackets.
4.26
pressure-containing parts
parts, whose failure to function as intended results in a release of contained fluid into the environment
4.27
pressure-controlling parts
parts, such as seat and obturator, intended to prevent or permit the flow of fluids
4.28
process-wetted parts
parts exposed directly to the pipeline fluid
4.29
reduced-opening valve
valve with the opening through the obturator smaller than at the end connection(s)
4.30
seating surfaces
contact surfaces of the obturator and seat which ensure valve sealing
4.31
stem
part that connects the obturator to the operator and which can consist of one or more components
4.32
stem extension assembly
assembly consisting of the stem extension and the stem extension housing
4.33
support ribs or legs
metal structure that provides a stable footing when the valve is set on a fixed base
4.34
through-conduit valve
valve with an unobstructed and continuous cylindrical opening
4.35
uni-directional valve
valve designed for blocking the flow in one direction only
4.36
unless otherwise agreed
〈modification of the requirements of this International Standard 〉 unless the manufacturer and purchaser agree
on a deviation
10
---------------------- Page: 12 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
4.37
unless otherwise specified
〈modification of the requirements of this International Standard 〉 unless the purchaser specifies otherwise
4.38
venturi plug valve
valve with a substantially reduced opening through the plug and a smooth transition from each full-opening
end to the reduced opening
5 Symbols and abbreviated terms
5.1 Symbols
C flow coefficient in USC units
v
K flow coefficient in metric units
v
t thickness
5.2 Abbreviated terms
BM base metal
CE carbon equivalent
DBB double-block-and-bleed
DIB double isolation-and-bleed
DN nominal size
HAZ heat-affected zone
HBW Brinell hardness, tungsten ball indenter
HRC Rockwell C hardness
HV Vickers hardness
MPD maximum pressure differential
MT magnetic-particle testing
NDE non-destructive examination
NPS nominal pipe size
PN nominal pressure
PQR (weld) procedure qualification record
PT penetrant testing
PWHT post-weld heat treatment
RT radiographic testing
11
---------------------- Page: 13 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
SMYS specified minimum yield strength
USC United States Customary (units)
UT ultrasonic testing
WM weld metal
WPS weld procedure specification
WPQ welder performance qualification
6 Valve types and configurations
6.1 Valve types
6.1.1 Gate valves
Typical configurations for gate valves with flanged and welding ends are shown, for illustration purposes only,
in Figures 1 and 2.
Gate valves shall have an obturator that moves in a plane perpendicular to the direction of flow. The gate can
be constructed of one piece for slab-gate valves or of two or more pieces for expanding-gate valves.
Gate valves shall be provided with a back seat or secondary stem sealing feature in addition to the primary
stem seal.
6.1.2 Lubricated and non-lubricated plug valves
Typical configurations for plug valves with flanged and welding ends are shown, for illustration purposes only,
in Figure 3.
Plug valves shall have a cylindrical or conical obturator that rotates about an axis perpendicular to the
direction of flow.
6.1.3 Ball valves
Typical configurations for ball valves with flanged or welding ends are shown, for illustration purposes only, in
Figures 4, 5 and 6.
Ball valves shall have a spherical obturator that rotates on an axis perpendicular to the direction of flow.
6.1.4 Check valves
Typical configurations for check valves are shown, for illustration purposes only, in Figures 7 to 13. Check
valves can also be of the wafer, axial flow and lift type.
Check valves shall have an obturator which responds automatically to block fluid in one direction.
6.2 Valve configurations
6.2.1 Full-opening valves
Full-opening flanged-end valves shall be unobstructed in the fully opened position and shall have an internal
bore as specified in Table 1. There is no restriction on the upper limit of valve bore sizes.
12
---------------------- Page: 14 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Full-opening through-conduit valves shall have a circular bore in the obturator that allows a sphere to pass
with a nominal size not less than that specified in Table 1.
Welding-end valves can require a smaller bore at the welding end to mate with the pipe.
Valves with a non-circular opening through the obturator shall not be considered full opening.
6.2.2 Reduced-opening valves
Reduced-opening valves with a circular opening through the obturator shall be supplied with a minimum bore
as follows, unless otherwise specified:
valves DN 300 (NPS 12) and below: one size below nominal size of valve with bore according to Table 1;
valves DN 350 (NPS 14) to DN 600 (NPS 24): two sizes below nominal size of valve with bore according
to Table 1;
valves above DN 600 (NPS 24): by agreement.
EXAMPLE A DN 400 (NPS 16) – PN 250 (class 1500) reduced-opening ball valve has a minimum bore of 287 mm.
Reduced-opening valves with a non-circular opening through the obturator shall be supplied with a minimum
opening by agreement.
13
---------------------- Page: 15 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Table 1 — Minimum bore for full-opening valves
Minimum bore by class
mm
DN NPS
PN 20 to 100 PN 150 PN 250 PN 420
(Class 150 to 600) (Class 900) (Class 1 500) (Class 2 500)
15 ½ 13 13 13 13
20 ¾ 19 19 19 19
25 1 25 25 25 25
32 1¼ 32 32 32 32
40 1½ 38 38 38 38
50 2 49 49 49 42
65 2½ 62 62 62 52
80 3 74 74 74 62
100 4 100 100 100 87
150 6 150 150 144 131
200 8 201 201 192 179
250 10 252 252 239 223
300 12 303 303 287 265
350 14 334 322 315 292
400 16 385 373 360 333
450 18 436 423 406 374
500 20 487 471 454 419
550 22 538 522 500 —
600 24 589 570 546 —
650 26 633 617 594 —
700 28 684 665 641 —
750 30 735 712 686 —
800 32 779 760 730 —
850 34 830 808 775 —
900 36 874 855 819 —
950 38 925 904 — —
1 000 40 976 956 — —
1 050 42 1 020 1 006 — —
1 200 48 1 166 1 149 — —
1 350 54 1 312 — — —
1 400 56 1 360 — — —
1 500 60 1 458 — — —
14
---------------------- Page: 16 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Key
1 stem indicator
2 stem enclosure
3 handwheel
4 yoke nut
5 yoke
6 stem
7 yoke bolting
8 stem packing
9 relief valve
10 bonnet
11 bonnet bolting
12 gate guide
13 gate assembly
14 seat ring
15 body
16 support ribs or legs
17 raised face
18 welding end
19 ring joint
A raised-face face-to-face
dimension
B welding-end end-to-end
dimension
C ring-joint end-to-end
dimension
NOTE See Tables 2 to
6 for dimensions A, B and C.
Figure 1 — Expanding-gate/rising-stem gate valve
15
---------------------- Page: 17 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Key
1 stem indicator
2 stem enclosure
3 hand-wheel
4 yoke nut
5 yoke
6 stem
7 yoke bolting
8 stem packing
9 relief valve
10 bonnet
11 bonnet bolting
12 gate
13 seat ring
14 body
15 support ribs or
legs
16 raised face
17 welding end
18 ring joint
A raised-face face-
to-face dimension
B welding-end end-
to-end dimension
C ring-joint end-to-
end dimension
NOTE See
Tables 2 to 6 for
dimensions A, B and C.
Figure 2 — Slab-gate/through-conduit rising-stem gate valve
16
---------------------- Page: 18 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Key
1 lubricator screw
2 gland studs and nuts
3 gland
4 cover studs and nuts
5 cover
6 cover gasket
7 stem packing
8 lubricant check valve
9 plug
10 body
11 stop collar
12 raised face
13 welding end
14 ring joint
A raised-face face-to-face dimension
B welding-end end-to-end dimension
C ring-joint end-to-end dimension
NOTE See Tables 2 to 6 for
dimensions A, B and C.
Figure 3 — Plug valve
17
---------------------- Page: 19 ----------------------
kSIST prEN 13942:2008
prEN 13942:2008 (E)
Key
1 stem seal
2 bonnet cover
3 bonnet
4 body bolting
5 body
6 seat ring
7 stem
8 ball
9 raised face
10 welding end
11 ring joint
A raised-face face-to-face dimension
B welding-end end-to-end dimension
C ring-joint end-to-end dimension
NOTE See Tables 2 to 6 for
dimensions A, B and C.
Figure
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.