1、May 2013Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.
2、060.01!%$/“2011256www.din.deDDIN EN 13774Valves for gas distribution systems with maximum operating pressureless than or equal to 16 bar Performance requirements;English version EN 13774:2013,English translation of DIN EN 13774:2013-05Armaturen fr Gasverteilungssysteme mit zulssigen Betriebsdrcken k
3、leiner oder gleich16 bar Anforderungen an die Gebrauchstauglichkeit;Englische Fassung EN 13774:2013,Englische bersetzung von DIN EN 13774:2013-05Appareils de robinetterie pour les systmes de distribution du gaz avec une pressionmaximale de service infrieure ou gale 16 bar Exigences de performance;Ve
4、rsion anglaise EN 13774:2013,Traduction anglaise de DIN EN 13774:2013-05SupersedesDIN EN 13774:2003-07www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 31 pages04.13 DIN EN 13774:2013-05 2 A comma is used as the decimal marker. National f
5、oreword This document (EN 13774:2013) has been prepared by Technical Committee CEN/TC 69 “Industrial valves” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Armaturen (Valves Standards Committee), Working Committee NA 003-01-08 AA Armatur
6、en fr Gastransport und Gasverteilung. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 272 DIN ISO 272 Amendments This standard differs from DIN EN 13774:2003-07 as follows: a) the scope of the standard has been rendered more precise; b) Cl
7、ause 2 “Normative references” has been updated; c) Clause 5 “Requirements, type tests and production tests” has been completely revised, in particular: 1) requirements for strength design (5.3.2), extended drain, vent and sealant lines (5.3.8), end-to-end dimensions (5.4.3) and mechanical resistance
8、 against excessive actuating forces (5.7) have been added; 2) requirements for resistance to wear (5.12) and reference flow rate (5.13) are now optional; 3) requirements for bending resistance and resistance to liquid agents have been deleted; d) the annex on analysis of the technical file and recor
9、ding of the initial conditions has been deleted; e) Annex A “Test method for valves” has been updated; f) the annex on additional characteristics on request from the purchaser has been deleted; g) the annex on resistance to bending moment applied via the stem or the shaft has been deleted; h) Annex
10、B “European Standards for valves” has been updated; i) Annex C “Summary of tests on product and type tests” has been added; j) the Bibliography has been updated. Previous editions DIN 3547-1: 1990-06 DIN EN 13774: 2003-07 National Annex NA (informative) Bibliography DIN ISO 272, Fasteners Width acro
11、ss Flats for Hexagon Products EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13774 February 2013 ICS 23.060.01 Supersedes EN 13774:2003English Version Valves for gas distribution systems with maximum operating pressure less than or equal to 16 bar - Performance requirements Appareils de robine
12、tterie pour les systmes de distribution du gaz avec une pression maximale de service infrieure ou gale 16 bar - Exigences de performance Armaturen fr Gasverteilungssysteme mit zulssigen Betriebsdrcken kleiner oder gleich 16 bar - Anforderungen an die Gebrauchstauglichkeit This European Standard was
13、approved by CEN on 28 December 2012. 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 na
14、tional standards may be obtained on application to the CEN-CENELEC 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 responsibility of a CEN member into its own lan
15、guage and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greec
16、e, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG M
17、anagement Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13774:2013: EEN 13774:2013 (E) 2 Contents Page Foreword . 4 1 Scope 5 2 Normative references . 5 3 Terms and definitions 7 4 S
18、ymbols and abbreviations . 8 5 Requirements, type tests and production tests 8 5.1 Type testing 8 5.1.1 Test samples 8 5.1.2 Test documents 8 5.1.3 Certification body . 9 5.2 Materials . 9 5.2.1 Shell 9 5.2.2 Obturator 10 5.2.3 Stem or shaft 10 5.2.4 Springs . 11 5.2.5 Seals . 11 5.2.6 Lubricants 11
19、 5.3 Design . 11 5.3.1 General . 11 5.3.2 Strength design 12 5.3.3 Stems or shafts 12 5.3.4 Shell tappings 12 5.3.5 Bolt holes for assembly purposes 13 5.3.6 Manufacturing apertures 13 5.3.7 Sealing systems . 13 5.3.8 Extended drain, vent and sealant lines . 13 5.4 Dimensions. 14 5.4.1 Threaded ends
20、 14 5.4.2 End connections 15 5.4.3 End-to-end dimensions 15 5.5 Operability and endurance 15 5.5.1 Operability 15 5.5.2 Endurance 16 5.6 Strength of stops . 16 5.7 Mechanical resistance against excessive actuating forces . 16 5.8 Resistance of the obturator to static differential pressure 16 5.9 She
21、ll strength . 16 5.10 External leak tightness 17 5.11 Internal leak tightness 17 5.12 Resistance to wear (optional test) . 17 5.13 Reference flow rate (optional test) 18 5.14 Cleanliness . 18 5.15 Storage . 18 6 Marking . 18 Annex A (normative) Test methods for valves 20 A.1 Accuracy of measurements
22、 and stability 20 A.2 Test method 1: operability and operating forces test . 20 A.2.1 General . 20 DIN EN 13774:2013-05 EN 13774:2013 (E) 3 A.2.2 Operability test . 20 A.2.3 Endurance test . 20 A.3 Test method 2: strength of stops 21 A.3.1 General . 21 A.3.2 Procedure . 21 A.4 Test method 3: resista
23、nce of the obturator to static differential pressure 21 A.5 Test method 4: wear test 21 A.5.1 General . 21 A.5.2 Procedure . 21 A.6 Test method 5: internal leak tightness test for DIB valves . 22 A.6.1 General . 22 A.6.2 Procedure . 22 A.6.3 Test conditions . 23 A.7 Test method 6: strength test on t
24、orque/thrust 23 A.7.1 General . 23 A.7.2 Measured breakaway torque/thrust . 23 A.7.3 Performance of test 24 A.7.4 Acceptance criteria 24 Annex B (informative) European Standards for valves 25 Annex C (informative) Summary of tests on product and type tests 26 Bibliography 29 DIN EN 13774:2013-05 EN
25、13774:2013 (E) 4 Foreword This document (EN 13774:2013) 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 endorse
26、ment, at the latest by August 2013, and conflicting national standards shall be withdrawn at the latest by August 2013. 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 identifyi
27、ng any or all such patent rights. This document supersedes EN 13774:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. The following is a list of the main changes compared to the previous edition: a) the Scope has be
28、en modified; b) the Normative References (Clause 2) have been updated; c) requirements of type tests and production tests (Clause 5) have been completely revised, in particular: 1) requirements for “strength design” (5.3.2), for “extended drain, vent and sealant lines” (5.3.8), for “end-to-end dimen
29、sions” (5.4.3), for “mechanical resistance against excessive actuating forces” (5.7) have been added; 2) requirements for “resistance to wear” (5.12) and for “reference flow rate” (5.13) became optional; 3) requirements for “bending resistance” and for “resistance to liquid agents” have been deleted
30、; d) the annex on analysis of the technical file and recording of the initial conditions has been deleted; e) the annex on test methods for valves (Annex A) has been updated; f) the annex on additional characteristics on request from the purchaser has been deleted; g) the annex on resistance to bend
31、ing moment applied via the stem or the shaft has been deleted; h) the annex providing the European Standards for valves (Annex B) has been updated; i) the annex giving a summary of tests on product and type tests (Annex C) has been added; j) the Bibliography has been updated. According to the CEN/CE
32、NELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary,
33、Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 13774:2013-05 EN 13774:2013 (E) 5 1 Scope This European Standard deals with metal isolating valves used
34、 for gas distribution systems with maximum operating pressure up to 16 bar, and which operate with fuel gases of the first, the second and the third family, in accordance with EN 437. The types of isolating valves to be considered are: plug and ball valves, gate valves, globe valves and butterfly va
35、lves. This standard does not apply to: valves for domestic installations; safety type pressure relief valves; wellhead valves. In the case of power operated valves, the requirements for the power source are not covered by this European Standard. The valves covered in this European Standard operate i
36、n the following classes of temperature: - 10 C to 60 C; - 20 C to 60 C; the range is stated by the purchaser for special design. This European Standard gives additional requirements to the relevant products standards. (See Annex B.) In case of contradictions between the standards mentioned in Annex
37、B and this European Standard, EN 13774 prevails. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest editio
38、n of the referenced document (including any amendments) applies. EN 19, Industrial valves Marking of metallic valves EN 377, Lubricants for applications in appliances and associated controls using combustible gases except those designed for use in industrial processes EN 549, Rubber materials for se
39、als and diaphragms for gas appliances and gas equipment EN 558, 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 682, Elastomeric Seals Materials requirements for seals used in pipes and fittings carrying g
40、as and hydrocarbon fluids 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 DIN EN 13774:2013-05 EN 13774:2013 (E) 6 EN 736-3:2008, Valves Terminology Part 3: Definition of terms EN 764-1:2004, Pressur
41、e equipment Part 1: Terminology Pressure, temperature, volume, nominal size EN 1092-1, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1092-2, Flanges and their joints Circular flanges for pipes, valves, fittings and acces
42、sories, PN designated Part 2: Cast iron flanges EN 1092-3, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 3: Copper alloy flanges EN 1555-1, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 1: General EN 1555-2,
43、 Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 2: Pipes EN 1555-3, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 3: Fittings EN 1759-1, Flanges and their joint Circular flanges for pipes, valves, fittings and accessories, Class design
44、ated Part 1: Steel flanges, NPS 1/2 to 24 EN 1759-3, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated Part 3: Copper alloy flanges EN 10204, Metallic products Types of inspection documents EN 10226-1, Pipe threads where pressure tight joints are
45、 made on the threads Part 1: Taper external threads and parallel internal threads Dimensions, tolerances and designation EN 12117, Plastics piping systems Fittings, valves and ancillaries Determination of gaseous flow rate/pressure drop relationships EN 12266-1:2012, Industrial valves Testing of met
46、allic valves Part 1: Pressure tests, test procedures and acceptance criteria Mandatory requirements EN 12516-1, Industrial valves Shell design strength Part 1: Tabulation method for steel valve shells EN 12516-2, Industrial valves Shell design strength Part 2: Calculation method for steel valve shel
47、ls EN 12516-3, Valves Shell design strength Part 3: Experimental method EN 12516-4, Industrial valves Shell design strength Part 4: Calculation method for valve shells manufactured in metallic materials other than steel EN 12570, Industrial valves Method for sizing the operating element EN 12627, In
48、dustrial valves Butt welding ends for steel valves EN 12982, Industrial valves End-to-end and centre-to-end dimensions for butt welding end valves EN 13942, Petroleum and natural gas industries Pipeline transportation systems Pipeline valves (ISO 14313:2007 modified) EN ISO 228-1, Pipe threads where
49、 pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation (ISO 228-1) DIN EN 13774:2013-05 EN 13774:2013 (E) 7 EN ISO 8434-1, Metallic tube connections for fluid power and general use Part 1: 24 degree cone connectors (ISO 8434-1) ISO 272, Fasteners Hexagon products Widths across flats ASME B1.20.1, Pipe Threads, General
