1、February 2016 English price group 18No 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 23.060.40!%LS3“2414816www.din.d
2、eDIN EN 16678Safety and control devices for gas burners and gas burning appliances Automatic shut-off valves for operating pressure of above 500 kPa up to and including 6 300 kPa;English version EN 16678:2015,English translation of DIN EN 16678:2016-02Sicherheits- und Regeleinrichtungen fr Gasbrenne
3、r und Gasbrennstoffgerte Automatische Absperrventile fr einen Betriebsdruck ber 500 kPa bis einschlielich 6300kPa;Englische Fassung EN 16678:2015,Englische bersetzung von DIN EN 16678:2016-02quipements auxiliaires pour brleurs gaz et appareils gaz Robinets automatiques de sectionnement pour pression
4、 de service suprieure 500 kPa et infrieure ou gale 6 300 kPa;Version anglaise EN 16678:2015,Traduction anglaise de DIN EN 16678:2016-02SupersedesDIN 3394-1:2004-05www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document
5、comprises 45 pages 03.16 DIN EN 16678:2016-02 2 A comma is used as the decimal marker. Start of application The start of application of this standard is 2016-02-01. National foreword This standard includes safety requirements in Clauses 6 and 7. This standard has been included in the body of technic
6、al rules and standards for gas issued by the DVGW Deutscher Verein des Gas- und Wasserfaches e.V. (German Technical and Scientific Association for Gas and Water). This document (EN 16678:2015) has been prepared by Technical Committee CEN/TC 58 “Safety and control devices for burners and appliances b
7、urning gaseous or liquid fuels” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Heiz- und Raumlufttechnik (DIN Standards Committee Heating and Ventilation Technology), Working Committee NA 041-03-03 GA Gemeinschaftsarbeitsausschuss
8、NHRS/NAA/NAGas: Sicherheits- und Regeleinrichtungen im Bereich der Gasversorgung und -verwendung fr Drcke bis 100 bar (SpA ISO/TC 161/WG 5). This standard contains specifications giving technical detail to the essential requirements set out in Annex I of the “Gas Appliances Directive”, Directive 200
9、9/142/EC (see also Annex ZA) and in Annex I of the “Pressure Equipment Directive”, Directive 97/23/EC (see also Annex ZB). Once this standard is cited in the Official Journal of the European Union, it is deemed a “harmonized” standard and thus, a manufacturer applying this standard may assume compli
10、ance (“presumption of conformity”) with the requirements of Annex I of the “Gas Appliances Directive”, Directive 2009/142/EC and Annex I of the “Pressure Equipment Directive”, Directive 97/23/EC. Directive 2009/142/EC has been implemented in Germany by the Siebte Verordnung zum Gerte- und Produktsic
11、herheitsgesetz (GPSG) (Seventh Ordinance to the German Equipment and Product Safety Act). Directive 97/23/EC has been implemented in Germany by the Vierzehnte Verordnung zum Gerte- und Produktsicherheitsgesetz (GPSG) (Fourteenth Ordinance to the German Equipment and Product Safety Act). Amendments T
12、his standard differs from DIN 3394-1:2004-05 as follows: a) the content of DIN 3394-1:2004-05 has been taken into account and supplemented in this standard; b) the range of maximum inlet pressures has been changed to 500 kPa up to and including 6 300 kPa (formerly 4 bar to 16 bar). Previous editions
13、 DIN 3394-2: 1973-08 DIN 3394-1: 1973-08, 1982-11, 2004-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16678 November 2015 ICS 23.060.40 English Version Safety and control devices for gas burners and gas burning appliances - Automatic shut-off valves for operating pressure of above 500 kPa
14、up to and including 6 300 kPaquipements auxiliaires pour brleurs gaz et appareils gaz - Robinets automatiques de sectionnement pour pression de service suprieure 500 kPa et infrieure ou gale 6 300 kPa Sicherheits- und Regeleinrichtungen fr Gasbrenner und Gasbrennstoffgerte - Automatische Absperrvent
15、ile fr einen Betriebsdruck ber 500 kPa bis einschlielich 6 300 kPa This European Standard was approved by CEN on 19 September 2015. 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
16、dard without any alteration. Up-to-date lists and bibliographical references concerning such national 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 a
17、ny other language made by translation under the responsibility of a CEN member into its own language 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 Rep
18、ublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN
19、 COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16678:2015 EEN 16678
20、:2015 (E) 2 Contents Page European foreword . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions . 8 4 Classification . 9 4.1 Classes of control . 9 4.2 Groups of control 10 4.3 Classes of control functions 10 5 Units of measurement and test conditions . 10 6 Construction requirements 10 6
21、.1 General . 10 6.2 Mechanical parts of the control 10 6.2.1 Appearance . 10 6.2.2 Holes . 10 6.2.3 Breather holes . 10 6.2.4 Test for leakage of breather holes . 10 6.2.5 Screwed fastenings 10 6.2.6 Jointing . 11 6.2.7 Moving parts 11 6.2.8 Sealing caps 11 6.2.9 Dismantling and reassembly . 11 6.2.
22、101 Closed position indicator switch 11 6.2.102 Valve with modulating control 11 6.2.103 Other controls assembled to a valve . 11 6.2.104 Balanced valves 11 6.2.105 Additional requirements for shut-off function . 11 6.3 Materials 12 6.3.1 General material requirements 12 6.3.2 Housing 12 6.3.3 Test
23、for leakage of housing after removal of non-metallic parts 12 6.3.4 Zinc alloys . 12 6.3.5 Springs providing closing and/or sealing force 12 6.3.6 Resistance to corrosion and surface protection . 12 6.3.7 Impregnation . 12 6.3.8 Seals for glands for moving parts . 12 6.3.101 Closure members . 12 6.3
24、.102 Parts transmitting the closing force 12 6.3.103 Balanced valves 12 6.3.104 Bellows 12 6.3.105 Resistance to pressure . 13 6.4 Gas connections 13 6.4.1 Making connections. 13 6.4.2 Connection sizes . 14 6.4.3 Threads 14 6.4.4 Union joints 14 DINEN 16678:2016-02EN 16678:2015 (E) 3 6.4.5 Flanges 1
25、4 6.4.6 Compression fittings 14 6.4.7 Nipples for pressure test 14 6.4.8 Strainers . 14 6.4.101 Welded connections 14 6.5 Electrical parts of the control . 14 6.5.1 General . 14 6.5.2 Switching elements 14 6.5.3 Electrical components . 14 6.6 Protection against internal faults for the purpose of fun
26、ctional safety 15 6.6.1 Design and construction requirements 15 6.6.2 Class A . 15 6.6.3 Class B . 15 6.6.4 Class C . 15 6.6.5 Circuit and construction evaluation 15 6.101 Pneumatic and hydraulic actuating mechanisms . 15 7 Performance . 15 7.1 General . 15 7.2 Leak-tightness 15 7.3 Test for leak-ti
27、ghtness 15 7.4 Torsion and bending . 16 7.5 Torsion and bending tests . 16 7.6 Rated flow rate 16 7.7 Test for rated flow rate . 16 7.8 Durability. 16 7.8.1 Elastomers in contact with gas 16 7.8.2 Marking 17 7.8.3 Tests for marking . 18 7.8.4 Resistance to scratching . 18 7.8.5 Scratch test 18 7.8.6
28、 Resistance to humidity . 18 7.8.7 Humidity test 18 7.9 Performance test for electronic controls . 18 7.10 Long-term performance for electronic controls . 18 7.101 Closing function concerning remanence 18 7.101.1 Requirement 18 7.101.2 Test of closing function 18 7.102 Closing force . 19 7.102.1 Req
29、uirement 19 7.102.2 Test of closing force . 19 7.103 Delay time and opening time 19 7.103.1 Requirement 19 7.103.2 Test of delay time and opening time . 19 7.104 Closing time 19 7.104.1 Requirement 19 7.104.2 Test of closing time 19 7.105 Sealing force . 20 7.105.1 Requirement 20 7.105.2 Test of sea
30、ling force . 20 7.106 Closed position indicator switch . 20 7.106.1 Requirement 20 7.106.2 Test of closed position indicator switch 21 DIN EN 16678:2016-02 EN 16678:2015 (E) 4 7.107 Endurance . 21 7.107.1 Requirement 21 7.107.2 Endurance test 21 8 EMC/Electrical requirements 22 8.1 Protection agains
31、t environmental influences . 22 8.2 Supply voltage variations below 85 % of rated voltage . 22 8.3 Short term voltage interruptions and decreases 22 8.4 Supply frequency variations 22 8.5 Surge immunity test 22 8.6 Electrical fast transient/burst . 22 8.7 Immunity to conducted disturbances . 22 8.8
32、Immunity to radiated fields 22 8.9 Electrostatic discharge immunity test 22 8.10 Power frequency magnetic field immunity test 22 8.11 Electrical requirements . 23 8.11.101 General 23 8.11.102 Electrical equipment 23 9 Marking, installation and operating instructions 24 9.1 Marking 24 9.2 Installatio
33、n and operating instructions . 24 9.3 Warning notice 25 Annex A (informative) Gas connections in common use in the various countries 26 Annex B (informative) Leak-tightness test volumetric method 27 Annex C (informative) Leak-tightness test pressure loss method . 28 Annex D (normative) Conversion of
34、 pressure loss into leakage rate . 29 Annex E (normative) Electrical/electronic component fault modes 30 Annex F (normative) Additional requirements for safety accessories and pressure accessories as defined in EU Directive 97/23/EC . 31 Annex G (informative) Materials for pressurized parts 32 Annex
35、 H (informative) Additional materials for pressurized parts . 33 Annex I (normative) Requirements for controls used in DC supplied gas burners and gas burning appliances 34 Annex J (normative) Method for the determination of a Safety Integrity Level (SIL) 35 Annex K (normative) Method for the determ
36、ination of a Performance Level (PL). 36 Annex L (informative) Relationship between Safety Integrity Level (SIL) and Performance Level (PL) 37 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2009/142/EC relating to appliances burning g
37、aseous fuels . 38 Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC relating to pressure equipment . 41 Bibliography . 43 DIN EN 16678:2016-02 EN 16678:2015 (E) 5 Table 1 Minimum value of safety factor F 13 Table 2 Test method
38、and acceptance criteria referred to the properties of elastomeric materials 17 Table 3 Sealing force requirements 20 Table 4 Operating cycles . 22 Table ZA.1 Correspondence between this European Standard and Directive 2009/142/EC relating toappliances burning gaseous fuels 38 Table ZB.1 Corresponden
39、ce between this European Standard and Directive 97/23/EC relating topressure equipment 41 FiguresFigure 1 Typical pilot and release valve application 9 DIN EN 16678:2016-02 Tables EN 16678:2015 (E) 6 European foreword This document (EN 16678:2015) has been prepared by Technical Committee CEN/TC 58 “
40、Safety and control devices for burners and appliances burning gaseous or liquid fuels”, the secretariat of which is held by BSI. 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 2016, and confl
41、icting national standards shall be withdrawn at the latest by May 2016. 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
42、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 Directives 2009/142/EC and 97/23/EC. For relationship with EU Directives, see informative Annexes ZA and ZB, which are an integral part of this
43、 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
44、France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DINEN 16678:2016-02EN 16678:2015 (E) 7 1 Scope This European Standard specif
45、ies the safety, design, construction and performance requirements and testing for automatic shut-off valves with or without modulating control functions (hereafter referred to as valves) for burners and appliances burning one or more gaseous fuels according to EN 437:2003+A1:2009. This European Stan
46、dard is applicable to valves with declared maximum inlet pressures of more than 500 kPa (5 bar) and up to and including 6 300 kPa (63 bar). This European Standard is applicable to electrically operated valves and to valves actuated by fluids including the pilot valves for these fluids if actuated el
47、ectrically and including release valves, but not to any external electrical devices for switching the actuating energy; automatic shut-off valves where the flow rate is controlled by external electrical signals proportional to the applied signal. This European Standard is not applicable to valves sp
48、ecifically designed for use in transmission and distribution networks. NOTE Provisions for final product inspection and testing by the manufacturer are not specified. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensabl
49、e for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 161:2011+A3:2013, Automatic shut-off valves for gas burners and gas appliances EN 549:1994, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 682:2002, Elastomeric Seals Materials requirements for seals used in pipes and
