DIN EN 161-2013 Automatic shut-off valves for gas burners and gas appliances German version EN 161 2011+A3 2013《燃气燃烧器和燃气用具用自动截止阀 德文版本EN 161-2011+A3-2013》.pdf

1、April 2013 Translation by DIN-Sprachendienst.English price group 19No 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

2、23.060.10!$LE“1974134www.din.deDDIN EN 161Automatic shut-off valves for gas burners and gas appliances;English version EN 161:2011+A3:2013,English translation of DIN EN 161:2013-04Automatische Absperrventile fr Gasbrenner und Gasgerte;Englische Fassung EN 161:2011+A3:2013,Englische bersetzung von DI

3、N EN 161:2013-04Robinets automatiques de sectionnement pour brleurs gaz et appareils gaz;Version anglaise EN 161:2011+A3:2013,Traduction anglaise de DIN EN 161:2013-04SupersedesDIN EN 161:2012-11www.beuth.deDocument comprises 9 pagesIn case of doubt, the German-language original shall be considered

4、authoritative.5 02.13 DIN EN 161:2013-04 2 A comma is used as the decimal marker. Start of application The start of application of this standard is 2013-04-01. National foreword This standard includes safety requirements. This document (EN 161:2011+A3:2013) has been prepared by Technical Committee C

5、EN/TC 58 “Safety and control devices for burners and appliances burning gaseous or liquid fuels” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Heiz- und Raum-lufttechnik (Heating and Ventilation Technology Standards Committee), Wo

6、rking Committee NA 041-03-16 AA Mechanische Sicherheits- und Regeleinrichtungen fr wrmeerzeugende Gerte und Anlagen (SpA CEN/TC 58/WG 13, ISO/TC 161/WG 3, ISO/TC 161/WG 4). This standard has been developed with the consensus of the DVGW Deutscher Verein des Gas- und Wasserfaches e.V. (German Technic

7、al and Scientific Association for Gas and Water) and is intended to be included in its body of technical rules and standards for water. Amendments This standard differs from DIN EN 161:2012-11 as follows: a) the Foreword has been modified; b) Clause 1 “Scope” has been modified; c) Subclause 6.2.105

8、“Balanced valves” has been modified; d) Annexes AA and BB have been added. Previous editions DIN 3394-1: 1973-08, 1982-11 DIN 3394-2: 1973-08 DIN EN 161/A2: 1998-01 DIN EN 161: 1991-09, 1996-08, 2002-06, 2007-04, 2011-06, 2012-11 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 161:2011+A3 Janua

9、ry 2013 ICS 23.060.10 Supersedes EN 161:2011+A2:2012English Version Automatic shut-off valves for gas burners and gas appliances Robinets automatiques de sectionnement pour brleurs gaz et appareils gaz Automatische Absperrventile fr Gasbrenner und Gasgerte This European Standard was approved by CEN

10、on 20 February 2011 and includes Amendment 2 approved by CEN on 10 June 2012 and Amendment 3 approved by CEN on 10 November 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 standa

11、rd 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 any

12、 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 Repub

13、lic, 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 and United Kingdom. EUROPEAN

14、COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management 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 161:2011+A3:2013: EEN 161:2011+A3

15、:2013 (E) 2 Contents Page Foreword 4 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Classification 8 5 Units of measurement and test conditions .9 6 Construction requirements .9 7 Performance 14 8 EMC/Electrical requirements . 22 9 Marking, installation and operating instructions 24

16、 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 pressure loss into leakage rate . 29 Annex E (normat

17、ive) 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 (normative) Materials for pressurized parts 32 Annex H (informative) Additional materials for pressurized

18、 parts 33 Annex I (normative) Requirements for controls used in DC supplied gas burners and gas burning appliances . 34 Annex AA (normative) %Method for the determination of Performance Level (PL) b) normative references: ISO 4400 and ISO 6952 are changed to EN 175301-803; c) terms and definitions a

19、re aligned to #EN 13611:2007+A2:2011$; d) %sub-clause 6.2.105, Balanced valves, has been changed; e) sub-clause 6.2.107, Additional requirements for shut-off function, has been changed; g) %sub-clause 7.105.1, Sealing force requirements, has been changed; DIN EN 161:2013-04 EN 161:2011+A3:2013 (E) 5

20、 i) %addition of new Annexes AA and BB; b) leak tightness; c) sealing force (ability to withstand backpressure, to be checked by testing or calculation); d) closing force friction force; e) closing time including the influence to the Burner Control (EN 298); f) no uncontrolled opening of the automat

21、ic shut-off valve. As a result of this failure mode analysis, additional constructional requirements shall be fulfilled and/or additional faults compared to #EN 13611:2007+A2:2011$, Annex E shall be included into the fault assessment. The outcome of the analysis shall provide a set of conditions und

22、er which the new design can be used in an automatic shut-off valve. These conditions involve construction requirements, safety requirements, performance requirements and test methods. The fault reaction time shall be declared by the manufacturer. Failure of mechanical parts adversely affecting the p

23、erformance requirements of this European Standard is considered as an abnormal situation and can therefore be considered as a first fault according to the test method in #EN 13611:2007+A2:2011$, 6.6. DIN EN 161:2013-04 EN 161:2011+A3:2013 (E) 12 However, if mechanical parts are designed according to

24、 the constructional requirements of Clause 6 of this European Standard, failure of these parts is not considered. # 6.2.107 Additional requirements for shut-off function 6.2.107.1 Diaphragms that assist the shut-off function Shut-off functions using a diaphragm to apply (part of) the closing force t

25、o the closure member shall be designed in such a way that, when the diaphragm is damaged, the closure member closes and the maximum internal leakage rate of the valve is limited to 1 dm/h. Conformity shall be verified by the method given in 6.2.107.2. 6.2.107.2 Leakage test Remove or rupture the par

26、t(s) assisting the shut-off function. De-energize the valve. Measure the internal leakage rate of the valve according to 7.3.$ 6.3 Materials 6.3.1 General material requirements Shall be according to #EN 13611:2007+A2:2011$, 6.3.1. 6.3.2 Housing Shall be according to #EN 13611:2007+A2:2011$, 6.3.2. 6

27、.3.3 Test for leakage of housing after removal of non-metallic parts Shall be according to #EN 13611:2007+A2:2011$, 6.3.3. 6.3.4 Zinc alloys Shall be according to #EN 13611:2007+A2:2011$, 6.3.4. 6.3.5 Springs providing closing and/or sealing force Shall be according to #EN 13611:2007+A2:2011$, 6.3.5

28、. 6.3.6 Resistance to corrosion and surface protection Shall be according to #EN 13611:2007+A2:2011$, 6.3.6. 6.3.7 Impregnation Shall be according to #EN 13611:2007+A2:2011$, 6.3.7. 6.3.8 Seals for glands for moving parts Shall be according to #EN 13611:2007+A2:2011$, 6.3.8. DIN EN 161:2013-04 EN 16

29、1:2011+A3:2013 (E) 13 6.3.101 Closure members Closure members of valves above DN 25 shall either have a mechanical support (e. g. metallic) to withstand the sealing force or shall be made of metal. This requirement also applies to: all valves with a maximum inlet pressure above 15 kPa (150 mbar); pa

30、rts transmitting the closing force. The strength of the connection between closure members of a balanced valve shall be at least five multiplied by the maximum inlet pressure multiplied by the total opening area of the closure members. 6.4 Gas connections 6.4.1 Making connections Shall be according

31、to #EN 13611:2007+A2:2011$, 6.4.1. 6.4.2 Connection sizes Shall be according to #EN 13611:2007+A2:2011$, 6.4.2. 6.4.3 Threads Shall be according to #EN 13611:2007+A2:2011$, 6.4.3. 6.4.4 Union joints Shall be according to #EN 13611:2007+A2:2011$, 6.4.4. 6.4.5 Flanges Shall be according to #EN 13611:2

32、007+A2:2011$, 6.4.5. 6.4.6 Compression fittings Shall be according to #EN 13611:2007+A2:2011$, 6.4.6. 6.4.7 Nipples for pressure test Shall be according to #EN 13611:2007+A2:2011$, 6.4.7 with the following addition: Nipples for pressure test conforming to these requirements shall be used only up to

33、and including 500 mbar. 6.4.8 Strainers Shall be according to #EN 13611:2007+A2:2011$, 6.4.8 with the following addition: Where an inlet strainer is fitted to class A, B, C, and D valves, the maximum strainer hole dimension shall not exceed 1,5 mm and it shall prevent the passage of a 1 mm diameter

34、pin gauge. Class J valves shall incorporate an inlet strainer. The maximum strainer hole dimension shall not exceed 0,28 mm and it shall prevent the passage of a 0,2 mm diameter pin gauge. DIN EN 161:2013-04 EN 161:2011+A3:2013 (E) 14 Strainers fitted to valves of DN 25 and above shall be accessible

35、 for cleaning or replacement without removing the valve body by dismantling threaded or welded pipework. 6.5 Electronic parts of valves Shall be according to #EN 13611:2007+A2:2011$, 6.5. 6.6 Protection against internal faults for the purpose of functional safety Shall be according to #EN 13611:2007

36、+A2:2011$, 6.6. 6.101 Pneumatic and hydraulic actuating mechanisms Pneumatic or hydraulic actuated valves shall be provided with protection to ensure that the blockage of an orifice in the control system does not adversely affect the performance requirements as given in Clause 7. 7 Performance 7.1 G

37、eneral Shall be according to #EN 13611:2007+A2:2011$, 7.1 with the following addition: Valves shall close automatically when de-energized or in the absence of actuating energy. Valves with DC supplies shall operate correctly from the minimum rated voltage to the maximum rated voltage, as declared by

38、 the manufacturer. For DC supplies type A, B, and C according to #EN 13611:2007+A2:2011$, Annex I.1 a tolerance of 20 % to the minimum and the maximum rated voltage applies. For DC supplies of other types the tolerance shall be declared by the manufacturer. The electrical control valve of pneumatic

39、or hydraulic actuating mechanisms shall also meet these requirements. The closing of pneumatically or hydraulically actuated valves shall be ensured over the range from 85 % to 110 % of the actuating pressure or pressure range declared by the manufacturer. Aspects coming from new designs for closing

40、 and/or sealing according to 6.2.106.2.2 shall be taken as part of the performance requirements, as specified in Clause 7. 7.2 Leak-tightness Shall be according to #EN 13611:2007+A2:2011$, 7.2 with the following addition: Balanced valves shall be leak-tight when tested with rates given in Table 1. D

41、IN EN 161:2013-04 EN 161:2011+A3:2013 (E) 15 Table 1 Test pressure Inlet pressure Test pressure p in flow direction kPa Maximum leakage rate 0 Pa p 50 kPa 2 pmaxFor internal leak-tightness see values in #EN 13611:2007+A2:2011$, Table 2 50 kPa 15 kPa 50 000 150 000 DN 25 Opening time 1 s 50 000 150 0

42、00 25 DN 80 25 000 75 000 80 DN 150 25 000 25 000 150 DN 250 5 000 20 000 Table 4 Operating cycles for automatic shut-off valves for cookers according to EN 30-1-4:2002, 5.3.7.1 Nominal inlet size DN Number of cycles at: Maximum ambient temperature at least (60 5) C (20 5) C DN 25 Opening time 1 s m

43、aximum inlet pressure 15 kPa 800 000 200 000 7.107.3 Endurance test for closed position indicator switch Carry out the endurance test described in 7.107.2 on an unmodified valve with the maximum inductive or capacitive load declared by the manufacturer on the closed position indicator switch. During

44、 the test, monitor the switch to ensure that it indicates that the valve is closed when it is de-energized and open when energized. After the endurance test, carry out the test for indication of closure according to 7.106.2. 7.107.4 Flow characteristics 7.107.4.1 Valves with modulating control In ad

45、dition to 7.107.2, test the valve for opening to the lowest set point as declared by the manufacturer and to the mid-point in the closing direction according to 7.7.2. DIN EN 161:2013-04 EN 161:2011+A3:2013 (E) 22 7.107.4.2 Valves with step control In addition to 7.107.2, test the valve for opening

46、and/or closing to the mid-point of the adjustment range for each step according to 7.7.2. 8 EMC/Electrical requirements 8.1 Protection against environmental influences Shall be according to #EN 13611:2007+A2:2011$, 8.1. 8.2 Supply voltage variations below 85 % of rated voltage #EN 13611:2007+A2:2011

47、$, 8.2 is not applicable. 8.3 Short term voltage interruptions and decreases Shall be according to #EN 13611:2007+A2:2011$, 8.3 with the following addition: Determine the influence of supply voltage interruptions by monitoring any change of flow through the valve at a pressure difference at the valv

48、e declared by the manufacturer. 8.4 Supply frequency variations Shall be according to #EN 13611:2007+A2:2011$, 8.4. 8.5 Surge immunity test Shall be according to #EN 13611:2007+A2:2011$, 8.5. 8.6 Electrical fast transient/burst Shall be according to #EN 13611:2007+A2:2011$, 8.6. 8.7 Immunity to conducted disturbances Shall be according to #EN 13611:2007+A2:2011$, 8.7. 8.8 Immunity to radiated fields Shall be according to #EN 13611:2007+A2:2011$, 8.8. 8.9 Electrostatic discharge immunity test Shall be acco