EN 12480-2018 Gas meters - Rotary displacement gas meters.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Gas meters Rotary displacement gas metersBS EN 12480:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12480 February 2018 ICS 91.140.40 Supersedes EN 12480:2015English Version Gas meters - Rotary displacement ga

2、s meters Compteurs de gaz - Compteurs de gaz dplacement rotatif Gaszhler - Drehkolbengaszhler This European Standard was approved by CEN on 15 November 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the

3、 status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, Frenc

4、h, 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria,

5、Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

6、Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Me

7、mbers. Ref. No. EN 12480:2018 ENational forewordThis British Standard is the UK implementation of EN 12480:2018. It supersedes BS EN 12480:2015, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GSE/25, Gas Meters.A list of organizations represented on t

8、his committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 95510 5IC

9、S 91.140.40Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1

10、2480:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12480 February 2018 ICS 91.140.40 Supersedes EN 12480:2015English Version Gas meters - Rotary displacement gas meters Compteurs de gaz - Compteurs de gaz dplacement rotatif Gaszhler - Drehkolbengaszhler This European Standard was approved

11、 by CEN on 15 November 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national s

12、tandards 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 language an

13、d 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, Greece, Hunga

14、ry, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG C

15、EN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12480:2018 EBS EN 12480:2018EN 12480:2018 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative refe

16、rences 5 3 Terms, definitions, symbols and abbreviations 11 3.1 Terms and definitions 11 3.2 Symbols and abbreviations 15 4 Operating range 15 4.1 General . 15 4.2 Flow rate range (conformity/individual) 15 4.3 Operating pressure range (conformity/individual) 16 4.4 Operating temperature range (conf

17、ormity/individual) 16 5 Metrological performance 16 5.1 General . 16 5.2 Error of indication (conformity/individual) 16 5.3 Pressure loss (conformity/individual) 18 5.4 Metrological repeatability (conformity) . 18 5.5 Operating pressure (conformity/individual) 19 5.6 Temperature ranges (conformity)

18、19 5.7 Condensing ambient conditions (conformity). 21 5.8 Bidirectional meters (conformity) 21 5.9 Influence of oil filling (conformity) . 21 6 Design and manufacturing 21 6.1 General (conformity/individual) . 21 6.2 Material 22 6.3 Robustness 25 6.4 Transportation and storage (conformity/individual

19、) 29 6.5 Connections (conformity) . 30 6.6 Pressure and temperature tappings (conformity) 30 6.7 Manufacturing . 31 7 Meter output (conformity) . 32 7.1 Index . 32 7.2 Index window 33 7.3 Output drive shafts 34 7.4 Pulse generators . 37 8 Durability (conformity) . 39 8.1 Requirements 39 8.2 Tests 39

20、 9 Marking, labelling and packaging (conformity/individual) . 39 9.1 General . 39 9.2 Direction of flow . 40 9.3 Pressure tappings 40 9.4 Durability and legibility of marking 40 10 Documentation (conformity) . 40 BS EN 12480:2018EN 12480:2018 (E) 3 10.1 General . 40 10.2 Documentation related to the

21、 manufacturers tests 40 10.3 Declaration of conformity . 41 10.4 Instruction manual 41 Annex A (normative) Pattern approval . 42 Annex B (normative) Individual meter testing 44 Annex C (normative) Resistance to high temperature . 45 C.1 General . 45 C.2 Requirements . 45 C.3 Test 45 C.4 Marking 47 A

22、nnex D (normative) Compliance evaluation for gas meters 48 D.1 General . 48 D.2 Quality Management System 48 Annex E (normative) Non-destructive testing (NDT) . 49 Annex F (normative) Materials for pressurized parts . 51 Annex G (normative) Additional tests for meters to be used in open locations .

23、63 G.1 General . 63 G.2 Weathering . 63 Annex H (normative) Meter family . 64 H.1 Definition of meter family . 64 H.2 Criteria for grouping meters together in order to form a family 64 Annex ZA (informative) Relationship between this European Standard and the essential requirements of EU Directive 2

24、014/32/EU aimed to be covered 65 Annex ZB (informative) Relationship between this European Standard and the essential requirements of EU Directive 2014/68/EU aimed to be covered . 70 Bibliography . 72 BS EN 12480:2018EN 12480:2018 (E) 4 European foreword This document (EN 12480:2018) has been prepar

25、ed by Technical Committee CEN/TC 237 “Gas meters”, 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 August 2018, and conflicting national standards shall be

26、 withdrawn at the latest by August 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12480:2015. The main goal of thi

27、s revision was to be harmonized with 2014/32/EU (Measuring Instruments Directive) and 2014/68/EU Pressure Equipment Directive. This document has been prepared under mandates M/541 and M/071 given to CEN by the European Commission and the European Free Trade Association, and supports essential requir

28、ements of EU Directives 2014/32/EU and 2014/68/EU. For relationship with EU Directives 2014/32/EU and 2014/68/EU, see informative Annexes ZA and ZB, which are integral parts of this document. EN 12480:2015 was published when no New Approach Consultant was available and could not be assessed and publ

29、ished in the OJEU. According to the CEN-CENELEC 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 Mac

30、edonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12480:2018EN 12480:2018 (E) 5 1 Scope This European St

31、andard specifies ranges, construction, performances, output characteristics and testing of rotary displacement gas meters (hereinafter referred to as RD meters or simply meters) for gas volume measurement. This European Standard applies to rotary displacement gas meters used to measure the volume of

32、 fuel gases of at least the 1st, 2nd and 3rd gas families, the composition of which is specified in EN 437:2003+A1:2009, at a maximum working pressure up to and including 20 bar over an ambient and gas temperature range of at least 10 C to +40 C. This European Standard applies to meters that are ins

33、talled in locations with vibration and shocks of low significance (class M1) and in closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity or, if specified by the manufacturer, open locations (outdoor without any covering

34、) with condensing humidity or with non-condensing humidity, and in locations with electromagnetic disturbances (class E1 and E2). The standards apply to mechanical meters with mechanical index, electronic devices are not covered by this standard. Unless otherwise specified in this standard: all pres

35、sures used are gauge; all influence quantities, except the one under test, are kept relatively constant at their reference value. This European Standard applies to meters with a maximum allowable pressure PS and the volume V of less than 6 000 bar litres or with a product of PS and DN of less than 3

36、 000 bar. This European Standard can be used for both pattern approval and individual meter testing. Cross-reference tables are given in: Annex A for the tests that need to be undertaken for pattern approval; Annex B for individual meter testing. Some parts of this standard cover meters with mechani

37、cal index only. The risk philosophy adopted in this standard is based on the analysis of hazards including pressure. The standard applies principles to eliminate or reduce hazards. Where these hazards cannot be eliminated appropriate protection measures are specified. 2 Normative references The foll

38、owing documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 48

39、5-2:2013, Aluminium and aluminium alloys Sheet, strip and plate Part 2: Mechanical properties BS EN 12480:2018EN 12480:2018 (E) 6 EN 586-2:1994, Aluminium and aluminium alloys Forgings Part 2: Mechanical properties and additional property requirements EN 754-2:2016, Aluminium and aluminium alloys Co

40、ld drawn rod/bar and tube Part 2: Mechanical properties EN 755-2:2013, Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 2: Mechanical properties EN 1057:2006+A1:2010, Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications E

41、N 1092-1:2007+A1:2013, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1092-2:1997, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 2: Cast iron flanges EN 1092-3:2

42、003, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 3: Copper alloy flanges EN 1092-4:2002, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 4: Aluminium alloy flanges EN 1563:2011,

43、Founding Spheroidal graphite cast irons EN 1652:1997, Copper and copper alloys Plate, sheet, strip and circles for general purposes EN 1706:2010, Aluminium and aluminium alloys Castings Chemical composition and mechanical properties EN 1759-1:2004, Flanges and their joint Circular flanges for pipes,

44、 valves, fittings and accessories, Class designated Part 1: Steel flanges, NPS 1/2 to 24 EN 1759-3:2003, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 3: Copper alloy flanges EN 1759-4:2003, Flanges and their joint Circular flanges for

45、 pipes, valves, fittings and accessories, class designated - Part 4: Aluminium alloy flanges EN 1982:2008, Copper and copper alloys Ingots and castings EN 10025 (all parts), Hot rolled products of structural steels EN 10028-2:2009, Flat products made of steels for pressure purposes Part 2: Non-alloy

46、 and alloy steels with specified elevated temperature properties EN 10028-3:2009, Flat products made of steels for pressure purposes Part 3: Weldable fine grain steels, normalized EN 10028-4:2009, Flat products made of steels for pressure purposes Part 4: Nickel alloy steels with specified low tempe

47、rature properties BS EN 12480:2018EN 12480:2018 (E) 7 EN 10028-5:2009, Flat products made of steels for pressure purposes Part 5: Weldable fine grain steels, thermomechanically rolled EN 10028-6:2009, Flat products made of steels for pressure purposes Part 6: Weldable fine grain steels, quenched and

48、 tempered EN 10028-7:2016, Flat products made of steels for pressure purposes Part 7: Stainless steels EN 10083-1:2006, Steels for quenching and tempering Part 1: General technical delivery conditions EN 10083-2:2006, Steels for quenching and tempering Part 2: Technical delivery conditions for non a

49、lloy steels EN 10087:1998, Free-cutting steels Technical delivery conditions for semi-finished products, hot-rolled bars and rods EN 10088-1:2014, Stainless steels Part 1: List of stainless steels EN 10088-3:2014, Stainless steels Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes EN 10111:2008, Continuously hot rolled low carbon steel sheet and strip for cold fo