Gas meters - Rotary displacement gas meters

This European Standard 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 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 installed in locations with vibration and shocks of low significance 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) with condensing humidity or with non-condensing humidity;
Unless otherwise specified in this standard:
•   all pressures used are gauge;
•   all influence quantities, except the one under test, are kept relatively constant at their reference value.
This European Standard also 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 3 000 bar.
NOTE   These limits are the same as in EU directive 97/23/EC.
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 mechanical index only.
The risk philosophy adopted in this standard is based on the analysis of hazards on account of pressure. The standard applies principles to eliminate or reduce hazards. Where these hazards cannot be eliminated appropriate protection measures are specified.

Gaszähler - Drehkolbengaszähler

Diese Europäische Norm legt den Einsatzbereich, den Bau, den Betrieb, die Ausgabecharakteristiken und die Prüfung von Drehkolbengaszählern (nachfolgend RD-Zähler oder einfach nur Zähler genannt) für die Gasvo-lumenmessung fest.
Diese Europäische Norm gilt für Drehkolbengaszähler, die wenigstens für die Volumenmessung von Brenn-gasen von mindestens der 1., 2. und 3. Gasfamilie, deren Zusammensetzung in EN 437:2003+A1:2009 beschrieben ist, bei einem maximalen Betriebsdruck bis einschließlich 20 bar in einem Umgebungs- und Gastemperaturbereich von mindestens –10 °C bis 40 °C eingesetzt werden.
Die vorliegende Europäische Norm gilt für Zähler, die an Standorten eingebaut sind, an denen unbedeutende Schwingungen und Erschütterungen auftreten können, sowie an
   geschlossenen Standorten (innen oder außen mit dem vom Hersteller vorgeschriebenen Schutz) mit oder ohne Betauung,
oder, bei entsprechender Angabe durch den Hersteller,
   offenen Standorten (außen ohne Abdeckung) mit oder ohne Betauung
Soweit in dieser Norm nicht anders angegeben:
   sind alle dargestellten Drücke als Überdrücke zu verstehen;
   werden alle Einflussgrößen außer der geprüften Einflussgröße relativ konstant bei ihrem Referenzwert gehalten.
Diese Europäische Norm gilt auch für Zähler mit einem maximal zulässigen Druck PS und Volumen V von weniger als 6 000 bar  Liter oder mit einem Produkt aus PS und DN von weniger als 3 000 bar.
ANMERKUNG   Diese Grenzwerte sind dieselben wie die in der EU-Richtlinie 97/23/EG festgelegten Grenzen.
Diese Europäische Norm kann für die Musterzulassungsprüfung und die Einzelzählerprüfung angewendet werden. Verweistabellen sind in den folgenden Abschnitten aufgeführt:
   Anhang A für die Prüfungen, die zur Musterzulassung vorgenommen werden müssen;
   Anhang B für die Einzelzählerprüfung.
Einige Abschnitte dieser Norm behandeln ausschließlich Zähler mit einem mechanischen Zählwerk.
Die in dieser Norm angewendete Risikophilosophie beruht auf einer Analyse der aufgrund von Druck entstehenden Gefahren. Die Norm wendet Grundsätze an, um Gefahren zu beseitigen oder zu verringern. Dort wo diese Gefahren nicht beseitigt werden können, werden angemessene Schutzmaßnahmen festgelegt.

Compteurs de gaz - Compteurs de gaz à déplacement rotatif

La présente Norme européenne spécifie les plages, construction, performances, caractéristiques de sortie et essais des compteurs de mesure de volume de gaz à pistons rotatifs (appelés ci-après simplement compteurs).
La présente Norme européenne s’applique aux compteurs de gaz à pistons rotatifs utilisés pour mesurer le volume de gaz au moins de la 1re, 2e et 3e familles, dont la composition est spécifiée dans l’EN 437:2003+A1:2009, à une pression de service maximale jusqu’à 20 bar pour une gamme de température ambiante et de température du gaz d’au moins –10 °C à +40 °C.
La présente Norme européenne s’applique aux compteurs installés dans des endroits où les vibrations et les chocs sont peu importants et :
   dans des endroits fermés (à l’intérieur ou à l’extérieur avec la protection spécifiée par le fabricant) avec ou sans condensation d’humidité ;
ou, si le constructeur le spécifie,
   dans des endroits ouverts (à l’extérieur sans protection) avec ou sans condensation d’humidité.
Sauf spécification contraire dans la présente norme :
   toutes les pressions sont des pressions relatives ;
   toutes les grandeurs d’influence, sauf celle qui est soumise à l’essai, sont maintenues constantes à leur valeur de référence.
La présente Norme européenne s’applique également aux compteurs avec une pression maximale admissible PS et le volume V de moins de 6 000 bar • litres ou avec un produit de PS et DN inférieur à 3 000 bar.
NOTE   Ces limites sont les mêmes que dans la Directive UE 97/23/CE.
La présente Norme européenne peut être utilisée aussi bien pour l’approbation de modèle que pour des essais individuels de compteurs. Des tableaux de correspondance sont donnés à :
   l’Annexe A pour les essais devant être réalisés pour l’approbation de modèle ;
   l’Annexe B pour les essais individuels de compteurs.
Certaines parties de la présente norme couvrent les compteurs disposant uniquement d’un index mécanique.
L’approche du risque adoptée dans cette norme repose sur l’analyse des dangers liés à la pression. Les principes appliqués par la norme visent à éliminer ou réduire les dangers. Lorsque ces dangers ne peuvent pas être éliminés, des mesures de protection appropriées sont spécifiées.

Plinomeri - Plinomeri z rotacijskimi bati

General Information

Status
Withdrawn
Publication Date
10-Mar-2015
Withdrawal Date
20-Feb-2018
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
21-Feb-2018

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Plinomeri - Plinomeri z rotacijskimi batiGaszähler - DrehkolbengaszählerCompteurs de gaz - Compteurs de gaz à déplacement rotatifGas meters - Rotary displacement gas meters91.140.40Sistemi za oskrbo s plinomGas supply systemsICS:Ta slovenski standard je istoveten z:EN 12480:2015SIST EN 12480:2015en,fr,de01-junij-2015SIST EN 12480:2015SLOVENSKI

STANDARDSIST EN 12480:2004/A1:2006SIST EN 12480:20041DGRPHãþD
SIST EN 12480:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12480
March 2015 ICS 91.140.40 Supersedes EN 12480:2002English Version
Gas meters - Rotary displacement gas meters
Compteurs de gaz - Compteurs de gaz à déplacement rotatif

Gaszähler - Drehkolbengaszähler This European Standard was approved by CEN on 11 January 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 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, 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-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, 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
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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 12480:2015 ESIST EN 12480:2015

EN 12480:2015 (E) 2

Contents Page Foreword .............................................................................................................................................................. 5 1 Scope ...................................................................................................................................................... 6 2 Normative references ............................................................................................................................ 6 3 Terms and definitions ......................................................................................................................... 11 3.1 Definitions ............................................................................................................................................ 11 3.2 Symbols and abbreviations ................................................................................................................ 14 4 Operating range ................................................................................................................................... 14 4.1 General .................................................................................................................................................. 14 4.2 Flow rate range (conformity/individual) ............................................................................................ 14 4.3 Operating pressure range (conformity/individual) ........................................................................... 15 4.4 Operating temperature range (conformity/individual) ..................................................................... 15 5 Metrological performance ................................................................................................................... 15 5.1 General .................................................................................................................................................. 15 5.2 Error of indication (conformity/individual) ........................................................................................ 15 5.2.1 Requirements ....................................................................................................................................... 15 5.2.2 Test ........................................................................................................................................................ 16 5.3 Pressure loss (conformity/individual) ............................................................................................... 17 5.3.1 Requirements ....................................................................................................................................... 17 5.3.2 Test ........................................................................................................................................................ 17 5.4 Metrological repeatability (conformity) ............................................................................................. 17 5.4.1 Requirements ....................................................................................................................................... 17 5.4.2 Test ........................................................................................................................................................ 17 5.5 Operating pressure (conformity/individual)...................................................................................... 18 5.5.1 General .................................................................................................................................................. 18 5.5.2 Requirements ....................................................................................................................................... 18 5.5.3 Pattern approval test ........................................................................................................................... 18 5.5.4 Individual test ....................................................................................................................................... 18 5.6 Temperature ranges (conformity) ...................................................................................................... 18 5.6.1 General .................................................................................................................................................. 18 5.6.2 Minimum operational temperature ..................................................................................................... 19 5.6.3 Maximum operational temperature .................................................................................................... 19 5.6.4 Storage temperature range ................................................................................................................. 19 5.7 Condensing ambient conditions (conformity) .................................................................................. 20 5.7.1 Requirements ....................................................................................................................................... 20 5.7.2 Test ........................................................................................................................................................ 20 5.8 Bidirectional meters (conformity) ...................................................................................................... 20 5.8.1 Requirements ....................................................................................................................................... 20 5.8.2 Test ........................................................................................................................................................ 20 5.9 Influence of oil filling (conformity) ..................................................................................................... 20 5.9.1 Requirements ....................................................................................................................................... 20 5.9.2 Tests ...................................................................................................................................................... 20 6 Design and manufacturing ................................................................................................................. 20 6.1 General (conformity/individual) ......................................................................................................... 20 6.2 Material ................................................................................................................................................. 21 6.2.1 General (conformity) ........................................................................................................................... 21 6.2.2 Design method ..................................................................................................................................... 21 6.2.3 Resistance to external corrosion ....................................................................................................... 21 6.2.4 Penetration resistance ........................................................................................................................ 21 SIST EN 12480:2015

EN 12480:2015 (E) 3

6.2.5 Adhesion of the protective coating ................................................................................................... 22 6.2.6 Materials for pressurized parts .......................................................................................................... 22 6.3 Robustness .......................................................................................................................................... 24 6.3.1 Resistance to internal pressure (conformity/individual) ................................................................. 24 6.3.2 Fire resistance (conformity) ............................................................................................................... 25 6.3.3 External leak tightness (conformity/individual) ............................................................................... 25 6.3.4 Overload (conformity) ......................................................................................................................... 26 6.3.5 Bending and torsional moment (conformity) ................................................................................... 26 6.4 Transportation and storage (conformity/individual) ........................................................................ 28 6.4.1 Protection against foreign matter ...................................................................................................... 28 6.4.2 Protection against damage ................................................................................................................ 29 6.5 Connections (conformity) ................................................................................................................... 29 6.6 Pressure and temperature tappings (conformity) ............................................................................ 29 6.6.1 Pressure tappings ............................................................................................................................... 29 6.6.2 Temperature tappings ......................................................................................................................... 30 6.7 Manufacturing ...................................................................................................................................... 30 7 Meter output (conformity) ................................................................................................................... 31 7.1 Index ..................................................................................................................................................... 31 7.1.1 General ................................................................................................................................................. 31 7.1.2 Magnetic coupling ............................................................................................................................... 31 7.1.3 Mechanical indicating device ............................................................................................................. 31 7.1.4 Test element ......................................................................................................................................... 32 7.2 Index window ....................................................................................................................................... 33 7.2.1 Requirements ....................................................................................................................................... 33 7.2.2 Tests ..................................................................................................................................................... 33 7.3 Output drive shafts .............................................................................................................................. 34 7.3.1 Requirements ....................................................................................................................................... 34 7.3.2 Tests ..................................................................................................................................................... 36 7.4 Pulse generators ................................................................................................................................. 36 7.4.1 General ................................................................................................................................................. 36 7.4.2 Specification for low frequency pulse generator ............................................................................. 37 7.4.3 Specification for high frequency pulse generator ........................................................................... 37 7.4.4 Electrical Connection .......................................................................................................................... 37 8 Durability (conformity) ........................................................................................................................ 38 8.1 Requirements ....................................................................................................................................... 38 8.2 Tests ..................................................................................................................................................... 38 9 Marking, labelling and packaging (conformity/individual) .............................................................. 38 9.1 General ................................................................................................................................................. 38 9.2 Direction of flow .................................................................................................................................. 39 9.3 Pressure tappings ............................................................................................................................... 39 9.4 Durability and legibility of marking ................................................................................................... 39 9.4.1 Requirements ....................................................................................................................................... 39 9.4.2 Test ....................................................................................................................................................... 39 10 Documentation (conformity) .............................................................................................................. 39 10.1 General ................................................................................................................................................. 39 10.2 Documentation related to the manufacturer's tests ........................................................................ 39 10.3 Declaration of conformity ................................................................................................................... 40 10.4 Instruction manual .............................................................................................................................. 40 Annex A (normative)

Pattern approval ......................................................................................................... 41 Annex B (normative)

Individual meter testing ............................................................................................. 43 Annex C (normative)

Resistance to high temperature (optional) ............................................................... 44 C.1 Requirements ....................................................................................................................................... 44 SIST EN 12480:2015

EN 12480:2015 (E) 4

C.2 Test ........................................................................................................................................................ 44 C.2.1 Apparatus ............................................................................................................................................. 44 C.2.2 Test conditions .................................................................................................................................... 44 C.2.3 Test procedure ..................................................................................................................................... 45 C.3 Marking ................................................................................................................................................. 46 Annex D (normative)

Compliance evaluation for gas meters ..................................................................... 47 D.1 General .................................................................................................................................................. 47 D.2 Quality Management System .............................................................................................................. 47 D.2.1 General .................................................................................................................................................. 47 D.2.2 Procedures ........................................................................................................................................... 47 D.2.3 Manufacturer’s compliance evaluation ............................................................................................. 48 D.2.4 Issue of the certificate of compliance ............................................................................................... 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 ....................................... 63 G.1 General .................................................................................................................................................. 63 G.2 Weathering ........................................................................................................................................... 63 G.2.1 Requirements ....................................................................................................................................... 63 G.2.2 Test ........................................................................................................................................................ 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 2014/32 Measuring Instruments Directive ..................................... 65 Annex ZB (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC ............................................................................................ 69 Bibliography ...................................................................................................................................................... 71

SIST EN 12480:2015
EN 12480:2015 (E) 5

Foreword This document (EN 12480:2015) has been prepared 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 September 2015 and conflicting national standards shall be withdrawn at the latest by September 2015. 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 12480:2002. This document 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. For relationship with EU Directives, see informative Annex ZA and ZB, which are integral parts of this 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, 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. SIST EN 12480:2015

EN 12480:2015 (E) 6

1 Scope This European Standard 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 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 installed in locations with vibration and shocks of low significance 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) with condensing humidity or with non-condensing humidity; Unless otherwise specified in this standard: • all pressures used are gauge; • all influence quantities, except the one under test, are kept relatively constant at their reference value. This European Standard also 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 3 000 bar. NOTE These limits are the same as in EU directive 97/23/EC. 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 mechanical index only. The risk philosophy adopted in this standard is based on the analysis of hazards on account of 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 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 edition of the referenced document (including any amendments) applies. EN 485-2:2013, Aluminium and aluminium alloys - Sheet, strip and plate - Part 2: Mechanical properties EN 586-2:1994, Aluminium and aluminium alloys - Forgings - Part 2: Mechanical properties and additional property requirements SIST EN 12480:2015

EN 12480:2015 (E) 7

EN 754-2:2013, Aluminium and aluminium alloys - Cold 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 EN 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 1092-3:2003, 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, 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, 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 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 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 temperature properties EN 10028-6:2009, Flat products made of steels for pressure purposes - Part 6: Weldable fine grain steels, quenched and tempered EN 10028-7:2007, 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 SIST EN 12480:2015

EN 12480:2015 (E) 8

EN 10083-2:2006, Steels for quenching and tempering - Part 2: Technical delivery conditions for non alloy 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 - List of stainless steels EN 10088-3:2014, Stainless steels - 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 forming - Technical delivery conditions EN 10130:2006, Cold rolled low carbon steel flat products for cold forming - Technical delivery conditions EN 10204:2004, Metallic products - Types of inspection documents EN 10222-1:1998, Steel forgings for pressure purposes - Part 1: General requirements for open die forgings EN 10222-5:1999, Steel forgings for pressure purposes - Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels EN 10213:2007, Steel castings for pressure purposes EN 10250-1:1999, Open die steel forgings for general engineering purposes - Part 1: General requirements EN 10250-2:1999, Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and special steels EN 10250-4:1999, Open die steel forgings for general engineering purposes - Part 4: Stainless steels EN 10272:2007, Stainless steel bars for pressure purposes EN 10277-3:2008, Bright steel products - Technical delivery conditions - Part 3: Free-cutting steels EN 12164:2011, Copper and copper alloys - Rod for free machining purposes EN 12165:2011, Copper and copper alloys - Wrought and unwrought forging stock EN 12516-1:2014, Valves - Shell design strength - Part 1: Tabulation method for steel valve shells EN 12516-2:2014, Industrial valves - Shell design strength - Part 2: Calculation method for steel valve sh

...

SLOVENSKI STANDARD
kSIST FprEN 12480:2014
01-oktober-2014
Plinomeri - Plinomeri z rotacijskimi bati
Gas meters - Rotary displacement gas meters
Gaszähler - Drehkolbengaszähler
Compteurs de gaz - Compteurs de gaz à déplacement rotatif
Ta slovenski standard je istoveten z: FprEN 12480
ICS:
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
kSIST FprEN 12480:2014 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
kSIST FprEN 12480:2014
---------------------- Page: 2 ----------------------
kSIST FprEN 12480:2014
EUROPEAN STANDARD
FINAL DRAFT
FprEN 12480
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2014
ICS 91.140.40 Will supersede EN 12480:2002
English Version
Gas meters - Rotary displacement gas meters

Compteurs de gaz - Compteurs de gaz à déplacement Gaszähler - Drehkolbengaszähler

rotatif

This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical

Committee CEN/TC 237.

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-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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprEN 12480:2014 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
kSIST FprEN 12480:2014
FprEN 12480:2014 (E)
Contents Page

Foreword .............................................................................................................................................................. 5

1 Scope ...................................................................................................................................................... 6

2 Normative references ............................................................................................................................ 6

3 Terms and definitions ......................................................................................................................... 11

3.1 Definitions ............................................................................................................................................ 11

3.2 Symbols and abbreviations ................................................................................................................ 14

4 Operating range ................................................................................................................................... 14

4.1 General .................................................................................................................................................. 14

4.2 Flowrate range (conformity/individual) ............................................................................................. 14

4.3 Operating pressure range (conformity/individual) ........................................................................... 15

4.4 Operating temperature range (conformity/individual) ..................................................................... 15

5 Metrological performance ................................................................................................................... 15

5.1 General .................................................................................................................................................. 15

5.2 Error of indication (conformity/individual) ........................................................................................ 15

5.2.1 Requirements ....................................................................................................................................... 15

5.2.2 Test ........................................................................................................................................................ 16

5.3 Pressure loss (conformity/individual) ............................................................................................... 17

5.3.1 Requirements ....................................................................................................................................... 17

5.3.2 Test ........................................................................................................................................................ 17

5.4 Metrological repeatability (conformity) ............................................................................................. 17

5.4.1 Requirements ....................................................................................................................................... 17

5.4.2 Test ........................................................................................................................................................ 17

5.5 Operating pressure (conformity/individual)...................................................................................... 18

5.5.1 General .................................................................................................................................................. 18

5.5.2 Requirements ....................................................................................................................................... 18

5.5.3 Pattern approval test ........................................................................................................................... 18

5.5.4 Individual test ....................................................................................................................................... 18

5.6 Temperature ranges (conformity) ...................................................................................................... 18

5.6.1 General .................................................................................................................................................. 18

5.6.2 Minimum operational temperature ..................................................................................................... 19

5.6.3 Maximum operational temperature .................................................................................................... 19

5.6.4 Storage temperature range ................................................................................................................. 19

5.7 Condensing ambient conditions (conformity) .................................................................................. 20

5.7.1 Requirements ....................................................................................................................................... 20

5.7.2 Test ........................................................................................................................................................ 20

5.8 Bidirectional meters (conformity) ...................................................................................................... 20

5.8.1 Requirements ....................................................................................................................................... 20

5.8.2 Test ........................................................................................................................................................ 20

5.9 Influence of oil filling (conformity) ..................................................................................................... 20

5.9.1 Requirements ....................................................................................................................................... 20

5.9.2 Tests ...................................................................................................................................................... 20

6 Design and manufacturing ................................................................................................................. 20

6.1 General (conformity/individual) ......................................................................................................... 20

6.2 Material ................................................................................................................................................. 21

6.2.1 General (conformity) ........................................................................................................................... 21

6.2.2 Design method ..................................................................................................................................... 21

6.2.3 Resistance to external corrosion ....................................................................................................... 21

6.2.4 Penetration resistance ........................................................................................................................ 21

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6.2.5 Adhesion of the protective coating ................................................................................................... 22

6.2.6 Materials for pressurized parts .......................................................................................................... 22

6.3 Robustness .......................................................................................................................................... 24

6.3.1 Resistance to internal pressure (conformity/individual) ................................................................. 24

6.3.2 Fire resistance (conformity) ............................................................................................................... 25

6.3.3 External leak tightness (conformity/individual) ............................................................................... 25

6.3.4 Overload (conformity) ......................................................................................................................... 26

6.3.5 Bending and torsional moment (conformity) ................................................................................... 26

6.4 Transportation and storage (conformity/individual) ........................................................................ 28

6.4.1 Protection against foreign matter ...................................................................................................... 28

6.4.2 Protection against damage ................................................................................................................ 29

6.5 Connections (conformity) ................................................................................................................... 29

6.6 Pressure and temperature tappings (conformity) ............................................................................ 29

6.6.1 Pressure tappings ............................................................................................................................... 29

6.6.2 Temperature tappings ......................................................................................................................... 30

6.7 Manufacturing ...................................................................................................................................... 30

7 Meter output (conformity) ................................................................................................................... 31

7.1 Index ..................................................................................................................................................... 31

7.1.1 General ................................................................................................................................................. 31

7.1.2 Magnetic coupling ............................................................................................................................... 31

7.1.3 Mechanical indicating device ............................................................................................................. 31

7.1.4 Test element ......................................................................................................................................... 32

7.2 Index window ....................................................................................................................................... 33

7.2.1 Requirements ....................................................................................................................................... 33

7.2.2 Tests ..................................................................................................................................................... 33

7.3 Output drive shafts .............................................................................................................................. 34

7.3.1 Requirements ....................................................................................................................................... 34

7.3.2 Tests ..................................................................................................................................................... 36

7.4 Pulse generators ................................................................................................................................. 36

7.4.1 General ................................................................................................................................................. 36

7.4.2 Specification for low frequency pulse generator ............................................................................. 37

7.4.3 Specification for high frequency pulse generator ........................................................................... 37

7.4.4 Electrical Connection .......................................................................................................................... 37

8 Durability (conformity) ........................................................................................................................ 38

8.1 Requirements ....................................................................................................................................... 38

8.2 Tests ..................................................................................................................................................... 38

9 Marking, labelling and packaging (conformity/individual) .............................................................. 38

9.1 General ................................................................................................................................................. 38

9.2 Direction of flow .................................................................................................................................. 39

9.3 Pressure tappings ............................................................................................................................... 39

9.4 Durability and legibility of marking ................................................................................................... 39

9.4.1 Requirements ....................................................................................................................................... 39

9.4.2 Test ....................................................................................................................................................... 39

10 Documentation (conformity) .............................................................................................................. 39

10.1 General ................................................................................................................................................. 39

10.2 Documentation related to the manufacturer's tests ........................................................................ 39

10.3 Declaration of conformity ................................................................................................................... 40

10.4 Instruction manual .............................................................................................................................. 40

Annex A (normative) Pattern approval ......................................................................................................... 41

Annex B (normative) Individual meter testing ............................................................................................. 43

Annex C (normative) Resistance to high temperature (optional) ............................................................... 44

C.1 Requirements ....................................................................................................................................... 44

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C.2 Test ........................................................................................................................................................ 44

C.2.1 Apparatus ............................................................................................................................................. 44

C.2.2 Test conditions .................................................................................................................................... 44

C.2.3 Test procedure ..................................................................................................................................... 45

C.3 Marking ................................................................................................................................................. 46

Annex D (normative) Compliance evaluation for gas meters ..................................................................... 47

D.1 General .................................................................................................................................................. 47

D.2 Quality Management System .............................................................................................................. 47

D.2.1 General .................................................................................................................................................. 47

D.2.2 Procedures ........................................................................................................................................... 47

D.2.3 Manufacturer’s compliance evaluation ............................................................................................. 48

D.2.4 Issue of the certificate of compliance ............................................................................................... 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 ....................................... 62

G.1 General .................................................................................................................................................. 62

G.2 Weathering ........................................................................................................................................... 62

G.2.1 Requirements ....................................................................................................................................... 62

G.2.2 Test ........................................................................................................................................................ 62

Annex H (normative) Meter family ................................................................................................................. 63

H.1 Definition of meter family .................................................................................................................... 63

H.2 Criteria for grouping meters together in order to form a family ..................................................... 63

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 2004/22 Measuring Instruments Directive ..................................... 64

Annex ZB (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 97/23/EC ............................................................................................ 68

Bibliography ...................................................................................................................................................... 70

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FprEN 12480:2014 (E)
Foreword

This document (FprEN 12480:2014) has been prepared by Technical Committee CEN/TC 237 “Gas meters”,

the secretariat of which is held by BSI.
This document is currently submitted to the Unique Acceptance Procedure.
This document will supersede EN 12480:2002.

This document 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.

For relationship with EU Directives, see informative Annex ZA and ZB, which are integral parts of this

document.

Note: Due to fact that the Framework Partnership Agreement between the Commission and CEN and

CENELEC is not signed yet, there are currently no New Approach Consultants in place for 2014.

Therefore the provisions of CEN-CENELEC Guide 15 cannot be met.

This shall not prevent the processing of draft standards nor the offering of harmonized standards to the

Commission. In particular, draft standards can be sent to vote without Consultant assessment.

This note will be removed from the Foreword of the finalized publication.
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1 Scope

This European Standard 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 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 installed in locations with vibration and shocks of low

significance 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) with condensing humidity or with non-condensing humidity;

Unless otherwise specified in this standard:
• all pressures used are gauge;

• all influence quantities, except the one under test, are kept relatively constant at their reference value.

This European Standard also 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 3 000 bar.

NOTE These limits are the same as in EU directive 97/23/EC.

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 mechanical index only.

The risk philosophy adopted in this standard is based on the analysis of hazards on account of 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 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 edition of the referenced document (including any amendments) applies.

EN 485-2:2013, Aluminium and aluminium alloys - Sheet, strip and plate

EN 586-2:1994, Aluminium and aluminium alloys – Forged parts - Part 2: mechanical characteristics and other

required characteristics
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EN 754-2:2013, Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Mechanical properties

EN 755-2:2013, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Mechanical properties

EN 1057:2006+A1:2010, Copper and copper alloys - Seamless, round copper tubes for water and gas in

sanitary and heating applications

EN 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 1092-3:2003, 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, 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, Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 1: Steel

flanges, NPS ½ to 24

EN 1759-3:2003, Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 3:

Copper alloy flanges

EN 1759-4:2003, Circular flanges for 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 - Non-alloy and alloy steels with

specified elevated temperature properties

EN 10028-3:2009, Flat products made of steels for pressure purposes - Weldable fine grain steels,

normalized

EN 10028-4:2009, Flat products made of steels for pressure purposes - Nickel alloy steels with specified low

temperature properties

EN 10028-6:2009, Flat products made of steels for pressure purposes - Weldable fine grain steels, quenched

and tempered

EN 10028-7:2007, Flat products made of steels for pressure purposes - Stainless steels

EN 10083-1:2006, Steels for quenching and tempering - General technical delivery conditions

EN 10083-2:2006, Steels for quenching and tempering - Technical delivery conditions for non-alloy steels

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EN 10087:1998, Free cutting steels - Technical delivery conditions for semi-finished products, hot rolled bars

and rods
EN 10088-1:2005, Stainless steels - List of stainless steels

EN 10088-3:2005, Stainless steels - 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 forming

EN 10130:2006, Cold rolled low carbon steel flat products for cold forming. – Technical delivery conditions

EN 10204:2004, Metallic products – Types of inspection documents

EN 10222-1:1998, Steel forgings for pressure purposes - General requirements for open die forgings

EN 10222-5:1999, Steel forgings for pressure purposes. Martensitic, austenitic and austenitic-ferritic stainless

steels
EN 10213:2007, Steel castings for pressure purposes

EN 10250-1:1999, Open steel die forgings for general engineering purposes - General requirements

EN 10250-2:1999, Open steel die forgings for general engineering purposes - Non-alloy quality and special

steels
...

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