Safety and control devices for gas burners and gas burning appliances - Automatic shut-off valves for operating pressure of above 500 kPa up to and including 6 300 kPa

L’article 1 de la norme EN13611 :2019 s’applique avec la modification et l’addition suivantes :
Modification :
Le 1er paragraphe de l’article 1 de la norme EN13611 :2019 est remplacé par ce qui suit :
Le présent document spécifie les exigences de sécurité, de conception, de construction et de fonctionnement ainsi que les essais applicables aux robinets automatiques de sectionnement pour brûleurs et appareils utilisant un ou plusieurs combustibles gazeux, dénommés ci-après « robinets ».
Le présent document est applicable aux robinets dont la pression amont maximale déclarée est supérieure à 500 kPa et inférieure ou égale à 6 300 kPa, de diamètres nominaux de raccordement inférieurs ou égaux à DN 250.
Addition :
Le présent document est applicable :
-   aux robinets commandés électriquement ;
-   aux robinets actionnés par des fluides, y compris aux robinets pilotes de ces fluides s’ils sont commandés électriquement et aux robinets de décharge, mais en aucun cas aux dispositifs électriques externes commutant l’énergie motrice de commande ;
-   aux robinets automatiques de sectionnement dans lesquels le débit est commandé par des signaux électriques externes, proportionnellement au signal reçu ;
-   aux robinets équipés de contacts indicateurs de position fermée.
Le présent document n’est pas applicable aux robinets spécifiquement conçus pour une utilisation dans les réseaux de transport et de distribution.
Le 4ième paragraphe de l’article 1 de la EN 13611 :2019 est supprimé.

Sicherheits- und Regeleinrichtungen für Gasbrenner und Gasbrennstoffgeräte - Automatische Absperrventile für einen Betriebsdruck über 500 kPa bis einschließlich 6 300 kPa

Dieses Dokument legt die Sicherheits , Entwurfs , Konstruktions- und Leistungsanforderungen und Prüfun-gen für automatische Absperrventile mit oder ohne regulierende Steuerfunktionen (im Folgenden als „Ventile“ bezeichnet) für die Verwendung mit Gasbrennern und Gasgeräten zur Verbrennung von einem oder mehreren gasförmigen Brennstoffen nach EN 437:2003+A1:2009 fest.
Dieses Dokument gilt für Ventile mit angegebenen maximalen Eingangsdrücken von über 500 kPa (5 bar) bis einschließlich 6 300 kPa (63 bar).
Dieses Dokument gilt für:
-   elektrisch betriebene Ventile und für Ventile, die durch Steuermedien angesteuert werden, einschließ-lich der Steuerventile für diese Steuermedien, wenn sie elektrisch betrieben sind und Auslassventile enthalten, nicht jedoch für externe elektrische Schaltgeräte für die Stellantriebsenergie;
-   automatische Absperrventile mit Durchflussregelung durch externe elektrische Signale proportional zum angewendeten Signal.
Dieses Dokument gilt nicht für Ventile, die speziell für die Verwendung in Transport- und Verteilungsnetzen ausgelegt sind.
ANMERKUNG   Vorschriften für die Inspektion und Prüfung des Endprodukts durch den Hersteller sind nicht fest-gelegt.

Équipements auxiliaires pour brûleurs à gaz et appareils à gaz - Robinets automatiques de sectionnement pour pression de service supérieure à 500 kPa et inférieure ou égale à 6300 kPa

Le présent document spécifie les exigences de sécurité, de conception, de construction et de fonctionnement des robinets automatiques de sectionnement avec ou sans fonctions de robinets modulants pour brûleurs et appareils utilisant un ou plusieurs combustibles gazeux, dénommés ci-après « robinets », conformément à l’EN 437:2003+A1:2009.
Le présent document est applicable aux robinets dont la pression amont maximale déclarée est supérieure à 500 kPa (5 bar) et inférieure ou égale à 6 300 kPa (63 bar).
Le présent document est applicable :
-   aux robinets commandés électriquement et aux robinets actionnés par des fluides, y compris aux robinets pilotes de ces fluides s’ils sont commandés électriquement et aux robinets de décharge, mais en aucun cas aux dispositifs électriques externes commutant l’énergie motrice de commande ;
-   aux robinets automatiques de sectionnement dans lesquels le débit est commandé par des signaux électriques externes, proportionnellement au signal reçu.
Le présent document n’est pas applicable aux robinets spécifiquement conçus pour une utilisation dans les réseaux de transport et de distribution.
NOTE   Les dispositions relatives à l’inspection finale et aux essais des produits par le fabricant ne sont pas spécifiées.

Varnostne in nadzorne naprave za plinske gorilnike in plinske aparate - Samodejni zaporni ventili za delovni tlak nad 500 kPa do vključno 6300 kPa

General Information

Status
Not Published
Current Stage
5060 - Closure of Vote - Formal Approval
Due Date
11-Oct-2021

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SLOVENSKI STANDARD
oSIST prEN 16678:2020
01-maj-2020

Varnostne in nadzorne naprave za plinske gorilnike in plinske aparate - Samodejni

zaporni ventili za delovni tlak nad 500 kPa do vključno 6300 kPa

Safety and control devices for gas burners and gas burning appliances - Automatic shut-

off valves for operating pressure of above 500 kPa up to and including 6 300 kPa
Sicherheits- und Regeleinrichtungen für Gasbrenner und Gasbrennstoffgeräte -

Automatische Absperrventile für einen Betriebsdruck über 500 kPa bis einschließlich 6

300 kPa

Équipements auxiliaires pour brûleurs à gaz et appareils à gaz - Robinets automatiques

de sectionnement pour pression de service supérieure à 500 kPa et inférieure ou égale à

6300 kPa
Ta slovenski standard je istoveten z: prEN 16678
ICS:
23.060.40 Tlačni regulatorji Pressure regulators
27.060.20 Plinski gorilniki Gas fuel burners
oSIST prEN 16678:2020 en,fr,de

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

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oSIST prEN 16678:2020
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oSIST prEN 16678:2020
DRAFT
EUROPEAN STANDARD
prEN 16678
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 23.060.40 Will supersede EN 16678:2015
English Version
Safety and control devices for gas burners and gas burning
appliances - Automatic shut-off valves for operating
pressure of above 500 kPa up to and including 6 300 kPa

Équipements auxiliaires pour brûleurs à gaz et Sicherheits- und Regeleinrichtungen für Gasbrenner

appareils à gaz - Robinets automatiques de und Gasbrennstoffgeräte - Automatische

sectionnement pour pression de service supérieure à Absperrventile für einen Betriebsdruck über 500 kPa

500 kPa et inférieure ou égale à 6300 kPa bis einschließlich 6 300 kPa

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 58.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16678:2020 E

worldwide for CEN national Members.
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oSIST prEN 16678:2020
prEN 16678:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 6

1 Scope ................................................................................................................................................................. 7

2 Normative references ................................................................................................................................. 8

3 Terms and definitions ................................................................................................................................. 9

4 Classification ............................................................................................................................................... 10

4.1 Classes of control ....................................................................................................................................... 10

4.2 Groups of control ....................................................................................................................................... 10

4.3 Classes of control functions ................................................................................................................... 10

5 Units of measurement and test conditions ...................................................................................... 10

6 Construction requirements ................................................................................................................... 10

6.1 General .......................................................................................................................................................... 10

6.2 Mechanical parts of the control ............................................................................................................ 10

6.2.1 Appearance .................................................................................................................................................. 10

6.2.2 Holes ............................................................................................................................................................... 11

6.2.3 Breather holes ............................................................................................................................................ 11

6.2.4 Screwed fastenings ................................................................................................................................... 11

6.2.5 Jointing .......................................................................................................................................................... 11

6.2.6 Moving parts ................................................................................................................................................ 11

6.2.7 Sealing caps.................................................................................................................................................. 11

6.2.8 Dismantling and reassembly ................................................................................................................. 11

6.2.9 Auxilliary canals and orifices ................................................................................................................ 11

6.2.10 Presetting devices ..................................................................................................................................... 11

6.2.101 Closed position indicator switch .......................................................................................................... 11

6.2.102 Valve with modulating control ............................................................................................................. 11

6.2.103 Other controls assembled to a valve ................................................................................................... 12

6.2.104 Balanced valves .......................................................................................................................................... 12

6.2.105 Additional requirements for shut-off function ............................................................................... 12

6.3 Materials ....................................................................................................................................................... 12

6.3.1 General material requirements ........................................................................................................... 12

6.3.2 Housing ......................................................................................................................................................... 12

6.3.3 Zinc alloys ..................................................................................................................................................... 12

6.3.4 Springs providing closing and/or sealing force ............................................................................. 12

6.3.5 Resistance to corrosion and surface protection ............................................................................. 12

6.3.6 Impregnation .............................................................................................................................................. 13

6.3.7 Seals for glands for moving parts ........................................................................................................ 13

6.3.101 Closure members ....................................................................................................................................... 13

6.3.102 Parts transmitting the closing force ................................................................................................... 13

6.3.103 Balanced valves .......................................................................................................................................... 13

6.3.104 Bellows .......................................................................................................................................................... 13

6.4 Gas connections .......................................................................................................................................... 13

6.4.1 Making connections .................................................................................................................................. 13

6.4.2 Connection sizes......................................................................................................................................... 13

6.4.3 Threads ......................................................................................................................................................... 13

6.4.4 Union joints .................................................................................................................................................. 13

6.4.5 Flanges ........................................................................................................................................................... 13

6.4.6 Compression fittings ................................................................................................................................ 14

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6.4.7 Nipples for pressure test ......................................................................................................................... 14

6.4.8 Strainers ........................................................................................................................................................ 14

6.4.101 Welded connections .................................................................................................................................. 14

6.5 Electrical parts of the control ................................................................................................................ 14

6.5.1 General ........................................................................................................................................................... 14

6.5.2 Switching elements.................................................................................................................................... 14

6.5.3 Electrical components .............................................................................................................................. 14

6.6 Protection against internal faults for the purpose of functional safety ................................. 14

6.6.1 Design and construction requirements ............................................................................................. 14

6.6.2 Class A............................................................................................................................................................. 14

6.6.3 Class B............................................................................................................................................................. 14

6.6.4 Class C ............................................................................................................................................................. 14

6.6.5 Circuit and construction evaluation .................................................................................................... 15

6.101 Pneumatic and hydraulic actuating mechanisms .......................................................................... 15

7 Performance ................................................................................................................................................ 15

7.1 General ........................................................................................................................................................... 15

7.2 Leak-tightness ............................................................................................................................................. 15

7.2.1 Requirements .............................................................................................................................................. 15

7.2.2 Tests ................................................................................................................................................................ 15

7.3 Torsion and bending ................................................................................................................................. 16

7.3.1 General ........................................................................................................................................................... 16

7.3.2 Torsion and bending moments ............................................................................................................. 16

7.4 Rated flow rate ............................................................................................................................................ 16

7.5 Durability ...................................................................................................................................................... 16

7.5.1 Elastomers in contact with gas .............................................................................................................. 16

7.5.2 Durability of Marking ............................................................................................................................... 17

7.5.3 Resistance to scratching .......................................................................................................................... 17

7.5.4 Resistance to humidity ............................................................................................................................. 17

7.5.5 Lubricants in contact with gas ............................................................................................................... 17

7.6 Performance test for electronic controls .......................................................................................... 17

7.7 Long-term performance for electronic controls ............................................................................. 17

7.8 Data Exchange ............................................................................................................................................. 18

7.101 Closing function concerning remanence ........................................................................................... 18

7.101.1 Requirement ................................................................................................................................................ 18

7.101.2 Test of closing function ............................................................................................................................ 18

7.102 Closing force ................................................................................................................................................. 18

7.102.1 Requirement ................................................................................................................................................ 18

7.102.2 Test of closing force ................................................................................................................................... 18

7.103 Delay time and opening time ................................................................................................................. 19

7.103.1 Requirement ................................................................................................................................................ 19

7.103.2 Test of delay time and opening time ................................................................................................... 19

7.104 Closing time .................................................................................................................................................. 19

7.104.1 Requirement ................................................................................................................................................ 19

7.104.2 Test of closing time .................................................................................................................................... 19

7.105 Sealing force ................................................................................................................................................. 19

7.105.1 Requirement ................................................................................................................................................ 19

7.105.2 Test of sealing force .................................................................................................................................. 20

7.106 Closed position indicator switch .......................................................................................................... 20

7.106.1 Requirement ................................................................................................................................................ 20

7.106.2 Test of closed position indicator switch ............................................................................................ 20

7.107 Endurance ..................................................................................................................................................... 20

7.107.1 Requirement ................................................................................................................................................ 20

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7.107.2 Endurance test ............................................................................................................................................ 20

8 EMC/Electrical requirements................................................................................................................ 21

8.1 General .......................................................................................................................................................... 21

8.2 Protection by enclosure .......................................................................................................................... 21

8.101 Electrical equipment ................................................................................................................................ 22

8.101.1 Switches ........................................................................................................................................................ 22

8.101.2 Plug connections ........................................................................................................................................ 22

8.101.3 Power saving circuits ............................................................................................................................... 22

9 Electromagnetic compatibility (EMC) ................................................................................................ 22

9.1 Protection against environmental influences ................................................................................. 22

9.2 Supply voltage variations below 85 % of rated voltage .............................................................. 22

9.3 Voltage dips and interruptions ............................................................................................................. 23

9.4 Supply frequency variations .................................................................................................................. 23

9.5 Surge immunity tests ............................................................................................................................... 23

9.6 Electrical fast transient/burst .............................................................................................................. 23

9.7 Immunity to conducted disturbances induced by radio frequency fields ............................ 23

9.8 Immunity to radiated disturbances induced by radio frequency fields ................................ 23

9.9 Electrostatic discharge tests .................................................................................................................. 23

9.10 Power frequency magnetic field immunity tests ........................................................................... 23

9.11 Harmonics and interharmonics including mains signalling at a. c. power port, low

frequency immunity tests ....................................................................................................................... 23

10 Marking, instructions ............................................................................................................................... 23

10.1 Marking ......................................................................................................................................................... 23

10.2 Instructions ................................................................................................................................................. 24

10.3 Warning notice ........................................................................................................................................... 25

Annex A (informative) Abbreviations and Symbols ..................................................................................... 26

Annex B (informative) Leak-tightness test – volumetric method ............................................................ 27

Annex C (informative) Leak-tightness test – pressure loss method ....................................................... 28

Annex D (normative) Calculation of pressure loss into leakage rate ..................................................... 29

Annex E (normative) Electrical/electronic component fault modes ...................................................... 30

Annex F (normative) Additional requirements for safety accessories and pressure

accessories as defined in EU Directive 2014/68/EU .................................................................... 31

Annex G (normative) Materials for pressurized parts ................................................................................. 32

Annex H (informative) Additional materials for pressurized parts ....................................................... 33

Annex I (normative) Requirements for controls used in DC supplied gas burners and gas

burning appliances ................................................................................................................................... 34

Annex J (normative) Method for the determination of a Safety Integrity Level (SIL) ...................... 35

Annex K (normative) Method for the determination of a Performance Level (PL)........................... 36

Annex L (informative) Relationship between Safety Integrity Level (SIL) and Performance

Level (PL) ...................................................................................................................................................... 37

Annex M (informative) Reset functions ............................................................................................................ 38

Annex N (informative) Guidance document on environmental aspects ............................................... 39

Annex O (informative) Seals of elastomer, cork and synthetic fibre mixtures ................................... 40

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prEN 16678:2020 (E)

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

requirements of Regulation (EU) 2016/426 aimed to be covered .......................................... 41

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

requirements of Directive 2014/68/EU aimed to be covered ................................................... 46

Bibliography ................................................................................................................................................................. 50

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oSIST prEN 16678:2020
prEN 16678:2020 (E)
European foreword

This document (prEN 16678:2020) has been prepared by Technical Committee CEN/TC 58 “Safety and

control devices for burners and appliances burning gaseous or liquid fuels”, the secretariat of which is

held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 16678:2015.

This document has been prepared under a standardization request given to CEN by the European

Commission and the European Free Trade Association, and supports essential requirements of

EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA or ZB, which are an integral part of this

document.
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oSIST prEN 16678:2020
prEN 16678:2020 (E)
Introduction

This document is intended to be used in conjunction with EN 13611:2019. This document refers to

clauses of EN 13611:2019 or adapts clauses by stating “with the following modification”, “with the

following addition”, “is replaced by the following” or “is not applicable” in the corresponding clause.

This document adds clauses or sub clauses to the structure of EN 13611:2019 which are particular to

this document. It should be noted that these clauses and subclauses are not indicated as an addition.

Subclauses which are additional to those in EN 13611:2019 are numbered starting from 101. Additional

Annexes are designated as Annex AA, BB, CC, etc.
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oSIST prEN 16678:2020
prEN 16678:2020 (E)
1 Scope

This document specifies the safety, design, construction and performance requirements and testing for

automatic shut-off valves with or without modulating control functions (hereafter referred to as

‘valves’) for burners and appliances burning one or more gaseous fuels according to

EN 437:2003+A1:2009.

This document is applicable to valves with declared maximum inlet pressures of more than 500 kPa

(5 bar) and up to and including 6 300 kPa (63 bar).
This document is applicable to

— electrically operated valves and to valves actuated by fluids including the pilot valves for these

fluids if actuated electrically and including release valves, but not to any external electrical devices

for switching the actuating energy;

— automatic shut-off valves where the flow rate is controlled by external electrical signals

proportional to the applied signal.

This document is not applicable to valves specifically designed for use in transmission and distribution

networks.

NOTE Provisions for final product inspection and testing by the manufacturer are not specified.

2 Normative references

The following documents 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 161:2011+A3:2013, Automatic shut-off valves for gas burners and gas appliances

EN 682:2002, Elastomeric Seals - Materials requirements for seals used in pipes and fittings carrying gas

and hydrocarbon fluids

EN 10226-1:2004, Pipe threads where pressure tight joints are made on the threads - Part 1: Taper

external threads and parallel internal threads - Dimensions, tolerances and designation

EN 10226-2:2005, Pipe threads where pressure tight joints are made on the threads - Part 2: Taper

external threads and taper internal threads - Dimensions, tolerances and designation

EN 12516-1:2014, Industrial valves — Shell design st
...

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