EN 161:2022+A1:2025
(Main)Automatic shut-off valves for gas burners and gas appliances
Automatic shut-off valves for gas burners and gas appliances
EN 13611:2019, Clause 1 applies with the following modification and addition:
Modification:
The 1st paragraph of EN 13611:2019, Clause 1 is replaced by:
This document specifies the safety, design, construction, and performance requirements and testing for automatic shut-off valves for burners and appliances burning one or more gaseous fuels, hereafter referred to as “valves”.
This document is applicable to valves with declared maximum inlet pressures up to and including 500 kPa and of nominal connection sizes up to and including DN 250.
Addition:
This document is applicable to:
- electrically actuated valves;
- valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy;
- valves where the flow rate is controlled by external electrical signals, either in discrete steps or proportional to the applied signal;
- valves fitted with closed position indicator switches.
An assessment method for valve designs is given by this document.
The 4th paragraph of EN 13611:2019, Clause 1 is removed.
Automatische Absperrventile für Gasbrenner und Gasgeräte
EN 13611:2019, Abschnitt 1, gilt mit folgender Änderung und Ergänzung:
Änderung:
Der erste Absatz von EN 13611:2019, Abschnitt 1, wird ersetzt durch:
Dieses Dokument legt die Sicherheits , Auslegungs , Konstruktions- und Leistungsanforderungen sowie die Prüfung von automatischen Absperrventilen für Brenner und Brennstoffgeräte für einen oder mehrere gasförmige Brennstoffe, nachstehend als „Ventile“ bezeichnet, fest.
Dieses Dokument gilt für Ventile mit einem angegebenen höchsten Eingangsdruck bis einschließlich 500 kPa und mit Anschlussnennweiten bis einschließlich DN 250.
Ergänzung:
Dieses Dokument gilt für:
elektrisch betätigte Ventile;
Ventile, die durch Steuermedien betätigt werden, wenn die Steuerventile für diese Medien elektrisch betätigt werden, aber nicht für externe elektrische Elemente, die das Steuersignal oder die Antriebsenergie schalten;
Ventile mit Durchflussmengenregelung durch externe elektrische Signale entweder in Stufen oder proportional zum angelegten Signal;
Ventile mit Meldeschaltern für die geschlossene Stellung.
Dieses Dokument gibt ein Bewertungsverfahren für die Auslegung und Konstruktion von Ventilen an.
Der vierte Absatz von EN 13611:2019, Abschnitt 1, entfällt.
Robinets automatiques de sectionnement pour brûleurs à gaz et appareils à gaz
L’article 1 de la norme EN 13611:2019 s’applique avec la modification et l’addition suivantes :
Modification :
Le 1er paragraphe de l’article 1 de la norme EN 13611:2019 est remplacé par ce qui suit :
Le présent document spécifie les exigences de sécurité, de construction et de fonctionnement et les essais applicables aux robinets automatiques de sectionnement pour brûleurs à gaz, appareils à gaz et similaires, dénommés ci-après « robinets ».
Ce document s'applique aux robinets dont la pression amont maximale déclarée est inférieure ou égale à 500 kPa, de diamètres nominaux de raccordement inférieurs ou égaux à DN 250.
Addition :
Le document est applicable aux :
- robinets de sectionnement commandés électriquement ;
- robinets de sectionnement actionnés par des fluides si les vannes de commande de ces fluides sont commandées électriquement, mais en aucun cas aux dispositifs électriques externes commutant le signal de commande ou libérant l'énergie motrice de commande ;
- robinets dans lesquels le débit est commandé par des signaux électriques externes, soit par pas, soit proportionnellement au signal reçu ;
- robinets équipés de contacts indicateurs de position de fermeture.
Une méthode d'évaluation de la conception des robinets est donnée par le présent document.
Le 4ième paragraphe de l’article 1 de la EN 13611 :2019 est supprimé.
Samodejni zaporni ventili za plinske gorilnike in plinske aparate (vključno z dopolnilom A1)
Točka 1 standarda EN 13611:2019 se uporablja z naslednjo spremembo in dodatkom: Sprememba: Prvi odstavek točke 1 standarda EN 13611:2019 nadomešča naslednje besedilo: Ta dokument določa zahteve za varnost, načrtovanje, izdelavo in delovanje ter preskušanje samodejnih zapornih ventilov za gorilnike in aparate, ki uporabljajo eno ali več plinastih goriv (v nadaljnjem besedilu »ventili«). Ta dokument se uporablja za ventile z določenim največjim vstopnim tlakom do vključno 500 kPa in nazivno velikostjo priključkov do vključno DN 250. Dodatek: Ta dokument se uporablja za: – električno prožene ventile; – ventile, prožene s tekočino, pri katerih se ventili za upravljanje prožijo električno, vendar za preklapljanje pogonske energije ali krmilnega signala ne uporabljajo zunanjih električnih naprav; – ventile, pri katerih stopnjo pretoka upravljajo zunanji električni signali v nepovezanih korakih ali sorazmerno z uporabljenim signalom; – ventile s kazalniki preklopa zaprtega položaja. Ta dokument določa metodo za ocenjevanje izdelave ventilov. Četrti odstavek točke 1 standarda EN 13611:2019 je odstranjen.
General Information
Relations
Overview
EN 161:2022+A1:2025 (CEN) is the European standard that specifies safety, design, construction, performance and testing requirements for automatic shut-off valves for gas burners and gas appliances. The standard applies to valves for one or more gaseous fuels with declared maximum inlet pressures up to and including 500 kPa and nominal connection sizes up to and including DN 250. The Amendment A1 (2025) clarifies applicability to electrically actuated valves, fluid-actuated valves controlled by electrically actuated control valves, valves with externally controlled flow (discrete or proportional), and valves fitted with closed position indicator switches. An assessment method for valve designs is included.
Key topics and technical requirements
- Scope & classification: Classes/groups of control, control functions and DC-supplied control types.
- Design & construction: Detailed requirements for mechanical parts (appearance, holes, moving parts, sealing caps), housings, materials (including zinc alloys and springs), closure members, and threaded/flanged/gland connections.
- Electrical & control requirements: Requirements for switching elements, electrical components, plug connections and power-saving circuits. Includes protection against internal faults for functional safety.
- Performance testing: Tests for leak-tightness (volumetric and pressure loss methods), rated flow, torsion/bending, durability, endurance, closing/opening times, closing force, sealing force, and closed position indicator switch performance.
- EMC and environmental immunity: Tests for voltage variations, dips, surge immunity, RF immunity, electrostatic discharge and related electromagnetic compatibility (EMC) requirements.
- Safety integrity & performance: Normative annexes provide methods for determining Safety Integrity Level (SIL) and Performance Level (PL) for valve designs.
- Documentation & marking: Mandatory marking, instructions and warning notices for safe installation, operation and maintenance.
- Normative annexes: Materials for pressurized parts, requirements for DC-supplied burners/appliances, electrical/electronic component fault modes, and additional requirements relating to EU Directive 2014/68/EU for pressure accessories.
Applications and who uses this standard
EN 161:2022+A1:2025 is used by:
- Manufacturers of gas valves, actuators and integrated controls (product design and CE marking).
- Appliance OEMs specifying compliant shut-off valves for boilers, burners, commercial/industrial heating and gas appliances.
- Test laboratories & certification bodies performing type testing, EMC and safety assessments.
- Regulatory & safety engineers, installers and service technicians referencing performance and marking requirements.
Typical applications include residential and commercial boilers, industrial burners, gas-fired process equipment and safety accessories in gas systems.
Related standards
- EN 13611:2019 (modified as noted in Clause 1 for this edition).
- EU Directive 2014/68/EU (pressure equipment) referenced via Annex F.
Keywords: EN 161:2022+A1:2025, automatic shut-off valves, gas burners, gas appliances, electrically actuated valves, leak-tightness, EMC, SIL, PL, DN 250, 500 kPa.
Frequently Asked Questions
EN 161:2022+A1:2025 is a standard published by the European Committee for Standardization (CEN). Its full title is "Automatic shut-off valves for gas burners and gas appliances". This standard covers: EN 13611:2019, Clause 1 applies with the following modification and addition: Modification: The 1st paragraph of EN 13611:2019, Clause 1 is replaced by: This document specifies the safety, design, construction, and performance requirements and testing for automatic shut-off valves for burners and appliances burning one or more gaseous fuels, hereafter referred to as “valves”. This document is applicable to valves with declared maximum inlet pressures up to and including 500 kPa and of nominal connection sizes up to and including DN 250. Addition: This document is applicable to: - electrically actuated valves; - valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy; - valves where the flow rate is controlled by external electrical signals, either in discrete steps or proportional to the applied signal; - valves fitted with closed position indicator switches. An assessment method for valve designs is given by this document. The 4th paragraph of EN 13611:2019, Clause 1 is removed.
EN 13611:2019, Clause 1 applies with the following modification and addition: Modification: The 1st paragraph of EN 13611:2019, Clause 1 is replaced by: This document specifies the safety, design, construction, and performance requirements and testing for automatic shut-off valves for burners and appliances burning one or more gaseous fuels, hereafter referred to as “valves”. This document is applicable to valves with declared maximum inlet pressures up to and including 500 kPa and of nominal connection sizes up to and including DN 250. Addition: This document is applicable to: - electrically actuated valves; - valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy; - valves where the flow rate is controlled by external electrical signals, either in discrete steps or proportional to the applied signal; - valves fitted with closed position indicator switches. An assessment method for valve designs is given by this document. The 4th paragraph of EN 13611:2019, Clause 1 is removed.
EN 161:2022+A1:2025 is classified under the following ICS (International Classification for Standards) categories: 23.060.10 - Globe valves. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 161:2022+A1:2025 has the following relationships with other standards: It is inter standard links to EN 161:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 161:2022+A1:2025 is associated with the following European legislation: EU Directives/Regulations: 2016/426; Standardization Mandates: M/595. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 161:2022+A1:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Nadomešča:
SIST EN 161:2022
Samodejni zaporni ventili za plinske gorilnike in plinske aparate (vključno z
dopolnilom A1)
Automatic shut-off valves for gas burners and gas appliances
Automatische Absperrventile für Gasbrenner und Gasgeräte
Robinets automatiques de sectionnement pour brûleurs à gaz et appareils à gaz
Ta slovenski standard je istoveten z: EN 161:2022+A1:2025
ICS:
23.060.10 Zapirni ventili (kroglasti) Globe valves
27.060.20 Plinski gorilniki Gas fuel burners
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 161:2022+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2025
EUROPÄISCHE NORM
ICS 23.060.10 Supersedes EN 161:2022
English Version
Automatic shut-off valves for gas burners and gas
appliances
Robinets automatiques de sectionnement pour Automatische Absperrventile für Gasbrenner und
brûleurs à gaz et appareils à gaz Gasgeräte
This European Standard was approved by CEN on 1 August 2022 and includes Amendment 1 approved by CEN on 5 February
2025.
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, 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, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 161:2022+A1:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Classification . 11
4.1 Classes of control . 11
4.2 Groups of control . 11
4.3 Classes of control functions . 11
4.4 Types of DC supplied controls . 11
5 Test conditions and uncertainty of measurements . 11
6 Design and construction . 11
6.1 General . 11
6.2 Mechanical parts of the control . 11
6.2.1 Appearance . 11
6.2.2 Holes . 11
6.2.3 Breather holes . 11
6.2.4 Screwed fastenings . 12
6.2.5 Jointing . 12
6.2.6 Moving parts . 12
6.2.7 Sealing caps . 12
6.2.8 Dismantling and reassembly. 12
6.2.9 Auxiliary canals and orifices . 12
6.2.10 Presetting device . 12
6.2.101 Design . 12
6.2.102 Closed position indicator switch . 12
6.2.103 Valve with modulating control . 12
6.2.104 Controls assembled to a valve . 12
6.2.105 Balanced valves . 12
6.2.106 Closing and sealing . 13
6.2.107 Additional requirements for shut-off function . 14
6.3 Materials . 14
6.3.1 General material requirements . 14
6.3.2 Housing . 14
6.3.3 Zinc alloys . 14
6.3.4 Springs. 14
6.3.5 Resistance to corrosion and surface protection . 14
6.3.6 Impregnation . 14
6.3.7 Seals for glands for moving parts . 14
6.3.101 Closure members . 15
6.4 Gas connections . 15
6.4.1 Making connections . 15
6.4.2 Connection sizes . 15
6.4.3 Threads . 15
6.4.4 Union joints . 15
6.4.5 Flanges . 15
6.4.6 Compression fittings . 15
6.4.7 Nipples for pressure test . 15
6.4.8 Strainers . 15
6.5 Electrical parts of the control . 15
6.5.1 General . 15
6.5.2 Switching elements . 15
6.5.3 Electrical components . 16
6.6 Protection against internal faults for the purpose of functional safety . 16
6.101 Pneumatic and hydraulic actuating mechanisms . 16
7 Performance . 16
7.1 General . 16
7.2 Leak-tightness . 16
7.3 Torsion and bending . 16
7.4 Rated flow rate. 17
7.4.1 Requirement . 17
7.4.2 Test . 17
7.4.3 Conversion of air flow rate . 17
7.5 Durability . 17
7.6 Performance tests for electronic controls . 17
7.7 Long-term performance for electronic controls . 17
7.8 Data exchange . 17
7.101 Closing function . 17
7.102 Closing force . 18
7.103 Delay time and opening time . 18
7.104 Closing time . 19
7.105 Sealing force . 19
7.106 Closed position indicator switch . 21
7.107 Endurance . 21
8 Electrical requirements . 23
8.1 General . 23
8.2 Protection by enclosure . 23
8.101 Switches. 23
8.102 Plug connections . 23
8.103 Power saving circuits . 24
9 Electromagnetic compatibility (EMC) . 24
9.1 Protection against environmental influences . 24
9.2 Supply voltage variations below 85 % of rated voltage . 24
9.3 Voltage dips and interruptions . 24
9.4 Supply frequency variations . 25
9.5 Surge immunity tests . 25
9.6 Electrical fast transient/burst . 25
9.7 Immunity to conducted disturbances induced by radio frequency fields . 25
9.8 Immunity to radiated disturbances induced by radio frequency fields . 25
9.9 Electrostatic discharge tests . 25
9.10 Power frequency magnetic field immunity tests . 25
9.11 Harmonics and interharmonics including mains signalling at a. c. power port, low
frequency immunity tests . 25
10 Marking, instructions . 25
10.1 Marking . 25
10.2 Instructions . 26
10.3 Warning notice . 27
Annex A (informative) Abbreviations and symbols . 28
Annex B (informative) Leak-tightness test for gas controls – volumetric method . 29
Annex C (informative) Leak-tightness test for gas controls – pressure loss method . 30
Annex D (normative) Calculation of pressure loss into leakage rate . 31
Annex E (normative) Electrical/electronic component fault modes . 32
Annex F (normative) Additional requirements for safety accessories and pressure
accessories as defined in EU Directive 2014/68/EU . 33
Annex G (normative) Materials for pressurized parts . 34
Annex H (normative) Additional materials for pressurized parts . 35
Annex I (normative) Requirements for controls used in DC supplied burners and
appliances burning gaseous or liquid fuels . 36
Annex J (normative) Method for the determination of a Safety Integrity Level (SIL) . 37
Annex K (normative) Method for the determination of a Performance Level (PL). 38
K.1 Scope . 38
K.2 Normative references . 38
K.3 Terms and definitions . 38
K.4 Performance. 38
K.5 Marking, instructions . 40
Annex L (informative) Relationship between Safety Integrity Level (SIL) and Performance
Level (PL) . 41
Annex M (normative) Reset functions . 42
Annex N (informative) Guidance document on Environmental Aspects . 43
Annex O (normative) Seals of elastomer, cork and synthetic fibre mixtures . 44
Annex AA (informative) Model of a FMEA for valves . 45
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/426 aimed to be covered . 63
Bibliography . 66
European foreword
This document (EN 161:2022+A1:2025) 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 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 October 2025, and conflicting national standards shall
be withdrawn at the latest by April 2028.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
th
This document includes Amendment 1 approved by CEN on 5 of February 2025.
!This document supersedes EN 161:2022."
!Deleted text"
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
!This document differs from EN 161:2022 as follows: Annex ZA has been brought in line with Mandate
M/595 and updates to Annex ZA."
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) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, 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, Türkiye and the United
Kingdom.
Introduction
This document is intended to be used in conjunction with EN 13611:2019.
EN 13611:2019 recognizes the safety level specified by CEN/TC 58 and is regarded as a horizontal
standard dealing with the safety, construction, performance and testing of controls for burners and
appliances burning gaseous and/or liquid fuels.
The general requirements for controls are given in EN 13611:2019, and methods for classification and
assessment for new controls and control functions are given in EN 14459:2021 (see Figure 1).
EN 126:2012 (see Figure 1) specifies multifunctional controls combining two or more controls and
Application Control Functions, one of which is a mechanical control function. The requirements for
controls and Application Control Functions are given in the specific control standard (see Figure 1,
control functions).
Figure 1 — Interrelation of control standards
EN 13611:2019 should be used in conjunction with the specific standard for a specific type of control (e.g.
!EN 88-1:2022+A1:2023", !EN 88-2:2022+A1:2024", !EN 88-3:2022+A1:2024",
!EN 125:2022+A1:2024", EN 126:2012, EN 161:2022, !EN 257:2022+A1:2023", EN 298:2022,
!EN 1106:2022+A1:2023", EN 1643:2022, !EN 1854:2022+A1:2023", EN 12067-2:2022,
!EN 16304:2022+A1:2024", EN 16340:2014, EN 16678:2022 and
!EN 16898:2022+A1:2023"), or for controls for specific applications.
EN 13611:2019 can also be applied, so far as reasonable, to controls not mentioned in a specific standard
and to controls designed on new principles, in which case additional requirements can be necessary.
EN 14459:2021 provides methods for classification and assessment of new control principles.
Primarily in industrial applications it is common practice to rate the safety of a plant based on values
describing the likelihood of a dangerous failure. These values are being used to determine Safety Integrity
Levels or Performance Levels when the system is being assessed in its entirety.
CEN/TC 58 standards for safety relevant controls do go beyond this approach, because for a certain life
time for which the product is specified, designed and tested a dangerous failure is not allowed at all.
Failure modes are described and assessed in greater detail.
Measures to prevent from dangerous situations are defined. Field experience over many decades is
reflected in the CEN/TC 58 standards. Requirements of EN 13611:2019 can be considered as proven in
practice.
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 subclauses to the structure of EN 13611:2019 which are particular to this
document. Subclauses which are additional to those in EN 13611:2019 are numbered starting from 101.
Additional Annexes are designated as Annex AA, Annex BB, Annex CC etc. It should be noted that these
clauses, subclauses and Annexes are not indicated as an addition.
If by reference to EN 13611:2019 the term “control” is given, this term should be read as “valve”.
This document establishes methodologies for the determination of a Performance Level (PL) in
accordance with EN 13611:2019, Annexes K and L.
EN 161 compliance for valves cannot be claimed based upon Performance Level (PL) classification
according to EN ISO 13849-1:2015 or Safety Integrity Level (SIL) classification according to
EN 61508-1:2010.
Valves with PL or SIL classification do not automatically meet the requirements of this document.
Performance Level (PL) classification according to EN ISO 13849-1:2015 or Safety Integrity Level (SIL)
classification according to EN 61508-1:2010 cannot be claimed based upon compliance with this
standard only.
1 Scope
EN 13611:2019, Clause 1 applies with the following modification and addition:
Modification:
st
The 1 paragraph of EN 13611:2019, Clause 1 is replaced by:
This document specifies the safety, design, construction, and performance requirements and testing for
automatic shut-off valves for burners and appliances burning one or more gaseous fuels, hereafter
referred to as “valves”.
This document is applicable to valves with declared maximum inlet pressures up to and including
500 kPa and of nominal connection sizes up to and including DN 250.
Addition:
This document is applicable to:
— electrically actuated valves;
— valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to
any external electrical devices for switching the control signal or actuating energy;
— valves where the flow rate is controlled by external electrical signals, either in discrete steps or
proportional to the applied signal;
— valves fitted with closed position indicator switches.
An assessment method for valve designs is given by this document.
th
The 4 paragraph of EN 13611:2019, Clause 1 is removed.
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 30-1-4:2012, Domestic cooking appliances burning gas — Safety — Part 1-4: Appliances having one or
more burners with an automatic burner control system
EN 298:2022, Automatic gas burner control systems for gas burners and gas burning appliances with or
without fans
EN 13611:2019 , Safety and control devices for burners and appliances burning gaseous and/or liquid
fuels — General requirements
EN 13906-1:2013, Cylindrical helical springs made from round wire and bar — Calculation and design —
Part 1: Compression springs
EN 13906-2:2013, Cylindrical helical springs made from round wire and bar — Calculation and design —
Part 2: Extension springs
As impacted by EN 13611:2019/AC:2021.
EN 60730-1:2016 , Automatic electrical controls for household and similar use — Part 1: General
requirements (IEC 60730-1:2013, modified)
EN IEC 61058-1:2018, Switches for appliances — Part 1: General requirements (IEC 61058-1:2016)
EN 175301-803:2006, Detail Specification: Rectangular connectors — Flat contacts, 0,8 mm thickness,
locking screw not detachable
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13611:2019 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.101
automatic shut-off valve
valve which opens when energized and closes automatically when de-energized
3.102
actuating mechanism
part of the valve which moves the closure member
3.103
valve with step control
valve which controls the flow rate in steps
3.104
valve with modulating control
valve which controls the flow rate continuously between two limits in response to external electrical
signals
3.105
closed position indicator switch
switch fitted to a valve which indicates when the closure member is in the closed position
3.106
actuating energy
required energy for the actuating mechanism to move the closure member to the open position
Note 1 to entry: The actuating energy can have an external source (electrical, pneumatic or hydraulic) and can be
transformed inside the valve.
3.107
opening force
force required to move the closure member to the open position
As impacted by EN 60730-1:2016/A1:2019 and EN 60730-1:2016/A2:2022.
3.108
closing force
force available to close the valve, independent of any force provided by fuel gas pressure
3.109
sealing force
force acting on the valve seat when the closure member is in the closed position, independent of any force
provided by fuel gas pressure
3.110
frictional force
largest force required to move the actuating mechanism and the closure member from the open position
to the closed position with the closure spring removed, independent of any force provided by fuel gas
pressure
3.111
actuating pressure
hydraulic or pneumatic pressure supplied to the actuating mechanism of the valve
3.112
opening time
time interval between energizing the valve and the attainment of the maximum or other defined flow rate
3.113
closing time
time interval between de-energizing the valve and the closure member attaining the closed position
3.114
delay time
time interval between energizing the valve and the start of flow
3.115
control valve
valve which controls the fluid (e.g. compressed air) supplied to the actuating mechanism
3.116
balanced valve
valve with a balanced closure member where the inlet pressure acts on the closure member in the
opening and closing direction
Note 1 to entry: The closure member can close more than one opening.
3.117
power saving circuit
circuit, which reduces the power consumption of the valve during the open phase
4 Classification
4.1 Classes of control
EN 13611:2019 is replaced by the following:
— Class A, B and C valves
Valves where the sealing force is not decreased by the gas inlet pressure. They are classified A, B or C
according to the sealing force requirements of 7.105.1. Balanced valves according to this standard
are class A valves.
— Class D valves
Valves which are not subject for requirements for the sealing force and fixed closing time.
Class D valves are intended to be used for control functions only.
— Class J valves
Disc-on-seat valves where the sealing force is not decreased by the gas inlet pressure and which meet
the requirements of 7.105.1.
4.2 Groups of control
Shall be according to EN 13611:2019, 4.2.
4.3 Classes of control functions
EN 13611:2019, 4.3 is not applicable.
4.4 Types of DC supplied controls
Shall be according to EN 13611:2019, 4.4.
5 Test conditions and uncertainty of measurements
Shall be according to EN 13611:2019, Clause 5.
6 Design and construction
6.1 General
Shall be according to EN 13611:2019, 6.1.
6.2 Mechanical parts of the control
6.2.1 Appearance
Shall be according to EN 13611:2019, 6.2.1.
6.2.2 Holes
Shall be according to EN 13611:2019, 6.2.2.
6.2.3 Breather holes
Shall be according to EN 13611:2019, 6.2.3.
6.2.4 Screwed fastenings
Shall be according to EN 13611:2019, 6.2.4.
6.2.5 Jointing
Shall be according to EN 13611:2019, 6.2.5.
6.2.6 Moving parts
Shall be according to EN 13611:2019, 6.2.6.
6.2.7 Sealing caps
Shall be according to EN 13611:2019, 6.2.7.
6.2.8 Dismantling and reassembly
Shall be according to EN 13611:2019, 6.2.8.
6.2.9 Auxiliary canals and orifices
Shall be according to EN 13611:2019, 6.2.9.
6.2.10 Presetting device
Shall be according to EN 13611:2019, 6.2.10.
6.2.101 Design
There shall be no exposed shafts or operating levers which could adversely affect the ability of valves to
close.
6.2.102 Closed position indicator switch
Closed position indicator switches, where fitted, shall not impair the correct operation of valves.
Adjusters shall be sealed to indicate interference. Any drift of the switch and actuating mechanism from
its setting shall not impair correct valve operation. Conformity with these requirements is determined by
the test according to 7.107.3.
6.2.103 Valve with modulating control
Flow rates of valves with modulating control shall be adjustable over the full range as stated in the
instructions. If the adjustment of one flow rate affects the setting of any other flow rate, this shall be
clearly indicated in the instructions for setting up. The setting of any flow rate shall require the use of
mechanical or electrical tools and shall be designed to discourage unauthorized adjustment.
NOTE For gas/air ratio controls see !EN 88-1:2022+A1:2023" and EN 12067-2:2022.
6.2.104 Controls assembled to a valve
Other controls assembled to a valve shall not interfere with its shut-off function.
6.2.105 Balanced valves
The closure member of a balanced valve shall have a resulting force in the closing direction where the
sealing force is not decreased by the gas inlet pressure.
For a balanced valve with one port a resulting force in the closing direction shall remain, if the balancing
force is removed, and the closure member shall have the same closing direction as the flow direction
through the valve.
6.2.106 Closing and sealing
6.2.106.1 Closing and/or sealing by means of springs
If springs are used for closing and/or sealing the valve, they shall be designed according to
EN 13906-1:2013 or EN 13906-2:2013 for static and dynamic loading.
6.2.106.2 Other means for closing and/or sealing
6.2.106.2.1 General
This clause defines a method for the assessment of other means for closing and/or sealing in automatic
shut-off valves.
By this clause the term “class of control function A, B or C” is not related to the sealing force classes but
to the class of control function as described in 4.3.
Sealing force of valves shall be classified according to 4.1.
The basic risks of fire and explosion in a gas appliance as a result of uncontrolled gas flow requires a
control function class C system for the gas shut-off function. This is based on a comparison, made between
automatic burner controller and gas shut-off function, the class of control function of each of them being
considered equal.
Although this document is not based on a fault assessment approach as specified in EN 13611:2019, 6.6,
the combination of two automatic shut-off valves is considered equal to a control function class C. This
assumption is based on the construction and performance requirements of this document.
6.2.106.2.2 New designs for closing and/or sealing
New designs for closing and/or sealing shall fulfil at least the requirements of a control function class B.
In all cases the gas shut-off function shall be a control function class C.
During the testing, the valve shall fulfil the performance requirements of Clause 7.
New designs may consist of a combination of closure members, electronic controller, sensing elements,
actuators, lockout and reset.
Other means for closing and/or sealing shall be described in the design documentation.
For the assessment of the new design the requirements of this document shall be used in combination
with EN 13611:2019, 6.6. If this leads to aspects that are not described in this document, a failure mode
analysis on the new design shall be supplied with the design documentation.
This analysis shall describe the specific failure modes for the type of technology used in relation to the
following basic safety requirements:
a) closing function at power interruption;
b) leak tightness;
c) sealing force (ability to withstand backpressure, to be checked by testing or calculation);
d) closing force > friction force;
e) closing time including the influence to the automatic burner control system according to
EN 298:2022;
f) no uncontrolled opening of the automatic shut-off valve.
As a result of this failure mode analysis, additional constructional requirements shall be fulfilled and/or
additional faults compared to EN 13611:2019, Annex E shall be included into the fault assessment.
The outcome of the analysis shall provide a set of conditions under which the new design can be used in
an automatic shut-off valve. These conditions involve construction requirements, safety requirements,
performance requirements and test methods.
The fault reaction time shall be stated in the instructions.
Failure of mechanical parts adversely affecting the performance requirements of this document is
considered as an abnormal situation and shall therefore be considered as a first fault according to the test
method in EN 13611:2019, 6.6.
However, if mechanical parts are designed according to the relevant constructional requirements of
Clause 6 of this document, failure of these parts is not considered.
6.2.107 Additional requirements for shut-off function
6.2.107.1 Diaphragms that assist the shut-off function
Shut-off functions using a diaphragm to apply (part of) the closing force to the closure member shall be
designed in such a way that, when the diaphragm is damaged, the closure member closes and the
maximum internal leakage rate of the valve is limited to 1 dm /h. Conformity shall be verified by the
method given in 6.2.107.2.
6.2.107.2 Leakage test
Remove or rupture the part(s) assisting the shut-off function. De-energize the valve. Measure the internal
leakage rate of the valve according to 7.2.
6.3 Materials
6.3.1 General material requirements
Shall be according to EN 13611:2019, 6.3.1.
6.3.2 Housing
Shall be according to EN 13611:2019, 6.3.2.
6.3.3 Zinc alloys
Shall be according to EN 13611:2019, 6.3.3.
6.3.4 Springs
Shall be according to EN 13611:2019, 6.3.4.
6.3.5 Resistance to corrosion and surface protection
Shall be according to EN 13611:2019, 6.3.5.
6.3.6 Impregnation
Shall be according to EN 13611:2019, 6.3.6.
6.3.7 Seals for glands for moving parts
Shall be according to EN 13611:2019, 6.3.7.
6.3.101 Closure members
Closure members of valves above DN 25 shall either have a mechanical support (e.g. metallic) to
withstand the sealing force or shall be made of metal.
This requirement also applies to:
— all valves with a maximum inlet pressure above 15 kPa;
— parts transmitting the closing force.
The strength of the connection between closure members of a balanced valve shall be at least four
multiplied by the maximum inlet pressure multiplied by the total opening area of the closure members.
6.4 Gas connections
6.4.1 Making connections
Shall be according to EN 13611:2019, 6.4.1.
6.4.2 Connection sizes
Shall be according to EN 13611:2019, 6.4.2.
6.4.3 Threads
Shall be according to EN 13611:2019, 6.4.3.
6.4.4 Union joints
Shall be according to EN 13611:2019, 6.4.4.
6.4.5 Flanges
Shall be according to EN 13611:2019, 6.4.5.
6.4.6 Compression fittings
Shall be according to EN 13611:2019, 6.4.6.
6.4.7 Nipples for pressure test
Shall be according to EN 13611:2019, 6.4.7.
6.4.8 Strainers
Shall be according to EN 13611:2019, 6.4.8 with the following addition:
Class J valves shall incorporate an inlet strainer. The maximum strainer hole dimension shall not exceed
0,28 mm and it shall prevent the passage of a 0,2 mm diameter pin gauge.
6.5 Electrical parts of the control
6.5.1 General
Shall be according to EN 13611:2019, 6.5.1.
6.5.2 Switching elements
EN 13611:2019, 6.5.2 is not applicable.
NOTE Requirements for closed position indicator switches are given in 7.106.1.
6.5.3 Electrical components
6.5.3.1 Performance of electrical components
Shall be according to EN 13611:2019, 6.5.3.1.
6.5.3.2 Tests
Shall be according to EN 13611:2019, 6.5.3.2.
6.5.3.3 Sensing element
EN 13611:2019, 6.5.3.3 is not applicable.
6.5.3.4 Gas controls employing electrical components in the gas circuit
Shall be according to EN 13611:2019, 6.5.3.4.
6.6 Protection against internal faults for the purpose of functional safety
EN 13611:2019, 6.6 is not applicable.
6.101 Pneumatic and hydraulic actuating mechanisms
Pneumatically or hydraulically actuated valves shall be provided with protection to ensure that the
blockage of an orifice in the control system does not adversely affect the relevant performance
requirements as given in Clause 7.
If the performance of the actuating mechanism depends on the quality of compressed air or hydraulic
fluid, appropriate information shall be stated in the instructions.
7 Performance
7.1 General
Shall be according to EN 13611:2019, 7.1 with the following addition:
Valves shall close automatically when de-energized or in the absence of actuating energy.
The el
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SIST EN 161:2022+A1:2025 문서는 가스 버너 및 가스 기기의 자동 차단 밸브에 대한 안전, 설계, 구조 및 성능 요구사항을 체계적으로 규정하고 있습니다. 본 표준의 주요 강점은 세부적인 테스트 요구사항과 함께 안전성을 높이는 설계 원칙을 제공한다는 점입니다. 이 표준은 500 kPa 이하의 최대 유입 압력과 DN 250 이하의 명목 연결 크기를 가진 밸브에 적용됩니다. 또한, 전기 작동 밸브, 전기적으로 작동되는 유체의 제어 밸브가 포함된 밸브 등 다양한 유형의 밸브를 아우르는 범위를 갖추고 있습니다. 이는 전통적인 가스 밸브뿐만 아니라 최신 전기 제어 시스템에도 적용 가능하다는 것을 의미합니다. 자동 차단 밸브의 안전성을 강화하기 위한 평가 방법 또한 제공되어, 제조자와 엔지니어들이 보다 신뢰할 수 있는 제품을 개발할 수 있도록 지원합니다. 전기 신호에 의해 흐름 속도를 조절하는 기능이 포함된 밸브는 더 높은 정밀성과 반응성을 자랑하여 최신의 기술적 요구를 충족합니다. 결과적으로, SIST EN 161:2022+A1:2025 표준은 가스 산업에서 필요한 신뢰성과 안전성의 기준을 설정하고 있으며, 이는 가스 기기의 안전한 운영을 위한 필수 요소로서 많은 관련 업계에서 큰 가치를 지니고 있습니다.
標準の範囲として、EN 161:2022+A1:2025は、ガスバーナーおよびガス機器用の自動遮断弁に関する安全性、設計、構造、性能要求事項及び試験を規定しています。具体的には、ガス燃料を使用するバーナーや機器に適用され、最大入圧500 kPa、接続サイズはDN 250までの弁に焦点を当てています。この標準は、業界における安全性を高める重要な基準となっています。 この標準の強みは、特に電動作動弁や流体による作動弁に対する明確な適用範囲を定めている点です。これにより、設計者や製造者は、要求される性能基準を正確に理解し遵守することができます。また、外部の電気信号に基づく流量制御を行う弁や、閉位置表示スイッチが装備された弁に対する基準を含むことで、より幅広い技術に対応しています。このように明確な分類と基準の設定は、弁の設計や評価において確実性を与えます。 さらに、この文書には弁設計の評価方法が示されています。これにより、設計者は安全性と性能を評価するための具体的なアプローチを持つことができ、業界のスタンダード確立に寄与します。EN 161:2022+A1:2025は、ガス機器の安全性確保に対する重要な取り組みを示しており、その関連性は業界の変化や技術の進歩に対応した内容にあります。
Die Norm EN 161:2022+A1:2025 beschreibt umfassend die Sicherheits-, Konstruktions- und Leistungsanforderungen sowie die Prüfmethoden für automatische Absperrventile, die in Gasbrennern und Gasgeräten verwendet werden. Diese Norm ist besonders relevant für die Gewährleistung der Sicherheit und Effizienz in der Verwendung von gasbetriebenen Geräten und stellt sicher, dass die Ventile unter speziellen Bedingungen optimal funktionieren. Ein hervorzuhebender Punkt dieser Norm ist der erweiterte Anwendungsbereich, der nicht nur elektrisch betätigte Ventile umfasst, sondern auch solche, die von Fluiden angesteuert werden, sofern die Regelventile elektrisch aktiviert werden. Dies erweitert die Vielseitigkeit und Anwendbarkeit der Norm auf moderne, innovative Lösungen in der Gasnutzung. Zudem erfordert die Norm eine klare Definition der möglichen maximalen Eingangsdruckwerte von bis zu 500 kPa sowie Nennanschlussgrößen bis DN 250, was eine standardisierte Basis für Hersteller und Anwender schafft. Ein weiterer wesentlicher Vorteil der EN 161:2022+A1:2025 ist, dass sie die Anforderungen an Ventile mit geschlossenem Positionsschalter präzisiert. Dies fördert nicht nur die Sicherheit, sondern ermöglicht auch eine effizientere Überwachung des Betriebszustands der Ventile. Zudem wird die Bewertungsmethode für die Entwurfsprüfung von Ventilen durch die Norm klar festgelegt, was Herstellern hilft, die Einhaltung der Sicherheitsstandards zu gewährleisten und die Qualitätskontrolle zu verbessern. Insgesamt bietet die Norm EN 161:2022+A1:2025 eine umfassende und aktuelle Grundlage für die Entwicklung und den Einsatz von automatischen Absperrventilen in gasbetriebenen Anwendungen. Sie stellt sicher, dass sowohl Sicherheits- als auch Leistungsanforderungen erfüllt werden, was sie zu einem unverzichtbaren Dokument für Hersteller, Prüfinstitutionen und Anwender im Bereich der Gastechnik macht.
La norme EN 161:2022+A1:2025 concernant les vannes de coupure automatiques pour brûleurs et appareils à gaz offre un cadre détaillé et précis pour assurer la sécurité et l'efficacité dans l'utilisation des vannes dans les systèmes de gaz. Elle s'appuie sur la norme EN 13611:2019 en modifiant et en ajoutant des clauses spécifiques qui élargissent son champ d'application. L'une des principales forces de cette norme est son attention portée aux exigences de sécurité, de conception, de construction et de performance pour les vannes destinées aux appareils brûlant un ou plusieurs combustibles gazeux. En précisant des critères pour les vannes ayant des pressions d'entrée maximales déclarées allant jusqu'à 500 kPa et des tailles de connexion nominales jusqu'à DN 250, la norme s'adresse à un large éventail d'applications industrielles et domestiques, rendant son utilisation pertinente et nécessaire. De plus, l'ajout de dispositions pour les vannes électriquement actionnées et celles qui utilisent des signaux électriques externes pour contrôler le débit souligne la flexibilité de la norme face aux évolutions technologiques. La possibilité d'intégrer des indicateurs de position fermée renforce également la sécurité et la transparence dans le fonctionnement des systèmes à gaz. La mise en place d'une méthode d'évaluation pour les conceptions de vannes constitue un atout majeur, permettant aux fabricants et aux utilisateurs d'évaluer l'adéquation des leurs produits par rapport aux exigences établies. En supprimant des éléments obsolètes de la norme précédente, EN 161:2022+A1:2025 se positionne comme un document vivant et adaptable, capable de répondre aux besoins d'un secteur en constante mutation. Dans l'ensemble, cette norme est extrêmement pertinente, car elle non seulement harmonise les exigences techniques pour les vannes de coupure, mais elle garantit également la sécurité des utilisateurs et la performance fiable des appareils à gaz. Par conséquent, elle se révèle indispensable pour tous les acteurs du secteur désirant se conformer aux normes de sécurité modernes tout en assurant un fonctionnement optimal de leurs installations.
The standard EN 161:2022+A1:2025 provides a comprehensive framework for the safety, design, construction, and performance requirements related to automatic shut-off valves for gas burners and gas appliances. Its scope is clearly defined, aligning itself with EN 13611:2019, Clause 1, while incorporating essential modifications and additions that strengthen its applicability and relevance in the field. One of the notable strengths of this standard is its provision for valves operating under declared maximum inlet pressures of up to 500 kPa and nominal connection sizes up to DN 250. This versatility ensures that the standard is relevant not only for a wide range of applications but also caters to the varied requirements of different gas appliances. Furthermore, the inclusion of electrically actuated valves and those actuated by fluids underlines the standard's forward-thinking approach, accommodating emerging technologies in valve control mechanisms. The addition of specifications for valves responding to external electrical signals, whether in discrete steps or proportionately, adds significant depth to the standard. This feature is particularly pertinent in modern gas appliances that are increasingly reliant on sophisticated electronic control systems. By encompassing valves equipped with closed position indicator switches, the standard enhances safety measures, allowing for clear status indications during operation, which is vital for maintenance and troubleshooting. The assessment method for valve designs included in this document offers assurance to manufacturers and end-users that the valves meet the stringent safety and performance criteria laid out in the standard. The removal of the 4th paragraph of EN 13611:2019 provides clarity and focus, ensuring that the essential requirements are not diluted by redundant or outdated information. Overall, SIST EN 161:2022+A1:2025 stands as a robust standard that contributes significantly to the safe implementation and operation of automatic shut-off valves in gas systems. Its detailed specifications and adaptability to modern technologies make it a critical reference for manufacturers, regulators, and users concerned with safety and performance in gas burner and appliance applications.
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