Pressure regulators and associated safety devices for gas appliances - Part 1: Pressure regulators for inlet pressures up to and including 50 kPa

This European Standard specifies the safety, construction and performance requirements for pressure regulators, pneumatic gas/air ratio pressure regulators, and zero pressure (atmospheric pressure) regulators, intended for use with gas burners, gas appliances and similar use, hereafter referred to as ‘pressure regulators’.
This European Standard covers type testing only.
It applies to pressure regulators of nominal connection sizes up to and including DN 250 with declared maximum inlet pressures up to and including 500 mbar (50 kPa) for use with one or more fuel gases of the first, second, and third families.
It applies to pressure regulators which use auxiliary energy.
This European Standard applies to pneumatic gas/air ratio pressure regulators, which function by controlling an gas outlet pressure in response to a air signal pressure (or air signal differential pressure) and/or to a furnace pressure signal, but gas/air ratio pressure regulators which change an air outlet pressure in response to a gas signal pressure (or gas signal differential pressure) are included.
This European Standard applies to zero pressure (atmospheric pressure) regulators, which control an outlet pressure at a value equal or close to atmospheric pressure.
This European Standard does not cover:
a) pressure regulators connected directly to mains pipework or to a container that maintains a standard distribution pressure;
b) pressure regulators intended for gas appliances to be installed in the open air and exposed to the environment;
c) mechanical linked gas/air ratio pressure regulators;
d) electronical linked gas/air ratio pressure regulators.

Druckregler und zugehörige Sicherheitseinrichtungen für Gasgeräte - Teil 1: Druckregler für Eingangsdrücke bis einschließlich 50 kPa

Diese Europäische Norm legt die Sicherheits-, Konstruktions- und Leistungsanforderungen an Druckregler und pneumatische Gas-Luft-Verbundregler fest (Nulldruckregler sind als besonderer Typ von pneumatischen Gas-Luft-Verbundreglern eingeschlossen), die für die Verwendung mit Gasbrennern, Gasgeräten und ähnlichen Geräten, vorgesehen sind, nachstehend als „Druckregler“ bezeichnet.
Diese Europäische Norm gilt für:

Druckregler mit Anschlussnennweiten bis einschließlich DN 250 mit angegebenen maximalen Eingangs-drücken bis einschließlich 50 kPa (500 mbar) für die Verwendung mit einem oder mehreren Brenngasen nach EN 437;

Druckregler, die elektrische Hilfsenergie benötigen;

pneumatische Gas-Luft-Verbundregler (Nulldruckregler sind als besonderer Typ von pneumatischen Gas-Luft-Verbundreglern eingeschlossen), die einen Gasausgangsdruck in Abhängigkeit von einem Luft-signaldruck, einem Luftsignal-Differenzdruck und/oder einem Feuerraumdrucksignal regeln;
- Gas-Luft-Verbundregler, die eine Änderung des Luftausgangsdrucks in Abhängigkeit von einem Gas-signaldruck oder einem - Gassignal-Differenzdruck regeln;
Diese Europäische Norm gilt nicht für:
- Druckregler, die unmittelbar an ein Gasverteilungsnetz oder an einen Behälter mit genormtem Verteilungsdruck angeschlossen sind;
- Druckregler für Gasgeräte in Freiluftausführung, die Umwelteinflüssen ausgesetzt sind;
- mechanisch verbundene Gas-Luft-Verbundregler;
- elektronische Gas-Luft-Verbundregler (EN 12067-2).

Régulateurs de pression et dispositifs de sécurité associés pour appareils à gaz - Partie 1: Régulateurs de pression pour pression amont inférieure ou égale à 50 kPas

La présente Norme européenne spécifie les exigences en termes de sécurité, de construction et de
fonctionnement des régulateurs de pression et des régulateurs pneumatiques de pression du rapport air/gaz
(les détendeurs à pression atmosphérique sont inclus à titre de modèle spécial de régulateur pneumatique de
pression du rapport air/gaz), destinés à équiper des brûleurs à gaz, des appareils à gaz et des dispositifs
analogues, désignés par la suite par « régulateurs de pression ».
La présente Norme européenne s'applique :
- aux régulateurs de pression supportant des pressions amont maximales déclarées inférieures ou égales
à 50 kPa (500 mbar), ayant un diamètre nominal de raccordement jusqu'à DN 250 inclus, et destinés à
être utilisés avec un ou plusieurs combustibles gazeux conformément à l'EN 437 ;
- aux régulateurs de pression alimentés par une énergie auxiliaire ;
- aux régulateurs pneumatiques de pression du rapport air/gaz, qui fonctionnent en délivrant une pression
de gaz en sortie en réponse à un signal de pression d’air, à un signal de pression différentielle d’air et/ou
à un signal de pression de combustion (les détendeurs à zéro sont inclus à titre de modèle spécial de
régulateurs pneumatiques de pression du rapport air/gaz) ;
- aux régulateurs de pression du rapport air/gaz qui font varier une pression d'air en sortie en fonction d’un
signal de pression de gaz ou d’un signal de pression différentielle de gaz.
La présente Norme européenne ne couvre pas:
- les régulateurs de pression raccordés directement au réseau de distribution de gaz ou à un récipient qui
maintient une pression de distribution normalisée ;
- les régulateurs de pression destinés à des appareils à gaz qui doivent être installés en plein air et
exposés aux intempéries ;
- les dispositifs de régulation du rapport air/gaz liés mécaniquement ;
- les dispositifs électroniques de régulation du rapport air/gaz (EN 12067-2).

Tlačni regulatorji in pripadajoče varnostne naprave za plinske aparate - 1. del: Tlačni regulatorji za vstopne tlake do vključno 500 mbar (50 kPa)

Ta evropski standard določa zahteve za varnost, konstrukcijo in delovanje tlačnih regulatorjev, pnevmatskih tlačnih regulatorjev z razmerjem med plinom in zrakom ter regulatorjev ničelnega (atmosferskega) tlaka za uporabo s plinskimi gorilniki, plinskimi aparati in za podobno uporabo, v nadaljevanju »tlačni regulatorji«.
Ta evropski standard zajema samo tipsko preskušanje.
Velja za tlačne regulatorje z nazivnimi velikostmi priključkov do vključno DN 250 in nazivnimi maksimalnimi vstopnimi tlaki do vključno 500 mbar (50 kPa) za uporabo z enim ali več kurilnimi plini prve, druge in tretje družine.
Velja za tlačne regulatorje, ki uporabljajo pomožno energijo.
Ta evropski standard velja za pnevmatske tlačne regulatorje z razmerjem med plinom in zrakom, ki delujejo s krmiljenjem izhodnega tlaka plina kot odziv na signal zračnega tlaka (ali signal diferencialnega zračnega tlaka) in/ali na signal tlaka iz peči, vendar so vključeni tudi tlačni regulatorji z razmerjem med plinom in zrakom, ki spreminjajo izhodni zračni tlak kot odziv na signal plinskega tlaka (ali signal diferencialnega plinskega tlaka).
Ta evropski standard velja za ničelne (atmosferske) tlačne regulatorje, ki krmilijo izhodni tlak pri vrednosti, ki je enaka ali blizu atmosferskemu tlaku.
Ta evropski standard ne zajema:
a) tlačnih regulatorjev, ki so povezani neposredno na glavni cevovod ali vsebnik, ki vzdržuje standardni distribucijski tlak;
b) tlačnih regulatorjev za a, plinske aparate za vgradnjo na odprtem, ki so izpostavljeni okolju;
c) mehansko povezanih tlačnih regulatorjev z razmerjem med plinom in zrakom;
d) elektronsko povezanih tlačnih regulatorjev z razmerjem med plinom in zrakom.

General Information

Status
Withdrawn
Public Enquiry End Date
09-Oct-2009
Publication Date
18-Aug-2011
Withdrawal Date
13-Mar-2016
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
11-Mar-2016
Due Date
03-Apr-2016
Completion Date
14-Mar-2016

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SLOVENSKI STANDARD
SIST EN 88-1:2011
01-september-2011
1DGRPHãþD
SIST EN 12067-1:1999
SIST EN 12067-1:1999/A1:2004
SIST EN 12078:1999
SIST EN 88-1:2008
7ODþQLUHJXODWRUMLLQSULSDGDMRþHYDUQRVWQHQDSUDYH]DSOLQVNHDSDUDWHGHO
7ODþQLUHJXODWRUML]DYVWRSQHWODNHGRYNOMXþQRPEDU N3D

Pressure regulators and associated safety devices for gas appliances - Part 1: Pressure

regulators for inlet pressures up to and including 50 kPa

Druckregler und zugehörige Sicherheitseinrichtungen für Gasgeräte - Teil 1: Druckregler

für Eingangsdrücke bis einschließlich 50 kPa

Régulateurs de pression et dispositifs de sécurité associés pour appareils à gaz - Partie

1: Régulateurs de pression pour pression amont inférieure ou égale à 50 kPas
Ta slovenski standard je istoveten z: EN 88-1:2011
ICS:
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
SIST EN 88-1:2011 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 88-1:2011
---------------------- Page: 2 ----------------------
SIST EN 88-1:2011
EUROPEAN STANDARD
EN 88-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2011
ICS 23.060.40 Supersedes EN 12067-1:1998, EN 12078:1998, EN 88-
1:2007
English Version
Pressure regulators and associated safety devices for gas
appliances - Part 1: Pressure regulators for inlet pressures up to
and including 50 kPa

Régulateurs de pression et dispositifs de sécurité associés Druckregler und zugehörige Sicherheitseinrichtungen für

pour appareils à gaz - Partie 1: Régulateurs de pression Gasgeräte - Teil 1: Druckregler für Eingangsdrücke bis

pour pression amont inférieure ou égale à 50 kPa einschließlich 50 kPa
This European Standard was approved by CEN on 26 February 2011.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 88-1:2011: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 88-1:2011
EN 88-1:2011 (E)
Contents Page

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

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

2 Normative references ............................................................................................................................7

3 Terms and definitions ...........................................................................................................................8

4 Classification ....................................................................................................................................... 11

4.1 Classes of control ............................................................................................................................... 11

4.2 Groups of control................................................................................................................................ 11

4.3 Classes of control functions ............................................................................................................. 11

5 Units of measurement and test conditions ...................................................................................... 11

6 Construction requirements ................................................................................................................ 12

6.1 General ................................................................................................................................................. 12

6.2 Mechanical parts of the control ......................................................................................................... 12

6.2.1 Appearance ......................................................................................................................................... 12

6.2.2 Holes .................................................................................................................................................... 12

6.2.3 Breather holes ..................................................................................................................................... 12

6.2.4 Test for leakage of breather holes .................................................................................................... 12

6.2.5 Screwed fastenings ............................................................................................................................ 13

6.2.6 Jointing ................................................................................................................................................ 13

6.2.7 Moving parts ........................................................................................................................................ 13

6.2.8 Sealing caps ........................................................................................................................................ 13

6.2.9 Dismantling and reassembly ............................................................................................................. 13

6.2.101Adjustments ........................................................................................................................................ 13

6.2.102Resistance to pressure ...................................................................................................................... 13

6.2.103Blockage of canals and orifices ........................................................................................................ 13

6.2.104Signal tube connections .................................................................................................................... 13

6.3 Materials .............................................................................................................................................. 13

6.3.1 General material requirements .......................................................................................................... 13

6.3.2 Housing ................................................................................................................................................ 13

6.3.3 Test for leakage of housing after removal of non-metallic parts ................................................... 14

6.3.4 Zinc alloys ........................................................................................................................................... 14

6.3.5 Springs providing closing and/or sealing force .............................................................................. 14

6.3.6 Resistance to corrosion and surface protection ............................................................................. 14

6.3.7 Impregnation ....................................................................................................................................... 14

6.3.8 Seals for glands for moving parts..................................................................................................... 14

6.4 Gas connections ................................................................................................................................. 14

6.4.1 Making connections ........................................................................................................................... 14

6.4.2 Connection sizes ................................................................................................................................ 14

6.4.3 Threads ................................................................................................................................................ 14

6.4.4 Union joints ......................................................................................................................................... 14

6.4.5 Flanges ................................................................................................................................................ 14

6.4.6 Compression fittings .......................................................................................................................... 15

6.4.7 Nipples for pressure test ................................................................................................................... 15

6.4.8 Strainers .............................................................................................................................................. 15

6.5 Electronic parts of the control ........................................................................................................... 15

6.6 Protection against internal faults for the purpose of functional safety ........................................ 15

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

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

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

7.3 Test for leak tightness ........................................................................................................................ 15

7.3.1 General ................................................................................................................................................. 15

7.3.2 External leak-tightness ...................................................................................................................... 16

7.3.3 Internal leak-tightness ........................................................................................................................ 16

---------------------- Page: 4 ----------------------
SIST EN 88-1:2011
EN 88-1:2011 (E)

7.3.101External leak-tightness for signal carrying compartment(s) .......................................................... 16

7.4 Torsion and bending ........................................................................................................................... 16

7.5 Torsion and bending tests.................................................................................................................. 16

7.6 Rated flow rate ..................................................................................................................................... 16

7.7 Test for rated flow ............................................................................................................................... 16

7.7.1 Apparatus ............................................................................................................................................. 16

7.7.2 Test procedure ..................................................................................................................................... 16

7.7.3 Conversion of air flow rate ................................................................................................................. 16

7.8 Durability .............................................................................................................................................. 16

7.9 Performance tests for electronic controls ........................................................................................ 16

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

7.101 Pressure regulator performance ........................................................................................................ 17

7.101.1General ................................................................................................................................................. 17

7.101.2General test procedure ....................................................................................................................... 18

7.101.3Class A pressure regulator performance .......................................................................................... 20

7.101.4Class B pressure regulator performance .......................................................................................... 20

7.101.5Class C pressure regulator performance .......................................................................................... 21

7.101.6Endurance ............................................................................................................................................ 22

7.101.7Lock-up pressure ................................................................................................................................ 22

7.101.8Requirement for rendered inoperative pressure regulators ........................................................... 23

7.101.9Test for rendered inoperative pressure regulators .......................................................................... 23

7.102 Pneumatic gas/air ratio pressure regulator performance ............................................................... 23

7.102.1General ................................................................................................................................................. 23

7.102.2General test procedure ....................................................................................................................... 23

7.102.3Control performance and stability ..................................................................................................... 24

7.102.4Settling time ......................................................................................................................................... 25

7.102.5Gas/air ratio adjustment ..................................................................................................................... 25

7.102.6Offset adjustment ................................................................................................................................ 26

7.102.7Endurance ............................................................................................................................................ 26

8 EMC/Electrical requirements .............................................................................................................. 26

8.1 Protection against environmental influences................................................................................... 26

8.2 Supply voltage variations below 85 % of rated voltage .................................................................. 27

8.3 Short term voltage interruptions and decreases ............................................................................. 27

8.4 Supply frequency variations .............................................................................................................. 27

8.5 Surge immunity test ............................................................................................................................ 27

8.6 Electrical fast transient/burst ............................................................................................................. 27

8.7 Immunity to conducted disturbances ............................................................................................... 27

8.8 Immunity to radiated fields ................................................................................................................. 27

8.9 Electrostatic discharge immunity test .............................................................................................. 27

8.10 Power frequency magnetic field immunity test ................................................................................ 27

8.11 Electrical requirements ....................................................................................................................... 27

8.11.1 General ................................................................................................................................................. 27

8.11.2 Electrical equipment ........................................................................................................................... 28

9 Marking, installation and operating instructions ............................................................................. 28

9.1 Marking ................................................................................................................................................. 28

9.2 Installation and operating instructions ............................................................................................. 28

9.3 Warning notice ..................................................................................................................................... 30

Annex A (informative) Gas connections in common use in the various countries ................................... 31

Annex B (informative) Leak-tightness test — volumetric method ............................................................... 32

Annex C (informative) Leak-tightness test — pressure loss method .......................................................... 33

Annex D (normative) Conversion of pressure loss into leakage rate ......................................................... 34

Annex E (normative) Electrical/electronic component fault modes ............................................................ 35

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

defined in EC Directive 97/23/EC .................................................................................................................... 36

Annex G (normative) Materials for pressurized parts ................................................................................... 37

---------------------- Page: 5 ----------------------
SIST EN 88-1:2011
EN 88-1:2011 (E)

Annex H (informative) Additional materials for pressurized parts .............................................................. 38

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

appliances ........................................................................................................................................................ 39

Annex AA (informative) Typical pressure regulators and pressure regulator parts ................................. 40

Annex BB (informative) Overview of requirements and test conditions (as given in Clause 7), and

examples of performance curves for pressure regulators .......................................................................... 41

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

Requirements of EC Directive 2009/142/EC relating to appliances burning gaseous fuels .................... 47

Bibliography ..................................................................................................................................................... 49

Figures

Figure 1 — Step response of a transfer element ............................................................................................... 10

Figure 2 — Performance test apparatus............................................................................................................ 19

Figure 3 — Delta p versus rated flow rate curve ............................................................................................... 30

Figure AA.1 — Types of constant pressure regulators ...................................................................................... 40

Figure BB.1 — Example for class A pressure regulator including maximum outlet pressure variations for

constant outlet setting pressure p and lock-up pressure p including typical results .............................. 42

2s 2f

Figure BB.2 — Example for class A pressure regulator including maximum outlet pressure variations for

adjustable outlet setting pressures p , p , and lock-up pressures p , p , including typical

2smin 2smax 2fmin 2fmax

results ......................................................................................................................................................... 43

Figure BB.3 — Example for class A pressure regulator including maximum outlet pressure variation for

constant outlet setting pressure p including typical results ...................................................................... 44

Figure BB.4 — Example for class B pressure regulator including maximum outlet pressure variation for

constant outlet setting pressure p including typical results ...................................................................... 44

Figure BB.5 — Example for class C pressure regulator including maximum outlet pressure variation for

constant outlet setting pressure p including typical results ...................................................................... 45

Tables

Table 1 — Gas pressure at inlet to the pressure regulator ................................................................................ 17

Table 2 — Outlet pressure variation from the outlet setting pressure p .......................................................... 17

Table 3 — Control performance test procedure ................................................................................................ 24

Table BB.1 — Overview of pressure regulator requirements ............................................................................ 41

Table BB.2 — Test procedure ........................................................................................................................... 46

Table ZA.1 — Correspondence between this European Standard and Directive 2009/142/EC relating to

appliances burning gaseous fuels .............................................................................................................. 47

---------------------- Page: 6 ----------------------
SIST EN 88-1:2011
EN 88-1:2011 (E)
Foreword

This document (EN 88-1:2011) 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 2011, and conflicting national standards shall be withdrawn at

the latest by April 2014.

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 88-1:2007, EN 12067-1:1998 and EN 12078:1998.

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 Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.

This document is intended to be used in conjunction with EN 13611:2007. This document refers to clauses of

EN 13611:2007 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 European Standard adds

clauses or sub-clauses to the structure of EN 13611:2007 which are particular to this European Standard. It

should be noted that these clauses and sub-clauses are not indicated as an addition. Sub-clauses or annexes

which are additional to those in EN 13611:2007 are numbered starting from 101 or are designated as Annex

AA, BB, CC etc.

It should be noted that the following significant technical changes compared to the previous edition have been

incorporated in this European Standard:
a) alignment with EN 13611:2007;

b) requirements and tests of Pneumatic gas/air ratio pressure regulators (EN 12067-1) and Zero pressure

regulators (EN 12078) included in this European Standard;
c) requirements and tests for breather holes changed;
d) requirements and tests for housings changed;
e) general requirement for leak tightness changed;
f) requirement for rated flow rate changed;
g) tests for class A and B regulators changed;
h) declarations of nominal diameters and maximum inlet pressure extended.

EN 88 Pressure regulators and associated safety devices for gas appliances consists of the following parts:

 EN 88-1, Pressure regulators and associated safety devices for gas appliances — Part 1: Pressure

regulators for inlet pressures up to and including 50 kPa;

 EN 88-2, Pressure regulators and associated safety devices for gas appliances — Part 2: Pressure

regulators for inlet pressures above 500 mbar up to and including 5 bar.
---------------------- Page: 7 ----------------------
SIST EN 88-1:2011
EN 88-1:2011 (E)

Performance Level (PL) or Safety Integrity Level (SIL) classifications according to EN ISO 13849-1 or

EN 61508-1 cannot automatically be claimed based upon compliance with this European Standard. Pressure

regulators with PL or SIL classification do not automatically meet the requirements of this European Standard.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and the United Kingdom.
---------------------- Page: 8 ----------------------
SIST EN 88-1:2011
EN 88-1:2011 (E)
1 Scope

This European Standard specifies the safety, construction and performance requirements for pressure

regulators and pneumatic gas/air ratio pressure regulators (zero pressure regulators are included as a special

type of pneumatic gas/air ratio pressure regulator), intended for use with gas burners, gas appliances and

similar use, hereafter referred to as ‘pressure regulators’.
This European Standard is applicable to

 pressure regulators with declared maximum inlet pressures up to and including 50 kPa (500 mbar) of

nominal connection sizes up to and including DN 250 for use with one or more fuel gases in accordance

with EN 437,
 pressure regulators which use auxiliary energy,

 pneumatic gas/air ratio pressure regulators, which function by controlling a gas outlet pressure in

response to an air signal pressure, air signal differential pressure, and/or to a furnace pressure signal

(zero pressure regulators are included as a special type of pneumatic gas/air ratio pressure regulator),

 gas/air ratio pressure regulators which change an air outlet pressure in response to a gas signal pressure

or a gas signal differential pressure.
This European Standard does not cover

 pressure regulators connected directly to gas distribution network or to a container that maintains a

standard distribution pressure,

 pressure regulators intended for gas appliances to be installed in the open air and exposed to the

environment,
 mechanically linked gas/air ratio controls,
 electronic gas/air ratio controls (EN 12067-2).
2 Normative references

The following referenced documents are indispensable for the application 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 , Automatic shut-off valves for gas burners and gas appliances

EN 13611:2007, Safety and control devices for gas burners and gas burning appliances — General

requirements

EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)

EN 60730-1:2000, Automatic electrical controls for household and similar use — Part 1: General requirements

(IEC 60730-1:1999, modified)

EN 175301-803, Detail Specification: Rectangular connectors — Flat contacts, 0,8 mm thickness, locking

screw not detachable
To be published.
...

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