Safety and control devices for burners and appliances burning gaseous and/or liquid fuels - General requirements

This European Standard specifies the general safety, design, construction, and performance requirements and testing of safety, control or regulating devices (hereafter referred to as controls) for burners and appliances burning one or more gaseous fuels or liquid fuels. This European Standard is applicable to controls with declared maximum inlet pressure up to and including 500 kPa and of nominal connection sizes up to and including DN 250.
This European standard specifies general product requirements for the following controls:
— automatic shut-off valves;
— automatic burner control systems;
— flame supervision devices;
— gas/air ratio controls;
— pressure regulators;
— manual taps;
— mechanical thermostats;
— multifunctional controls;
— pressure sensing devices;
— valve proving systems;
— automatic vent valves.
This European standard applies for control functions that are not covered by a specific control standard for burners and appliances burning one or more gaseous fuels or liquid fuels.
This European Standard applies also for safety accessories and pressure accessories with a product of the maximum allowable pressure PS and the volume V of less than 600 000 kPa · dm3 (6 000 bar · L) or with a product of PS and DN of less than 300 000 kPa (3 000 bar).
This European Standard applies for AC and DC supplied controls (for controls supplied by stand-alone battery system, battery systems for mobile applications or systems which are intended to be connected to DC supply networks controls see Annex I).
This European Standard is applicable to reset functions used for reset from lockout, e.g. due to ignition failure or temperature cut-out in burners and appliances (see Annex M).
This European Standard establishes methodologies for the determination of a Safety Integrity Level (SIL) and the determination of a Performance Level (PL) (see Annex J, Annex K and Annex L).
This European Standard gives guidelines for environmental aspects (see Annex N).
This European Standard does not apply to mechanical controls for use with liquid fuels.
The protection against environmental impact in open air (i.e. capable of withstanding UV radiation, wind, rain, snow, dirt deposits, condensation, ice and hoar frost (see IEV 441-11-05:2005), earthquake and external fire) is not covered by this standard.
This European Standard should be used in conjunction with the specific control standard (see Bibliography).

Sicherheits- und Regeleinrichtungen für Brenner und Brennstoffgeräte für gasförmige und/oder flüssige Brennstoffe - Allgemeine Anforderungen

Équipements auxiliaires pour brûleurs et appareils utilisant des combustibles gazeux ou liquides - Exigences générales

Varnostne in nadzorne naprave za gorilnike in aparate na plin in/ali tekoča goriva - Splošne zahteve - Dopolnilo A1

General Information

Status
Not Published
Public Enquiry End Date
02-Nov-2021
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
11-Aug-2021
Due Date
29-Dec-2021

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SLOVENSKI STANDARD
SIST EN 13611:2019/oprA1:2021
01-oktober-2021

Varnostne in nadzorne naprave za gorilnike in aparate na plin in/ali tekoča goriva -

Splošne zahteve - Dopolnilo A1

Safety and control devices for burners and appliances burning gaseous and/or liquid

fuels - General requirements

Sicherheits- und Regeleinrichtungen für Brenner und Brennstoffgeräte für gasförmige

und/oder flüssige Brennstoffe - Allgemeine Anforderungen

Équipements auxiliaires pour brûleurs et appareils utilisant des combustibles gazeux ou

liquides - Exigences générales
Ta slovenski standard je istoveten z: EN 13611:2019/prA1
ICS:
23.060.40 Tlačni regulatorji Pressure regulators
27.060.20 Plinski gorilniki Gas fuel burners
SIST EN 13611:2019/oprA1:2021 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 13611:2019/oprA1:2021
---------------------- Page: 2 ----------------------
SIST EN 13611:2019/oprA1:2021
DRAFT
EUROPEAN STANDARD
EN 13611:2019
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
September 2021
ICS 23.060.40
English Version
Safety and control devices for burners and appliances
burning gaseous and/or liquid fuels - General
requirements

Équipements auxiliaires pour brûleurs et appareils Sicherheits- und Regeleinrichtungen für Brenner und

utilisant des combustibles gazeux ou liquides - Brennstoffgeräte für gasförmige und/oder flüssige

Exigences générales Brennstoffe - Allgemeine Anforderungen

This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 58.

This draft amendment A1, if approved, will modify the European Standard EN 13611:2019. If this draft becomes an amendment,

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of

this amendment into the relevant national standard without any alteration.

This draft amendment 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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13611:2019/prA1:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Modification to the European foreword ................................................................................................. 4

2 Modification to 1, Scope ................................................................................................................................ 4

3 Modification to 2, Normative references ................................................................................................ 4

4 Modification to 3, Terms and definitions ............................................................................................... 6

5 Modification to 6.1, General ........................................................................................................................ 7

6 Modification to 6.3.4, Springs ..................................................................................................................... 7

7 Modification to Table A.1 ............................................................................................................................. 7

8 Modification to Annex F ................................................................................................................................ 8

9 Modification to Annex G ............................................................................................................................. 13

10 Modification to Annex H ............................................................................................................................ 26

11 Modification to Annex ZA .......................................................................................................................... 31

12 Modification to Annex ZB .......................................................................................................................... 31

13 Modification to Annex ZC........................................................................................................................... 33

14 Modification to Bibliography ................................................................................................................... 34

---------------------- Page: 4 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
European foreword

This document (EN 13611:2019/prA1:2021) 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 CEN Enquiry.
---------------------- Page: 5 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
1 Modifications to the European foreword
Replace the items d) and e) with: "
d) Annex ZA has been deleted;
e) Annex ZB has been updated;".
Add item g) and, subsequently, the following paragraph: "

g) Annex ZC has been updated with respect to Directive 2014/68/EU relating to safety accessories and

pressure accessories used in pressure equipment.

This document has been prepared under a Commission’s standardization request [TBD], and supports

essential requirements of EU Directives.".
2 Modification to Clause 1, Scope
Replace the 4 paragraph with: "

This document applies to pressure accessories which are subject to a maximum inlet pressure > 50 kPa

and to safety accessories. Specific additional requirements are given in Annex F.

This document does not cover aspects of manufacturing processes, e.g. proof tests of pressure

accessories.".
3 Modification to Clause 2, Normative references
Replace the Normative references with the following: "
EN 334:2019, Gas pressure regulators for inlet pressures up to 100 bar

EN 377:1993, Lubricants for applications in appliances and associated controls using combustible gases

except those designed for use in industrial processes

EN 549:1994, Rubber materials for seals and diaphragms for gas appliances and gas equipment

st nd rd

EN 751-1:1996, Sealing materials for metallic threaded joints in contact with 1 , 2 and 3 family gases

and hot water — Part 1: Anaerobic jointing compounds
st nd rd

EN 751-2:1996, Sealing materials for metallic threaded joints in contact with 1 , 2 and 3 family gases

and hot water — Part 2: Non-hardening jointing compounds
st nd rd

EN 751-3:1996, Sealing materials for metallic threaded joints in contact with 1 , 2 and 3 family gases

and hot water — Part 3: Unsintered PTFE tapes

EN 1759-1:2004, Flanges and their joint — Circular flanges for pipes, valves, fittings and accessories, Class

designated — Part 1: Steel flanges, NPS 1/2 to 24

EN 1759-3:2003, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, Class

designated — Part 3: Copper alloy flanges

EN 1759-4:2003, Flanges and their joint — Circular flanges for pipes, valves, fittings and accessories, class

designated — Part 4: Aluminium alloy flanges
1) As impacted by EN 377:1993+A1:1996.
---------------------- Page: 6 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)

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 12186:2014, Gas infrastructure — Gas pressure regulating stations for transmission and distribution —

Functional requirements

EN 12279:2000, Gas supply systems — Gas pressure regulating installations on service lines — Functional

requirements
EN 12516-2:2014, Valves — Shell design strength — Part 2: Experimental method
EN 12516-4:2014, Valves — Shell design strength — Part 4: Experimental method

EN 13555:2014, Flanges and their joints — Gasket parameters and test procedures relevant to the design

rules for gasketed circular flange connections

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

EN 13906-3:2013, Cylindrical helical springs made from round wire and bar — Calculation and design —

Part 2: Torsion springs

EN 50159:2010, Railway applications — Communication, signalling and processing systems — Safety-

related communication in transmission systems

EN 60068-2-6:2008, Environmental testing — Part 2-6: Tests — Test Fc: Vibration (sinusoidal)(IEC 60068-

2-6:2007)

EN 60384-14:2013, Fixed capacitors for use in electronic equipment — Part 14: Sectional specification —

Fixed capacitors for electromagnetic interference suppression and connection to the supply mains (IEC

60384-14:2010)

EN 60384-16:2005, Fixed capacitors for use in electronic equipment — Part 16: Sectional specification:

Fixed metallized polypropylene film dielectric d.c. capacitors (IEC 60384-16:2005)

EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)

EN 60730-1:2016, Automatic electrical controls — Part 1: General requirements (IEC 60730-1:2013)

EN 60747-5-2:2001, Discrete semiconductor devices and integrated circuits — Part 5-2: Optoelectronic

devices — Essential ratings and characteristics (IEC 60747-5-2:1997)

EN 60947-5-1:2004, Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and

switching elements — Electromechanical control circuit devices (IEC 60947-5-1:2003)

EN 61000-4-29:2000, Electromagnetic compatibility (EMC) — Part 4-29: Testing and measurement

techniques — Voltage dips, short interruptions and voltage variations on d.c. input power port immunity

tests (IEC 61000-4-29:2000)

EN 61508-2:2010, Functional safety of electrical/electronic/programmable electronic safety-related

systems — Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems

(IEC 61508-2:2010)

EN 61508-3:2010, Functional safety of electrical/electronic/programmable electronic safety-related

systems — Part 3: Software requirements (IEC 61508-3:2010)

EN 61508-4:2010, Functional safety of electrical/electronic/programmable electronic safety-related

systems — Part 4: Definitions and abbreviations (IEC 61508-4:2010)
---------------------- Page: 7 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)

EN 61508-6:2010, Functional safety of electrical/electronic/programmable electronic safety-related

systems — Part 6: Guidelines on the application of IEC 61508-2 and IEC 61508-3 (IEC 61508-6:2010)

EN 61508-7:2010, Functional safety of electrical/electronic/programmable electronic safety-related

systems — Part 7: Overview of techniques and measures (IEC 61508-3:2010)

EN 61558-2-6:2009, Safety of transformers, reactors, power supply units and similar products for supply

voltages up to 1 100 V — Part 2-6: Particular requirements and tests for safety isolating transformers and

power supply units incorporating safety isolating transformers (IEC 61558-2-6:2009)

EN 61558-2-16:2009, Safety of transformers, reactors, power supply units and similar products for supply

voltages up to 1 100 V — Part 2-16: Particular requirements and tests for switch mode power supply units

and transformers for switch mode power supply units (IEC 61558-2-16:2009)

EN 61643-11:2012, Low-voltage surge protective devices — Part 11: Surge protective devices connected to

low-voltage power systems — Requirements and test methods (IEC 61643-11:2011, modified)

EN 61810-1:2015, Electromechanical elementary relays — Part 1: General and safety requirements (IEC

61810-1:2015)

EN 62061:2005, Safety of machinery — Functional safety of safety-related electrical, electronic and

programmable electronic control systems (IEC 62061:2005)

EN ISO 228-1:2003, Pipe threads where pressure-tight joints are not made on the threads — Part 1:

Dimensions, tolerances and designation (ISO 228-1:2000)

EN ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General

principles for design (ISO 13849-1:2015)

ISO 37:2017, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties

ISO 262:1998, ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts

ISO 301:2006, Zinc alloy ingots intended for castings

ISO 815-1:2014, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 1: At

ambient or elevated temperatures

ISO 1817:2015, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids

ISO 7637-2:2011, Road vehicles — Electrical disturbances from conduction and coupling — Part 2:

Electrical transient conduction along supply lines only

ISO 7637-3:2016, Road vehicles — Electrical disturbances from conduction and coupling — Part 3:

Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines

ISO 23529:2016, Rubber — General procedures for preparing and conditioning test pieces for physical test

methods
4 Modifications to Clause 3, Terms and definitions
Add to 3.1 the following Note 1 to entry: "

Note 1 to entry: Within this document the term 'control' is equivalent to the term 'fitting' of Regulation (EU)

2016/426.".
---------------------- Page: 8 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
Replace 3.10 with the following: "
3.10
maximum inlet pressure (PS)

highest inlet pressure as stated in the instructions at which the control can be operated

Note 1 to entry: The Definition of “maximum inlet pressure (PS)” in this document is equivalent to the definition

of “maximum allowable pressure” in Directive Directive 2014/68/EU.".
Add after 3.46 the following subclauses: "
3.47
safety accesory

safety related measurement, control and regulation devices (SRMCR) used on fired pressure equipment

Note 1 to entry: Examples for safety accessories: automatic shut-off valves, automatic burner control systems,

pressure sensing devices.
Note 2 to entry: Safety accessories can include pressure bearing parts.
3.48
pressure accessory

controls used on fired pressure equipment with an operational function and having pressure-bearing

housings with a risk of pressure according to categories II, III or IV of Directive 2014/68/EU.".

5 Modification to 6.1, General
nd rd
Replace the 2 and 3 paragraph with the following: "

Mechanical controls shall be designed such that access to internal parts requires the use of tools. For

other controls access to internal parts shall only be possible by the use of tools. All pressure bearing parts

of a control shall withstand the mechanical and thermal stresses to which it is subjected without any

deformation affecting safety.

Safety accessories and pressure accessories with a product of the maximum inlet pressure PS and the

volume V of less than 600 000 kPa · dm (6 000 bar · L) or with a product of PS and DN of less than

300 000 kPa (3 000 bar) shall conform to the requirements of Annex F.".
6 Modification to 6.3.4, Springs
Replace the 2nd paragraph with the following: "

Springs providing the sealing and/or closing force for any closure member of the control shall be made

of corrosion-resistant materials and shall be designed for static and dynamic loading according to

EN 13906-1:2013 or EN 13906-2:2013 or EN 13906-3:2013.".
7 Modification to Table A.1
Replace entry "PS" with
PS Maximum inlet pressure
---------------------- Page: 9 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
8 Modification to Annex F
Replace Annex F with the following: "
F.1 Introduction

This annex makes use of the corresponding clauses in this standard by adapting them and stating

“addition”, “modification” or “replacement”. Only the affected subclauses are mentioned in this annex,

hence the following numbering is non-consecutive.

This Annex does not apply to pressure accessories of category I which are covered by Regulation (EU)

2016/426 on appliances burning gaseous fuels.
F.6.2 Mechanical parts of the control
Shall be according to 6.2 with the following addition:
F.6.2.11 Design of pressure bearing parts
F.6.2.11.1 Requirements

Parts of pressure accessories and safety accessories that are subjected to the maximum inlet pressure

(PS) under normal operating conditions, or could be subjected to the maximum inlet pressure (PS) in the

event of a failure, shall resist a pressure equal to the maximum inlet pressure (PS) multiplied by the safety

factor f.

Depending on the material, the safety factors f shall be determined according to Table F.1:

---------------------- Page: 10 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
Table F.1 — Minimum value of the safety factor f
Group of materials Minimum value of the safety factor f
For parts of the body stressed by
forces from torque and bending
moments (pipelines) only
Rolled and forged steel 1,70 2,13
Cast steel 2,00 2,50
Spheroidal graphite cast iron 2,50 3,13
and malleable cast iron
Copper-zinc wrought alloys and 2,00 2,50
aluminium alloys
Copper-tin cast alloys and 2,50 3,13
copper-zinc cast alloys
Aluminium cast alloys 2,50 3,13
A 4 %
min
Aluminium cast alloys 3,20 4,00
A 1,5 %
min

For other materials than mentioned in Table F.1, a safety factor f = 4 shall be considered, if not otherwise

defined by EN harmonized design standards.
Pressure bearing parts of safety accessories and pressure accessories with

— a product of the maximum inlet pressure PS and the volume V of less than 600 000 kPa · dm

(6 000 bar · L), or
— a product of PS and DN of less than 300 000 kPa (3 000 bar)

shall be assessed by one of the following methods considering the determined safety factor f:

— experimental design method by performing a pressure strength test as specified in F.6.2.11.2; or

— strength calculation as specified in F.6.2.11.3.

During and after the pressure strength test according to F.6.2.11.2 no fracture of pressure bearing parts

shall be visible with the naked eye.
F.6.2.11.2 Experimental design method

Pressure bearing parts of pressure accessories and pressure accessories, which are designed without

calculation shall be tested by applying a test pressure of f times (according to F.6.2.11.1) the maximum

inlet pressure PS at maximum ambient temperature, as stated in the instructions, to one test sample for

a minimum of 5 min.

The test shall be carried out in such a manner that deformations of the test sample in all directions are

possible.

Forces from fastening systems to the test sample shall be similar to those experienced under normal

installation conditions.
---------------------- Page: 11 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)

After application of the test pressure the sample is cooled to (20 ± 5) °C and visually inspected for

fractures of pressure bearing parts.

NOTE The verification of strength by the finite element method (FEM/FEA) can be an alternative method to

the experimental design method reflected by this pressure strength test. Guideline ASME V&V 10-2006 can be a

reference for verification and validation of static computational models, calculated by FEM/FEA.

F.6.2.11.3 Strength calculation method

The strength calculation for pressure bearing parts of safety accessories and pressure accessories shall

be carried out according to EN 12516-2:2014 and EN 12516-4:2014+A1:2018 considering the

determined safety factor f and shall be documented comprehensibly. The calculation documents shall be

inspected.

NOTE Pressure bearing parts are typically designed by using simulation programmes for the calculation.

F.6.3 Materials
Shall be according to 6.3 with the following addition:
F.6.3.8 Materials for pressure bearing parts

Materials for pressure bearing parts shall comply with national and/or international established material

standards for pressure applications and with the restrictions given in Table F.2.

All selected materials complying with Table F.2 which are neither complying with EN harmonized

material standards nor subect of an european approval for pressure equipment materials (EAM), shall be

submitted to a Particular Material Appraisal procedure.
Table F.2 — Materials
Restrictions
Material
Control
Properties
a PS e
Group (PS ∙ DN )
Amin max DNmax
max
% bar bar ∙ mm mm
Pressure containing parts and inner metallic partition walls
16 100 – –
Rolled and forged steel
15 100 – –
Cast steel
7 20 1500 1000
Spheroidal graphite cast iron
15 50 5000 300
Malleable cast iron 6 20 1000 100
Copper-zinc wrought alloys 15 100 – 25
5 20 1000 100
Copper-tin and copper-zinc cast
alloys
15 100 – 25
4 20 – 50
Aluminium wrought alloys 50 – 50
100 – 25
---------------------- Page: 12 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
Restrictions
Material
Control
Properties
a PS e
Group (PS ∙ DN )
Amin max DNmax
max
% bar bar ∙ mm mm
1,5 10 250 150
Aluminium cast alloys
4 20 1600 1000
Integral process and sensing lines
Copper – 25 – –
Steel – 100 – –
Connectors
Steel 8 – – –
Fasteners
9 50 – –
Steel for bolts, screws, studs
12 100 – –

NOTE For castings the specified mechanical characteristics are those measured on machined test piece

prepared from separately cast test samples in accordance with the relevant document for the selected materials.

A = percentage elongation after fracture (according to the applicable document relevant to the chosen

material).

The body inlet nominal size has to be considered; for the bodies of pilots or fixtures this term shall refer to

their inlet connections.

The bending rupture energy measured in accordance with EN ISO 148-1:2016 shall be not less than 27 J as

average of three test pieces with minimum individual of 20 J at minimum operating temperature. For minimum

operating temperature of −20 °C, bending rupture energy at −46 °C of minimum 14 J is acceptable instead of a

bending rupture energy of 27 J at −20°C

The bending rupture energy measured in accordance with EN ISO 148-1:2016 shall be not less than 12 J as an

average of three test pieces and no less than 9 J as a minimum individual value at a temperature of –20 °C for

PS > 25 bar when used in regulator class 2.

DN max refers to both inlet and outlet connections including technical solutions with enlarged outlet.

(See EN 334:2019, Table 5)

Subject to a particular material appraisal, materials used in similar applications under similar operating

conditions, which have been recognized as being safe to use are also regarded as suitable. The safety of

controls using such materials shall also be verified in combination with the pressure strength test

according to F.7.9.2.

Examples of suitable materials for pressure bearing parts are provided in Annex G (informative) and

Annex H (informative).

NOTE An official list of European approved materials (EAM) and harmonized standards are published by the

European Commission.
F.6.4.5 Flanges
---------------------- Page: 13 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
Shall be according to 6.4.5 with the following addition:
The ratings of flanges shall not be less than the maximum inlet pressure PS.
F.10 Marking, instructions
F.10.1 Marking
Shall be according to 10.1 with the following addition:
— maximum inlet (allowable) pressure in kPa;
— ambient temperature range.
F.10.2 Instructions
Shall be according to 10.2 with the following addition:

Information to the user shall be given of residual hazards to take appropriate special measures at the

time of installation and/or use.
Additional information:
— maximum inlet (allowable) pressure in kPa;
— ambient temperature range;
— scheme and related functional description;
— technical data for the series of controls and a list of performance data;
— overall dimensional drawing;
— list of spare parts;
— installation, operation and maintenance manual;
— information on safe use of the connections;
— safety requirements concerning commissioning and de-commissioning procedures;
— safety requirements on filling/discharge of gas of/from the control;

— data on the nameplate except serial number, year of manufacturing and specific set range;

— hazards arising from misuse and particular features of the design when appropriate;

— provisions, if any, for transport and handling;
— storage requirements for spare parts;

— a statement on installation according to the provisions of EN 12186:2014 / EN 12279:2000.".

---------------------- Page: 14 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
9 Modification to Annex G
Replace Annex G with the following: "
Materials for pressure bearing parts
G.1 Steel materials for pressure bearing parts
[SOURCE: EN 334:2019, Table G.1, modified]

The steel materials listed in Table G.1 with the restrictions listed in the last 5 columns of the same table, are suitable for the design of pressure

bearing parts of controls complying with this document.
Table G.1 — Steel materials for pressure bearing parts
Materials Restrictions
Operating
b b
Group Type Relevant document PS [PS xDN ] DN
max max max
temperature
-10 °C -20 °C
bar bar x mm mm
to 60 °C to 60 °C
S235JR / 1.0037 with
thickness ≤ 40 mm, S275JR / 1.0044
EN 10025-1:2004
with thickness ≥ 1,5 mm, S355JR/
EN 10025-2:2004,
1.0045 with thickness ≥ 1,5 mm
EN 10025-2:2004/AC:2005
Rolled and
S235J2G3 / 1.0116 and S235J2G4 /
EN 10025-3:2004
100 — —
forged steel
1.0117 both with 1 mm < nominal
EN 10025-4:2004
thickness ≤ 150 mm, S275J2G3 /
EN 10025-5:2004
1.0144 and S275J2G4 / 1.0145 and
EN 10025-6:2004+A1:2009
S355J2G3 / 1.0570 all with
2,5 mm < nominal thickness ≤ 150 mm
---------------------- Page: 15 ----------------------
SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
Materials Restrictions
Operating
b b
Group Type Relevant document PS [PS xDN ] DN
max max max
temperature
-10 °C -20 °C
bar bar x mm mm
to 60 °C to 60 °C
S275JO / 1.0143 and S355JO / 1.0553
both with 1,5 mm < nominal
thickness ≤ 250 mm and
supplementary requirements KV 27 J
av. Of three and 20 J min at –20 °C
P235GH / 1.0345, P265GH / 1.0425,
P295GH/ 1.0481, P355GH / 1.0473 all X
EN 10028-2:2017
with product thickness ≤ 150 mm
P275NH / 1.0487, P355NH / 1.0565
with thickness ≤ 150 mm, P355NL1 /
EN 10028-3:2017
1.0566 with 5 mm ≤ product
thickness ≤ 150 mm
EN 10028-4:2017,
All types X
EN 10028-5:2017
All grades from P355 to P 500 with
EN 10028-6:2017
product thickness ≤ 150 mm
All austenitic steel designation, other
steel designation with Amin ≥ 16 %
EN 10028-7:2016
and impact properties at
temperatures < –20 °C
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SIST EN 13611:2019/oprA1:2021
EN 13611:2019/prA1:2021 (E)
Materials Restrictions
Operating
b b
Group Type Relevant document PS [PS xDN ] DN
max max max
temperature
-10 °C -20 °C
bar bar x mm mm
to 60 °C to 60 °C
25 CrMo4 / 1.7218 and 25CrMoS4 /
1.7213 both with
100 mm < d ≤ 160 mm or
60 mm < t ≤ 100 mm, 36CrNiMo4 /
1.6511 and 39NiCrMo3/1.6510 with
supplementary requirements X
Amin = 16 %. All types shall be
quenched and tempered (+QT) and
EN 10083-1:2006
with supplementary requirements for
cast analysis C ≤ 0,25 % or, when
0,25 % < C ≤ 0,40, Ni ≥ 1 %
36CrNiMo4 / 1.6511 and
Rolled and
39NiCrMo3/1.6510 quenched and
100 — —
forged steel
tempered (+QT) with supplementary X
requirements Amin = 16 % and KV 27 J
av. Of three and 20 J min. at –20 °C
Steel designations quenched and
tempered (+QT) with Amin ≥ 16 % and
EN 10083-2:2006 X
with supplementary requirements for
cast analysis C ≤ 0,25 %.
...

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