EN ISO 23553-1:2022

SLOVENSKI STANDARD
01-april-2022
Nadomešča:
SIST EN ISO 23553-1:2014
Varnostne in nadzorne naprave za oljne gorilnike in aparate na olje - Posebne
zahteve - 1. del: Avtomatski in polavtomatski ventili (ISO 23553-1:2022)
Safety and control devices for oil burners and oil-burning appliances - Particular
requirements - Part 1: Automatic and semi-automatic valves (ISO 23553-1:2022)
Sicherheits-, Regel- und Steuereinrichtungen für Ölbrenner und Öl verbrennende Geräte
- Spezielle Anforderungen - Teil 1: Automatische und halbautomatische Ventile (ISO
23553-1:2022)
Dispositifs de commande et de sécurité pour brûleurs à combustible liquide et pour
appareils à combustible liquide - Exigences particulières - Partie 1: Robinets
automatiques et semi-automatiques (ISO 23553-1:2022)
Ta slovenski standard je istoveten z: EN ISO 23553-1:2022
ICS:
23.060.01 Ventili na splošno Valves in general
27.060.10 Gorilniki na tekoče in trdo Liquid and solid fuel burners
gorivo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 23553-1
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2022
EUROPÄISCHE NORM
ICS 27.060.10 Supersedes EN ISO 23553-1:2014
English Version
Safety and control devices for oil burners and oil-burning
appliances - Particular requirements - Part 1: Automatic
and semi-automatic valves (ISO 23553-1:2022)
Dispositifs de commande et de sécurité pour brûleurs à Sicherheits-, Regel- und Steuereinrichtungen für
combustible liquide et pour appareils à combustible Ölbrenner und Öl verbrennende Geräte - Spezielle
liquide - Exigences particulières - Partie 1: Robinets Anforderungen - Teil 1: Automatische und
automatiques et semi-automatiques (ISO 23553- halbautomatische Ventile (ISO 23553-1:2022)
1:2022)
This European Standard was approved by CEN on 17 January 2022.

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, Turkey 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 23553-1:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 23553-1:2022) has been prepared by Technical Committee ISO/TC 161
"Controls and protective devices for gas and/or oil" in collaboration with Technical Committee CEN/TC
47 “Atomizing oil burners and their components - Function - Safety - Testing” the secretariat of which is
held by DIN.
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 August 2022, and conflicting national standards shall
be withdrawn at the latest by August 2022.
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.
This document supersedes EN ISO 23553-1:2014.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 23553-1:2022 has been approved by CEN as EN ISO 23553-1:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 23553-1
Third edition
2022-02
Safety and control devices for oil
burners and oil-burning appliances —
Particular requirements —
Part 1:
Automatic and semi-automatic valves
Dispositifs de commande et de sécurité pour brûleurs à combustible
liquide et pour appareils à combustible liquide — Exigences
particulières —
Partie 1: Robinets automatiques et semi-automatiques
Reference number
ISO 23553-1:2022(E)
ISO 23553-1:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 23553-1:2022(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 6
4.1 Classes of control . 6
4.2 Groups of control . 6
4.3 Types of DC supplied controls . 6
5 Test conditions .6
6 Construction . 7
6.1 General . 7
6.2 Construction requirements. 7
6.2.1 Appearance . 7
6.2.2 Holes . 7
6.2.3 Flexible diaphragm, bellows or similar construction . 7
6.2.4 Screwed fastenings . 7
6.2.5 Jointing . 8
6.2.6 Moving parts . 8
6.2.7 Sealing caps . 8
6.2.8 Dismantling and reassembling for servicing and/or adjustment . 8
6.2.9 Auxiliary channels . 9
6.2.10 Resistance against pressure . 9
6.2.11 Connections . 9
6.3 Materials . 9
6.3.1 General material requirements . 9
6.3.2 Springs . 10
6.3.3 Resistance to corrosion and surface protection . 10
6.3.4 Impregnation . 10
6.3.5 Seals for glands for moving parts. 10
6.3.6 Non-metallic sealing materials . 10
6.3.7 Actuators . 10
6.3.8 Enclosures . 11
6.3.9 Extra low voltage terminals . 11
6.4 Oil connections . 11
6.4.1 Making connections. 11
6.4.2 Connection sizes . 11
6.4.3 Threads . 11
6.4.4 Union Joints .12
6.4.5 Flanges . 13
6.4.6 Compression fittings . 13
6.4.7 Nipples for pressure tests . 13
6.4.8 Welded connections . 13
6.5 Strainers . 13
6.6 Indicator . 14
6.6.1 Position indicator . . 14
6.6.2 Closed position indicator switch . 14
7 Performance .14
7.1 General . 14
7.2 Leak-tightness . 15
7.2.1 Criteria . 15
7.2.2 Test for leak-tightness . 15
iii
ISO 23553-1:2022(E)
7.3 Torsion and bending . 16
7.3.1 General . 16
7.3.2 Torsion . 16
7.3.3 Bending moment . . 16
7.3.4 Torsion and bending tests . 16
7.3.5 Hydrostatic strength test . 20
7.4 Rated oil flow . 20
7.4.1 Criteria . 20
7.4.2 Test of flow capacity .20
7.5 Durability . 20
7.5.1 Elastomers in contact with oil . 20
7.5.2 Resistance to oil . 20
7.5.3 Marking resistance . 21
7.5.4 Resistance to scratching . 21
7.5.5 Resistance to humidity . 22
7.6 Functional requirements . .23
7.6.1 General .23
7.6.2 Closing function . 23
7.6.3 Valve closing time .23
7.6.4 Valve opening time . 24
7.7 Endurance . 24
7.7.1 General . 24
7.7.2 Test of endurance . 24
7.7.3 Test of endurance of electrically operated valves . 24
8 EMC/Electrical requirements .25
8.1 Protection against environmental influences . 25
8.1.1 Assessment Criterion I . 25
8.1.2 Assessment Criterion II . 25
8.2 Surge immunity test . 25
8.3 Electrical fast transient/burst .26
8.4 Immunity to conducted disturbances . 26
8.5 Immunity to radiated fields . 27
8.6 Electrostatic discharge immunity test .28
8.7 Test for immunity to power-frequency magnetic field .28
8.8 Electrical equipment .28
8.8.1 General .28
8.8.2 Heating of oil valves.28
8.8.3 Heating for valves .30
8.8.4 Burnout test for valves . . .30
8.8.5 Blocking of valve mechanism .30
8.9 Electrical components . 31
8.9.1 Degree of protection . 31
8.9.2 Switches . 31
8.9.3 Plug connector . 31
8.9.4 Power-saving circuit . 32
8.10 Ring wave . 32
9 Marking, installation and operating instructions .32
9.1 Marking . 32
9.2 Installation and operating instructions . 33
9.3 Warning notice . 33
Annex A (normative) Test for immunity to power-frequency magnetic fields.35
Annex B (normative) Specific regional requirements in European countries .36
Annex C (normative) Specific regional requirements in Canada and USA .38
Annex D (normative) Specific regional requirements in Japan .41
Bibliography .43
iv
ISO 23553-1:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 161, Controls and protective devices for
gas and/or oil, in collaboration with the European Committee for Standardization (CEN) Technical
Committee CEN/TC 47, Atomizing oil burners and their components — Function — Safety — Testing, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 23553-1:2014), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— relevant references have been updated to ISO 23550 wherever possible;
— relevant references have been updated to IEC 60730-1:2013, modified + COR1:2014;
— references have been dated, where applicable.
A list of all parts in the ISO 23553 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
v
ISO 23553-1:2022(E)
Introduction
This document is designed to be used as a stand-alone standard and no longer in combination with
ISO 23550.
Whereas the previous edition referred to specific sections in ISO 23550, these have now been included
directly in this document. Compared to the previous edition (ISO 23553-1:2014) no technical changes
have been done and no further technical requirements have been added. For the same reason, reference
to IEC 60730-1 is maintained. It will be updated in the next edition.
vi
INTERNATIONAL STANDARD ISO 23553-1:2022(E)
Safety and control devices for oil burners and oil-burning
appliances — Particular requirements —
Part 1:
Automatic and semi-automatic valves
1 Scope
This document specifies safety, constructional and performance requirements and testing of automatic
and semi-automatic valves for oil.
It applies to automatic and semi-automatic valves which are:
— normally closed;
— used in combustion plants to interrupt the oil flow with or without delay on closing;
— for use with oil types (e.g. middle distillate fuel oil, crude oil, heavy fuel oil or kerosene) without
gasoline;
NOTE 1 For other oil types (e.g. oil emulsions), additional test methods can be agreed between the
manufacturer and the test authority.
NOTE 2 Oil types from petroleum refining processes are classified ISO-F-D in ISO 8216-99 and form part
of a device having other function(s), such as oil pumps. In this case, the test methods apply to those parts
or components of the device forming the automatic and semi-automatic valves, i.e. those parts which are
necessary for the closing function.
— for use on burners or in appliances using oil;
— directly or indirectly operated, electrically or by mechanical or hydraulic means;
— fitted with or without closed-position indicator switches.
This document covers type testing only.
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.
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 65, Carbon steel tubes suitable for screwing in accordance with ISO 7-1
ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 262, ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 7005-1, Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems
ISO 7005-2, Metallic flanges — Part 2: Cast iron flanges
ISO 23553-1:2022(E)
ISO 10763, Hydraulic fluid power — Plain-end, seamless and welded precision steel tubes — Dimensions
and nominal working pressures
IEC 60529, Degrees of protection provided by enclosures (IP code)
IEC 60534-1, Industrial-process control valves— Part 1: Control valve terminology and general
considerations IEC 60534-2-3
IEC 60534-2-3, Industrial-process control valves — Part 2-3: Flow capacity — Test procedures
IEC 60730-1:2010, Automatic electrical controls for household and similar use — Part 1: General
Requirements
IEC 61000-4-2, Electromagnetic compatibility (EMC) — Part 4-2: Testing and measuring techniques —
Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) — Part 4-3: Testing and measurement techniques —
Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) — Part 4-4: Testing and measurement techniques —
Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) — Part 4-5: Testing and measurement techniques —
Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) — Part 4-6: Testing and measurement techniques —
Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8:2009, Electromagnetic compatibility (EMC) — Part 4-8: Testing and measurement
techniques — Power frequency magnetic field immunity test
IEC 61058-1, Switches for appliances — Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
closure member
movable part of the valve (3.16) which shuts off the oil flow
3.2
control
device which directly or indirectly controls the oil flow and/or provides a safety function within an oil
burner or oil-burning appliance
3.3
external leak-tightness
leak-tightness of an oil-carrying compartment with respect to the atmosphere
ISO 23553-1:2022(E)
3.4
group 1 control
controls (3.2) with connection sizes up to and including DN 25, for use in an appliance where they are
not subjected to bending stresses imposed by installation pipe work or in an installation if used with
rigid adjacent supports
Note 1 to entry: In Canada, Japan and the USA, group 1 controls are not used.
3.5
group 2 control
controls (3.2) for use in any situation, either internal or external to the appliance, typically without
support
Note 1 to entry: Controls (3.2) which meet the requirements of group 2 control also meet the requirements of
group 1 control (3.4).
3.6
internal leak-tightness
leak-tightness of the closure member (3.1) (in the closed position) sealing an oil-carrying compartment
with respect to another compartment or to the outlet of the control (3.2)
3.7
pressure difference
difference between the pressure at the inlet of the control and outlet of the control
3.8
maximum operation pressure
highest inlet pressure declared by the manufacturer at which the control (3.2) may be operated
3.9
minimum operation pressure
lowest inlet pressure declared by the manufacturer at which the control (3.2) may be operated
3.10
flow rate
volume flowing through the control (3.2) divided by time
3.11
maximum ambient temperature
highest temperature of the surrounding air declared by the manufacturer at which the control (3.2)
may be operated
3.12
minimum ambient temperature
lowest temperature of the surrounding air declared by the manufacturer at which the control (3.2) may
be operated
3.13
mounting position
position declared by the manufacturer for mounting the control (3.2)
Note 1 to entry: Mounting positions are, for example, as follows:
— upright: single position on a horizontal axis with respect to the inlet connection, as specified by the
manufacturer;
— horizontal: any position on a horizontal axis with respect to the inlet connection;
— vertical: any position on a vertical axis with respect to the inlet connection;
— limited horizontal: any position from upright to 90° (1,57 rad) from upright on a horizontal axis with respect
to the inlet connection;
ISO 23553-1:2022(E)
— multi poise: any position on a horizontal, vertical or intermediate axis with respect to the inlet connection.
3.14
diameter nominal
DN
nominal size
alphanumeric designation of size for components of a pipework system, which is used for reference
purposes, comprising the letters DN followed by a dimensionless whole number which is indirectly
related to the physical size, in millimetres, of the bore or outside diameter of the end connections
Note 1 to entry: The number following the letters DN does not represent a measurable value and should not be
used for calculation purposes except where specified in the relevant standard.
Note 2 to entry: In standards which use the DN designation system, any relationship between DN and component
dimensions should be given, e.g. DN/OD or DN/ID.
[SOURCE: ISO 6708:1995, 2.1, modified — The two sentences have been merged into one.]
3.15
nominal pressure
PN
numerical designation relating to pressure that is a convenient round number for reference purposes
[SOURCE: ISO 7268:1983, Clause 2]
3.16
valve
device consisting essentially of a valve body, closure member (3.1), and actuator (3.24) that controls the
oil flow
Note 1 to entry: The actuator (3.24) can be actuated by electrical or mechanical means.
Note 2 to entry: The actuation can be done by oil pressure, electrical, hydraulic or pneumatic energy.
3.17
normally closed valve
nc
valve (3.16) which is in closed position when no actuating energy is applied
3.18
automatic valve
normally closed valve (3.17) that closes on removal of the actuating energy
3.19
semi-automatic valve
normally closed valve (3.17) that is actuated manually and returns to the closed position upon removal
of the actuating energy
3.20
safety shut-off valve
normally closed valve (3.17), automatic or semi-automatic, that prevents the oil flow completely when
de-energized
3.21
opening time
time from the beginning until the end of the change in position of the closure member from the closed
to the open position
Note 1 to entry: See Figure 1.
ISO 23553-1:2022(E)
Key
c
1 delay time Signal for opening.
d
2 opening time Start of period of change in position.
a e
Open. End of period of change in position.
b
Closed.
Figure 1 — Response time of closure member (3.1) during opening
3.22
closing time
time from the beginning until the end of the change in position of the closure member (3.1) from the
open to the closed position
Note 1 to entry: See Figure 2.
Key
c
1 delay time Signal for closing.
d
2 closing time Start of period of change in position.
a e
Open. End of period of change in position.
b
Closed.
Figure 2 — Response time of closure member (3.1) during closing
3.23
closing force
force which effects the closing of the closure member (3.1) in the case of failure or interruption of the
externally applied actuating energy, such as spring force, independent of any force provided by oil
pressure
ISO 23553-1:2022(E)
3.24
actuator
part effecting the movement of the closure member (3.1)
Note 1 to entry: Media can also effect the movement.
3.25
auxiliary medium
medium used for actuating the moving parts of the system (pneumatic or hydraulic)
3.26
auxiliary medium pressure
pressure exerted by the auxiliary medium (3.25) during actuation of the moving parts
3.27
control valve
valve (3.16) which controls the hydraulic or pneumatic means supplied to the actuating mechanism
[SOURCE: ISO 23551-1:2012, 3.115]
4 Classification
4.1 Classes of control
Automatic and semi-automatic oil control valves are not classified.
4.2 Groups of control
Controls for use in any situation, either internal or external to the appliance and regardless of the kind
of support, the listed torque, and bending moment in Table 5, shall be fulfilled (see 7.3.4.4).
4.3 Types of DC supplied controls
DC supplied controls are classified in one of the three following types:
— type A: stand-alone battery systems;
— type B: battery systems for non-stationary applications (i.e. applications which are changing
location or in motion);
— type C: systems which are intended to be connected to DC supply networks.
5 Test conditions
Tests shall be carried out with oil at (20 ± 5) °C and at an ambient temperature of (20 ± 5) °C, unless
otherwise specified.
Controls which can be converted for use with another oil by exchanging components are additionally
tested with the conversion components.
Tests shall be carried out in the mounting position declared by the manufacturer. If there are several
mounting positions, tests shall be carried out in the least favourable position.
NOTE 1 These tests are specified in the specific control standard.
NOTE 2 Specific regional requirements are given in D.2.1.
ISO 23553-1:2022(E)
6 Construction
6.1 General
Controls shall be designed, manufactured and assembled so that the various functions operate correctly
when installed and used according to the manufacturer's instructions.
All pressurized parts of a control shall withstand the mechanical and thermal stresses to which they
are subjected without any deformation affecting safety.
In general, conformity with the requirements given in this document is verified by the test methods
given herein or in the specific control standard, or by using the construction materials specified by the
requirements. Alternative materials may be used if they provide performance at least equivalent to the
materials specified.
6.2 Construction requirements
6.2.1 Appearance
Controls shall be free from sharp edges and corners which can cause damage, injury or incorrect
operation. All parts shall be clean internally and externally.
6.2.2 Holes
Holes for screws, pins, etc., which are used for the assembly of parts or used to install the valve shall not
penetrate oil passageways.
Holes necessary in manufacture which connect oil passageways to the atmosphere, but which do
not affect the function of the valve, shall be permanently sealed by metallic means. Suitable jointing
compounds may additionally be used.
6.2.3 Flexible diaphragm, bellows or similar construction
Valves which utilize a flexible diaphragm, bellows, or similar construction as the only oil seal against
atmospheric pressure, shall have:
— the atmospheric side enclosed in a casing to limit external leakage in the event of diaphragm or
bellows rupture; or
— provisions for connection of pipe or tubing to carry away the occurring leakage.
Compliance is checked by rupturing the diaphragm or bellows and measuring the leakage according to
7.2.1.1. During this test, the connection ports for pipes or tubing shall be blocked.
Leakage through an unthread
...