EN ISO 23553-1:2009

SLOVENSKI STANDARD
01-december-2009
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SIST EN 264:2000
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]DKWHYHGHO9DUQRVWQR]DSRUQHQDSUDYH]DROMQHJRULOQLNH,62
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Safety and control devices for oil burners and oil-burning appliances - Particular
requirements - Part 1: Shut-off devices for oil burners (ISO 23553-1:2007, including Cor
1:2009)
Sicherheits-, Regel- und Steuereinrichtungen für Ölbrenner und Öl verbrennende Geräte
- Spezielle Anforderungen - Teil 1: Absperreinrichtungen für Ölbrenner (ISO 23553-
1:2007, einschließlich Cor 1:2009)
Dispositifs de commande et de sécurité pour brûleurs à fioul et pour appareils à fioul -
Exigences particulières - Partie 1: Dispositifs de coupure pour brûleurs à fioul (ISO
23553-1:2007, Cor 1:2009 inclus)
Ta slovenski standard je istoveten z: EN ISO 23553-1:2009
ICS:
27.060.10 *RULOQLNLQDWHNRþHLQWUGR Liquid and solid fuel burners
JRULYR
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 23553-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2009
ICS 27.060.10 Supersedes EN 264:1991
English Version
Safety and control devices for oil burners and oil-burning
appliances - Particular requirements - Part 1: Shut-off devices
for oil burners (ISO 23553-1:2007, including Cor 1:2009)
Dispositifs de commande et de sécurité pour brûleurs à Sicherheits-, Regel- und Steuereinrichtungen für Ölbrenner
fioul et pour appareils à fioul - Exigences particulières - und Öl verbrennende Geräte - Spezielle Anforderungen -
Partie 1: Dispositifs de coupure pour brûleurs à fioul (ISO Teil 1: Absperreinrichtungen für Ölbrenner (ISO 23553-
23553-1:2007, Cor 1:2009 inclus) 1:2007, einschließlich Cor 1:2009)
This European Standard was approved by CEN on 28 May 2009.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 23553-1:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
The text of ISO 23553-1:2007, including Cor 1:2009 has been prepared by Technical Committee ISO/TC 161
“Control and safety devices for non-industrial gas-fired appliances and systems - STAND- BY” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 23553-1:2009 by
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 December 2009, and conflicting national standards shall be withdrawn
at the latest by December 2009.
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 264:1991.
According to edition EN 264:1991 the following fundamental changes are given:
a) EN ISO 23553-1 is entirely revised and structured as a part 2 standard referring of the ISO 23550 which
holds the general requirements;
b) all normative references have been updated and reallocated to ISO and IEC standards;
c) new requirements such as for electrical functions, for EMC as well as for materials added;
d) additional tests have been added, e.g. EMC, electrical behaviour, endurance tests;
e) marking, installation and operating instructions modified;
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, 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.
Endorsement notice
The text of ISO 23553-1:2007, including Cor 1:2009 has been approved by CEN as a EN ISO 23553-1:2009
without any modification.
INTERNATIONAL ISO
STANDARD 23553-1
First edition
2007-09-15
Safety and control devices for oil burners
and oil-burning appliances — Particular
requirements —
Part 1:
Shut-off devices for oil burners
Dispositifs de commande et de sécurité pour brûleurs à fioul et pour
appareils à fioul — Exigences particulières —
Partie 1: Dispositifs de coupure pour brûleurs à fioul

Reference number
ISO 23553-1:2007(E)
©
ISO 2007
ISO 23553-1:2007(E)
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©  ISO 2007
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ii © ISO 2007 – All rights reserved

ISO 23553-1:2007(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Classification. 6
4.1 Classes of shut-off device . 6
4.2 Control groups . 6
5 Test conditions . 6
6 Construction. 6
6.1 General. 6
6.2 Construction requirements. 7
6.3 Materials . 8
6.4 Oil connections . 10
6.5 EMC and electrical requirements . 11
7 Performance . 12
7.1 General. 12
7.2 Leak-tightness. 12
7.3 Torsion and bending . 13
7.4 Flow capacity . 14
7.5 Durability . 14
7.6 Functional requirements. 15
7.7 Endurance . 15
8 EMC test. 15
9 Marking, installation and operating instructions . 16
9.1 Marking . 16
9.2 Installation and operating instructions . 17
Annex A (normative) Regional specific requirements for Japan . 18
Bibliography . 20

ISO 23553-1:2007(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 23553-1 was prepared by Technical Committee ISO/TC 161, Control and protective devices for gas and
oil burners and gas and oil burning appliances.
ISO 23553 consists of the following parts, under the general title Safety and control devices for oil burners and
oil-burning appliances — Particular requirements:
⎯ Part 1: Shut-off devices for oil burners

iv © ISO 2007 – All rights reserved

INTERNATIONAL STANDARD ISO 23553-1:2007(E)

Safety and control devices for oil burners and oil-burning
appliances — Particular requirements —
Part 1:
Shut-off devices for oil burners
1 Scope
This part of ISO 23553 specifies safety, constructional and performance requirements, and testing of safety
shut-off devices, for liquid fuels.
This part of ISO 23553 covers type testing only.
It applies to safety shut-off devices which:
⎯ are designed as e.g. automatic valves or fast-closing devices;
⎯ are used in combustion plants to interrupt the flow of liquid fuels with or without delay on closing and with
or without delay on opening;
⎯ are for use with fuel oils;
NOTE For other liquid fuels, additional test methods can be agreed between the manufacturer and the test
authority.
⎯ 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 safety shut-off device, i.e. those parts which are
necessary for the closing function;
⎯ have declared maximum working pressures up to and including 5 000 kPa, for use on burners or in
appliances using liquid fuels;
⎯ are directly or indirectly operated electrically or by mechanical or hydraulic means;
⎯ are fitted with or without closed-position indicator switches.
The methods of test given in this part of ISO 23553 are intended for product type testing.
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.
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation
ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 23553-1:2007(E)
ISO 1817:2005, Rubber, vulcanized — Determination of the effect of liquids
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 7005-3, Metallic flanges — Part 3: Copper alloy and composite flanges
ISO 23550:2004, Safety and control devices for gas burners and gas-burning appliances — General
requirements
ISO 23551-1:2006, Safety and control devices for gas burners and gas-burning appliances — Particular
requirements — Part 1: Automatic valves
IEC 60529:2001, 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, Industrial-process control valves — Part 2-3: Flow capacity — Test procedures
IEC 60730-1:1999, Automatic electrical controls for household and similar use — Part 1: General
requirements
EN 1057, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and
heating applications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
safety shut-off device
device for shutting off the fuel flow in order to avoid dangerous operating conditions in a plant
3.2
closure member
movable part of the control which shuts off the oil flow
3.3
breather hole
orifice which allows atmospheric pressure to be maintained within a compartment of variable volume
3.4
external leak-tightness
leak-tightness of a oil-carrying compartment with respect to the atmosphere
3.5
internal leak-tightness
leak-tightness of the closure member (in the closed position) sealing an oil-carrying compartment with respect
to another compartment or to the outlet of the control
3.6
inlet pressure
pressure at the inlet of the safety shut-off device
2 © ISO 2007 – All rights reserved

ISO 23553-1:2007(E)
3.7
outlet pressure
pressure at the outlet of the safety shut-off device
3.8
maximum working pressure
maximum operating pressure
highest inlet pressure declared by the manufacturer at which the safety shut-off devices may be operated
3.9
minimum working pressure
lowest inlet pressure declared by the manufacturer at which the safety shut-off devices may be operated
3.10
flow rate
volume flowing through the safety shut-off devices per unit time
3.11
rated flow rate
air flow rate at a specified pressure difference declared by the manufacturer, corrected to standard conditions
3.12
maximum ambient temperature
highest temperature of the surrounding air declared by the manufacturer at which the control may be operated
3.13
minimum ambient temperature
lowest temperature of the surrounding air declared by the manufacturer at which the control may be operated
3.14
mounting position
position declared by the manufacturer for mounting the safety shut-off devices
3.15
nominal size
DN
numerical designation of size, for reference purposes, loosely related to manufacturing dimensions, common
to all components in a piping system
NOTE The abbreviation DN stands for diamètre nominal, in French.
3.16
nominal pressure
PN
numerical designation of pressure for reference purposes, related to the maximum working pressure, common
to all components in a piping system
NOTE The abbreviation PN stands for pression nominale, in French.
3.17
differential pressure
difference between the inlet and outlet pressures
3.18
fast-closing device
safety shut-off device with a predetermined time for the closing process
3.19
response times
ISO 23553-1:2007(E)
3.19.1
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
See Figure 1.
NOTE See also 3.13 of ISO 23551-1:2006.

Key
1 delay time
2 opening time
a
open
b
closed
c
signal for opening
d
start of period of change in position
e
end of period of change in position
Figure 1 — Response time of closure member during opening
3.19.2
closing time
time from the beginning until the end of the change in position of the closure member from the open to the
closed position
See Figure 2.
NOTE See also 3.14 of ISO 23551-1:2006.

Key
1 delay time
2 closing time
a
open
b
closed
c
signal for closing
d
start of period of change in position
e
end of period of change in position
Figure 2 — Response time of closure member during closing
4 © ISO 2007 – All rights reserved

ISO 23553-1:2007(E)
3.19.3
delay time
〈opening〉 interval between the signal to open and the point at which the closure member no longer maintains
the required tightness according to 7.2.1.2
See Figure 1.
NOTE See also 3.15 of ISO 23551-1:2006.
3.19.4
delay time
〈closure〉 the interval between the signal to close and the start of change in position of the closure member
See Figure 2.
3.20
opening force
force which effects the opening of the safety shut-off device
3.21
closing force
force which effects the closing of the closure member in the case of failure or interruption of the externally
applied actuating energy, such as spring force, independent of any force provided by fuel oil pressure
3.22
frictional force
largest force required to move the actuating mechanism and the closure member from the open position to the
closed position with the closing force removed, independent of any force provided by fuel oil pressure
NOTE Adapted from 3.10 of ISO 23551-1:2006.
3.23
opening [closing] characteristics
curve representing the movement of the closure member against time on opening [closing]
3.24
actuator
part effecting the movement of the closure member
EXAMPLE Valve disc.
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 during actuation of the moving parts
3.27
direct-flow valve
valve in which the medium, in the valve seat, flows in the direction of the closure member for shutting off the
flow
ISO 23553-1:2007(E)
4 Classification
4.1 Classes of shut-off device
4.1.1 According to the method of operation
The following three types are in this class:
a) safety shut-off device which is opened by hand, held open by auxiliary energy and closed by interruption
or failure of the auxiliary energy;
b) safety shut-off device according to a), which may, however, also be closed by hand;
c) safety shut-off device which is opened and held open by auxiliary energy and closed by interruption or
failure of the auxiliary energy.
4.1.2 According to the installation
The following two types are in this class:
a) for indoor use;
b) for outdoor use.
4.2 Control groups
Controls are grouped according to the bending stress which is specified for testing (see 7.3).
a) Group 1 controls
Controls for use in an appliance or installation where they are not subjected to bending stresses imposed
by installation pipework (e.g. safety shut-off device being a part of the pump).
b) Group 2 controls
Controls for use in any situation, either internal or external to the appliance, typically without support.
NOTE Controls which meet the requirements of a Group 2 control also meet the requirements of a Group 1 control.
5 Test conditions
Tests shall be carried out at an ambient temperature of (20 ± 5) °C, unless otherwise specified.
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.
If no specific methods of test are given, conformity with these requirements shall be verified by inspection
and/or measurement.
6 Construction
6.1 General
Safety shut-off devices shall be designed, manufactured and assembled so that the various functions operate
correctly when installed and used according to the manufacturer’s instructions.
6 © ISO 2007 – All rights reserved

ISO 23553-1:2007(E)
All pressurized parts of a control shall withstand the mechanical and thermal stresses to which they are
subjected without any deformation affecting safety.
When reference is made in this part of ISO 23553 to ISO 23550, the word “gas” shall be replaced by “oil”.
6.2 Construction requirements
6.2.1 Appearance
The requirements in subclause 6.2.1 of ISO 23550:2004 apply.
6.2.2 Holes
The requirements in subclause 6.2.2 of ISO 23550:2004 apply.
6.2.3 Breather holes
The requirements in subclause 6.2.3 of ISO 23550:2004 do not apply.
6.2.4 Screwed fastenings
The requirements in subclause 6.2.4 of ISO 23550:2004 apply.
6.2.5 Jointing
The requirements in subclause 6.2.5 of ISO 23550:2004 apply.
6.2.6 Moving parts
The requirements in subclause 6.2.6 of ISO 23550:2004 apply.
6.2.7 Sealing caps
The requirements in subclause 6.2.7 of ISO 23550:2004 do not apply.
6.2.8 Dismantling and reassembling for servicing and/or adju
...