SIST EN 13617-3:2021
(Main)Petrol filling stations - Part 3: Safety requirements for construction and performance of shear valves
Petrol filling stations - Part 3: Safety requirements for construction and performance of shear valves
This European Standard specifies safety and environmental requirements for the construction and performance of shear valves to be fitted to metering pumps, dispensers, and/or satellite delivery systems installed at petrol filling stations and used to dispense liquid fuels into the tanks of motor vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l min-1.
The requirements apply to shear valves at ambient temperatures from -20 °C to +40 °C with the possibility for an extended temperature range.
It pays particular attention to mechanical and hydraulic characteristics.
NOTE 1 This European Standard does not apply to equipment for use with liquefied petroleum gas (LPG) or liquefied natural gas (LNG) or compressed natural gas (CNG).
NOTE 2 Fuels other than of Explosion Group IIA are excluded from this European Standard.
Tankstellen - Teil 3: Sicherheitstechnische Anforderungen an Bau- und Arbeitsweise von Abscherventilen
Dieses Dokument legt die sicherheitstechnischen und Umweltanforderungen an den Bau und die Arbeitsweise von Abscherventilen an Zapfsäulen, druckversorgten Zapfsäulen und/oder Nebenzapfstellen fest, die an Tankstellen installiert werden für die Abgabe von flüssigen Kraftstoffen und wässriger Harnstofflösung in Tanks von Kraftfahrzeugen, Booten und Leichtflugzeugen sowie in tragbare Behälter bei Durchflussraten von bis zu 200 l · min−1.
Dieses Dokument gilt für Kraftstoffe der Explosionsgruppe IIA und deren Dämpfe und auch für wässrige Harnstofflösung nach ISO 22241-1.
ANMERKUNG 1 Dieses Dokument gilt nicht für Kraftstoffe, die nicht zur Explosionsgruppe IIA gehören.
Die Anforderungen gelten für Abscherventile bei Umgebungstemperaturen zwischen −20 °C und +40 °C, wobei ein erweiterter Temperaturbereich möglich ist.
In diesem Dokument werden besonders die mechanischen und hydraulischen Eigenschaften berücksichtigt.
Dieses Dokument gilt nicht für Ausrüstung, die für die Abgabe von verflüssigten oder verdichteten Gasen vorgesehen ist.
Stations-service - Partie 3 : Exigences de sécurité relatives à la construction et aux performances des raccords de sécurité
Le présent document spécifie les exigences relatives à la construction et aux performances en matière de
sécurité et de protection de l’environnement des vannes de sécurité à monter sur des distributeurs
avec/sans pompe immergée et/ou systèmes de livraison satellites installés sur stations-service et utilisés
pour distribuer des carburants liquides et une solution aqueuse d'urée dans les réservoirs de véhicules à
moteur, de bateaux, d’avions légers et dans des réservoirs portables, à des débits pouvant atteindre
200 l · min-1.
Le présent document s’applique aux carburants et leurs vapeurs du Groupe d’explosion IIA, mais
également à la solution aqueuse d'urée conformément à l’ISO 22241-1.
NOTE 1 Les carburants autres que ceux du Groupe d’explosion IIA sont exclus de la présente Norme européenne.
Les exigences s’appliquent aux raccords cassants à des températures comprises entre –20 °C et +40 °C
avec la possibilité d’étendre la plage de température.
Le présent document accorde une importance particulière aux caractéristiques mécaniques et
hydrauliques.
Le présent document ne s’applique pas à l’équipement distribuant des gaz comprimés ou liquéfiés.
Bencinski servisi - 3. del: Varnostne zahteve za izdelavo in lastnosti varovalnih ventilov
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 13617-3:2021
01-december-2021
Nadomešča:
SIST EN 13617-3:2012
Bencinski servisi - 3. del: Varnostne zahteve za izdelavo in lastnosti varovalnih
ventilov
Petrol filling stations - Part 3: Safety requirements for construction and performance of
shear valves
Tankstellen - Teil 3: Sicherheitstechnische Anforderungen an Bau- und Arbeitsweise von
Abscherventilen
Stations-service - Partie 3 : Exigences de sécurité relatives à la construction et aux
performances des raccords de sécurité
Ta slovenski standard je istoveten z: EN 13617-3:2021
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
SIST EN 13617-3:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 13617-3:2021
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SIST EN 13617-3:2021
EN 13617-3
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2021
EUROPÄISCHE NORM
ICS 75.200 Supersedes EN 13617-3:2012
English Version
Petrol filling stations - Part 3: Safety requirements for
construction and performance of shear valves
Stations-service - Partie 3 : Exigences de sécurité Tankstellen - Teil 3: Sicherheitstechnische
relatives à la construction et aux performances des Anforderungen an Bau- und Arbeitsweise von
raccords de sécurité Abscherventilen
This European Standard was approved by CEN on 14 June 2021.
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13617-3:2021 E
worldwide for CEN national Members.
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Explosion protection measures . 7
5 Construction . 7
5.1 General requirements . 7
5.2 Specific requirements . 7
5.3 Classes of construction . 8
5.4 Threads . 8
6 Physical properties . 8
7 Operational requirements . 8
8 Tests . 10
8.1 General . 10
8.2 Type tests . 10
8.3 Production acceptance tests . 10
8.4 Routine tests . 10
9 Information for use . 11
9.1 General . 11
9.2 Marking and instruction . 11
10 Environmental aspects . 11
Annex A (normative) Instructions — Guide for items to be included in manufacturers’
installation and user manual . 12
Annex B (normative) Test methods . 13
B.1 General requirements . 13
B.2 Pressure test of liquid shear valves (routine test) . 13
B.3 Main valve test of liquid shear valve (routine test) . 13
B.4 Pressure relief valve test (routine test) . 14
B.5 Liquid compatibility preconditioning (type test) . 14
B.6 Pressure test (type test) . 14
B.7 Main valve test (type test) . 14
B.8 Check valve test (class I only) (type test) . 15
B.9 Pressure relief valve test (class I only) (type test). 15
B.10 Thermal link test 1 (class I and class II only) (type test and production acceptance
test) . 15
B.11 Thermal link test 2 (class I and class II only) (type test and production acceptance
test) . 15
2
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
B.12 Main valve closure test of liquid shear valves (type test and production acceptance
test) . 16
B.13 Main valve closure test of vapour shear valves (type test and production acceptance
test) . 16
B.14 Fire resistance test 1 (type test) . 16
B.15 Fire resistance test 2 (type test) . 17
B.16 Pressure test of vapour shear valves (routine test) . 17
B.17 Main valve test of vapour shear valve (routine test) . 17
Annex C (informative) Environmental aspects . 18
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/34/EU aimed to be covered . 20
Bibliography . 22
3
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
European foreword
This document (EN 13617-3:2021) has been prepared by Technical Committee CEN/TC 393 “Equipment
for storage tanks and for filling stations”, 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 March 2022, and conflicting national standards shall be
withdrawn at the latest by March 2024.
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 13617-3:2012.
In comparison with the 2012 edition, the following significant changes were made:
— shear valves for aqueous urea solution added;
— testing for vapour shear valves further differentiated from testing for fuel shear valves. Tests B.16,
and B.17 are introduced;
— fire resistance test B.14 and B15 introduced and pass/fail criteria defined in Table 3;
— the liquid compatibility preconditioning fluid for shear valves is defined in EN 13617-1.
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 2014/34/EU.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.
EN 13617 consists of four parts:
— Part 1: Safety requirements for construction and performance of metering pumps, dispensers and
remote pumping units;
— Part 2: Safety requirements for construction and performance of safe breaks for use on metering pumps
and dispensers;
— Part 3: Safety requirements for construction and performance of shear valves;
— Part 4: Safety requirements for construction and performance of swivels for use on metering pumps and
dispensers.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
4
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
1 Scope
This document specifies safety and environmental requirements for the construction and performance
of shear valves to be fitted to metering pumps, dispensers, and/or satellite delivery systems installed at
petrol filling stations and used to dispense liquid fuels and aqueous urea solution into the tanks of motor
−1
.
vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l · min
This document applies to fuels and their vapours of subdivision Group IIA according to
EN ISO/IEC 80079-20-1 and also aqueous urea solution according to ISO 22241-1.
The requirements apply to shear valves at ambient temperatures from −20 °C to +40 °C with the
possibility for an extended temperature range.
This document pays particular attention to mechanical and hydraulic characteristics.
This document does not apply to equipment dispensing compressed or liquefied gases.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1127-1:2019, Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and
methodology
EN 13617-1:2021, Petrol filling stations - Part 1: Safety requirements for construction and performance of
metering pumps, dispensers and remote pumping units
EN IEC 60079-0:2018, Explosive atmospheres - Part 0: Equipment - General requirements
(IEC 60079-0:2017)
EN ISO 80079-36:2016, Explosive atmospheres - Part 36: Non-electrical equipment for explosive
atmospheres - Basic method and requirements (ISO 80079-36:2016)
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 11925-3:1997, Reaction to fire tests — Ignitability of building products subjected to direct impingement
of flame — Part 3: Multi-source test
ISO 22241-1:2019, Diesel engines — NOx reduction agent AUS 32 — Part 1: Quality requirements
5
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13617-1:2021 and the following
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
shear valve
component whose function is to prevent continuous liquid flow or vapour release in the event of impact
or fire
3.2
main valve
normally open valve on the inlet side, closing when the shear valve operates
3.3
main valve
normally open valve on the outlet side, closing when the shear valve operates
3.4
pressure relief valve
valve to allow liquid to return to the pipework below the dispenser if pressure in the dispenser increases
beyond a defined level
3.5
separation zone
part of the shear valve designed to be the first section to fracture when stressed
3.6
mechanical link
device to activate the closing mechanism automatically to stop the flow of liquid when the shear valve
breaks
3.7
thermal detector
device to activate the closing mechanism automatically to stop the flow of liquid when the temperature
in the vicinity of the shear valve exceeds the operating temperature
3.8
test plug
device to allow pressure testing of associated pipework
3.9
mounting point
rigid attachment facility on the inlet and outlet sections of the shear valve
6
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
4 Explosion protection measures
4.1 Explosion protection measures shall be taken in accordance with EN 1127-1:2019 and
EN 13617-1:2021, Annex B.
4.2 The shear valve shall be explosion protected and shall be Category 2G, Group II, EPL Gb in
accordance with EN ISO 80079-36:2016. When a shear valve has a vapour path, the vapour path shall be
Category 1G, Group II, EPL Ga in accordance with EN ISO 80079-36:2016. The shear valve shall fulfil the
requirements for temperature Class T3 and Group IIA in accordance with EN IEC 60079-0:2018 or
EN ISO 80079-36:2016.
5 Construction
5.1 General requirements
5.1.1 All electrical and non-electrical equipment and components, intended for use in potentially
explosive atmospheres, shall be designed and constructed according to good engineering practice and in
conformity with the required categories/EPLs for Group II equipment to ensure avoidance of any ignition
source. To classify the category/EPL of the equipment it shall be subjected to an ignition hazard
assessment in accordance with EN ISO 80079-36:2016, 5.2.
5.1.2 All materials used in the construction shall be chemically and dimensionally stable under known
service conditions. Materials likely to come into contact with fuels in both liquid and vapour phases shall
be resistant to attack by these fuels. Conformity shall be demonstrated by testing in accordance with
Clause 8.
5.1.3 Light alloys when used shall conform to EN IEC 60079-0:2018, 8.3. If other specifications for
explosion protected equipment impose more stringent requirements then the more stringent
requirement shall apply.
5.1.4 All components shall be of corrosion resistant material or shall be provided with a corrosion
resistant protective coating.
5.1.5 Outside surfaces likely to be handled shall be free of sharp edges.
5.2 Specific requirements
5.2.1 Means shall be provided to connect the shear valve to input and output pipework. The means
selected shall not fail at forces less than the design shear force of the shear valve.
5.2.2 The shear valve shall be so designed that after fracture of the weak section, the input and output
sections shall be completely decoupled.
5.2.3 The shear valve shall not have a means to prevent the main valve from closing completely when
it is operated by the weak section or by the thermal detector.
5.2.4 The thermal detector shall be so constructed that when it operates the main valve closes.
5.2.5 Shear valves for liquids may include a manual means of closing the main valve (liquid) for
maintenance purposes.
5.2.6 Test plugs, where fitted to shear valves in liquid containment systems, shall be on the inlet side
of the main valve.
7
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
5.3 Classes of construction
Shear valves are classified in accordance with Table 1.
Table 1 — Classes of construction
Valve type Class
I II III
Main valve Yes Yes Yes
Thermal detector Yes Yes No
Check valve Yes No No
Pressure relief valve Yes No No
Class I and II for liquid pressure systems, and Class III for vapour systems only.
5.4 Threads
Input and output threads shall be in accordance with ISO 7-1:1994.
6 Physical properties
The physical properties of the shear valve shall conform to Table 2 when tested by the methods indicated.
Table 2 — Physical properties of shear valve
Physical property Requirement Test method
Liquid compatibility (preconditioning) Clause 5 B.5
Electrostatic properties EN ISO 80079-36:2016, 6.7 EN ISO 80079-36:2016
Fire resistance No catastrophic failure B.14
Characteristics body and/or internal components to Metallic enclosure —
prevent dangerous, mechanically generated, sparks requirements of
(resistance to sparking), including during separation EN IEC 60079-0:2018, 8.3
of inlet and outlet sections
7 Operational requirements
The shear valve shall conform to the operational requirements according to Table 3 and Table 4 when
tested by the methods indicated.
8
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
Table 3 — Operational requirements
Item Requirement Test
method
Housing of liquid No quantifiable leakage, as evidenced by bubbles, or permanent B.2
shear valves deformation visible to an eye with normal visual acuity.
Housing of vapour No quantifiable leakage, as evidenced by bubbles, or permanent B.16
shear valves deformation visible to an eye with normal visual acuity.
Main valve of No quantifiable leakage, as evidenced by bubbles, or permanent B.3
liquid shear valves deformation visible to an eye with normal visual acuity.
Main valve of No quantifiable leakage, as evidenced by bubbles, or permanent B.17
vapour shear deformation visible to an eye with normal visual acuity.
valves
Pressure relief There shall be a continuous leak through the relief valve. B.4
valve test
Housing B.6.5 No catastrophic damage B.6
B.6.7 No leakage
Main valve B.7.5 No catastrophic damage B.7
B.7.7 No leakage
Check valve No quantifiable leakage or permanent deformation visible to an eye B.8
(class I only) with normal visual acuity.
Pressure relief There shall be a continuous leak through the relief valve. B.9
valve (class I only)
Thermal link 1 Main valve shall remain open. B.10
(class I and class II
only)
Thermal link 2 Main valve shall be closed. B.11
(class I and class II
only)
Main valve closure Main valve shall be closed. There shall be no continuous leakage past B.12
main valve. Weak section shall have permitted separation of the inlet
(Shear valve for
and outlet sections at a bending moment of ≤ 880 Nm.
liquids)
Main valve closure Main valve shall be closed. There shall be no continuous leakage past B.13
main valve. Weak section shall have permitted separation of the inlet
(Shear valve for
and outlet sections at a bending moment of ≤ 880 Nm.
vapour recovery)
Fire resistance B.14.3 and B.15.3 No catastrophic failure a of the shear valve body. B.14 and
Main valve shall remain closed. The shear valve assembly shall not B.15
support sustained ignition, create flaming debris, cause “after
flaming” or “progressive smouldering”.
B.14.4 and B.15.4 The volume of liquid which leaks through the
shear valve assembly shall be < 500 ml.
NOTE Catastrophic failure of the shear valve body following the fire resistance test can be determined by
replacing the internal components of the complete, non-separated, shear valve assembly and then performing
test B.6, with a result of B.6.7: No leakage.
9
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
8 Tests
8.1 General
Testing shall be performed in accordance with Table 4 and using the test methods of Annex B.
8.2 Type tests
All four shear valves shall be preconditioned in accordance with B.5, and then tested in accordance with
B.6, B.7, B.8 and B.9.
For Class I and Class II shear valves, one unit shall be tested in accordance with B.10 and then B.11.
One unit shall be tested in accordance with B.14.
Two units shall be tested in accordance with B.12 or B.13. Following separation of the inlet and outlet
sections of a fuel shear valve, the inlet section of one these units shall then be tested in accordance with
B.15. Following separation of the inlet and outlet sections of a vapour shear valve, the outlet section of
one these units shall then be tested in accordance with B.15.
8.3 Production acceptance tests
Thermal link tests, where relevant, in accordance with B.10 and B.11, a check valve test in accordance
with B.8, and a main valve closure test in accordance with B.12 or B.13, shall be performed on a sample
of not less than 0,5 % of any given batch. Each batch shall have at least one sample tested. These tests
shall be in accordance with Table 4.
8.4 Routine tests
Routine tests shall be performed on each finished shear valve.
Table 4 — Tests
Property Type test Production Routine test
acceptance test Clause reference
Clause reference
Clause reference
Physical property
Liquid compatibility test B.5 — —
Fire resistance test 1 B.14 — —
Fire resistance test 2 B.15 — —
Operational requirements
Pressure test B.6 — B.2 or B.16
Main valve test B.7 — B.3 or B.17
Check valve test B.8 — —
Pressure relief valve test B.9 — B.4
Thermal link test 1 B.10 B.10 —
Thermal link test 2 B.11 B.11 —
Main valve closure test B.12 B.12 —
(shear valve for liquids)
10
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
Property Type test Production Routine test
acceptance test Clause reference
Clause reference
Clause reference
Main valve closure test B.13 B.13 —
(shear valve for vapour
recovery)
Fire resistance test 1 B.14 — —
Fire resistance test 2 B.15 — —
9 Information for use
9.1 General
Information for use shall be according to Annex A and EN 13617-1:2021, 7.3.
9.2 Marking and instruction
If the size of the shear valves is not large enough for the marking, then marking shall be in accordance
with EN IEC 60079-0:2018.
Shear valves shall be marked legibly and indelibly during the manufacturing process; where necessary
this marking can be made visible for inspection by the easy removal of plastic covers. Marking shall
include at least the following information:
— manufacturer’s name or identification;
— manufacturer’s type indication;
— the ambient temperature range if it is outside the temperature range of −20 °C to +40 °C;
— Class – as defined by this document;
— serial number, batch code or date code with a precision of at least year and quarter;
— direction of flow, if necessary;
— EN number.
Instructions shall be provided by the manufacturer for the safe installation, operation and maintenance
of the shear valve.
10 Environmental aspects
Environmental aspects should be considered in accordance with Annex C.
11
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
Annex A
(normative)
Instructions — Guide for items to be included in manufacturers’ installation
and user manual
1) Specification for mounting of shear valve to ensure that mounting does not break free before the
shear valve operates. For the effective operation of a shear valve, it shall be mounted such that the
external forces are permitted to act directly on its separation zone. In general, this requirement shall
be realized by attaching the shear valve, via one of its mounting points, to a separate and rigid
structure which forms part of the pump/dispenser housing and via the other attachment point to a
separate and rigid structure providing the pipework external to the pump/dispenser housing. Means
shall be provided to enable both input and output sections of the shear valve to be installed securely
such that, in the event of an impact on the dispenser, the input forces are transmitted to the weak
section.
2) Requirement to remove shipping auxiliaries before use.
3) Instructions for the proper installation of the test plug, if fitted.
4) Warning about the dangers of manually setting and re-setting shear valves.
5) Information as to how to make leak-tight input and output joints.
12
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SIST EN 13617-3:2021
EN 13617-3:2021 (E)
Annex B
(normative)
Test methods
B.1 General requirements
All pressure is by gauge (over-pressure) readings.
Where a test liquid is required for the testing of fuel shear valves, it shall be odourless kerosene except
where otherwise noted. Water, or a mixture of water and glycol up to 15 % by volume, shall be used for
the testing of aqueous urea solution shear valves except where otherwise noted.
Air can be used as a test medium where a pressure differential method of test is used.
All tests shall be carried out at (20 ± 5) °C unless otherwise noted.
B.2 Pressure test of liquid shear valves (routine test)
B.2.1 To determine whether the pressurized compartments of the shear valve body withstand a
pressure of 525 kPa (5,25 bar).
B.2.2 The main valve of the shear valve shall be open and the outlet of the shear valve shall be plugged.
+50 +05,
The shear valve shall be totally immersed in test liquid and air pressure of kPa [( 5,25 ) bar]
525
0 0
shall be applied via the inlet.
B.2.3 After 5 s, while pressure is maintained, it shall be observed for leaks and after pressure is
removed it shall be observed for permanent deformation. The results shall be recorded.
B.2.4 Alternatively to this test, for instance, a pressure differential test may be applied provided the
results are comparable to those achieved by this test.
B.3 Main valve test of liquid shear valve (routine test)
B.3.1 To determine whether the c
...
SLOVENSKI STANDARD
oSIST prEN 13617-3:2018
01-november-2018
Bencinski servisi - 3. del: Varnostne zahteve za izdelavo in lastnosti varovalnih
ventilov
Petrol filling stations - Part 3: Safety requirements for construction and performance of
shear valves
Tankstellen - Teil 3: Sicherheitstechnische Anforderungen an Bau- und Arbeitsweise von
Abscherventilen
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13617-3:2018
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oSIST prEN 13617-3:2018
DRAFT
EUROPEAN STANDARD
prEN 13617-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2018
ICS 75.200 Will supersede EN 13617-3:2012
English Version
Petrol filling stations - Part 3: Safety requirements for
construction and performance of shear valves
Stations-service - Partie 3 : Exigences de sécurité Tankstellen - Teil 3: Sicherheitstechnische
relatives à la construction et aux performances des Anforderungen an Bau- und Arbeitsweise von
raccords de sécurité Abscherventilen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 393.
If this draft becomes a European Standard, 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.
This draft European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13617-3:2018 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Explosion protection measures . 8
5 Construction . 8
5.1 General requirements . 8
5.2 Specific requirements . 8
5.3 Classes of construction . 9
5.4 Threads . 9
6 Physical properties . 9
7 Operational requirements . 9
8 Tests . 11
8.1 General . 11
8.2 Type tests . 11
8.3 Production acceptance tests . 11
8.4 Routine tests . 11
9 Information for use . 12
9.1 General . 12
9.2 Marking and instruction . 12
Annex A (normative) Instructions — Guide for items to be included in manufacturers'
installation and user manual . 13
Annex B (normative) Test methods . 14
B.1 General requirements . 14
B.2 Pressure test of liquid shear valves (routine test) . 14
B.3 Main valve test of liquid shear valve (routine test) . 14
B.4 Pressure relief valve test (routine test) . 15
B.5 Liquid compatibility preconditioning (type test) . 15
B.6 Pressure test (type test) . 15
B.7 Main valve test (type test) . 15
B.8 Check valve test (class I only) (type test) . 16
B.9 Pressure relief valve test (class I only) (type test). 16
B.10 Thermal link test 1 (class I and class II only) (type test and production acceptance
test) . 16
B.11 Thermal link test 2 (class I and class II only) (type test and production acceptance
test) . 16
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B.12 Main valve closure test of liquid shear valves (type test and production acceptance
test) . 17
B.13 Main valve closure test of vapour shear valves (type test and production acceptance
test) . 17
B.14 Fire resistance test (type test) . 17
B.15 Pressure test of vapour shear valves (routine test) . 18
B.16 Main valve test of vapour shear valve (routine test) . 18
Annex C (informative) Environmental aspects . 19
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/34/EU published in the Official Journal of the
European Union L 96/309 on 29.3.2014 aimed to be covered . 21
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European foreword
This document (prEN 13617-3:2018) has been prepared by Technical Committee CEN/TC 393
“Equipment for tanks and filling stations”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13617-3:2012.
Compared with the 2012 edition, the following fundamental changes were made:
— Shear valves for aqueous urea solution added.
— Testing for vapour shear valves further differentiated from testing for fuel shear valves. Tests B.15
and B.16 are introduced.
— Fire resistance test B.14 and pass/fail criteria defined in Table 3
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 European Standard Petrol filling stations consists of four parts:
— Part 1: Safety requirements for construction and performance of metering pumps, dispensers and
remote pumping units;
— Part 2: Safety requirements for construction and performance of safe breaks for use on metering
pumps and dispensers;
— Part 3: Safety requirements for construction and performance of shear valves;
— Part 4: Safety requirements for construction and performance of swivels for use on metering
pumps and dispensers.
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Introduction
The function of the shear valve is to prevent continuous liquid or vapour release in the event of impact
or fire.
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1 Scope
This document specifies safety and environmental requirements for the construction and performance
of shear valves to be fitted to metering pumps, dispensers, and/or satellite delivery systems installed at
petrol filling stations and used to dispense liquid fuels and aqueous urea solution into the tanks of
-1
motor vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l · min .
This document applies to fuels and their vapours of Explosion Group IIA, and also aqueous urea solution
according to ISO 22241-1.
NOTE 1 Fuels other than of Explosion Group IIA are excluded from this document.
The requirements apply to shear valves at ambient temperatures from –20 °C to +40 °C with the
possibility for an extended temperature range.
This document pays particular attention to mechanical and hydraulic characteristics.
This document does not apply to equipment dispensing compressed or liquefied gases.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 976-1:1997, Underground tanks of glass-reinforced plastics (GRP) - Horizontal cylindrical tanks for
the non-pressure storage of liquid petroleum based fuels - Part 1: Requirements and test methods for single
wall tanks
EN 1127-1, Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and
methodology
prEN 13617-1:2018, Petrol filling stations — Part 1: Safety requirements for the construction and
performance of metering pumps, dispensers and remote pumping units
EN 60079-0:2012, Explosive atmospheres - Part 0: Equipment - General requirements (IEC 60079 0:2011,
modified)
EN ISO 80079-36:2016, Explosive atmospheres - Part 36: Non-electrical equipment for explosive
atmospheres - Basic method and requirements (ISO 80079-36:2016)
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 11925-3, Reaction to fire tests — Ignitability of building products subjected to direct impingement of
flame — Part 3: Multi-source test
ISO 22241-1, Diesel engines – NOx reduction agent AUS 32 — Part 1:Quality requirements
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3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 13617-1:2018 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
main valve (liquid)
normally open valve on the inlet side, closing when the shear valve operates
3.2
main valve (vapour)
normally open valve on the outlet side, closing when the shear valve operates
3.3
pressure relief valve
valve to allow liquid to return to the pipework below the dispenser if pressure in the dispenser
increases beyond a defined level
3.4
separation zone
designed to be the first section of the shear valve to fracture when stressed
3.5
mechanical link
device to activate the closing mechanism automatically to stop the flow of liquid when the shear valve
breaks
3.6
thermal detector
device to activate the closing mechanism automatically to stop the flow of liquid when the temperature
in the vicinity of the shear valve exceeds the operating temperature
3.7
test plug
device to allow pressure testing of associated pipework
3.8
mounting point
rigid attachment facility on the inlet and outlet sections of the shear valve
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4 Explosion protection measures
4.1 Explosion protection measures shall be taken in accordance with EN 1127-1 and Annex B of
prEN 13617-1:2018.
4.2 The shear valve shall be explosion protected and shall be Category 2, Group II, EPL Gb in
accordance with EN ISO 80079-36. When a shear valve has a vapour path, the vapour path shall be
Category 1, Group II, EPL Ga in accordance with EN ISO 80079-36. The shear valve shall fulfil the
requirements for temperature Class T3 and Group IIA in accordance with EN 60079-0 or
EN ISO 80079-36.
5 Construction
5.1 General requirements
5.1.1 All electrical and non-electrical equipment and components, intended for use in potentially
explosive atmospheres, shall be designed and constructed according to good engineering practice and
in conformity with the required categories/EPLs for Group II equipment to ensure avoidance of any
ignition source. To classify the category/EPL of the equipment it shall be subjected to an ignition hazard
assessment in accordance with 5.2 of EN ISO 80079-36:2016.
5.1.2 All materials used in the construction shall be chemically and dimensionally stable under known
service conditions. Materials likely to come into contact with fuels in both liquid and vapour phases
shall be resistant to attack by these fuels. Conformity shall be demonstrated by testing in accordance
with Clause 8.
5.1.3 Light alloys when used shall conform to EN 60079-0:2012, 8.3. If other specifications for
explosion protected equipment impose more stringent requirements then the more stringent
requirement shall apply.
5.1.4 All components shall be of corrosion resistant material or shall be provided with a corrosion
resistant protective coating.
5.1.5 Outside surfaces likely to be handled shall be free of sharp edges.
5.2 Specific requirements
5.2.1 Means shall be provided to connect the shear valve to input and output pipework. The means
selected shall not fail at forces less than the design shear force of the shear valve.
5.2.2 The shear valve shall be so designed that after fracture of the weak section, the input and output
sections shall be completely decoupled.
5.2.3 The shear valve shall not have a means to prevent the main valve from closing completely when
it is operated by the weak section or by the thermal detector.
5.2.4 The thermal detector shall be so constructed that when it operates the main valve closes.
5.2.5 Shear valves for liquids may include a manual means of closing the main valve (liquid) for
maintain purposes.
5.2.6 Test plugs, where fitted to shear valves in liquid containment systems, shall be on the inlet side
of the main valve.
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5.3 Classes of construction
Shear valves are classified in accordance with Table 1.
Table 1 — Classes of construction
Valve type Class
I II III
Main valve Yes Yes Yes
Thermal detector Yes Yes No
Check valve Yes No No
Pressure relief valve Yes No No
Class I and II for liquid pressure systems, and Class III for vapour systems only.
5.4 Threads
Input and output threads shall be in accordance with ISO 7 −1.
6 Physical properties
The physical properties of the shear valve shall conform to Table 2 when tested by the methods
indicated.
Table 2 — Physical properties of shear valve
Physical property Requirement Test method
Liquid compatibility (preconditioning) Clause 5 B.5
Electrostatic properties 6.7 of EN ISO 80079-36:2016 EN ISO 80079-36
Fire resistance No catastrophic failure B.14
Characteristics body and/or internal Metallic enclosure requirements —
components to prevent dangerous, of EN 60079-0:2012, 8.3
mechanically generated, sparks (resistance
to sparking), including during separation of
inlet and outlet sections
7 Operational requirements
The shear valve shall conform to the operational requirements according to Table 3 and Table 4 when
tested by the methods indicated.
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Table 3 — Operational requirements
Item Requirement Test method
Housing of liquid shear valves No quantifiable leakage, as evidenced by bubbles, B.2
or permanent deformation visible to an eye with
normal visual acuity.
Housing of vapour shear No quantifiable leakage, as evidenced by bubbles, B.15
valves or permanent deformation visible to an eye with
normal visual acuity.
Main valve No quantifiable leakage, as evidenced by bubbles, B.3
or permanent deformation visible to an eye with
normal visual acuity.
Pressure relief valve test There shall be a continuous leak through the relief B.4
valve
Housing B.6.5 No catastrophic damage B.6
B.6.7 No leakage
Main valve B.7.5 No catastrophic damage B.7
B.7.7 No leakage
Check valve (class I only) No quantifiable leakage or permanent deformation B.8
visible to an eye with normal visual acuity
Pressure relief valve (class I There shall be a continuous leak through the relief B.9
only) valve
Thermal link 1 (class I and Main valve shall remain open B.10
class II only)
Thermal link 2 (class I and Main valve shall be closed B.11
class II only)
Main valve closure Main valve shall be closed. There shall be no B.12
continuous leakage past main valve. Weak section
(Shear valve for liquids)
shall have permitted separation of the inlet and
outlet sections at a bending moment of ≤ 880N,
Main valve closure Main valve shall be closed. There shall be no B.13
continuous leakage past main valve. Weak section
(Shear valve for vapour
shall have permitted separation of the inlet and
recovery)
outlet sections at a bending moment of ≤ 880N.
a
F
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