EN 14432:2023

SLOVENSKI STANDARD
01-september-2023
Nadomešča:
SIST EN 14432:2015
Cisterne za prevoz nevarnega blaga - Oprema cisterne za prevoz tekočih kemikalij
in utekočinjenih plinov - Izpustni ventili in ventili za vstop plina pri praznjenju
Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid
chemicals and liquefied gases - Product discharge and air inlet valves
Tanks für die Beförderung gefährlicher Güter - Ausrüstung für Tanks für die Beförderung
von flüssigen Chemieprodukten und Flüssiggasen - Produktabsperr- und
Gaswechselventile
Citernes de transport de matières dangereuses - Équipements de la citerne pour le
transport de produits chimiques liquides et de gaz liquéfié - Vannes de mise en pression
de la citerne ou de déchargement du produit
Ta slovenski standard je istoveten z: EN 14432:2023
ICS:
13.300 Varstvo pred nevarnimi Protection against dangerous
izdelki goods
23.020.20 Posode in vsebniki, montirani Vessels and containers
na vozila mounted on vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14432
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 23.020.20; 23.060.99 Supersedes EN 14432:2014
English Version
Tanks for the transport of dangerous goods - Tank
equipment for the transport of liquid chemicals and
liquefied gases - Product discharge and air inlet valves
Citernes destinées au transport de matières Tanks für die Beförderung gefährlicher Güter -
dangereuses - Équipements de la citerne pour le Ausrüstung für Tanks für die Beförderung von
transport de produits chimiques liquides et de gaz flüssigen Chemieprodukten und Flüssiggasen -
liquéfié - Vannes de mise en pression de la citerne ou Produktabsperr- und Gaswechselventile
de vidange du produit
This European Standard was approved by CEN on 21 May 2023.

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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14432:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Design and materials . 6
4.1 General . 6
4.2 Design . 6
4.3 Materials . 6
5 Welding . 7
5.1 Qualification . 7
5.2 Welded joints . 7
6 Test media . 7
6.1 Hydraulic tests . 7
6.2 Pneumatic tests . 7
7 Type tests . 7
7.1 General . 7
7.2 Valve casing hydraulic pressure test . 7
7.3 Valve assembly pressure test . 8
7.4 Valve assembly pneumatic tightness test . 8
7.5 Cyclic test. 8
8 Production tests . 8
8.1 General . 8
8.2 Function test . 8
8.3 Valve casing pressure test . 8
8.4 Valve assembly pneumatic tightness test . 9
9 Marking . 9
10 Supply requirements . 9
10.1 Order information . 9
10.2 Installation and operation . 9
Annex A (normative) Verification of valve design type .10
Annex B (informative) Dry Disconnect Couplings .11
Bibliography .12
European foreword
This document (EN 14432:2023) has been prepared by Technical Committee CEN/TC 296 “Tanks for
transport of dangerous goods”, the secretariat of which is held by AFNOR.
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 January 2024, and conflicting national standards shall
be withdrawn at the latest by January 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 14432:2014.
This document has been submitted for reference in:
— the RID; and
— the technical annexes of the ADR.
NOTE These regulations take precedence over any clause of this document. It is emphasized that RID/ADR are
being revised regularly at intervals of two years which may lead to temporary non-compliances of the clauses of
this document with the regulations.
The main changes compared to the previous edition are listed below:
a) the Scope has been revised;
b) Normative references have been updated;
c) the definition and source for 3.4 has been changed;
d) former Clause 4 “functions” has been removed;
e) revision of Clause 4 “Design and materials”;
f) a new Clause 5 “Welding” has been introduced;
g) a new Annex B “dry disconnect couplings” has been introduced.
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, Türkiye and the United
Kingdom.
1 Scope
This document specifies the requirements for valves useable on tanks with a minimum working pressure
greater than 50 kPa for the transport of dangerous goods by road and rail for the following functions:
Tanks for transport of liquid products:
— secondary closure of bottom discharge lines;
— primary closure on top of the tank (liquid, air, other connections);
— aeration valve on top of the tank;
— and other valves as specified in Annex F of EN 14564:2019 according to the scope of this document.
Tanks for gases:
— secondary closure of bottom discharge lines;
— secondary closure on top of the tank for poisonous gases: liquid phase and gas phase;
— and other valves as specified in Annex F of EN 14564:2019.
This includes the following types of closures:
— valves (e.g. spindle operated valves, plug and ball valves, butterfly valves and gate valves);
— dry disconnect couplings.
Primary closures of the gas phase at the foot of a tank for liquefied gas are covered by the requirements
of foot valves in EN 14433.
NOTE The standard is also applicable to liquefied gases including LPG, however, for a dedicated LPG standard
see EN 13175 [3]
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 736-1, Valves - Terminology - Part 1: Definition of types of valves
EN 10204, Metallic products - Types of inspection documents
EN 12266-1:2012, Industrial valves - Testing of metallic valves - Part 1: Pressure tests, test procedures and
acceptance criteria - Mandatory requirements
EN 12266-2:2012, Industrial valves - Testing of metallic valves - Part 2: Tests, test procedures and
acceptance criteria - Supplementary requirements
EN 12516-1, Industrial valves - Shell design strength - Part 1: Tabulation method for steel valve shells
EN 12516-2, Industrial valves - Shell design strength - Part 2: Calculation method for steel valve shells
EN 12516-3:2002, Valves - Shell design strength - Part 3: Experimental method
EN 13445-3, Unfired pressure vessels - Part 3: Design
EN ISO 14732, Welding personnel - Qualification testing of welding operators and weld setters for
mechanized and automatic welding of metallic materials (ISO 14732)
EN ISO 3834-1, Quality requirements for fusion welding of metallic materials - Part 1: Criteria for the
selection of the appropriate level of quality requirements (ISO 3834-1)
EN ISO 3834-3, Quality requirements for fusion welding of metallic materials - Part 3: Standard quality
requirements (ISO 3834-3)
EN ISO 9606 (all parts), Approval testing of welders - Fusion welding - Part 4: Nickel and nickel alloys
(ISO 9606 (all parts))
EN ISO 15613, Specification and qualification of welding procedures for metallic materials - Qualification
based on pre-production welding test (ISO 15613)
EN ISO 15614 (all parts), Specification and qualification of welding procedures for metallic materials -
Welding procedure test (ISO 15614 (all parts))
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology 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
maximum working pressure
MWP
maximum pressure up to which the valve can be operated, not more than the test pressure divided by 1,3
[SOURCE: ADR/RID chapter 6.8]
3.2
maximum allowable working pressure
MAWP
maximum pressure up to which the valve can be operated, not more than the test pressure divided by 1,3
(liquified gases) respectively 1,5 (liquids)
[SOURCE: ADR/RID chapter 6.7]
3.3
test pressure
p
...