oSIST prEN 14433:2022
(Main)Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Foot valves
Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Foot valves
This European Standard specifies the requirements for foot valves for use on transportable tanks with a minimum working pressure greater than 50 kPa for the transport of dangerous goods by road and rail.
It is applicable to metallic equipment for use on tanks with gravity and/or pressure bottom loading and discharge for liquid chemicals and liquefied gases. It includes carbon dioxide while excluding refrigerated liquefied gases.
NOTE The standard is also applicable to liquefied gases including LPG, however, for a dedicated LPG standard see EN 13175 [3].
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Tanks für die Beförderung gefährlicher Güter - Ausrüstung für Tanks für die Beförderung von flüssigen Chemieprodukten und Flüssiggasen - Bodenventile
Citernes de transport de matières dangereuses - Équipements de la citerne pour le transport de produits chimiques liquides et de gaz liquéfié - Clapets de fond
Cisterne za prevoz nevarnega blaga - Oprema cistern za prevoz tekočih kemikalij in utekočinjenih plinov - Izpustni ventili
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 14433:2022
01-julij-2022
Cisterne za prevoz nevarnega blaga - Oprema cistern za prevoz tekočih kemikalij
in utekočinjenih plinov - Izpustni ventili
Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid
chemicals and liquefied gases - Foot valvesTanks für die Beförderung gefährlicher Güter - Ausrüstung für Tanks für die Beförderung
von flüssigen Chemieprodukten und Flüssiggasen - BodenventileCiternes de transport de matières dangereuses - Équipements de la citerne pour le
transport de produits chimiques liquides et de gaz liquéfié - Clapets de fondTa slovenski standard je istoveten z: prEN 14433
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
oSIST prEN 14433:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 14433:2022
DRAFT
EUROPEAN STANDARD
prEN 14433
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2022
ICS 23.020.20; 23.060.99 Will supersede EN 14433:2014
English Version
Tanks for the transport of dangerous goods - Tank
equipment for the transport of liquid chemicals and
liquefied gases - Foot 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 - Clapets de fond BodenventileThis draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 296.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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14433:2022 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
oSIST prEN 14433:2022
prEN 14433:2022 (E)
Contents Page
European foreword ............................................................................................................................................. 3
1 Scope .......................................................................................................................................................... 4
2 Normative references .......................................................................................................................... 4
3 Terms and definitions ......................................................................................................................... 5
4 Function .................................................................................................................................................... 5
5 Design and materials ........................................................................................................................... 5
5.1 General ...................................................................................................................................................... 5
5.2 Design ........................................................................................................................................................ 6
5.3 Materials ................................................................................................................................................... 6
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 ........................................................................................................... 7
7.4 Closure, casing and valve assembly pneumatic tightness tests ............................................ 7
7.5 Cyclic test.................................................................................................................................................. 8
7.6 Breakaway test ....................................................................................................................................... 8
7.6.1 General ...................................................................................................................................................... 8
7.6.2 Test apparatus........................................................................................................................................ 8
7.6.3 Test procedure for valves conforming to ADR/RID chapter 6.8 .......................................... 8
7.6.4 Test procedure for valves conforming to ADR/RID chapter 6.7 .......................................... 9
7.6.5 Test procedure for top operated valves ........................................................................................ 9
7.6.6 Post impact adjustments .................................................................................................................... 9
7.6.7 Test report ............................................................................................................................................... 9
8 Production tests ..................................................................................................................................... 9
8.1 General ...................................................................................................................................................... 9
8.2 Function test ........................................................................................................................................... 9
8.3 Valve casing pressure test .................................................................................................................. 9
8.4 Closure, casing and valve assembly pneumatic tests .............................................................10
9 Marking ...................................................................................................................................................10
10 Supply requirements .........................................................................................................................10
10.1 Order information ..............................................................................................................................10
10.2 Installation and operation ...............................................................................................................10
Annex A (normative) Verification of valve design type ......................................................................11
Annex B (informative) Examples of breakaway vectors .....................................................................12
Bibliography ........................................................................................................................................................13
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prEN 14433:2022 (E)
European foreword
This document (prEN 14433:2022) has been prepared by Technical Committee CEN/TC 296 “Tanks for
transport of dangerous goods”, the secretariat of which is held by AFNOR.This document is currently submitted to the enquiry.
This document will supersede EN 14433:2014.
This document has been submitted for reference into:
— 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 with the clauses of
this document.Compared with EN 14433:2014 the following significant changes apply:
a) change of scope;
b) added a note to 5.2.5;
c) added a note to 8.1;
d) modifications to 9.
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oSIST prEN 14433:2022
prEN 14433:2022 (E)
1 Scope
This document specifies the requirements for foot valves for use on transportable tanks with a minimum
working pressure greater than 50 kPa for the transport of dangerous goods by road and rail.
It is applicable to metallic equipment on tanks for the following functions:— primary closure of gravity discharge lines (liquid products);
— primary closure of bottom discharge lines (liquefied gases: liquid phase and gas phase);
— primary closure of top discharge (poisonous liquefied gases: liquid phase and gas phase);
— and other internal valves as defined in Annex F of EN 14564:2019.NOTE The document 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 12266-1:2012, Industrial valves - Testing of metallic valves - Part 1: Pressure tests, test procedures and
acceptance criteria - Mandatory requirementsEN 12266-2:2012, Industrial valves - Testing of metallic valves - Part 2: Tests, test procedures and
acceptance criteria - Supplementary requirementsEN 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 methodEN 13445-3, Unfired pressure vessels - Part 3: Design
EN ISO 11299-1:2018, Plastics piping systems for renovation of underground gas supply networks - Part 1:
General (ISO 11299-1:2018)---------------------- Page: 6 ----------------------
oSIST prEN 14433:2022
prEN 14433:2022 (E)
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 http://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
pressure used for the pressure tests
3.4
nominal size
numerical designation of the size of a component which is a convenient round number approximately
equal to the manufacturing dimension in millimetres[SOURCE: EN ISO 11299-1:2018]
4 Function
The foot valve is a primary valve located in the lower part of the tank to allow the controlled loading and
discharge of the product and to ensure leak tightness in the closed condition.5 Design and materials
5.1 General
The foot valve shall be designed for a working pressure of at least 300 kPa. The foot valve shall normally
be a non-pressure balanced design. If the valve is a pressure balanced design, a surge pressure of 5 times
the MWP shall not jeopardize the tightness of the housing or the function of the valve. The manufacturer
shall specify in drawings and other papers, the design and the materials of the foot valve. The valve
specification shall include information regarding mating tank flange details.---------------------- Page: 7 ----------------------
oSIST prEN 14433:2022
prEN 14433:2022 (E)
5.2 Design
5.2.1 The valve shall provide a closure located within the tank shell.
5.2.2 The valve closure shall be positioned so that the pressure in the tank acts to increase the force on
the valve seat, and shall be so designed as to prevent self-opening of the valve.
5.2.3 The opening of the valve shall be such as to give a minimum flow path through the valve of a
diameter equal to the DN designation of the valve.5.2.4 The operating mechanism shall be protected from inadvertent operation in transit either by a
latching device or by locating within an enclosure.5.2.5 The internal stop-valve of all filling and all discharge openings of tanks (for tank containers with
a capacity greater than 1...
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