prEN 14912
(Main)LPG equipment and accessories - Inspection and maintenance of LPG cylinder valves at time of periodic inspection of cylinders
LPG equipment and accessories - Inspection and maintenance of LPG cylinder valves at time of periodic inspection of cylinders
This document specifies the requirements for inspection and maintenance of LPG cylinder valves, either manually operated or self-closing, for reuse. It applies when the valve is either inspected or refurbished at the time of periodic inspection of the cylinder.
This document may also be applied at any other time, for example, when maintenance of the valve is necessary.
Flüssiggas-Geräte und Ausrüstungsteile - Inspektion und Wartung von Ventilen für Flaschen für Flüssiggas (LPG) zum Zeitpunkt der wiederkehrenden Inspektion der Flaschen
Dieses Dokument legt die Anforderungen an die Inspektion und Wartung von entweder handbetätigten oder selbstschließenden Ventilen für LPG-Flaschen für die Wiederverwendung fest. Es gilt, wenn das Ventil zum Zeitpunkt der wiederkehrenden Inspektion der Flasche entweder einer Inspektion oder einer Überholung unterzogen wird.
Dieses Dokument darf auch zu jedem anderen Zeitpunkt angewendet werden, beispielsweise wenn die Wartung eines Ventils nötig ist.
Équipements pour GPL et leurs accessoires - Contrôle et entretien des robinets de bouteilles de GPL lors du contrôle périodique des bouteilles
Le présent document prescrit les exigences relatives au contrôle et à l'entretien des robinets de bouteilles de GPL à fermeture manuelle ou automatique destinés à être réutilisés. Il s'applique lorsque le robinet est contrôlé ou remis en état lors du contrôle périodique de la bouteille.
Le présent document peut également être appliqué à tout autre moment, par exemple lorsque l'entretien du robinet est nécessaire.
Oprema in pribor za utekočinjeni naftni plin (UNP) - Kontrola in vzdrževanje ventilov za jeklenko za UNP v času periodične kontrole jeklenk
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 14912:2021
01-marec-2021
Oprema in pribor za utekočinjeni naftni plin (UNP) - Kontrola in vzdrževanje
ventilov za jeklenko za UNP v času periodične kontrole jeklenk
LPG equipment and accessories - Inspection and maintenance of LPG cylinder valves at
time of periodic inspection of cylindersFlüssiggas-Geräte und Ausrüstungsteile - Inspektion und Wartung von Ventilen für
Flaschen für Flüssiggas (LPG) zum Zeitpunkt der wiederkehrenden Inspektion der
Flaschen
Équipements pour GPL et leurs accessoires - Contrôle et entretien des robinets de
bouteilles de GPL lors du contrôle périodique des bouteillesTa slovenski standard je istoveten z: prEN 14912
ICS:
23.020.35 Plinske jeklenke Gas cylinders
23.060.40 Tlačni regulatorji Pressure regulators
oSIST prEN 14912:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 14912:2021
DRAFT
EUROPEAN STANDARD
prEN 14912
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2021
ICS 23.060.40 Will supersede EN 14912:2015
English Version
LPG equipment and accessories - Inspection and
maintenance of LPG cylinder valves at time of periodic
inspection of cylinders
Équipements pour GPL et leurs accessoires - Contrôle Flüssiggas-Geräte und Ausrüstungsteile - Inspektion
et entretien des robinets de bouteilles de GPL lors du und Wartung von Ventilen für Flaschen für Flüssiggas
contrôle périodique des bouteilles (LPG) zum Zeitpunkt der wiederkehrenden Inspektion
der FlaschenThis draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 286.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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14912:2021 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
oSIST prEN 14912:2021
prEN 14912:2021 (E)
Contents Page
European foreword ............................................................................................................................................ 3
Introduction .......................................................................................................................................................... 4
1 Scope .......................................................................................................................................................... 5
2 Normative references .......................................................................................................................... 5
3 Terms and definitions ......................................................................................................................... 5
4 General requirements ......................................................................................................................... 6
5 Inspections .............................................................................................................................................. 7
6 Maintenance ........................................................................................................................................... 9
7 Testing .................................................................................................................................................... 10
8 Marking .................................................................................................................................................. 11
Bibliography ....................................................................................................................................................... 12
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prEN 14912:2021 (E)
European foreword
This document prEN 14912:2021 has been prepared by Technical Committee CEN/TC 286 “LPG
Equipment and Accessories”, the secretariat of which is held by NSAI.This document is currently submitted to the CEN enquiry.
This document will supersede EN 14912:2015
The main changes in comparison with the previous edition are:
— alignment with the requirement of paragraph 12 of Packing Instruction P200 of ADR;
— introduction of inspection and refurbishment requirements for pressure relief valves.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.Users are advised to develop an environmental management policy. For guidance, see the
EN ISO 14000 series ([1], [2] and [3]). Users of this document are expected to consult CEN/TS 16765
while implementing its requirements.This document has been submitted for reference in the technical annexes of the ADR [5].
NOTE These regulations take precedence over any clause of this document. It is emphasized that the ADR is
regularly revised at intervals of two years, which can lead to temporary non-compliances with the clauses of this
document.---------------------- Page: 5 ----------------------
oSIST prEN 14912:2021
prEN 14912:2021 (E)
Introduction
This document has been prepared to reflect the current methods for periodically inspecting LPG cylinder
valves, and is based upon the operating experience of millions of cylinder years of service over a period
of more than 50 years.The primary objective of the periodic inspection of transportable refillable LPG cylinder valves is that, at
the completion of the tests, the cylinder valve can be re-introduced into service for a further period of
time.The valve inspection is an integral part of the periodic inspection of an LPG cylinder.
Periodic inspections/tests are intended to be carried out by a competent person under the authorization
of an inspection body based on a written scheme of examination.Protection of the environment is a key political issue in Europe and elsewhere. For CEN/TC 286 this is
covered in CEN/TS 16765 and this Technical Specification should be read in conjunction with this
document. This Technical Specification provides guidance on the environmental aspects to be considered
regarding equipment and accessories produced for the LPG industry and the following is addressed:
a) design;b) manufacture;
c) packaging;
d) use and operation; and
e) disposal.
This document calls for the use of substances and procedures that can be injurious to health if adequate
precautions are not taken. It refers to technical suitability and does not absolve the user from legal
obligations relating to health and safety at any stage.It has been assumed in the drafting of this document that the execution of its provisions is entrusted to
appropriately qualified and experienced people.Where judgements are called for, it has been assumed that they are made by competent persons who
have been trained specifically for the tasks.---------------------- Page: 6 ----------------------
oSIST prEN 14912:2021
prEN 14912:2021 (E)
1 Scope
This document specifies the requirements for inspection and maintenance of LPG cylinder valves, either
manually operated or self-closing, for reuse. It applies when the valve is either inspected or refurbished
at the time of periodic inspection of the cylinder.This document may also be applied at any other time, for example, when maintenance of the valve is
necessary.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 ISO 14245:2019, Gas cylinders - Specifications and testing of LPG cylinder valves - Self-closing
(ISO 14245:2019)EN ISO 15995:2019, Gas cylinders - Specifications and testing of LPG cylinder valves - Manually operated
(ISO 15995:2019)ISO 2859-1:1999, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspectionEN 13953:2020, LPG equipment and accessories - Pressure relief valves for transportable refillable cylinders
for Liquefied Petroleum Gas (LPG)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:
— IEC Electropedia: available at http://www.electropedia.org/— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
liquefied petroleum gas
LPG
low pressure liquefied gas composed of one or more light hydrocarbons which are assigned to UN 1011,
UN 1075, UN 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene, butane,
butane isomers, butene with traces of other hydrocarbon gases3.2
periodic inspection
activities carried out at defined intervals, such as examining, measuring, testing or gauging the
characteristics of a pressure vessel and comparing these with specified requirements
3.3dismantling
separation into component parts
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oSIST prEN 14912:2021
prEN 14912:2021 (E)
3.4
minor repair
operations that include cleaning and replacement of components accessible without any dismantling of
the valve (e.g. outlet seal, excess flow device)3.5
refurbishment
operation that includes complete dismantling of the valve, evaluation and replacement of internal
components, and reassembly3.6
competent person
person which by combination of appropriate qualification, training, experience and resources, is able to
make objective judgments on the subject3.7
external leak tightness
resistance to leakage through the fitting to or from the atmosphere when the valve/fitting is open
3.8internal leak tightness
resistance to leakage across the valve or fitting seat or other internal sealing components
...
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