oSIST prEN 14912:2021

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

Équipements pour GPL et leurs accessoires - Contrôle et entretien des robinets de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

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

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

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14912:2021 E

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

This document prEN 14912:2021 has been prepared by Technical Committee CEN/TC 286 “LPG

— 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

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

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

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

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

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

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:

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

It has been assumed in the drafting of this document that the execution of its provisions is entrusted to

Where judgements are called for, it has been assumed that they are made by competent persons who

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

This document may also be applied at any other time, for example, when maintenance of the valve is

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

EN ISO 15995:2019, Gas cylinders - Specifications and testing of LPG cylinder valves - Manually operated

ISO 2859-1:1999, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by

EN 13953:2020, LPG equipment and accessories - Pressure relief valves for transportable refillable cylinders

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

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,

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

operations that include cleaning and replacement of components accessible without any dismantling of

operation that includes complete dismantling of the valve, evaluation and replacement of internal

person which by combination of appropriate qualification, training, experience and resources, is able to

resistance to leakage through the fitting to or from the atmosphere when the valve/fitting is open

resistance to leakage across the valve or fitting seat or other internal sealing components