Automatic change-over valves having a maximum outlet pressure of up to and including 4 bar with a capacity of up to and including 100 kg/h, and their associated safety devices for butane, propane or their mixtures

This European standard defines the constructional and operational characteristics, the safety requirements and test methods, and the marking of automatic change over devices with a capacity of less than or equal to 100 kg/h and having a maximum regulated pressure of less than or equal to 4 bar for butane, propane or their mixtures only in the vapour phase.
NOTE 1 bar = 105 Pa
Liquefied gases containing methylacetylene and propadiene are not covered by this standard. This European standard also covers safety devices likely to be fitted onto automatic change over devices. The characteristics of these devices are given in
annex A.

Automatische Umschaltventile mit einem höchsten Ausgangsdruck bis einschließlich 4 bar und einem Durchfluss bis einschließlich 100 kg/h für Butan, Propan oder deren Gemische sowie die dazugehörigen Sicherheitseinrichtungen

Inverseurs automatiques de débit inférieur ou égal à 100 kg/h, à pression de détente nominale maximale inférieure ou égale à 4 bar, et leurs dispositifs de sécurité associés, pour butane, propane ou leurs mélanges

Samodejni preklopni ventili z največjim izhodnim tlakom do vključno 4 bar, s pretokom do vključno 100 kg/h in pripadajočimi varnostnimi napravami za butan, propan ali njuni zmesi - Dopolnilo A1

General Information

Status
Not Published
Current Stage
5060 - Closure of Vote - Formal Approval
Start Date
26-Aug-2008
Due Date
24-Mar-2008
Completion Date
26-Aug-2008

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EN 13786:2004/oprA1:2006
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SLOVENSKI SIST EN
13786:2004/oprA1:2006

PREDSTANDARD
julij 2006
Samodejni preklopni ventili z največjim izhodnim tlakom do vključno 4 bar, s
pretokom do vključno 100 kg/h in pripadajočimi varnostnimi napravami za
butan, propan ali njuni zmesi - Dopolnilo A1
Automatic change-over valves having a maximum outlet pressure of up to and
including 4 bar with a capacity of up to and including 100 kg/h, and their associated
safety devices for butane, propane or their mixtures - Amendment A1
ICS 23.060.20 Referenčna številka
SIST EN 13786:2004/oprA1:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD
DRAFT
EN 13786:2004
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
May 2006
ICS

English Version
Automatic change-over valves having a maximum outlet
pressure of up to and including 4 bar with a capacity of up to
and including 100 kg/h, and their associated safety devices for
butane, propane or their mixtures
Inverseurs automatiques de débit inférieur ou égal à 100 Automatische Umschaltventile mit einem höchsten
kg/h, à pression de détente nominale maximale inférieure Ausgangsdruck bis einschließlich 4 bar und einem
ou égale à 4 bar, et leurs dispositifs de sécurité associés, Durchfluss bis einschließlich 100 kg/h für Butan, Propan
pour butane, propane ou leurs mélanges oder deren Gemische sowie die dazugehörigen
Sicherheitseinrichtungen
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 181.
This draft amendment A1, if approved, will modify the European Standard EN 13786:2004. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment 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 Management Centre has the same status
as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland 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
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13786:2004/prA1:2006: E
worldwide for CEN national Members.

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EN 13786:2004/prA1:2006 (E)
Foreword
This document (EN 13786:2004/prA1:2006) has been prepared by Technical Committee CEN/TC 181
“Dedicated liquefied petroleum gas appliances”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document has been elaborated mainly in order to :
- address the comments received during the formal vote on EN 13786:2004 and that was not taken into account
in the published version;
- take into account evolution of other standards written by CEN/TC 181WG8 (EN 12864, EN 13785 and their
amendments);
- include new CEN Members.
This document modifies or completes relevant clauses of EN 13786:2004, only the modified or completed
clauses are mentioned.
2

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EN 13786:2004/prA1:2006 (E)
2. Normative references
Add the following normative references
EN 12164, Copper and copper alloys - Rod for free machining purposes
EN 12165, Copper and copper alloys - Wrought and unwrought forging stock
EN ISO 7253, Paints and varnishes - Determination of resistance to neutral salt spray (fog)

3.3.4
lockout pressure
Replace the title lockout pressure by lock up pressure and everywhere in the standard.
For English version only.
5.3.2 Regulation subassembly
Replace the last paragraph by the following :
"After the test defined in 7.2.3, the valve, as defined in 3.1.7, shall not be displaced or come out of its
housing."
5.3.4 Connection subassembly
Replace the two first paragraphs by the followings :
"Automatic change over devices shall be fitted with an inlet filter. The filter shall be made of a cor
...

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