SIST EN 12334:2001/A1:2004

SLOVENSKI STANDARD
01-november-2004
Industrijski ventili - Litoželezni protipovratni ventili
Industrial valves - Cast iron check valves
Industriearmaturen - Rückflussverhinderer aus Gusseisen
Robinetterie industrielle - Clapets de non-retour en fonte
Ta slovenski standard je istoveten z: EN 12334:2001/A1:2004
ICS:
23.060.50
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 12334:2001/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2004
ICS 23.060.50
English version
Industrial valves - Cast iron check valves
Robinetterie industrielle - Clapets de non-retour en fonte Industriearmaturen - Rückflussverhinderer aus Gusseisen
This amendment A1 modifies the European Standard EN 12334:2001; it was approved by CEN on 27 May 2004.
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. Up-to-date lists and bibliographical references concerning such
national standards may be obtained on application to the Central Secretariat or to any CEN member.
This amendment 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 Central Secretariat 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, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12334:2001/A1:2004: E
worldwide for CEN national Members.

Foreword
This document (EN 12334:2001/A1:2004) has been prepared by Technical Committee CEN/TC 69 “Industrial
valves”, the secretariat of which is held by AFNOR.
This Amendment to the European Standard EN 12334 shall be given the status of a national standard, either by
publication of an identical text or by endorsement, at the latest by February 2005, and conflicting national standards
shall be withdrawn at the latest by February 2005
This document has been prepared under a mandate given to CEN by the European Commission and the European
Free Trade Association, and supports essential requirements of EU Directive(s).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to. implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
4.1.1.1
Replace by:
"4.1.1.1 The body and cover (if any) materials shall be selected from Table 1. The limits of use given in the
material standard shall be taken into account. See 4.1.2.1 and 4.2.1."

4.1.2.1
Replace by:
"4.1.2.1 The pressure/temperature ratings shall be in accordance with EN 1092-2 for the equivalent ISO
material grade and are not for conditions of hydraulic or external shock likely to cause brittle fracture.
Annex B should be used to determine the equivalent ISO material grade for the EN material grades specified in
Table 1
...