1、ICS 13.060.20; 23.060.01Devices to prevent pollution by backflow of potable waterHose union backflow preventer DN 15 to DN 32 Family H, type AEnglish version of DIN EN 14454Sicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzung durch Rckflieen Siche-rungsarmatur fr Schlauchanschlsse
2、 DN 15 bis DN 32 Familie H, Typ ANational forewordThis standard has been prepared by CEN/TC 164 Water supply (Secretariat: France).The responsible German body involved in its preparation was the Normenausschuss Armaturen (ValvesStandards Committee), Technical Committee NAA-164/4 + 7 Armaturen fr die
3、 Trinkwasserinstallation inGebuden, in collaboration with the Normenausschuss Wasserwesen (Water Practice Standards Commit-tee).DEUTSCHE NORM August 2005DIN EN 14454 No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Verlag
4、 GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Supersedes DIN 1995-3,October 1989 edition.See start of validity.English price group 12www.din.dewww.beuth.de9659421Continued overleaf.Document comprises 22 pages.12.05English versionICS 13.060.20; 23.060.
5、01Devices to prevent pollution by backflow of potable waterHose union backflow preventer DN 15 to DN 32 Family H, type A 2005. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN 14454:2005 ESicherungseinrichtungen zum Schutz -des Trinkw
6、assers gegen Verschmut-zung durch Rckflieen Sicherungs-armatur fr SchlauchanschlsseDN 15 bis DN 32 Familie H, Typ AThis European Standard was approved by CEN on 2004-12-24.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European
7、 Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French,
8、German).A version in any other language made by translation under the responsibility of aCEN member into its own language and notified to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, theCzech Republic, De
9、nmark, Estonia, Finland, France, Germany, Greece, Hungary,Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands,Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, andthe United Kingdom.EN 14454May 2005Management Centre: rue de Stassart, 36 B-1050 Bruss
10、elsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr NormungDispositifs de protection contre la pol-lution de leau potable par retour Disconnecteur dextrmit DN 15 DN 32 Famille H, type APage 2EN 14454:20052233444567892021Page 3EN 14454:2005Page 4EN 14454:2005
11、Page 5EN 14454:2005Page 6EN 14454:2005Page 7EN 14454:2005Page 8EN 14454:2005Page 9EN 14454:2005Page 10EN 14454:2005Page 11EN 14454:2005Page 12EN 14454:2005Page 13EN 14454:2005Page 14EN 14454:2005Page 15EN 14454:2005Page 16EN 14454:2005Page 17EN 14454:2005Page 18EN 14454:2005Page 19EN 14454:2005Page 20EN 14454:2005Page 21EN 14454:2005
