1、DEUTSCHE NORM No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).August 2005DIN EN 14452English price group 11 www.din.de
2、 www.beuth.de12.05 9659387Document comprises 15 pages.Devices to prevent pollution by backflow of potable waterPipe interrupter with atmospheric vent and moving element DN 10 to DN 20Family D, type BEnglish version of DIN EN 14452Sicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzun
3、g durch Rckflieen Rohrunterbrecher mit Lufteintrittsffnung und beweglichem Teil, DN 10 bis DN 20 Familie D, Typ BNational 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
4、 (Valves Standards Committee), Technical Committee NAA-164/4 + 7 Armaturen fr die Trinkwasserinstallation in Gebuden.AmendmentsThis standard differs from DIN 3266-1, July 1986 edition, and DIN 3266-2, December 1987 edition, as fol-lows:The standards have been completely revised, restructured and har
5、monized with standards from other Euro-pean Standardization bodies.In particular, the following modifications have been made:a) Pipe interrupters DN 10 to DN 20 have been included.b) Only design A2 has been included.c) The Marking clause has been extended to include information on technical document
6、s.d) A new service temperature has been specified.e) The Materials clause has been revised.f) The bending test has been amended.g) The minimum flow rate for testing has been specified.h) The acoustic characteristics have been included.Previous editionsDIN 3266: 1940-09, 1979-03DIN 3266-1: 1986-07DIN
7、 3266-2: 1987-12ICS 13.060.20; 23.060.50 Supersedes parts of DIN 3266-1, July 1986 edition, and DIN 3266-2, December 1987 edition.English versionICS 13.060.20; 23.060.50Management Centre: rue de Stassart, 36 B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisch
8、es Komitee fr Normung 2005. CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national members.Ref. No. EN 14452:2005 EEN 14452May 2005Devices to prevent pollution by backflow of potable waterPipe interrupter with atmospheric vent and moving element DN 10 to DN 2
9、0Family D, type BDispositifs de protection contre la pollution de leau potable par retour Rupteur vent atmosphrique avec lment mobile DN 10 DN 20 Famille D, type BSicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmut-zung durch Rckflieen Rohrunter-brecher mit Lufteintrittsffnung und be
10、weglichem Teil, DN 10 bis DN 20 Familie D, Typ BThis European Standard was approved by CEN on 2004-12-24.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
11、.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to any CEN member.The European Standards exist in three official versions (English, French, German). A version in any other language made by translation und
12、er 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, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, I
13、celand, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.Page 2 EN 14452:2005Page 3 EN 14452:2005Page 4 EN 14452:2005Page 5 EN 14452:2005Page 6 EN 14452:2005Page 7 EN 14452:2005Page 8 EN 14452:2005Page 9 EN 14452:2005Page 10 EN 14452:2005Page 11 EN 14452:2005Page 12 EN 14452:2005Page 13 EN 14452:2005Page 14 EN 14452:2005
