1、ICS 17.120.10Measurement of fluid flow by means of pressure differential devicesinserted in circular cross-section conduits running fullPart 3: Nozzles and Venturi nozzles(ISO 5167-3 : 2003)English version of DIN EN ISO 5167-3Durchflussmessung von Fluiden mit Drosselgerten in voll durchstrmten Leitu
2、ngen mit Kreis-querschnitt Teil 3: Dsen und Venturidsen (ISO 5167-3 : 2003)European Standard EN ISO 5167-3 : 2003 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been published in accordance with a decision taken by CMC to adopt, withoutalter
3、ation, International Standard ISO 5167-3 as a European Standard.The responsible German body involved in its preparation was the Normenausschuss Technische Grund-lagen (Fundamentals in Technology Standards Committee).DIN EN 24006 and DIN EN ISO 5167-1 are the standards corresponding to International
4、StandardsISO 4006 and ISO 5167-1, respectively, referred to in clause 2 of the EN.AmendmentsThis standard differs from DIN EN ISO 5167-1, November 1995 edition, in that this part deals only withnozzles and Venturi nozzles.Previous editionsDIN 1952: 1948-11, 1969-05, 1971-08, 1982-07; DIN EN ISO 5167
5、-1: 1995-11;DIN EN ISO 5167-1/A1: 1998-06.DEUTSCHE NORM January 2004DIN EN ISO 5167-3 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 Standard
6、s (DIN-Normen).This standard, together withDIN EN ISO 5167-1,DIN EN ISO 5167-2 andDIN EN ISO 5167-4, January 2004editions, supersedesDIN EN ISO 5167-1, November 1995edition.Normenausschuss Bauwesen (NABau) im DINEnglish price group 16www.din.dewww.beuth.de04.04 9549067Continued overleaf.Document com
7、prises 35 pages.National Annex NAStandards referred to(and not included in Normative references, Bibliography and Annex ZA)DIN EN 24006 Measurement of fluid flow in closed conduits Vocabulary and symbols(ISO 4006 : 1991)DIN EN ISO 5167-1 Measurement of fluid flow by means of pressure differential de
8、vices inserted in circularcross-section conduits running full Part 1: General principles and requirements(ISO 5167-1 : 2003)Page 2DIN EN ISO 5167-3 : 2004-01English versionICS 17.120.10Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de Normal
9、isationEuropisches Komitee fr NormungMeasurement of fluid flow by means of pressuredifferential devices inserted in circular cross-sectionconduits running fullPart 3: Nozzles and Venturi nozzles(ISO 5167-3 : 2003) 2003. CEN All rights of exploitation in any form and by any meansreserved worldwide fo
10、r CEN national members.Ref. No. EN ISO 5167-3 : 2003 EMesure de dbit des fluides aumoyen dappareils dprimognesinsrs dans des conduites en chargede section circulaire Partie 3:Tuyres et Venturi-tuyres(ISO 5167-3 : 2003)Durchflussmessung von Fluiden mitDrosselgerten in voll durchstrmtenLeitungen mit K
11、reisquerschnitt Teil 3: Dsen und Venturidsen(ISO 5167-3 : 2003)This European Standard was approved by CEN on 2003-02-20.CEN members are bound to comply with the CEN/CENELEC InternalRegulations which stipulate the conditions for giving this European Standardthe status of a national standard without a
12、ny alteration.Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French,German). A version in any other language made by transl
13、ation under theresponsibility of a CEN member into its own language and notified to theManagement Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland,Irel
14、and, Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Slovakia,Spain, Sweden, Switzerland, and the United Kingdom.|March 2003EN ISO 5167-3Supersedes EN ISO 5167-1 : 1995.Page 2EN ISO 5167-3 : 2003ForewordInternational StandardISO 5167-3 : 2003 Measurement of fluid flow by means of pressu
15、re differential devices inserted in circularcross-section conduits running full Part 3: Nozzles and Venturi nozzles,which was prepared by ISO/TC 30 Measurement of fluid flow in closed conduits of the InternationalOrganization for Standardization, has been adopted by CMC as a European Standard.This E
16、uropean Standard shall be given the status of a national standard, either by publication of an identical textor by endorsement, and conflicting national standards withdrawn, by September 2003 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations
17、of thefollowing countries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland, and theUnited Kingdom.
18、Endorsement noticeThe text of the International Standard ISO 5167-3 : 2003 was approved by CEN as a European Standard withoutany modification.NOTE: Normative references to international publications are listed in Annex ZA (normative).234555661216212121262627282932Page 3EN ISO 5167-3 : 2003Page 4EN I
19、SO 5167-3 : 2003Page 5EN ISO 5167-3 : 2003Page 6EN ISO 5167-3 : 2003Page 7EN ISO 5167-3 : 2003Page 8EN ISO 5167-3 : 2003Page 9EN ISO 5167-3 : 2003Page 10EN ISO 5167-3 : 2003Page 11EN ISO 5167-3 : 2003Page 12EN ISO 5167-3 : 2003Page 13EN ISO 5167-3 : 2003Page 14EN ISO 5167-3 : 2003Page 15EN ISO 5167-
20、3 : 2003Page 16EN ISO 5167-3 : 2003Page 17EN ISO 5167-3 : 2003Page 18EN ISO 5167-3 : 2003Page 19EN ISO 5167-3 : 2003Page 20EN ISO 5167-3 : 2003Page 21EN ISO 5167-3 : 2003Page 22EN ISO 5167-3 : 2003Page 23EN ISO 5167-3 : 2003Page 24EN ISO 5167-3 : 2003Page 25EN ISO 5167-3 : 2003Page 26EN ISO 5167-3 : 2003Page 27EN ISO 5167-3 : 2003Page 28EN ISO 5167-3 : 2003
