1、ICS 23.060.01Valves for water supplyFitness for purpose requirements and appropriate verification testsPart 2: Isolating valves(includes Amendment A1 : 2004)English version of DIN EN 1074-2 : 2000 + A1 : 2004Armaturen fr die Wasserversorgung Anforderungen an die Gebrauchstauglichkeit und deren Prfun
2、g Teil 2: Absperrarmaturen (enthlt nderung A1 : 2004)European Standard EN 1074-2 : 2000 + Amendment A1 : 2004 has the status of aDIN Standard.A comma is used as the decimal marker.National forewordThis standard has been prepared by CEN/TC 69 Industrial valves (Secretariat: France).The responsible Ge
3、rman body involved in its preparation was the Normenausschuss Armaturen (ValvesStandards Committee), Technical Committee Industriearmaturen fr die Wasserversorgung.AmendmentsThis standard differs from the July 2000 edition in that Annex C has been revised.Previous editionDIN EN 1074-2: 2000-07.DEUTS
4、CHE NORM July 2004DIN EN 1074-2 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).Normenausschuss Bauwesen (NABau) im DIN
5、English price group 10www.din.dewww.beuth.de10.04 9580304Continued overleaf.Document comprises 14 pages.SupersedesJuly 2000 edition.English versionICS 23.060.01 Supersedes EN 1074-2 : 2000.Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de No
6、rmalisationEuropisches Komitee fr NormungValves for water supplyFitness for purpose requirements and appropriate verification testsPart 2: Isolating valves(includes Amendment A1 : 2004) 2004. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref.
7、No. EN 1074-2 : 2000 + A1 : 2004 ERobinetterie pour lalimentation eneau Prescriptions daptitude lem-ploi et vrifications sy rapportant Partie 2: Robinetterie de sectionne-ment (amendement A1 : 2004 inclus)Armaturen fr die Wasserversorgung Anforderungen an die Gebrauchs-tauglichkeit und deren Prfung
8、Teil 2:Absperrarmaturen (enthlt nderungA1 : 2004)This European Standard was approved by CEN on 1999-11-26 and Amendment A1on 2004-02-27.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational st
9、andard without any 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 languag
10、e 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,the Czech Republic, Denmark, Estonia, Finland, France, Germa
11、ny, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, theNetherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,Switzerland, and the United Kingdom.April 2000EN 1074-2April 2004+ A1Page 2EN 1074-2 : 2000 + A1 : 2004ContentsPageForeword to EN 1074-2 : 20
12、00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Foreword to EN 1074-2 : 2000/A1 : 2004 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Introduction . . . . . . .
13、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14、. . . . . 42 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15、 . . . . . . . . . . . . . . . . 44 Design requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Performance requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . . . . . . . . . . . . 55.1 Mechanical strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.1.1 Resistance to internal pressure of the shell and of all pressure-containing components . . . .
17、 . . . . . 55.1.2 Resistance of the obturator to differential pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.1.3 Resistance of the valve to bending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.
18、1.4 Resistance of valves to operating loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65.2 Leak-tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、. . 65.2.1 Leak-tightness of the shell and of all pressure-containing components . . . . . . . . . . . . . . . . . . . . . . . 65.2.2 Seat tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65.2.3 Maxi
20、mum operating torque (MOT) for operation and leak-tightness . . . . . . . . . . . . . . . . . . . . . . . . . . 65.2.4 Leak-tightness of gearboxes to external pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75.3 Hydraulic characteristics . . . . . . . . . .
21、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75.4 Resistance to disinfection products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75.5 Endurance . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Conformity assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86.1 General . . . . . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86.2 Type tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、 . . . 86.3 Control of production process and quality system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、. . . . . . 88 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Annex A (normative) Test method for the resistance of valves to operating loads (see 5.1.4) . . . . . . . . . 10Annex B (n
26、ormative) Torque requirements for gate valves to be operated by ring key and bar(see 5.2.3 and Annex A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Annex C (normative) Test method for the operation of valves (see 5.2.3) . . . . . . . . . . . . .
27、. . . . . . . . . . . . 12Annex D (normative) Test method for the endurance of valves (see 5.5) . . . . . . . . . . . . . . . . . . . . . . . . . . 13Page 3EN 1074-2 : 2000 + A1 : 2004Foreword to EN 1074-2 : 2000This European Standard has been prepared by Technical Committee CEN/TC 69 Industrial val
28、ves, the Sec-retariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, and conflicting national standards withdrawn, by October 2000 at the latest.It consists of six Parts:Part 1: General r
29、equirementsPart 2: Isolating valvesPart 3: Check valvesPart 4: Air valvesPart 5: Control valvesPart 6: HydrantsPart 1, in conjunction with the subsequent Parts, lays down the general requirements and test procedures tobe carried out in production and during the assessment of conformity of these valv
30、es (type tests). The detailedrequirements, which depend on the types of valves, are defined in Parts 2 to 6 of this standard.Annexes A, B, C and D of this European Standard are normative.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing c
31、ountries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.Foreword to EN 1074-2 : 2000/A1 : 2004This
32、 amendment to EN 1074-2 : 2000 has been prepared by Technical Committee CEN/TC 69 Industrialvalves, the Secretariat of which is held by AFNOR.This amendment shall be given the status of a national standard, either by publication of an identical text or byendorsement, and conflicting national standar
33、ds withdrawn, by October 2004 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing countries are bound to implement this European Standard:Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany
34、, Greece, Hungary,Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal,Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.Page 4EN 1074-2 : 2000 + A1 : 2004Page 5EN 1074-2 : 2000 + A1 : 2004Page 6EN 1074-2 : 2000 + A1 : 2004Page 7EN 1074-2 : 2000 + A1 : 2004Page 8EN 1074-2 : 2000 + A1 : 2004Page 9EN 1074-2 : 2000 + A1 : 2004Page 10EN 1074-2 : 2000 + A1 : 2004Page 11EN 1074-2 : 2000 + A1 : 2004Page 12EN 1074-2 : 2000 + A1 : 2004Page 13EN 1074-2 : 2000 + A1 : 2004
