1、BRITISH STANDARD BS EN 1074-1:2000 Incorporating Amendment No. 1 Valves for water supply Fitness for purpose requirements and appropriate verification tests Part 1: General requirements The European Standard EN 1074-1:2000 has the status of a British Standard ICS 23.060.01; 91.140.60 BS EN 1074-1:20
2、00 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 BSI 23 December 2004 ISBN 0 580 35955 7 National foreword This British Standard is the official E
3、nglish language version of EN 1074-1:2000. Together with BS EN 1074-2:2000, BS 5163-1:2004 and BS 5163-2:2004, this part of BS EN 1074 supersedes BS 5163:1986, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PSE/7, Industrial valves, to Subcommittee P
4、SE/7/3, Cast iron isolating, check and hydrant valves for industrial use and valves for water industry applications, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Additional information To assist UK users of thi
5、s standard, Subcommittee PSE/7/7 has produced BS 5163-1, a code of practice that provides guidance on the selection of gate valves for water distribution networks within the UK. The valves discussed are primarily for underground use for waterworks purposes and for use with water intended for human c
6、onsumption in the UK. This guidance is intended to help identify the most cost-effective way to procure suitable gate valves. The code takes account of the customs and practices developed in the UK water industry for the operation of water distribution pipelines with particular attention to health a
7、nd safety matters. The BS EN 1074 series of standards does not specify requirements for stem caps, which are required to satisfy UK operational practices. PSE/7/7 has therefore produced British Standard, BS 5163-2, which covers stem caps for use on isolating valves and associated water control appar
8、atus. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalo
9、gue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand th
10、e text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a fron
11、t cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 15230 23 December 2004 National forewor
12、d amended EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1074-1 April 2000 ICS 23.060.01; 91.140.60 English version Valves for water supply Fitness for purpose requirements and appropriate verification tests Part 1: General requirements Robinetterie pour alimentation en eau Prescriptions dapti
13、tude lemploi et vrifications sy rapportant - Partie 1: Prescriptions gnrales Armaturen fr die Wasserversorgung Anforderung an die Gebrauchlichkeit und deren Prfung Teil 1: Allgemeine Anforderungen This European Standard was approved by CEN on 26 November 1999. CEN members are bound to comply with th
14、e CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a 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 o
15、r to any CEN member. This European Standard 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 vers
16、ions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
17、DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1074-1:2000 EPage 2 EN 1074-1:2000 Contents Foreword .3 Introduction.4 1
18、Scope4 2 Normative references4 3 Definitions 5 4 Design requirements.6 4.1 Materials.6 4.2 DN6 4.3 Pressures.6 4.4 Temperatures.7 4.5 Design of the shell and obturator 7 4.6 End types and interchangeability 7 4.7 Operating direction7 4.8 Maximum water velocity.7 4.9 All materials, including lubrican
19、ts, in contact with water intended for human consumption.8 4.10 Internal corrosion and ageing resistance .8 4.11 External corrosion and ageing resistance8 5 Performance requirements.8 5.1 Mechanical strength8 5.2 Leak-tightness .9 5.3 Hydraulic or airflow characteristics.10 5.4 Resistance to disinfe
20、ction products10 5.5 Endurance 10 6 Conformity assessment10 6.1 General.10 6.2 Type tests.11 6.3 Control of production process and quality system .11 7 Marking.11 8 Packaging.11 Annex A (normative) Test method for the resistance to internal pressure of the shell and of all pressure containing compon
21、ents (see 5.1.1) .12 Annex B (normative) Test method for the resistance of the obturator to differential pressure (see 5.1.2) .13 Annex C (normative) Test method for the resistance of valves to bending (see 5.1.3) .15 Annex D (normative) Minimal test method for the leak-tightness to external pressur
22、e of the shell and all pressure containing components (see 5.2.1.2) 17 Annex E (normative) Test method for the resistance to disinfection products (see 5.4) 18 Page 3 EN 1074-1:2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 69, Industrial valves, the Secretariat
23、 of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2000, and conflicting national standards shall be withdrawn at the latest by October 2000. It consists of six pa
24、rts: Part 1: General requirements Part 2: Isolating valves Part 3: Check valves Part 4: Air valves Part 5: Control valves Part 6: Hydrants Part 1, in conjunction with the subsequent parts, lays down the general requirements and test procedures to be carried out in production and during the assessmen
25、t of conformity of these valves (type tests). The detailed requirements, which depend on the types of valves, are defined in parts 2 to 6 of this standard. The annexes A, B, C, D and E of this European Standard are normative. According to the CEN/CENELEC Internal Regulations, the national standards
26、organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 4 EN 1074-1
27、:2000 Introduction In respect of potential adverse effects on the quality of water intended for human consumption caused by the product covered by this standard: 1) This standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU o
28、r EFTA. 2) It should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. 1 Scope This European Standard defines the minimum fitness for purpose requirements for valves
29、 to be used in, or connected to, water supply pipe systems, above or below ground (see EN 805), carrying water intended for human consumption. This standard specifies the general design requirements, the performance requirements and the conformity assessment method for valves, whatever their type an
30、d materials. This standard deals with the requirements that are common to several types of valves; it is applicable only when quoted as reference in one of the other parts of this standard. 2 Normative references This European Standard incorporates, by dated or undated references, provisions from ot
31、her publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment o
32、r revision. For undated references the latest edition of the publication referred to applies. EN 558-1, Industrial valves - Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems - Part 1: PN - designated valves. EN 681-1, Elastomeric seals - Material requirements
33、 for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber. EN 736-2, Valves - Terminology - Part 2: Definition of components of valves. EN 1092-2, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iro
34、n flanges. EN 1333, Pipework components - Definition and selection of PN. EN 12627, Industrial valves - Butt welding ends for steel valves. EN 12982, Industrial valves End-to-end and centre-to-end dimensions for butt welding end valves. EN 45012, General requirements for bodies operating assessment
35、and certification/registration of quality systems (ISO/IEC Guide 62:1996). EN 60529, Degrees of protection afforded by the shells (IP code). Page 5 EN 1074-1:2000 prEN 19:1999, Industrial valves Marking. EN 805, Water supply - Requirements for systems and components outside buildings. prEN 1092-1:19
36、97, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories - PN designated - Part 1: Steel flanges. prEN 1092-3:1994, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories - Part 3: Copper alloy and composite flanges, PN designated.
37、prEN 1092-4:1995, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 4: Aluminium alloy flanges. prEN 12266-1:1999, Industrial valves - Testing of valves - Part 1: Tests, test procedures and acceptance criteria to be fulfilled by every valve
38、. EN ISO 6708, Pipework components - Definition and selection of DN (nominal size) (ISO 6708:1995). EN ISO 9002, Quality systems - Model for quality assurance in production, installation and servicing (ISO 9002:1994). ISO TR 9080, Thermoplastics pipes for the transport of fluids - Methods of extrapo
39、lation of hydrostatic stress rupture data to determine the long-term hydrostatic strength of thermoplastics pipe materials. 3 Definitions For the purpose of this standard, the following definitions apply: 3.1 maximum operating torque (MOT): Higher limit fixed for the torque which, when applied at th
40、e entrance point of the mechanical energy, will operate the valve and ensure compliance with the required leakage rate. 3.2 minimum strength torque (mST): Lower limit fixed for the torque which, when applied at the entrance point of the mechanical energy, with the obturator either totally open or to
41、tally closed, causes no alteration to the functional capability of the valve. 3.3 entrance point of the mechanical energy: Point where the load (torque) is applied in order to open or close the valve obturator in its delivery condition; it may be the end of the stem, or the input shaft of the reduce
42、r when the reducer is an integral part of the valve. 3.4 type test: Test to prove that the design meets the corresponding performance requirements. 3.5 operating mechanism: Mechanism which translates the motion of the operating device to the motion of the obturator (EN 736-2). 3.6 operating device:
43、Manual or power operated device used to operate the bare valve (EN 736-2). 3.7 operating element: Component of the operating device by which the mechanical power is introduced (EN 736-2). 3.8 DN: Alphanumeric designation of the size of pipework components used for reference purposes. It comprises th
44、e letters DN followed by a dimensionless round number which is loosely related to the effective dimensions, in millimetres, of the bore or external diameter of the end connections (EN ISO 6708). 3.9 PN: Alphanumeric designation used for reference purposes and related to a combination of mechanical a
45、nd dimensional characteristics of a component of a pipe system. It comprises the letters PN followed by a dimensionless number (EN 1333). 3.10 PFA, allowable operating pressure: Maximum hydrostatic pressure that a component is capable of withstanding continuously in service (EN 805). Page 6 EN 1074-
46、1:2000 3.11 PMA, maximum allowable pressure: Maximum pressure occurring from time to time, including surge, that a component is capable of withstanding in service (EN 805). 3.12 PEA, allowable site test pressure: Maximum hydrostatic pressure that a newly installed component is capable of withstandin
47、g for a relatively short duration, in order to ensure integrity and tightness of the pipeline (EN 805). 4 Design requirements 4.1 Materials 4.1.1 Components and coating materials Components and coating materials shall be selected from those conforming to the relevant standards, if any; they shall al
48、so conform to 4.9, 4.10 and 4.11, alone or in combination with coating materials. 4.1.2 Elastomers Elastomers shall comply with EN 681-1 and also, with the requirements of clause 4.9. 4.2 DN DNs shall be selected from those given in EN 805, with an upper limit of DN 2000. The manufacturer shall indi
49、cate whether the DNs are from the DN/ID series or from the DN/OD series. 4.3 Pressures Valves intended for water systems come under the PN designation and shall be designed in such a way that their characteristic pressures PFA, PMA and PEA, conform to table 1 for the corresponding PN (see also 4.4). Table 1 - Pressures PN PFA abar PMA a bar PEA b bar 6 6 8 12 10 10 12 17 16 16 20 25 25 25 30 35 aPFA and PMA apply to valves in all positions from fully closed to fully open. bPEA onl
