1、BS EN 16480:2016Pumps Minimum requiredefficiency of rotodynamicwater pumpsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 16480:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16480:2016.The UK participation in its pre
2、paration was entrusted to TechnicalCommittee MCE/6, Pumps and pump testing.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapp
3、lication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 86095 9ICS 23.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committe
4、e on 31 May 2016.Amendments issued since publicationDate Text affectedBS EN 16480:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16480 May 2016 ICS 23.080 English Version Pumps - Minimum required efficiency of rotodynamic water pumps Pompes - Rendement minimum requis des pompes eau rotodyn
5、amiques Pumpen - Geforderte Mindesteffizienz bei Kreiselpumpen fr Wasser This European Standard was approved by CEN on 4 March 2016. 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 sta
6、ndard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in
7、any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Re
8、public, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEA
9、N COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16480:2016 EBS EN 1
10、6480:2016EN 16480:2016 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 7 2 Normative references 8 3 Terms and definitions . 8 3.1 General 8 3.2 List of quantities with definitions . 8 3.3 Lists of basic letters and subscripts . 10 3.4 General definitions 12 4 Minimum Required Effici
11、encies and Minimum Efficiency Index 14 4.1 The concept of “house of efficiency” 14 4.2 Mathematical representation of minimum required efficiency . 15 4.3 Minimum efficiency at part load and overload . 16 4.4 Minimum Efficiency Index 17 5 Determination of the Efficiency of a Test Pump 20 5.1 General
12、 . 20 5.2 Test Procedures 20 5.3 Test conditions 21 5.4 Measuring uncertainties 22 5.5 Evaluation of test data 24 6 Proving the Minimum Efficiency Index of a pump size . 29 6.1 General remarks . 29 6.2 Determination of the Minimum Efficiency Index of a pump size 30 7 Verification of the Minimum Effi
13、ciency Index for a pump size 31 7.1 General remarks . 31 7.2 Procedure and decision . 31 Annex A (normative) Pump types in scope 35 Annex B (informative) General remarks on the efficiency of rotodynamic pumps 37 Annex C (informative) Mean Values of a Size Relevant for its Minimum Efficiency Index .
14、39 Annex D (informative) Methods recommended for manufacturers to determine the mean values of hydraulic quantities of a size relevant for MEI . 44 D.1 General remarks . 44 D.2 Determination of the mean efficiency of a pump size from a test on one single test pump . 44 D.3 Determination of the mean
15、efficiency of a pump size from a sample of M test pumps. 46 Annex E (informative) Numerical example 49 Annex F (informative) Application of mathematical statistics on tests 54 F.1 Purposes of applying statistics in the frame of qualification and verification 54 F.2 Confidence interval . 55 BS EN 164
16、80:2016EN 16480:2016 (E) 3 F.3 Law of error propagation . 57 F.4 Numerical example 57 Annex G (informative) Measurement uncertainties . 64 G.1 General remarks . 64 G.2 Determination of the overall measurement uncertainty of efficiency 66 Annex H (informative) Explanations concerning the methodology
17、of the verification procedure and the probability of the results . 68 Annex I (informative) Reporting of Test Results 71 I.1 Test Report Requirements 71 I.2 Pump test sheet . 71 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2009/125
18、/EC, establishing a framework for the setting of ecodesign requirements of energy related products and implemented by the European Commission Regulation (EU) No. 547/2012 . 73 Bibliography . 74 BS EN 16480:2016EN 16480:2016 (E) 4 European foreword This document (EN 16480:2016) has been prepared by T
19、echnical Committee CEN/TC 197 “Pumps - Minimum required efficiency of rotodynamic water pumps”, the secretariat 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 November
20、2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent ri
21、ghts. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2009/125/EC. For relationship with EU Directive 2009/125/EC, see informative Annex ZA, which is an integral part
22、of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Mace
23、donia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16480:2016EN 16480:2016 (E) 5 Introduction Purpose and content
24、of the standard The water pumps within the scope of this European Standard are typically produced and sold by pump manufacturers as series of large to very large numbers. The performance characteristics of pumps of one size produced by a manufacturer show some scatter caused by manufacturing toleran
25、ces, but are described by mean values and curves which represent that size. The total consumption of electric energy by water pumps installed in applications within the scope of this European Standard depends on the total number of installed pumps of each size and on its mean efficiency. The quality
26、 of a size in respect to its mean efficiency is quantitatively described by the Minimum Efficiency Index (MEI) which is defined and used in this standard. To achieve a certain value of the Minimum Efficiency Index (MEI), a corresponding minimum value of the mean efficiency of a size is required. Thi
27、s European Standard defines for each pump type and size within the scope of the standard - the minimum required value of efficiency depending on the value of the Minimum Efficiency Index (MEI). Also, this standard prescribes how the value of the Minimum Efficiency Index (MEI) of a pump size indicate
28、d by the manufacturer can be verified by an independent institution (e.g. in the frame of market surveillance). For the manufacturer of the pump size it is generally left free how to prove the indicated value of the Minimum Efficiency Index (MEI) of a size. Nevertheless, this standard describes also
29、 a method to prove by the manufacturer that the mean values of efficiency meet the requirements for indicating a certain value of the Minimum Efficiency Index (MEI). Normally, the qualification of a pump size for a certain MEI value done by the manufacturer will be based on tests and evaluations mad
30、e on a sample of pumps of this size. It is essential that tests and evaluations carried out for the purpose of qualifying the corresponding size fulfil certain requirements: From the tests on the sample pumps, it becomes possible to predict for the corresponding size the confidence intervals within
31、which the true mean values of efficiencies which are relevant for the qualification are enclosed with a sufficiently high probability. Only in that way, the qualification of the size in respect to a required and/or indicated value of Minimum Efficiency Index (MEI) will make sure that the aspired eff
32、ect of energy saving will be reached. If a pump size has been qualified according to the criteria described in this European Standard, every test on one or more test pump(s) of the same size (with a full impeller diameter) which is carried out in the frame of a verification procedure shall result wi
33、th a very high probability in a confirmation of the qualification. Caused by technical alignment procedures of the single pump components, e.g. bearings or shaft seals, the performance of the pump is gained after a certain running-in time. Ways to prove and to verify the Minimum Efficiency Index (ME
34、I) of a pump size This European Standard describes different ways how manufacturers can achieve the qualification of a pump size for a certain value of the Minimum Efficiency Index (MEI) and how this qualification can be verified by an independent institution. For the manufacturer, it is generally l
35、eft free to choose and apply appropriate methods to prove that the mean efficiency values of a size are at least equal to or higher than particular threshold values of efficiency. These particular threshold values of efficiency are related to the value of the Minimum Efficiency Index (MEI) to be ind
36、icated for the size. The way to determine these values of efficiency is described in this standard. If the way chosen by the manufacturer to prove the MEI value of a size deviates from the way mentioned in the next paragraph, the manufacturer has to document all tests, evaluations and/or calculation
37、s which are carried out and the methods which are applied to prove the justification of the indicated MEI value. BS EN 16480:2016EN 16480:2016 (E) 6 If the manufacturer decides to determine the mean performance values of the size by one of the methods described in Annex D of this standard, he has to
38、 carry out tests according to the requirements given in Annex C of this standard and evaluations as described in Annex C of this standard and to prove as described in Clause 7 of this standard that the criteria for the achievement of a certain value of the Minimum Efficiency Index (MEI) of the size
39、are fulfilled. The test conditions, the results of test evaluation and the fulfilment of the criteria are documented and stored. The time period to keep documentation available for the authorities to prove conformity is fixed by the legal text. The independent institution carries out tests on pumps
40、of the size in question according to the requirements given in 5.2 to 5.4 of this standard as well as evaluations as described in 5.5 of this standard and applies the methodology and procedure described in Clause 4 of this standard. For an independent institution, two ways are possible and specified
41、 by this standard to verify the value of Minimum Efficiency Index (MEI) indicated by the manufacturer: a) If the documentation of the qualification is presented by the manufacturer to the independent institution on request, the procedure of verification executed by the independent institution is bas
42、ed on the documentation of tests and evaluations done and documented by the manufacturer. In this case, the documentation will be checked by the independent institution in respect to being in accordance with requirements and criteria given in this standard. b) If no documentation is presented by the
43、 manufacturer on request or if the documentation presented by the manufacturer on request is not accepted as proof of the indicated value of MEI, the independent institution carries out tests on pumps of the size in question according to the requirements given in Annex C of this standard as well as
44、evaluations as described in 5.5 of this standard and applies the methodology and procedure described in Clause 4 of this standard. Relevance of Sections of this standard for manufacturers or independent institutions Clause 4 describes nominal values of minimum required efficiency for a certain value
45、 of the Minimum Efficiency Index (MEI) and is generally relevant when applying this standard. Clause 5 specifies test procedures, test conditions and evaluations and has to be applied by a manufacturer in the case that he decides to determine mean values of a size by tests on sample pumps of this si
46、ze (e.g. by methods described in Annex D), by an independent institution in the case that the Minimum Efficiency Index (MEI) of a pump size shall be verified by the procedure described in Clause 7. Clause 6 describes the procedure to be applied by a manufacturer in order to determine particular thre
47、shold values of efficiency for a certain value of the Minimum Efficiency Index (MEI) of a size and to prove the justification of this MEI value by the fulfilment of criteria for the mean efficiency values. Clause 7 describes the methodology and procedure to be applied by an independent institution i
48、n the case that the Minimum Efficiency Index (MEI) of a size indicated by the manufacturer shall be verified by third party tests on pumps of this size. Annex C is concerned with mean values of a pump size which are relevant for manufacturers to prove that a pump size achieves a certain value of the
49、 Minimum Efficiency Index (MEI). BS EN 16480:2016EN 16480:2016 (E) 7 1 Scope This European Standard specifies performance requirements (methods and procedures for testing and calculating) for determining the Minimum Efficiency Index (MEI) of rotodynamic glanded water pumps for pumping clean water, including where integrated in other products. The pump types and sizes covered by this standard are described in the Annex A. These pumps are designed and produced as duty pumps for pressures up to 16 bar for end suction pumps and up to 25 bar for multistage pumps, tem
