EN 16480:2016
(Main)Pumps - Minimum required efficiency of rotodynamic water pumps
Pumps - Minimum required efficiency of rotodynamic water pumps
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, temperatures between -10 °C and +120 °C and 4" or 6" size for submersible multistage pumps at operating temperatures within a range of 0 °C and 90 °C.
In addition, this standard specifies how the value of the Minimum Efficiency Index (MEI) of a pump size indicated by the manufacturer can be checked by market surveillance.
Even if it is left free to the manufacturer of a pump size how to prove the rated value of the Minimum Efficiency Index (MEI), nevertheless this standard specifies a method to prove that this rated value meets the requirements within the confidence intervals with a sufficiently high probability.
Pumpen - Geforderte Mindesteffizienz bei Kreiselpumpen für Wasser
Diese Europäische Norm legt Leistungsanforderungen (Methoden und Verfahren zur Prüfung und Berechnung) zur Bestimmung des Mindest-Effizienzindex (MEI) von Wasserpumpen in Kreiselpumpenbauart mit Stopfbuchsen zum Pumpen von sauberem Wasser einschließlich von Produkten, in welche diese Pumpen integriert sind, fest.
Die Pumpentypen und Pumpengrößen, die von dieser Norm abgedeckt sind, werden im Anhang A beschrieben. Diese Pumpen werden als Pumpen für Drücke bis 16 bar bei Pumpen mit axialem Eintritt und bis 25 bar bei mehrstufigen Pumpen für Temperaturen zwischen -10 °C und +120 °C und mehrstufigen Tauchpumpen der Größe 4" oder 6" bei Betriebstemperaturen in einem Bereich zwischen 0 °C und 90 °C ausgelegt und hergestellt.
Darüber hinaus legt diese Norm fest, wie der durch den Hersteller angegebene Wert des Mindest-Effizienzindex (MEI) einer Pumpengröße durch die Marktüberwachung verifiziert werden kann.
Selbst wenn es dem Hersteller einer Pumpengröße überlassen wird zu entscheiden, wie der Bemessungswert des Mindest-Effizienzindex (MEI) nachgewiesen wird, legt diese Norm dennoch ein Verfahren zum Nachweis fest, dass dieser Bemessungswert die Anforderungen innerhalb der Vertrauensintervalle mit einer ausreichend hohen Wahrscheinlichkeit erfüllt.
(...)
Pompes - Rendement minimum requis des pompes à eau rotodynamiques
La présente Norme européenne spécifie les exigences de performance (méthodes et modes opératoires d’essais et de calculs) pour la détermination de l’indice de rendement minimal (MEI) des pompes à eau rotodynamiques dotées d’un dispositif d’étanchéité employées pour pomper de l’eau propre, y compris les pompes intégrées dans d’autres produits.
Les types et les gammes de pompe visés par la présente norme sont décrits dans l’Annexe A. Ces pompes sont conçues et fabriquées comme des pompes de service pour des pressions inférieures ou égales à 16 bar pour les pompes à aspiration en bout et inférieures ou égales à 25 bar pour les pompes multi-étagées, des températures entre -10 °C et +120 °C et un dimensionnement de 10,16 cm (4"") ou 15,24 cm (6"") pour les pompes submersibles multi-étagées à des températures de fonctionnement comprises entre 0 °C et 90 °C.
De plus, la présente norme spécifie la méthode suivant laquelle une autorité de surveillance du marché peut vérifier la valeur de l’indice de rendement minimal (MEI) d'une gamme de pompe indiqué par le fabricant.
Même si le fabricant d’une gamme de pompe est libre de choisir la méthode lui permettant de prouver la valeur nominale de l’indice de rendement minimal (MEI), la présente norme spécifie néanmoins une méthode permettant de prouver que cette valeur nominale satisfait aux exigences dans l’intervalle de confiance avec une probabilité suffisamment élevée.
Črpalke - Minimalna zahtevana učinkovitost centrifugalnih vodnih črpalk
Ta evropski standard vključuje tesnilne vodne črpalke za črpanje čiste vode, vključno z vgrajenimi črpalkami v ostalih proizvodih. Črpalke, zasnovane in izdelane kot črpalke z nizko porabo za tlake do 16 barov pri sesalnih vodnih črpalkah in do 25 barov pri večstopenjskih črpalkah ter za temperature med –10 in 120 °C za čisto vodo pri vseh vrstah materialov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2016
ýUSDONH0LQLPDOQD]DKWHYDQDXþLQNRYLWRVWFHQWULIXJDOQLKYRGQLKþUSDON
Pumps - Minimum required efficiency of rotodynamic water pumps
Pumpen - Geforderte Mindesteffizienz bei Kreiselpumpen für Wasser
Pompes - Rendement minimum requis des pompes à eau rotodynamiques
Ta slovenski standard je istoveten z: EN 16480:2016
ICS:
23.080 ýUSDONH Pumps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 16480
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2016
EUROPÄISCHE NORM
ICS 23.080
English Version
Pumps - Minimum required efficiency of rotodynamic
water pumps
Pompes - Rendement minimum requis des pompes à Pumpen - Geforderte Mindesteffizienz bei
eau rotodynamiques Kreiselpumpen für 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 standard 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 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 Republic, 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 and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR 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 Ref. No. EN 16480:2016 E
worldwide for CEN national Members.
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 Efficiencies 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 . 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 Efficiency 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 . 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 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
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 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/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
European foreword
This document (EN 16480:2016) has been prepared by Technical 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 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
rights.
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 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 Macedonia,
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.
Introduction
Purpose and content 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 tolerances, 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 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.
This 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
indicated 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 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 made 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 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 effect 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 with 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 t
...
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