{"id":265062,"date":"2024-10-19T17:40:46","date_gmt":"2024-10-19T17:40:46","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-164802016\/"},"modified":"2024-10-25T13:36:05","modified_gmt":"2024-10-25T13:36:05","slug":"bs-en-164802016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-164802016\/","title":{"rendered":"BS EN 16480:2016"},"content":{"rendered":"

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.<\/p>\n

The pump types and sizes covered by this standard are described in the Annex A<\/span>. 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 \u00b0C and +120 \u00b0C and 4\u201d or 6\u201d size for submersible multistage pumps at operating temperatures within a range of 0 \u00b0C and 90 \u00b0C.<\/p>\n

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.<\/p>\n

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.<\/p>\n

[Image removed.]<\/i><\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nContents Page <\/td>\n<\/tr>\n
6<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
Figure 1 \u2014 Scheme of application of this standard <\/td>\n<\/tr>\n
10<\/td>\n2 Normative references
3 Terms and definitions
3.1 General
3.2 List of quantities with definitions <\/td>\n<\/tr>\n
12<\/td>\n3.3 Lists of basic letters and subscripts
Table 1 \u2014 Alphabetical list of basic letters used as symbols <\/td>\n<\/tr>\n
13<\/td>\nTable 2 \u2014 List of letters and figures used as subscripts <\/td>\n<\/tr>\n
14<\/td>\n3.4 General definitions <\/td>\n<\/tr>\n
16<\/td>\n4 Minimum Required Efficiencies and Minimum Efficiency Index
4.1 The concept of \u201chouse of efficiency\u201d <\/td>\n<\/tr>\n
17<\/td>\nFigure 2 \u2014 ‘House of Efficiency’ – explanatory representation
4.2 Mathematical representation of minimum required efficiency <\/td>\n<\/tr>\n
18<\/td>\n4.3 Minimum efficiency at part load and overload <\/td>\n<\/tr>\n
19<\/td>\n4.4 Minimum Efficiency Index
Table 3 \u2014 Values of the constant C for different values of the Minimum Efficiency Index (MEI) <\/td>\n<\/tr>\n
20<\/td>\nFigure 3 \u2014 Two-dimensional representation of \u03b7BEP = f (ns,QBEP) for ESOB, n= 2 900 min-1 and MEI = 0,70 (see Table 3) <\/td>\n<\/tr>\n
21<\/td>\nFigure 4 \u2014 \u03b7BEP = f (ns) for ESOB with QBEP = 32 m\u00b3\/h, 2 900 min-1 and for different values of MEI (see Table 3) <\/td>\n<\/tr>\n
22<\/td>\n5 Determination of the Efficiency of a Test Pump
5.1 General
5.2 Test Procedures <\/td>\n<\/tr>\n
23<\/td>\n5.3 Test conditions <\/td>\n<\/tr>\n
24<\/td>\n5.4 Measuring uncertainties
5.4.1 Relevance
5.4.2 Fluctuations <\/td>\n<\/tr>\n
25<\/td>\nTable 4 \u2014 Permissible amplitude of fluctuation as a percentage of mean value of quantity being measured
5.4.3 Statistical evaluation of overall measurement uncertainty
5.4.4 Maximum permissible measurement device (systematic) uncertainty
5.4.4.1 General
Table 5 \u2014 Maximum permissible measurement device uncertainty es,max as a percentage of the arithmetically averaged value of the measured quantity <\/td>\n<\/tr>\n
26<\/td>\n5.4.4.2 The overall uncertainty
Table 6 \u2014 Permissible values of overall uncertainties
5.4.4.3 Determination of overall uncertainty of efficiency
Table 7 \u2014 Resulting largest values of the overall uncertainties of efficiency
5.5 Evaluation of test data
5.5.1 Conversion of the test results to the nominal speed of rotation or to the nominal electric frequency <\/td>\n<\/tr>\n
27<\/td>\n5.5.2 Performance curves <\/td>\n<\/tr>\n
29<\/td>\nFigure 5 \u2014 Performance curves with values relevant for the qualification or verification <\/td>\n<\/tr>\n
30<\/td>\n5.5.3 Determination of the values relevant for the qualification or verification
5.5.4 Procedures for testing and\/or evaluation of special pump types
5.5.4.1 General
5.5.4.2 Other nominal speeds than 1 450 min-1 or 2 900 min-1 <\/td>\n<\/tr>\n
31<\/td>\n5.5.4.3 Twin head pumps (ESCCi with two impellers)
5.5.4.4 Pumps according to more than one type definition
6 Proving the Minimum Efficiency Index of a pump size
6.1 General remarks <\/td>\n<\/tr>\n
32<\/td>\n6.2 Determination of the Minimum Efficiency Index of a pump size <\/td>\n<\/tr>\n
33<\/td>\n7 Verification of the Minimum Efficiency Index for a pump size
7.1 General remarks
7.2 Procedure and decision <\/td>\n<\/tr>\n
36<\/td>\nFigure 6 \u2014 Schematic presentation of \u201cpass\u201d (left figure) and \u201cfail\u201d (right figure) results of a test pump for a certain value of the Minimum Efficiency Index (MEI) <\/td>\n<\/tr>\n
37<\/td>\nAnnex A (normative) Pump types in scope
Table A.1 \u2014 Pump types within the scope <\/td>\n<\/tr>\n
38<\/td>\nTable A.2 \u2014 Pumps within the scope <\/td>\n<\/tr>\n
39<\/td>\nAnnex B (informative) General remarks on the efficiency of rotodynamic pumps <\/td>\n<\/tr>\n
40<\/td>\nFigure B.1 <\/td>\n<\/tr>\n
41<\/td>\nAnnex C (informative) Mean Values of a Size Relevant for its Minimum Efficiency Index <\/td>\n<\/tr>\n
42<\/td>\nFigure C.1 \u2014 Normal distribution of a quantity x within a pump size resulting from manufacturing tolerances <\/td>\n<\/tr>\n
44<\/td>\nFigure C.2 \u2014 Effect of total tolerances of measured efficiencies, case 1 <\/td>\n<\/tr>\n
45<\/td>\nFigure C.3 \u2014 Effect of total tolerances of measured efficiencies, case 2 <\/td>\n<\/tr>\n
46<\/td>\nAnnex D (informative) Methods recommended for manufacturers to determine the mean values of hydraulic quantities of a size relevant for MEI
D.1 General remarks
D.2 Determination of the mean efficiency of a pump size from a test on one single test pump <\/td>\n<\/tr>\n
48<\/td>\nFigure D.1 \u2014 Graphical presentation of mean efficiencies relevant for the Minimum Efficiency Index (MEI) of a pump size
D.3 Determination of the mean efficiency of a pump size from a sample of M test pumps <\/td>\n<\/tr>\n
51<\/td>\nAnnex E (informative) Numerical example
Table E.1 \u2014 “True efficiency values\u201d of sample pumps <\/td>\n<\/tr>\n
52<\/td>\nTable E.2 \u2014 \u201cMeasured values\u201d of sample pumps
Table E.3 \u2014 \u201cCalculation of measured values\u201d of sample pumps <\/td>\n<\/tr>\n
53<\/td>\nTable E.4 \u2014 95 % confidence intervals of mean efficiency resulting from tests on a single pump <\/td>\n<\/tr>\n
54<\/td>\nFigure E.1 \u2014 Comparison of confidence intervals of mean efficiency <\/td>\n<\/tr>\n
55<\/td>\nTable E.5 \u2014 Relevant values and results in respect to qualification of the size <\/td>\n<\/tr>\n
56<\/td>\nAnnex F (informative) Application of mathematical statistics on tests
F.1 Purposes of applying statistics in the frame of qualification and verification <\/td>\n<\/tr>\n
57<\/td>\nF.2 Confidence interval <\/td>\n<\/tr>\n
58<\/td>\nTable F.1 \u2014 Values of Student`s factor for two sided probability 95 % (single sided with 97,5%) <\/td>\n<\/tr>\n
59<\/td>\nTable F.2 \u2014 Maximum permissible values of ratio R (two sided 95%)
F.3 Law of error propagation
F.4 Numerical example <\/td>\n<\/tr>\n
60<\/td>\nTable F.3 \u2014 \u201cTrue efficiency values\u201d of sample pumps <\/td>\n<\/tr>\n
61<\/td>\nTable F.4 \u2014 \u201cMeasured values\u201d of sample pumps \u2014
Table F.5 \u2014 \u201cCalculation of measured values\u201d of sample pumps <\/td>\n<\/tr>\n
62<\/td>\nTable F.6 \u2014 95 % confidence intervals of mean efficiency resulting from tests on a single pump <\/td>\n<\/tr>\n
63<\/td>\nFigure F.1 \u2014 Comparison of confidence intervals of mean efficiency resulting from application of different methods <\/td>\n<\/tr>\n
64<\/td>\nTable F.7 \u2014 Relevant values and results in respect to qualification of the size
Table F.8 \u2014 Relevant values and results in respect to verification of the size <\/td>\n<\/tr>\n
66<\/td>\nAnnex G (informative) Measurement uncertainties
G.1 General remarks <\/td>\n<\/tr>\n
68<\/td>\nG.2 Determination of the overall measurement uncertainty of efficiency <\/td>\n<\/tr>\n
70<\/td>\nAnnex H (informative) Explanations concerning the methodology of the verification procedure and the probability of the results <\/td>\n<\/tr>\n
71<\/td>\nFigure H.1 \u2014 Probability of individual efficiency within a size <\/td>\n<\/tr>\n
73<\/td>\nAnnex I (informative) Reporting of Test Results
I.1 Test Report Requirements
I.2 Pump test sheet <\/td>\n<\/tr>\n
74<\/td>\nTable I.1 \u2014 Test report I <\/td>\n<\/tr>\n
75<\/td>\nAnnex 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 Europ…
Table ZA.1 \u2014 Correspondence between this European Standard and the EU-regulation 547\/2012 <\/td>\n<\/tr>\n
76<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Pumps. Minimum required efficiency of rotodynamic water pumps<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2016<\/td>\n78<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":265066,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-265062","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/265062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/265066"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=265062"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=265062"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=265062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}