1、BRITISH STANDARDRotary positive displacement pumps Performance tests for acceptance ICS 23.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN1
2、4343:2005Incorporating corrigendum October 2008National forewordThis British Standard is the UK implementation of EN 14343:2005, incorporating corrigendum October 2008.The UK participation in its preparation was entrusted to Technical Committee MCE/6, Pumps and pump testing.A list of organizations r
3、epresented on this committee can be obtained on request to its secretary.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 cannot confer immunity from legal obligations.BS EN 1
4、4343:2005This British Standard was published under the authority of the Standard Policy and Strategy Committee on17 February 2006 BSI 2010Amendments/corrigenda issued since publicationDate Comments 31 May 2010 Implementation of CEN corrigendum October 2008. Last paragraph replaced in 9.5ISBN 978 0 5
5、80 65115 1EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14343December 2005ICS 23.080English VersionRotary positive displacement pumps - Performance tests foracceptancePompes volumtriques rotatives - Essais de performancespour la rceptionRotierende Verdrngerpumpen - Leistungsprfung zurAbnahmeThis
6、 European Standard was approved by CEN on 26 October 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical reference
7、s concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its
8、own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
9、rg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitat
10、ion in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14343:2005: EIncorporating corrigendum October 2008EN 14343:2005 (E) 2 Contents page Foreword 3 1 Scope .4 2 Normative references .4 3 Terms and definitions.4 3.1 General 4 3.2 Types of test4 3.3 Test levels5 3.4
11、 Other terms5 4 Performance requirements.6 5 Organisation6 5.1 Responsibility for test 6 5.2 Test location6 5.3 Test date 6 5.4 Test programme6 6 Equipment .7 6.1 Test equipment .7 6.2 Measurement equipment8 7 Test conditions .9 7.1 Test condition variables (TCV).9 7.2 Fluctuations.9 8 Test procedur
12、e 10 8.1 Pre-run data.10 8.2 Operating the pump10 8.3 Collection of test data.11 8.4 After test 11 9 Evaluation and test report12 9.1 Readings and primary data 12 9.2 Accuracy12 9.3 Acceptance limits13 9.4 Evaluation13 9.5 Test report .14 Annex A (informative) Example of rotary displacement pump tes
13、t loop15 Annex B (informative) Priming test .16 BS EN 14343:2005EN 14343:2005 (E) 3 Foreword This European Standard (EN 14343:2005) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national s
14、tandard, either by publication of an identical text or by endorsement, at the latest by June 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are
15、bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and U
16、nited Kingdom. BS EN 14343:2005EN 14343:2005 (E) 4 1 Scope This European Standard describes specified types of acceptance tests for rotary positive displacement pumps for applications other than fluid power, excluding progressing cavity and peristaltic type pumps. This European Standard applies to t
17、he testing of pumps with and without drivers. This European Standard covers a selection of tests to establish a uniform demonstration of the pumps ability to perform satisfactorily. It does not, however, cover all tests that may be needed for particular pump types or applications, e.g. tests for haz
18、ardous liquids or single shaft multiple pump units. Furthermore, it does not cover any noise and vibration tests, priming tests nor any hydrostatic pressure tests. Some pump types with integral relief valves may require more extensive relief valve tests than described in this European Standard. For
19、dosing and metering applications, further tests to demonstrate the dosing and metering abilities of the pumps may be necessary. NOTE Extrapolation of test results to non-tested pumps is not described in this European Standard. Such extrapolation could be made for mass-produced pumps with reference t
20、o pertinent quality assurance methods and standards. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document
21、(including any amendments) applies. EN 10204, Metallic products Types of inspection documents EN 12723:2000, Liquid pumps General terms for pumps and installations Definitions, quantities, letter symbols and units EN ISO 10012, Measurement management systems Requirements for measurement processes an
22、d measuring equipment (ISO 10012:2003) 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 General For the purposes of this European Standard, the terminology, symbols and abbreviations as given in EN 12723:2000 apply. 3.2 Types of test
23、3.2.1 T1 flow test test to verify that the pump flow is within a specified tolerance 3.2.2 T2 power test test to verify that the input power is within specified tolerances BS EN 14343:2005EN 14343:2005 (E) 5 3.2.3 T3 inlet pressure test test to verify that the pump operates satisfactorily without ca
24、vitation at specified inlet pressure conditions NOTE The inlet pressure test T3 is not designed to establish the limit for cavitation, nor is it intended to establish the priming characteristics of the pump. Some guidance for priming tests is given in Annex B. Such a test, when required, may be made
25、 part of the test programme, but will require separate description of the test procedure and acceptance criteria, adapted to the subject type of pump. 3.2.4 T4 relief valve test test to verify the pressure accumulation of a relief valve and its ability to reseat/close when the pressure is returned t
26、o normal 3.3 Test levels 3.3.1 L1 works test manufacturers internal quality assurance test. This test level is a pass/fail test without any formal recording requirements 3.3.2 L2 standard test manufacturers internal quality assurance test, with traceable records of pertinent test data 3.3.3 L3 order
27、 specified test test to verify the performance of a pump or pump unit at specified conditions. Test data are recorded 3.3.4 L4 observed test test to verify the pump or pump unit performance at specified conditions. The purchaser is given an opportunity to have a representative present at test. Test
28、data are recorded 3.3.5 L5 witness test test to verify the pump or pump unit performance at specified conditions. The purchaser needs a representative present at test (shall be a hold point). Test data are recorded 3.4 Other terms 3.4.1 test condition variables (TCV) those variables, such as pressur
29、e, speed and viscosity, that are directly controlled by the test arrangement and its operation 3.4.2 test result variables (TRV) those variables, such as flow and power consumption, that are obtained as a result of TCV and reflect the performance of the object under test 3.4.3 accuracy grade set of
30、instrumentation and test equipment accuracy requirements 3.4.4 tolerance class set of tolerance requirements for TRV 3.4.5 pressure accumulation for the purpose of this European Standard, pressure accumulation is considered as the difference between the maximum pressure observed during relief valve
31、opening and the specified operating pressure. This value includes the margin between operating pressure and valve setting and the pressure increase by relief valve characteristic BS EN 14343:2005EN 14343:2005 (E) 6 4 Performance requirements The supplier shall identify and specify in writing, prior
32、to the test, the TCV values (test conditions) together with the corresponding requirement values of TRV (performance results) for each set. He shall also specify test level, accuracy grade and tolerance class relevant to the purpose of the test. NOTE For test levels L3, L4 and L5 the TCV (test condi
33、tion variables) values should be selected to conform as far as practical to the conditions of the order and agreed upon by manufacturer and purchaser. Unless otherwise specified and agreed between purchaser and supplier, the following default values shall apply: test type: T1 Flow test and, for pump
34、s with integral valve or a valve directly attached to the pump body, T4 Relief valve test test level: L2 Standard test accuracy: Grade 2 tolerance: Class 2 5 Organisation 5.1 Responsibility for test The supplier shall be responsible for the appointment of a competent and experienced person to be in
35、charge of the tests. The supplier shall also be responsible for ensuring compliance with all relevant safety regulations and standards, unless testing is performed at an independent laboratory or at site, when conformity to safety regulations shall be ensured by the party responsible for the test lo
36、cation. 5.2 Test location Unless otherwise specified, testing shall be carried out at the suppliers works. If so agreed between purchaser and supplier, the testing may be carried out either at an independent test facility or at site. 5.3 Test date The supplier shall determine the date of test. For o
37、bserved or witness test (level L4 and L5), a minimum of 10 calendar days notice shall be provided to the purchaser unless otherwise agreed in advance. 5.4 Test programme The test procedure shall be described in a test programme prior to test. For observed test L4 or witness test L5, the test program
38、me shall be made available to the purchaser prior to test. The test programme shall include details on scheduling and responsibility for test, test methods and arrangements, performance requirements as per Clause 4 above, verification levels for inlet pressure tests T3, when applicable (see 9.4.2),
39、sequence and timing of actions and observations, recording of test data, methods for data corrections (see 7.1), presentation of results etc. BS EN 14343:2005EN 14343:2005 (E) 7 6 Equipment 6.1 Test equipment 6.1.1 General The pump under test shall be connected to a suitably dimensioned and rated te
40、st loop. Example of a test loop is given in Annex A. The test loop shall conform to the installation instruction given for the test pump. Special attention should be given to the alignment between pump and driver, possibilities to fill and drain the pump and to access for observation of leakage, vib
41、ration or other indications of malfunction. When necessary, an auxiliary loop for conditioning of the liquid, i.e. heating, cooling and/or filtering, shall be provided, see 6.1.3 and 6.1.4. 6.1.2 Test liquid The test liquid shall be a Newtonian liquid of known characteristics selected by the manufac
42、turer. Necessary liquid data, such as viscosity-temperature relationship, shall be available at the test stand, either in tabulated or graphical form, indicating the liquid designation and the date of issue and latest revision. The amount of test liquid shall be sufficient to allow it to settle in t
43、he tank and for this purpose the ratio of liquid volume to pump flow shall exceed 150 s, unless the purpose can be ascertained by other means, like highly efficient filtration and cooling. 6.1.3 Liquid temperature Means shall be provided to maintain an inlet temperature to the pump during test, cons
44、tant within 1,5 C. 6.1.4 Liquid cleanliness If necessary, adequate filtration in order to maintain the cleanliness of the liquid within the limits specified for the pump under test shall be provided. 6.1.5 Entrained air For viscous test liquids and when otherwise so required, means shall be provided
45、 for separating un-dissolved air and gas from the test liquid in order to minimise the risk of air and other gases entering the pump. Such means may include for instance a sloping mesh in the tank or suitably arranged bleeder valves. 6.1.6 Driver For tests on bare-shaft pumps, a suitable driver shal
46、l be selected, capable of maintaining constant speed at any given test point within 5 rpm. 6.1.7 Inlet pressure control device When so required, a suitably dimensioned valve to control the inlet pressure shall be fitted in the inlet line. In fully open position it shall not cause any significant pre
47、ssure drop. The type of such a valve and its position in the test loop shall be selected in such a way that cavitation in the valve is minimised and possible cavitation or release of dissolved gases in the valve does not influence the test. It shall generally be fitted as far from the pump as possib
48、le and as far below the pump inlet level as possible. Any other relevant means to decrease inlet pressure, such as a pressure-controlled tank or changing the geodetic suction height, is acceptable. BS EN 14343:2005EN 14343:2005 (E) 8 6.1.8 Flow measurement The flow meter shall be installed according
49、 to the relevant standards and instructions, and in a way to provide flow values referred to atmospheric conditions, unless otherwise agreed between manufacturer and supplier. This implies in most cases installation downstream of the loading valve and with an adequate back-pressure. Any other relevant means to determine flow, such as volumetric or gravitational tanks, is acceptable. 6.1.9 Pressure measurement Pressure gauges/transducers shall be fitted on inlet and outlet sides of the pump, as close to the pump as practically possible. Pressure tappings
