1、May 2010 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23
2、.080!$c8W“1642152www.din.deDDIN EN 12162Liquid pumps Safety requirements Procedure for hydrostatic testing (includes Amendment A1:2009)English translation of DIN EN 12162:2010-05Flssigkeitspumpen Sicherheitstechnische Anforderungen Prozessverfahren fr hydrostatische Druckprfung (enthlt nderung A1:20
3、09)Englische bersetzung von DIN EN 12162:2010-05Pompes pour liquides Exigences de scurit Procdure dessai hydrostatique (Amendement A1:2009 inclus)Traduction anglaise de DIN EN 12162:2010-05SupersedesDIN EN 12162:2001-12See start of validitywww.beuth.deDocument comprises pagesIn case of doubt, the Ge
4、rman-language original shall be considered authoritative.1705.10 DIN EN 12162:2010-05 A comma is used as the decimal marker. Start of validity This standard takes effect on 1 May 2010. National foreword This standard includes safety requirements. This standard has been prepared by Technical Committe
5、e CEN/TC 197 “Pumps” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Section Pumpen. Representatives of manufacturers and users of liquid pumps, and of the employers liability ins
6、urance associations contributed to this standard. This standard contains specifications meeting the essential requirements set out in Annex I of the “Machinery Directive”, Directive 98/37/EC, (valid until 28 December 2009) and the “revised Machinery Directive”, Directive 2006/42/EC, which takes effe
7、ct on 29 December 2009, and which apply to liquid pumps that are either first placed on the market or commissioned within the EEA. This standard serves to facilitate proof of compliance with the essential requirements of the directives. Once this standard is cited in the Official Journal of the Euro
8、pean Union, it is deemed a “harmonized” standard and thus, a manufacturer applying this standard may assume compliance with the requirements of the Machinery Directive (“presumption of conformity”). Amendments This standard differs from DIN EN 12162:2001-12 as follows: a) Normative references have b
9、een updated. b) Annex ZB (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC” has been added. Previous editions DIN EN 12162: 2001-12 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12162:2001+A1 May 2009 ICS 23.080 Supersedes E
10、N 12162:2001English Version Liquid pumps - Safety requirements - Procedure for hydrostatic testing Pompes pour liquides - Exigences de scurit - Procdure dessai hydrostatique Flssigkeitspumpen - Sicherheitstechnische Anforderungen - Prozessverfahren fr hydrostatische Druckprfung This European Standar
11、d was approved by CEN on 18 January 2001 and includes Amendment 1 approved by CEN on 19 April 2009. 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-
12、to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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 un
13、der the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece
14、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management
15、 Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12162:2001+A1:2009: EEN 12162:2001+A1:2009 (E) Contents Foreword 3Introduction . 41 Scope 52 Normative references 53 Terms and definiti
16、ons . 64 General 65 Timing of the test . 66 Preparation for testing 77 Test equipment 78 Test liquid . 79 Test pressure . 710 Test procedure . 811 Acceptance criteria 912 Repairs 913 Test Records 9Annex A (informative) Random sample schedule 11Annex ZA (informative) !Relationship between this Europe
17、an Standard and the Essential Requirements of EU Directive 98/37/CE“ . 13Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“ . 14Bibliography 15DIN EN 12162:2010-05 Page 2EN 12162:2001+A1:2009 (E) Foreword This document (EN 1
18、2162:2001+A1:2009) 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 standard, either by publication of an identical text or by endorsement, at the latest by November 2009, and conf
19、licting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2009-04-19. This document supersedes EN 12162:2001. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This European
20、Standard 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(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ A
21、nnex A is informative. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ic
22、eland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 12162:2010-05 3EN 12162:2001+A1:2009 (E) Introduction CEN have prepared a series of related machinery safety standard
23、s, some of which are to be harmonised European Standards, in order to implement the essential requirements for health and safety set down in the Supply of Machinery (Safety) Directive. This European Standard is one of this series and provides the procedure to be used for a specific verification requ
24、irement of EN 809. The subject of this European Standard is the proving of the integrity of pump parts intended to withstand internal pressure. It refers, therefore, to the in-process testing of pump parts so that each item may be considered to have been examined. This European standard is a type C
25、standard as stated in EN 1070. DIN EN 12162:2010-05 4EN 12162:2001+A1:2009 (E) 1 Scope This standard specifies the hydrostatic test procedure to be applied to pressure containing parts of all types of liquid pumps including any auxiliary equipment making up a pump unit as described in the scope of E
26、N 809:1998, except : domestic water pumps within the scope of EN 60335-2-41:1996 or EN 60335-2-51:1997 ; domestic circulation pumps within the scope of EN 1151:1999 ; !deleted text“ !fire-fighting pumps with primers within the scope of EN 1028-1:2002+A1:2008 and EN 1028-2:2002+A1:2008;“ pump parts w
27、ith a maximum allowable working pressure below 0.1 bar. Requirements are included for applying a hydrostatic test at different pressures to separate zones within a pump which are subject to different allowable maximum working pressures. This standard is for pumps and pump units which are placed upon
28、 the market after the publication date of the standard. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter.
29、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 or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 809:1998, Pumps
30、and pump units for liquids - Common safety requirements. !EN 1028-1:2002+A1:2008, Fire fighting pumps - Fire fighting centrifugal pumps with primer - Part 1 : Classification - General and safety requirements“ !EN 1028-2:2002+A1:2008, Fire fighting pumps - Fire fighting centrifugal pumps with primer
31、- Part 2 : - Verification of general and safety requirements“ EN 1151:1999, Rotodynamic pumps - Circulation pumps having an electrical effect not exceeding 200 W for heating installations and domestic hot water installations - Requirements, testing, marking. EN 12723:2000, Liquid pumps - General ter
32、ms for pumps and installations - Definitions, quantities, letter symbols and units. !deleted text“ EN 60335-2-41:1996, Safety of household and similar electrical appliances - Part 2: Particular requirements for electric pumps for liquids having a temperature not exceeding 35 C. EN 60335-2-51: 1997,
33、Safety of household and similar electrical appliances - Part 2: Particular requirements for stationary circulation pumps of heating and service water installations. DIN EN 12162:2010-05 5EN 12162:2001+A1:2009 (E) 3 Terms and definitions For the purposes of this standard, EN 12723:2000 and the follow
34、ing definition apply: “Item“ or “items to be tested“ any part, component, sub-assembly, pump or pump units which is to be the subject of hydrostatic pressure test1)4 General 4.1 All pressure containing items shall be hydrostatically pressure tested. The purpose of this hydrostatic test is to demonst
35、rate the absence of leakage through pressure containing walls of any item under test and from the joints formed by an assembly of items under test, by imposing a defined pressure in excess of the allowable working pressure for which the item is supplied. 4.2 This test procedure shall be applied to a
36、 sampling programme only where the manufacturer can show the validity of the sampling programme and that it is appropriate for the application. An example of a sampling programme is given in annex A. 4.3 Pumps with double volutes, multiple stages, and otherwise with internal separating walls and to
37、be tested segmentally shall have a hydrostatic pressure applied to each segment related to the operating conditions in the segment when the pump is working at its allowable working pressure. 4.4 Pressure containing chambers which function independently shall be tested separately without pressure bei
38、ng applied to any adjacent chamber. 4.5 To avoid excessive loads on crank-shafts in multiplex reciprocating pump assemblies those elements in the suction stage of the cycle shall be supported or disconnected from the crank-shaft. 5 Timing of the test The manufacturer shall allow sufficient time duri
39、ng manufacture for the test and examination of all items within the scope of this standard. The test may be carried out on an individual item or on a sub-assembly as a group of items. Normally, the hydrostatic test is carried out : after completion of machining ; prior to the application of coatings
40、, insulation, and overlays, (protection of raw parts against rust shall not be considered as a coating) ; following non-destructive testing, or after special leak tests below a gauge pressure of 0,5 bar on reciprocating positive displacement pumps, at the start of the performance test of the fully a
41、ssembled pump. 1)A rotating mechanical seal assembled into a pump or into a separate sub-assembly, together with an end plate to connect the stationary elements of the seal to the stationary parts of the pump, will not be considered as an item to be tested but may be subjected to the test pressure.
42、DIN EN 12162:2010-05 6EN 12162:2001+A1:2009 (E) 6 Preparation for testing 6.1 Items to be subjected to test shall be free from grease, oil and other contaminants, and any cleaner used shall be compatible with the materials of manufacture of the pump, its auxiliaries, and its intended use. 6.2 The it
43、ems to be tested are to be assembled for the test and all openings are to be blanked-off by appropriate means which may include blind flanges, plugs, closures and tension rings. Care shall be taken in selecting the closure arrangements not to impose forces capable of distorting the items under test
44、nor of otherwise obscuring any leak. Through bolting shall not be used unless it is part of the construction of the item being tested. 6.3 The item to be tested and the gauge lines are to be vented and filled completely with the test liquid. 6.4 Wherever feasible the mating parts and fasteners used
45、in any assembly shall be those to be used in the delivered pump, otherwise reasons for deviating from this requirement shall be recorded. 7 Test equipment 7.1 The test equipment shall comprise a device for generating the test pressure using a test liquid defined in clause 8.1, the item to be tested
46、prepared in accordance with clause 6, and a pressure indicating device. NOTE The device generating the test pressure may be the pump under test. 7.2 The hydrostatic test shall be carried out with calibrated pressure gauges. The pressure indicating device selected shall be accurate to within 1,5 % of
47、 the reading at the test pressure. The reference point for the pressure shall be the lowest point of the item to be tested. The applied test pressure shall be uniformly distributed within the item being tested. 8 Test liquid 8.1 The hydrostatic test is normally to be carried out using clean water at
48、 ambient temperature, with the addition of corrosion preventative and organic growth inhibitors where necessary. If the properties of the material imposes a limit on the test temperature which affects the test procedure this is to be noted on the test record. 8.2 An alternative liquid shall be used
49、where clean water is not appropriate for the application. The liquid used and the reason for its selection shall be recorded. Where residual chloride deposition is not acceptable for the application, the chloride content of the test liquid shall not exceed 50 ppm (0,005 %). 9 Test pressure 9.1 The hydrostatic test pressure relates to the allowable working pressure at ambient temperature of the items to be tested. Where the items to be tested are to be offered for general applic
