1、BS EN ISO 4641:2016Rubber hoses and hoseassemblies for water suctionand discharge Specification(ISO 4641:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 4641:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO
2、 4641:2016.It supersedes BS EN ISO 4641:2011 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/66, Rubber and plastics tubing, hoses and hose assemblies.A list of organizations represented on this committee can be obtained on request to its secretary
3、.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 92777 5 ICS 23.040.70 Compliance with a British Standard cannot co
4、nfer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4641 Dece
5、mber 2016 ICS 23.040.70 Supersedes EN ISO 4641:2011English Version Rubber hoses and hose assemblies for water suction and discharge - Specification (ISO 4641:2016) Tuyaux et flexibles en caoutchouc pour aspiration et refoulement deau - Spcifications (ISO 4641:2016) Saug -und Druck-Gummischluche und
6、Schlauchleitungen fr Wasser - Anforderung (ISO 4641:2016) This European Standard was approved by CEN on 22 October 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 withou
7、t 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 la
8、nguage 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, Denm
9、ark, 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. EUROPEAN COMMITTEE
10、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 ISO 4641:2016 EBS EN ISO 4641:2
11、016EN ISO 4641:2016 (E) 3 European foreword This document (EN ISO 4641:2016) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products“ in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” the secretariat of which is held by BSI. T
12、his 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 June 2017, and conflicting national standards shall be withdrawn at the latest by June 2017. Attention is drawn to the possibility that some of the e
13、lements 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 supersedes EN ISO 4641:2011. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the foll
14、owing 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,
15、Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4641:2016 has been approved by CEN as EN ISO 4641:2016 without any modification. BS EN ISO 4641:2016ISO 4641:2016(E)Foreword iv1 Scope . 12 Normative r
16、eferences 13 Terms and definitions . 14 Classification 25 Coupling and fittings 26 Materials and construction . 26.1 Lining . 26.2 Reinforcement . 26.3 Cover 27 Dimensions and tolerances . 27.1 Bore (inside diameter) . 27.2 Enlarged ends 27.3 Unit lengths 37.4 Lining . 37.5 Cover 38 Physical propert
17、ies 38.1 Rubber compounds . 38.1.1 Rubber compounds . 38.1.2 Tensile strength and elongation at break of rubber lining and cover 38.1.3 Resistance to aging . 38.2 Performance requirements for hoses and hose assemblies 48.2.1 Hydrostatic-pressure requirements (proof pressure test) . 48.2.2 Burst test
18、 48.2.3 Resistance to bending (minimum bend radius as a function of nominal size) 48.2.4 Resistance to suction flattening 58.2.5 Low-temperature flexibility . 58.2.6 Adhesion . 58.2.7 Ozone resistance of the cover . 59 Frequency of testing 610 Marking 610.1 Hoses . 610.2 Hose assemblies . 611 Test r
19、eport/certificate 612 Packaging and storage 7Annex A (normative) Type tests and routine tests 8Annex B (informative) Production tests . 9Annex C (informative) Couplings and end fittings .10Bibliography .11 ISO 2016 All rights reserved iiiContents PageBS EN ISO 4641:2016ISO 4641:2016(E)ForewordISO (t
20、he International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical commit
21、tee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotech
22、nical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted
23、in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
24、 Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute
25、an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/forewo
26、rd.html.The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.This fifth edition cancels and replaces the fourth edition (ISO 4641:2010), of which it constitutes a minor revision with the following chang
27、es: Clause 2 has been updated, where ISO 1746 and ISO 4672 have been deleted and replaced by ISO 10619-1 and ISO 10619-2, respectively; tolerance dimension “in mm” has been added to 7.1; the text of 8.2.3, 8.2.5, 10.1 and 10.2 has been slightly modified to bring the references up to date; Table 4 ha
28、s been slightly modified to bring the references up to date; Bibliography has been updated as ISO 10619-1 and ISO 10619-2 are now published and listed in Clause 2. the text has been editorially revised to comply with the most recent editing rules.iv ISO 2016 All rights reservedBS EN ISO 4641:2016INT
29、ERNATIONAL STANDARD ISO 4641:2016(E)Rubber hoses and hose assemblies for water suction and discharge Specification1 ScopeThis document specifies the minimum requirements for textile-reinforced, smooth-bore rubber water-suction and discharge hoses and hose assemblies.Three types of hoses and hose ass
30、emblies are specified according to their operating duty requirements, i.e. their ambient and water temperature ranges: ambient temperatures: 25 C to +70 C; water temperatures during operation: 0 C to +70 C.2 Normative referencesThe following documents are referred to in the text in such a way that s
31、ome or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile s
32、tress-strain propertiesISO 188, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance testsISO 1307:2006, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hosesISO 1402, Rubber and plastics hoses and hose assemblies Hydr
33、ostatic testingISO 2393, Rubber test mixes Preparation, mixing and vulcanization Equipment and proceduresISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assembliesISO 7233:2016, Rubber and plastics hoses and hose assem
34、blies Determination of resistance to vacuumISO 7326:2016, Rubber and plastics hoses Assessment of ozone resistance under static conditionsISO 8033, Rubber and plastics hoses Determination of adhesion between componentsISO 8331, Rubber and plastics hoses and hose assemblies Guidelines for selection,
35、storage, use and maintenanceISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperatureISO 10619-2:2011, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests at sub-ambient temp
36、eratures3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 apply. ISO 2016 All rights reserved 1BS EN ISO 4641:2016ISO 4641:2016(E)ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia:
37、 available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 ClassificationHoses and hose assemblies for this application are classified into three types according to their operating duty requirements. Type 1: Light-duty hoses for suction service to 0,0
38、63 MPa (0,63 bar) and for discharge pressures up to 0,3 MPa (3 bar). Type 2: Medium-duty hoses for suction service to 0,08 MPa (0,8 bar) and for discharge pressures up to 0,5 MPa (5 bar). Type 3: Heavy-duty hoses for suction service to 0,097 MPa (0,97 bar) and for discharge pressures up to 1,0 MPa (
39、10 bar).5 Coupling and fittingsHoses shall be fitted with end fittings/couplings to form hose assemblies. Annex C lists types of coupling and end fitting.6 Materials and construction6.1 LiningThe lining shall consist of suitably compounded water-resistant natural or synthetic rubber. Its internal su
40、rface shall be smooth and free from imperfections which could impair the expected use.6.2 ReinforcementThe reinforcement shall consist of a suitable textile material and may contain a helix that can be metallic wire or of another suitable material.6.3 CoverThe cover shall consist of suitably compoun
41、ded natural or synthetic rubber. Its external surface may be corrugated or fluted. An external helix is optional and can be either metallic wire or of another suitable material.7 Dimensions and tolerances7.1 Bore (inside diameter)The nominal size range is 16 to 315 with bore diameters and tolerances
42、 in mm as shown in Table 3.7.2 Enlarged endsWhere enlarged ends are required, the dimensions and tolerances shall be specified by agreement between the purchaser and the manufacturer. The design of the enlarged end shall take into account the hose performance requirements.2 ISO 2016 All rights reser
43、vedBS EN ISO 4641:2016ISO 4641:2016(E)7.3 Unit lengthsThe unit lengths shall be determined according to the conditions of use as specified by the purchaser. The tolerances, unless otherwise agreed between the purchaser and the manufacturer, shall be those specified in ISO 1307:2006, Table 2.7.4 Lini
44、ngWhen measured in accordance with ISO 4671, the minimum thickness of the lining shall be 1,5 mm. See Table 4.7.5 CoverWhen measured in accordance with ISO 4671, the minimum thickness of the cover shall be 2 mm. If the cover is fluted, the depth of the flutes shall be not greater than 50 % of the co
45、ver thickness. See Table 4.8 Physical properties8.1 Rubber compounds8.1.1 Rubber compoundsWherever possible, all tests shall be carried out on test pieces cut from the finished hose. Otherwise, take samples from test sheets prepared in accordance with ISO 2393 and vulcanized to the same degree as th
46、e hose.The physical properties of the rubber compounds used for the lining and cover shall conform to the values given in Table 1.8.1.2 Tensile strength and elongation at break of rubber lining and coverWhen tested in accordance with ISO 37, the lining and cover shall have a tensile strength and elo
47、ngation at break of not less than the values given in Table 1.8.1.3 Resistance to agingAfter ageing as specified in ISO 188 for three days at a temperature of 100 C 1 C, the tensile strength and elongation at break of the lining and cover, as determined by ISO 37, shall not vary by more than 25 % an
48、d 50 %, respectively, from the initial values.Table 1 Physical properties of rubber compoundsProperty UnitRequirementsMethod of testLining CoverTensile strength, min. MPa 7 7 ISO 37 (dumb-bell test piece)Elongation at break, min. % 200 200 ISO 37 (dumb-bell test piece)Resistance to ageingISO 188 (3
49、days at 100 C 1 C); ISO 37 (dumb-bell test piece)Change in tensile strength from original value (max.)% 25 25Change in elongation at break from original value (max.)% 50 50 ISO 2016 All rights reserved 3BS EN ISO 4641:2016ISO 4641:2016(E)8.2 Performance requirements for hoses and hose assemblies8.2.1 Hydrostatic-pressure requirements (proof pressure test)The proof pressure test shall be carried out on full lengths of finished hose and on hose assemblies. When tested in accordan
