1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 4641:2011Rubber hoses and hoseassemblies for water suctionand discharge Specification(ISO 4641:2010)Copyright European Committee for Standardization Provided by IHS und
2、er license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4641:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 4641:2011. It is identical to ISO 4641:2010. It supersedes BS EN ISO 4641:2008,which is
3、withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e P R I / 6 6 , R u b b e r a n d p l a s t i c s t u b i n g , h o s e s and hose assemblies.A list of organizations represented on this committee can be obtained on request to its secretary.This pu
4、blication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 67196 8 ICS 23.040.70 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published unde
5、r the authority of the Standards Policy and Strategy Committee on 31 August 2011.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license
6、 from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4641 June 2011 ICS 23.040.70 Supersedes EN ISO 4641:2008English Version Rubber hoses and hose assemblies for water suction and discharge - Specification (ISO 4641:2010) Tuyaux et flexibles en caoutchouc pour aspiration et refoule
7、ment deau - Spcifications (ISO 4641:2010) Saug- und Druck-Gummischluche und Schlauchleitungen fr Wasser - Anforderung (ISO 4641:2010) This European Standard was approved by CEN on 5 May 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
8、 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
9、 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 bodi
10、es of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kin
11、gdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4641:2011: ECo
12、pyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4641:2011 EN ISO 4641:2011 (E) 3 Foreword The text of ISO 4641:2010 has been prepared by Technical Committee ISO/TC 45 “Ru
13、bber and rubber products” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 4641:2011 by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” the secretariat of which is held by BSI. This European Standard shall be given the statu
14、s of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. Attention is drawn to the possibility that some of the elements of this document may be the su
15、bject 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 4641:2008. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
16、 this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer
17、land and the United Kingdom. Endorsement notice The text of ISO 4641:2010 has been approved by CEN as a EN ISO 4641:2011 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without lice
18、nse from IHS-,-,-BS EN ISO 4641:2011ISO 4641:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Classification .2 5 Couplings and end fittings .2 6 Materials and construction.2 7 Dimensions and tolerances2 8 Physical proper
19、ties .3 9 Frequency of testing .6 10 Marking.7 11 Test report/certificate7 12 Packaging and storage .7 Annex A (normative) Type tests and routine tests8 Annex B (informative) Production tests .9 Annex C (informative) Couplings and end fittings 10 Bibliography11 Copyright European Committee for Stand
20、ardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4641:2011ISO 4641:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of nation
21、al 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 committee has been established has the right to be represented on that committee. Internatio
22、nal 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 electrotechnical standardization. International Standards are drafted in accordance with the rule
23、s given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at l
24、east 75 % of the member bodies casting a vote. 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. ISO 4641 was prepared by Technical Committee ISO/TC 45
25、, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics). This fourth edition cancels and replaces the third edition (ISO 4641:2005), which has been technically revised. The following changes have been made: the pressures in megapascals have been introduced in the tables and text
26、 next to the pressures given in bars; modifications have been made to the wording used in Clause 9 and in Annexes A and B. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN I
27、SO 4641:2011INTERNATIONAL STANDARD ISO 4641:2010(E) ISO 2010 All rights reserved 1Rubber hoses and hose assemblies for water suction and discharge Specification 1 Scope This International Standard specifies the minimum requirements for textile-reinforced, smooth-bore rubber water-suction and dischar
28、ge hoses and hose assemblies. Three types of hoses and hose assemblies 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 references The fol
29、lowing referenced documents are indispensable for the application 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 Determinatio
30、n of tensile stress-strain properties ISO 188, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance tests ISO 1307:2006, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses ISO 1402, Rubber and plastics hoses and hos
31、e assemblies Hydrostatic testing ISO 1746, Rubber or plastics hoses and tubing Bending tests1)ISO 2393, Rubber test mixes Preparation, mixing and vulcanization Equipment and procedures ISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the l
32、engths of hose assemblies ISO 4672:1997, Rubber and plastics hoses Sub-ambient temperature flexibility tests2)ISO 7233:2006, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuum ISO 7326:2006, Rubber and plastics hoses Assessment of ozone resistance under static condit
33、ions ISO 8033, Rubber and plastics hoses Determination of adhesion between components 1) Under revision as ISO 10619-1. 2) Under revision as ISO 10619-2. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted witho
34、ut license from IHS-,-,-BS EN ISO 4641:2011ISO 4641:2010(E) 2 ISO 2010 All rights reservedISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary ISO 8331, Rubber and plastics hoses and hose assemblies Guidelines for selection, storage, use and maintenance 3 Terms and definitions For the
35、purposes of this document, the terms and definitions given in ISO 8330 apply. 4 Classification Hoses 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 0,063 MPa (0,63 bar) and for d
36、ischarge 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 (10 bar). 5 Couplings and en
37、d fittings Hoses shall be fitted with end fittings/couplings to form hose assemblies. Annex C lists types of coupling and end fitting. 6 Materials and construction 6.1 Lining The lining shall consist of suitably compounded water-resistant natural or synthetic rubber. Its internal surface shall be sm
38、ooth and free from imperfections which could impair the expected use. 6.2 Reinforcement The 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 Cover The cover shall consist of suitably compounded natural o
39、r 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 tolerances 7.1 Bore (inside diameter) The nominal size range is 16 to 315 with bore diameters and tolerances as shown
40、in Table 3. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4641:2011ISO 4641:2010(E) ISO 2010 All rights reserved 37.2 Enlarged ends Where enlarged ends are required,
41、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. 7.3 Unit lengths The unit lengths shall be determined according to the conditions of use as specified by
42、 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 Lining When measured in accordance with ISO 4671, the minimum thickness of the lining shall be 1,5 mm. See Table 4. 7.5 Cover When measured in a
43、ccordance 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 cover thickness. See Table 4. 8 Physical properties 8.1 Rubber compounds 8.1.1 General Wherever possible, all tests shall be carried out on
44、 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 the 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 Tens
45、ile strength and elongation at break of rubber lining and cover When tested in accordance with ISO 37, the lining and cover shall have a tensile strength and elongation at break of not less than the values given in Table 1. 8.1.3 Resistance to ageing After ageing as specified in ISO 188 for 3 days a
46、t 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 % and 50 %, respectively, from the initial values. Copyright European Committee for Standardization Provided by IHS under license with CENNot fo
47、r ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4641:2011ISO 4641:2010(E) 4 ISO 2010 All rights reservedTable 1 Physical properties of rubber compounds Requirements Property Unit Lining Cover Method of test Tensile strength, min. MPa 7 7 ISO 37 (dumb-bell test
48、piece) Elongation at break, min. % 200 200 ISO 37 (dumb-bell test piece) Resistance to ageing: Change in tensile strength from original value (max.) % 25 25 Change in elongation at break from original value (max.) % 50 50 ISO 188 (3 days at 100 C 1 C);ISO 37 (dumb-bell test piece) 8.2 Performance requirements for hoses and hose assemblies 8.2.1 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
