1、BSI Standards PublicationBS ISO 18752:2014Rubber hoses and hoseassemblies Wire- or textile-reinforced single-pressuretypes for hydraulic applications SpecificationCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or netwo
2、rking permitted without license from IHS-,-,-BS ISO 18752:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 18752:2014. Itsupersedes BS ISO 18752:2012 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/66, Rubb
3、er and plastics tubing, hoses and hoseassemblies.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Stan
4、dards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 84400 3ICS 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2014.Amen
5、dments issued since publicationDate Text affectedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014 ISO 2014Rubber hoses and hose assemblies Wire- or t
6、extile-reinforced single-pressure types for hydraulic applications SpecificationTuyaux et flexibles en caoutchouc Types hydrauliques avec armature de fils mtalliques tresss SpcificationsINTERNATIONAL STANDARDISO18752Third edition2014-04-01Reference numberISO 18752:2014(E)Copyright British Standards
7、Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specif
8、ied, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO
9、s member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Co
10、py Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 24 Classification 24.1 Classes 24.2 Grades and types . 25 Mate
11、rials and construction . 35.1 Hoses . 35.2 Hose assemblies . 36 Dimensions and tolerances . 46.1 Diameters 46.2 Cover thickness . 66.3 Concentricity. 67 Physical properties 77.1 Fluid resistance of rubber compounds 77.2 Performance requirements 78 Frequency of testing .109 Marking .109.1 Hoses 109.2
12、 Hose assemblies 1010 Recommendations for packaging and storage .1111 Test report 11Annex A (normative) Type tests and routine tests .12Annex B (informative) Production acceptance tests .13Annex C (informative) Recommendations for tolerances on lengths of hose assemblies .14Annex D (informative) Inf
13、ormation to be provided by hose manufacturer 15Bibliography .16Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2014(E)ForewordISO (the Inte
14、rnational 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 committee has
15、 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 electrotechnical s
16、tandardization.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 in acco
17、rdance 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. Detail
18、s 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 an endo
19、rsement.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 WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee respon
20、sible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics).This third edition cancels and replaces the second edition (ISO 18752:2012), of which it constitutes a minor revision, to include data of “Class 490” in Table 7.iv ISO 2014 All rights res
21、ervedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014INTERNATIONAL STANDARD ISO 18752:2014(E)Rubber hoses and hose assemblies Wire- or textile-reinfo
22、rced single-pressure types for hydraulic applications Specification1 ScopeThis International Standard specifies requirements for ten classes, four grades and seven types of wire- or textile-reinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each class has a single
23、 maximum working pressure for all sizes. Such hoses are suitable for use with hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from 40 C to +100 C for types AS, AC, BS and BC and 40 C to +120 C for types CS, CC and DC.This International Standard does not includ
24、e requirements for the connection ends. It is limited to the performance of hoses and hose assemblies. The hose assembly maximum working pressure is governed by the lowest maximum working pressure of the components.NOTE It is the responsibility of the user, in consultation with the hose manufacturer
25、, to establish the compatibility of the hose with the fluid to be used.2 Normative referencesThe following 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 d
26、ocument (including any amendments) applies.ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testingISO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquidsISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions o
27、f hoses and the lengths of hose assembliesISO 6803, Rubber or plastics hoses and hose assemblies Hydraulic-pressure impulse test without flexingISO 7233, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuumISO 7326:2006, Rubber and plastics hoses Assessment of ozone re
28、sistance under static conditionsISO 8033:2006, Rubber and plastics hoses Determination of adhesion between componentsISO 8330, Rubber and plastics hoses and hose assemblies VocabularyISO 8331, Rubber and plastics hoses and hose assemblies Guidelines for selection, storage, use and maintenanceISO 106
29、19-1, 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 temperaturesISO 17165-1, Hydraulic flui
30、d power Hose assemblies Part 1: Dimensions and requirements ISO 2014 All rights reserved 1Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2
31、014(E)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 apply.4 Classification4.1 ClassesTen classes of hose are specified, distinguished by their maximum working pressure, as shown in Table 1. Each class may be manufactured in up to 14 nominal siz
32、es.Table 1 Classes and nominal sizesClass 35 70 140 210 250 280 350 420 490 560MWPa(MPa) 3,5 7 14 21 25 28 35 42 49 56MWPa(bar) 35 70 140 210 250 280 350 420 490 560Nominal size5 X X X X X X X X N/A N/A6,3 X X X X X X X X N/A N/A8 X X X X X X X X N/A N/A10 X X X X X X X X N/A N/A12,5 X X X X X X X X
33、 N/A N/A16 X X X X X X X X X X19 X X X X X X X X X X25 X X X X X X X X X X31,5 X X X X X X X X X X38 X X X X X X X X N/A N/A51 X X X X X X X X N/A N/A63 X X X X X X X N/A N/A N/A76 X X X N/A N/A N/A N/A N/A N/A N/A102 X N/A N/A N/A N/A N/A N/A N/A N/A N/ANOTE X = Applicable; N/A = Not applicable.aMa
34、ximum working pressure.4.2 Grades and typesHoses are classified into four gradesaccording to their resistance to impulse: A, B, C and D. Each grade is classified by outside diameter into standard types (AS, BS and CS) and compact types (AC, BC, CC and DC), as shown in Table 2.2 ISO 2014 All rights r
35、eservedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2014(E)Table 2 Grades and typesGrade TypeaResistance to impulseTemperature CImpulse
36、pressure (% of MWPb)Minimum number of cyclesAAS100 133 % 200 000ACBBS100 133 % 500 000BCCCS120 133 % and 120 %c500 000CCD DC 120 133 % 1 000 000aStandard or compact, e.g. CS is grade C and standard type.As shown in Table 4 and Table 8, standard types have larger outside diameters and larger bend rad
37、ii and compact types have smaller outside diameters and smaller bend radii.bMaximum working pressure.c120 % of the MWP shall be used for classes 350, 420, 490 and 560 instead of 133 %.Each class includes one of each type or both as shown in Table 3.Table 3 Type and maximum working pressureClass 35 7
38、0 140 210 250 280 350 420 490 560MWPa(MPa) 3,5 7 14 21 25 28 35 42 49 56MWPa(bar) 35 70 140 210 250 280 350 420 490 560Grade TypeAAS X X X X X X X X N/A N/AAC X X X X X X X X N/A N/ABBS X X X X X X X X N/A N/ABC X X X X X X X X N/A N/ACCS N/A N/A N/A X X X X X N/A N/ACC N/A N/A N/A X X X X X X XD DC
39、 N/A N/A N/A X X X X X N/A N/ANOTE X = Applicable; N/A = Not applicable.aMaximum working pressure.5 Materials and construction5.1 HosesHoses shall consist of a hydraulic-fluid-resistant rubber lining, one or multiple layers of steel wire or textile and an oil-, abrasion- and weather-resistant rubber
40、 cover. A layer of other materials on the rubber cover is allowed for improved resistance to abrasion or other.5.2 Hose assembliesHose assemblies shall only be manufactured using hose fittings which conform to the requirements of 7.2.1, 7.2.4 and 7.2.5. ISO 2014 All rights reserved 3Copyright Britis
41、h Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2014(E)Follow the manufacturers instructions for the proper preparation and fabrication of hose assemblies.
42、6 Dimensions and tolerances6.1 DiametersWhen measured in accordance with ISO 4671, the diameters of hoses shall conform to the values given in Table 4.4 ISO 2014 All rights reservedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo rep
43、roduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2014(E)Table4 Diameters of hosesNom-inalsizeInside diameter(allclasses)MaximumoutsidediameterofhosemmmmClass35Class70Class140Class210Class250Class280Class350Class420Class490Class560min.max.Stan-dardCom-pactStan
44、-dardCom-pactStan-dardCom-pactStan-dardCom-pactStan-dardCom-pactStan-dardCom-pactStan-dardCom-pactStan-dardCom-pactStan-dardCom-pactStan-dardCom-pact56,381012,516 192531,5385163 761024,66,17,79,312,315,518,625,031,437,750,463,174,6100,05,47,08,510,113,516,719,826,433,039,352,065,177,8103,21417 1921
45、2427 314053 59728410013011 1415 17 21 25 28 36 45 56 69 1417 1921 2427 314053 59728410011 1415 182225 29 3845 56 69 1417 1921 2429 33 41 54 59738410011 1415 17 2225 29 384956 70 1417 19232629 33 41 53 597285 11 1416 19222631394956 70 17 1920232629 3441 54 597390 15 15 16 192227 32 394956 70 17 19202
46、32629 3441 54 597390 15 15 16 192327 32 394956 70 17 19202327 29 3850 54 6075 90 15 15 16 21 25 28 36 45 525973 17 19202427 37 50 54 6075 80 15 15 1822243446 50 56 7277 30 36 45 52 30 36 45 52 ISO 2014 All rights reserved 5Copyright British Standards Institution Provided by IHS under license with BS
47、I - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 18752:2014ISO 18752:2014(E)6.2 Cover thicknessWhen measured in accordance with ISO 4671, the outer cover thickness of hoses shall conform to the values given in Table 5. Standard types may
48、 be produced with either thick or thin covers, the tolerance limits for thin-cover standard types being the same as the tolerance limits for compact types.Table 5 Cover thicknessNominal sizeCover thickness mmStandard (thick cover) Standard (thin cover) Compactmin. max. min. max. min. max.56,381012,516192531,5385163761021,51,51,51,51,5
