1、BS ISO 5675:2008ICS 65.060.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAgricultural tractorsand machinery General purposequick-action hydrauliccouplersThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 200
2、8 BSI 2008ISBN 978 0 580 57779 6Amendments/corrigenda issued since publicationDate CommentsBS ISO 5675:2008National forewordThis British Standard is the UK implementation of ISO 5675:2008. Itsupersedes BS 4742-2:1993 which is withdrawn.The UK participation in its preparation was entrusted to Technic
3、alCommittee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.C
4、ompliance with a British Standard cannot confer immunityfrom legal obligations.30 SeptemberBS ISO 5675:2008INTERNATIONALSTANDARDISO5675Third edition2008-08-01Reference numberISO 5675:2008(E) ISO 2008Agricultural tractors and machinery General purpose quick-action hydraulic couplersTracteurs et matri
5、els agricoles Coupleurs hydrauliques usage gnralBS ISO 5675:2008ISO 5675:2008(E)ii ISO 2008 All rights reservedPDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shallnot be edited unless the typefaces which
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8、oblem relating to it is found, please inform the Central Secretariat at the address given below.COPYRIGHT PROTECTED DOCUMENT ISO 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical, inclu
9、ding photocopying and microfilm, without permission in writing from either ISO at the address below orISOs 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 Sw
10、itzerlandBS ISO 5675:2008ISO 5675:2008(E) ISO 2008 All rights reserved iiiForewordISO (the 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 ISOtechn
11、ical committees. Each member body interested in a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental andnon-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely wi
12、th the InternationalElectrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft Interna
13、tional Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as anInternational Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be t
14、he subject of patentrights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 5675 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture andforestry, Subcommittee SC 4, Tractors.This third edition cancels and replaces the second editi
15、on (ISO 5675:1992), which has been technically revised.BS ISO 5675:2008.iv BS ISO 5675:2008INTERNATIONAL STANDARD ISO 5675:2008(E) ISO 2008 All rights reserved 1Agricultural tractors and machinery General purpose quick-action hydraulic couplers1ScopeThis International Standard specifies the essentia
16、l interface dimensions, as defined in ISO 7241-1, and theoperating requirements for hydraulic couplers employed to transmit hydraulic power from agricultural tractors toagricultural machinery. It is applicable to couplers used in hydraulic lines other than those used for brakingcircuits (see ISO 567
17、6).NOTE All hydraulic couplers need to be connected and disconnected frequently to allow the transfer of machinery from onetractor to another without the use of tools or special devices.2 Normative referencesThe following referenced documents are indispensable for the application of this document. F
18、or datedreferences, only the edition cited applies. For undated references, the latest edition of the referenced document(including any amendments) applies.ISO 7241-1:1987, Hydraulic fluid power Quick-action couplings Part 1: Dimensions and requirementsISO 7241-2:2000, Hydraulic fluid power Quick-ac
19、tion couplings Part 2: Test methods3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1 coupler female partfemale partpart that has a cavity to receive the male part3.2 coupler male partmale partprobe that fits and locks into the cavity of the femal
20、e part4 Requirements4.1 Dimensional requirementsThe dimensions of the coupler male part shall be in accordance with ISO 7241-1:1987, Table 1 and Figure 1,series “A”, for sizes 12,5 and 20. In addition, the coupler male part dimension shall be in accordance withFigure 1 and Table 1 of this Internatio
21、nal Standard, in order to be compatible with dust protection devices.BS ISO 5675:2008ISO 5675:2008(E)2 ISO 2008 All rights reservedAny female part shall couple with any male part when both conform to this International Standard.4.2 Operating requirements4.2.1 The coupler shall be in accordance with
22、the operating requirements of ISO 7241-1, series “A”.4.2.2 The pressure drop through the coupler shall not be greater than ( ) with a flow of for size 12,5 and for size 20. The pressure drop shall be measured in accordance with ISO 7241-2.The requirements of this International Standard mean that two
23、 coupler parts, one having a conical and the othera ball valve, may be coupled together. Care should then be taken to ensure that these requirements are fulfilled.4.2.3 It shall be possible to connect the coupler by hand with a pressure of ( ) in the male part.The connecting force shall not exceed w
24、ith a pressure, in the female part, of ( ) for size12,5 and of ( ) for size 20.4.2.4 The disconnecting force shall not exceed for size 12,5 and for size 20 when subjected toan internal pressure of ( ) in the male part. The disconnecting force shall be measured inaccordance with ISO 7241-2.4.2.5 The
25、spillage at an internal pressure of ( ) shall be in accordance with Table 2. A spillagetest shall be conducted in accordance with ISO 7241-2.For dimension , see Table 1.aDimension in accordance with ISO 7241-1, series “A”.Figure 1 Coupler male part dimensionsTable 1 Dimension Dimensions in millimetr
26、esNominal size Dimension(according to ISO 7241-1)12,520NOTE 1 The size designation corresponds to the nominal inside diameter of the hose recommended for use with the coupling, asspecified in ISO 4397.NOTE 2 Similar couplers are described in ISO 7241-1; however, couplers conforming to ISO 7241-1 mig
27、ht not conform to thisInternational Standard.PPPlessorequalslant31lessorequalslant380,35 MPa 3,5 bar 45 l/min70 l/min16 MPa 160 bar200 N 0,25 MPa 2,5 bar0,100 MPa 1 bar1,7 kN 2,5 kN17,5 MPa 175 bar0,1 MPa 1 barBS ISO 5675:2008ISO 5675:2008(E) ISO 2008 All rights reserved 34.2.6 The spillage when dis
28、connecting with an internal pressure of ( ) shall be in accordancewith Table 2.4.2.7 The force required to fully open the valve in the male part, when there is no internal pressure in the malepart, shall not exceed for size 12,5 and for size 20.4.2.8 The coupling shall not check-off (closure of the
29、valve) when flowing oil in the male-to-female direction atflow rates less than for size 12,5 and less than for size 20. Fluid viscosity for this requirementshall be in accordance with ISO 7241-2:2000, 5.2.5 Location on tractor5.1 Rear-mounted and side couplerThe female part of the coupler shall be m
30、ounted within the area described in Figure 2.Table 2 Spillage on disconnect with pressureNominal size Spillage when disconnecting at(according to ISO 7241-1)12,520Dimensions in millimetresKey1 tractor drawbar, located per nominal dimensions given in ISO 6489-32 area of location of rear-mounted coupl
31、ers3 area of location of side-mounted couplersFigure 2 Location of rear-mounted and side coupler17,5 MPa 175 bar0,1 MPa 17,5 MPa2,5 ml 4,0 ml9,0 ml 12,5 ml45 N 70 N190 l/min 250 l/minBS ISO 5675:2008ISO 5675:2008(E)4 ISO 2008 All rights reserved5.2 Front-mounted couplerThe female part of the coupler
32、 shall be mounted as close as practicable to the longitudinal axis of the tractor andto the upper link point. If it is not mounted in the longitudinal axis, it should be positioned to the right-hand side,when viewed from the driving position. If so positioned to the right-hand side, it shall be not
33、more than rearwards from the link point of the lower link with the lower links horizontal.1 200 mmBS ISO 5675:2008ISO 5675:2008(E) ISO 2008 All rights reserved 5Bibliography1 ISO 4397:1993, Fluid power systems and components Connectors and associated components Nominal outside diameters of tubes and
34、 nominal inside diameters of hoses2 ISO 5676:1983, Tractors and machinery for agriculture and forestry Hydraulic coupling Brakingcircuit3 ISO 6489-3:2004, Agricultural vehicles Mechanical connections between towed and towing vehicles Part 3: Tractor drawbarBS ISO 5675:2008ISO 5675:2008(E)ICS 65.060.
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