1、BRITISH STANDARD BS ISO 15171-1:1999 Connections for fluid power and general use Hydraulic couplings for diagnostic purposes Part 1: Coupling not for connection under pressure ICS 23.100.40BSISO 15171-1:1999 This British Standard, having been prepared under the directionof the Engineering SectorComm
2、ittee, was published under the authorityofthe Standards Committee and comes into effect on 15 October 1999 BSI 04-2000 ISBN 0 580 32980 1 National foreword This British Standard reproduces verbatim ISO 15171-1:1999 and implements it as the UK national standard. The UK participation in its preparatio
3、n was entrusted to Technical Committee MCE/18, Fluid power systems and components, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interest
4、s informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred
5、 to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a cont
6、ract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theISO title page, pages ii to
7、iv, pages 1 to 3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSISO 15171-1:1999 BSI 04-2000 i Content
8、s Page National foreword Inside front cover Foreword iii Text of ISO 15171-1 1ii blankBSISO 15171-1:1999 ii BSI 04-2000 Contents Page Foreword iii Introduction 1 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Performance requirements 2 5 Design 2 6 Manufacture 2 7 Designation of coup
9、lings 2 8 Marking 2 9 Identification statement 2 Figure 1 Dimensions and tolerances of male half of diagnostic coupling 3BSISO 15171-1:1999 BSI 04-2000 iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). Th
10、e 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. International organizations, governmental and non-gov
11、ernmental, 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 rules given in the ISO/IEC Directives, Part 3.
12、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 least 75 % of the member bodies casting a vote. International Standard ISO 15171-1 was prepared by Technical Committee IS
13、O/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and components. ISO 15171 consists of the following parts, under the general title Connections for fluid power and general use Hydraulic couplings for diagnostic purposes: Part 1: Coupling not for connection under pres
14、sure; Part 2: Coupling with M16 2 end for connection under pressure.iv blankBSISO 15171-1:1999 BSI 04-2000 1 Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circuit. In general applications, a fluid may be conveyed
15、 under pressure. Components are equipped with ports providing diagnostic points in a hydraulic system. Diagnostic couplings may be installed to aid in the diagnosis of hydraulic systems. 1 Scope This part of ISO 15171 specifies dimensions, performance requirements and test procedures for the male qu
16、ick-action half of a metric coupling with an M14 1,5 straight stud end to mate with an ISO6149-1 port, to be used for diagnostic purposes. Couplings in accordance with this part of ISO 15171 are not designed to connect under pressure. The coupling is designed for use in hydraulic systems that use mi
17、neral oil. NOTEUse of this coupling with fluids other than mineral oil requires agreement between the supplier and the purchaser. This part of ISO 15171 does not apply to the female half of the mating hydraulic quick-action coupling, which is not on the machine. Couplings in accordance with this par
18、t of ISO 15171 may be used at a maximum working pressure of40MPa 400 bar 1) . The permissible working pressure depends upon the materials, design, working conditions, application, etc. Conformance to the dimensional information in this part of ISO 15171 does not guarantee rated performance. Each man
19、ufacturer should perform testing in accordance with the specification contained in this part of ISO 15171 to assure that components comply with the performance rating. 2 Normative references The following normative documents contain certainprovisions which, through reference in this text, constitute
20、 provisions of this part of ISO 15171. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 15171 are encouraged to investigate the possibility of applying the most recent editions of the nor
21、mative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 1629:1995, Rubber and latices Nomenclature. ISO 5598:1985, Fluid power systems and com
22、ponents Vocabulary. ISO 6149-1:, Connections for fluid power and general use Ports and stud ends with ISO 261 threads and O-ring sealing Part 1: Port with O-ring seal in truncated housing 2) . ISO 6149-2:, Connections for fluid power and general use Ports and stud ends with ISO 261 threads and O-rin
23、g sealing Part 2: Dimensions, design, test methods and requirements for heavy-duty (S series) stud ends 2) . ISO 8434-5:1995, Metallic tube connections for fluid power and general use Part 5: Test methods for threaded hydraulic fluid power connections. ISO 9227:1990, Corrosion tests in artificial at
24、mospheres Salt spray tests. 3 Terms and definitions For the purposes of this part of ISO 15171, the terms and definitions given in ISO 5598 and the following apply. 3.1 quick-action joining of two components in a fashion with only hands and without wrenches and other mechanical means 1) 1 bar = 0,1
25、MPa = 10 5Pa; 1 Pa = 1 N/m 2 2) To be published. (Revision of ISO 6149-1:1993)BSISO 15171-1:1999 2 BSI 04-2000 4 Performance requirements 4.1 Working pressure and temperature Couplings shall be designed for use at a maximum working pressure of 40 MPa (400 bar) within a temperature range between 20 C
26、 and + 120 C. NOTEThe temperature range of couplings with elastomeric seals depends on the limits of the temperature range of the seals. 4.2 Rated flow The coupling shall be rated to handle a flow of 3 l/min at a maximum pressure drop of500kPa(5bar), with a maximum rated flow without malfunction of
27、15 l/min. 4.3 Burst and cyclic endurance (impulse) pressures The male half of the coupling shall meet at least a burst pressure of 160 MPa (1600 bar) and a cyclic endurance (impulse) pressure of 53,2 MPa (532 bar) when tested in accordance with 4.4. 4.4 Test methods Testing shall be conducted in acc
28、ordance with ISO8434-5 for burst, cyclic endurance (impulse) and vacuum. The test samples shall be tightened to the torque requirement given in ISO 6149-2 for theM14 1,5 size stud end. After the cyclic endurance test, it shall be possible to connect and disconnect the coupling with the female half w
29、ithout leakage, binding or malfunction. Test results shall be reported using the form given in ISO 8434-5. 5 Design Design and dimensions shall conform to those given in Figure 1. Stud end and O-ring shall be in accordance with ISO 6149-2. Unless otherwise agreed upon between the supplier and purcha
30、ser, seals for stud ends shall be included in the delivery. 6 Manufacture 6.1 Construction Couplings may be made by forging or cold forming, or be machined from bar stock. 6.2 Workmanship Workmanship shall conform to the best commercial practice to produce high-quality parts. Couplings shall be free
31、 from visual contaminants, all hanging burrs, loose scale and slivers that might be dislodged in use, and any other defects that might affect the functioning of the parts. Unless otherwise specified, surface finish on all surfaces shall be Ra u 6,3 4m. 6.3 Finish The external surface and threads on
32、all couplings shall pass a minimum 72-h salt spray test in accordance with ISO 9227, unless otherwise agreed upon by the manufacturer and the user. Any appearance of red rust during the salt spray test shall be considered failure. Fluid passages shall be excluded from plating or coating requirements
33、 but shall be protected with a rust inhibitor. Corrosion protection requirements do not apply to corners or edges such as hex points, serrations and the crests of threads. 7 Designation of couplings When ordering couplings conforming to this part of ISO 15171, a designation consisting of the number
34、of this part of ISO 15171, followed by a spaced hyphen, followed by the material designation, in accordance with ISO 1629, of the required sealing of the stud end, shall be used. EXAMPLEISO 15171-1 NBR 8 Marking Couplings shall be permanently marked with the manufacturers name or trademark. 9 Identi
35、fication statement (reference to this part of ISO 15171) Use the following statement in test reports, catalogues and sales literature when electing to comply with this part of ISO 15171: “Coupling for diagnostic purposes in accordance with ISO 15171-1:1999, Connections for fluid power and general us
36、e Hydraulic couplings for diagnostic purposes Part 1: Coupling not for connection under pressure.”BSISO 15171-1:1999 BSI 04-2000 3 Figure 1 Dimensions and tolerances of male half of diagnostic couplingBS ISO 15171-1:1999 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is
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