1、BS ISO 12151-6:2009ICS 23.040.70; 23.100.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDConnections for hydraulic fluid power and general use Hose fittingsPart 6: Hose fittings with ISO 8434-6 60cone endsThis British Standardwas published under theauthority o
2、f the StandardsPolicy and StrategyCommittee on 31 December2009 BSI 2009ISBN 978 0 580 53194 1Amendments/corrigenda issued since publicationDate CommentsBS ISO 12151-6:2009National forewordThis British Standard is the UK implementation of ISO 12151-6:2009.The UK participation in its preparation was e
3、ntrusted to TechnicalCommittee MCE/18/-/4, Connectors and associated components.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 corre
4、ct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS ISO 12151-6:2009Reference numberISO 12151-6:2009(E)ISO 2009INTERNATIONAL STANDARD ISO12151-6First edition2009-07-15Connections for hydraulic fluid power and general use Hose fittings Part 6: Hose fittin
5、gs with ISO 8434-6 60 cone ends Raccordements pour transmissions hydrauliques et applications gnrales Flexibles de raccordement Partie 6: Flexibles avec embouts cne 60 conformes lISO 8434-6 BS ISO 12151-6:2009ISO 12151-6:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accorda
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8、g. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2009 All rights reserved. Unless otherwise s
9、pecified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright offic
10、e Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedBS ISO 12151-6:2009ISO 12151-6:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2
11、 Normative references 1 3 Terms and definitions .2 4 Performance requirements .2 5 Designation of hose fittings .2 6 Design .3 7 Manufacture3 8 Assembly instructions 4 9 Procurement information5 10 Marking .5 11 Identification statement (reference to this part of ISO 12151) .5 Bibliography 12 BS ISO
12、 12151-6:2009ISO 12151-6:2009(E) iv ISO 2009 All rights reservedForeword ISO (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 ISO technical co
13、mmittees. 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-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with th
14、e 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 2. The main task of technical committees is to prepare International Standards. Draft Internati
15、onal 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. Attention is drawn to the possibility that some of the elements of this document may be
16、the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 12151-6 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and components. ISO 12151 consists of the following parts
17、, under the general title Connections for hydraulic fluid power and general use Hose fittings: Part 1: Hose fittings with ISO 8434-3 O-ring face seal ends Part 2: Hose fittings with ISO 8434-1 and ISO 8434-4 24 cone connector ends with O-rings Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flan
18、ge ends Part 4: Hose fittings with ISO 6149 metric stud ends Part 5: Hose fittings with ISO 8434-2 37 flared ends Part 6: Hose fittings with ISO 8434-6 60 cone ends BS ISO 12151-6:2009ISO 12151-6:2009(E) ISO 2009 All rights reserved vIntroduction In hydraulic fluid power systems, power is transmitte
19、d and controlled through a liquid under pressure within an enclosed circuit. In general applications, the fluid may be conveyed under pressure. Components are connected through their ports by stud ends on fluid conductor connectors to tubes or pipes or to hose fittings and hoses. ISO/TC 131/SC 4 rec
20、ommends that hose fittings that conform to ISO 12151-1 and ISO 12151-2 be used because these International Standards represent the state of the art. However, this part of ISO 12151 has been developed because it specifies hose fittings that are currently used worldwide. BS ISO 12151-6:2009BS ISO 1215
21、1-6:2009INTERNATIONAL STANDARD ISO 12151-6:2009(E) ISO 2009 All rights reserved 1Connections for hydraulic fluid power and general use Hose fittings Part 6: Hose fittings with ISO 8434-6 60 cone ends 1 Scope This part of ISO 12151 specifies the general and dimensional requirements for the design and
22、 performance of hose fittings made of carbon steel with 60 cone ends for hose sizes 5 to 51 inclusive, in accordance with ISO 4397. These hose fittings (see Figure 1 for a typical example) are for use in hydraulic fluid power systems with hoses that meet the requirements of the respective hose stand
23、ards and in general applications with suitable hoses. NOTE 1 Other materials can be supplied as agreed between the manufacturer and user. NOTE 2 For hose fittings used in hydraulic and pneumatic braking systems on road vehicles (as defined in the scope of ISO/TC 22), see ISO 4038, ISO 4039-1 and ISO
24、 4039-2. 2 Normative references The 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 document (including any amendments) applies. ISO 228-1, Pipe t
25、hreads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation ISO 4397, Fluid power systems and components Connectors and associated components Nominal outside diameters of tubes and nominal sizes of hoses 1)ISO 4759-1, Tolerances for fasteners Part 1:
26、 Bolts, screws, studs and nuts Product grades A, B and C ISO 5598, Fluid power systems and components Vocabulary ISO 6605, Hydraulic fluid power Hoses and hose assemblies Test methods ISO 8434-6, Metallic tube connections for fluid power and general use Part 6: 60 cone connectors with or without O-r
27、ing 2)ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests ISO 19879, Metallic tube connections for fluid power and general use Test methods for hydraulic fluid power connections 1) Under development. (Revision of ISO 4397:1993) 2) To be published. BS ISO 12151-6:2009ISO 12151-6:2009
28、(E) 2 ISO 2009 All rights reserved3 Terms and definitions For the purposes of this part of ISO 12151, the terms and definitions given in ISO 5598 shall apply. 4 Performance requirements Hose assemblies shall meet the performance requirements specified in the appropriate hose specification without le
29、akage or failure when tested in accordance with ISO 6605. The rated (working) pressure of the hose assembly shall be the lower of the rated pressure given for its size in ISO 8434-6 and the working pressure in the relevant hose specification. The rated pressure of the hose fitting shall be verified
30、through testing conducted in accordance with ISO 19879, but the entire hose assembly shall be tested in accordance with ISO 6605. During the cyclic endurance test, the hose assembly shall be subjected to the number of cycles specified in the relevant hose specification. 5 Designation of hose fitting
31、s 5.1 Hose fittings shall be designated by an alphanumeric code to facilitate ordering. They shall be designated by the phrase “Hose fitting,” followed by “ISO 12151-6”, followed by a spaced hyphen, then the connection end type, shape and sealing style letter symbols (see 5.4), followed by another s
32、paced hyphen, the 60 cone connector end size (nominal tube outside diameter in accordance with ISO 8434-6) and the hose size (nominal hose inside diameter in accordance with ISO 4397), each separated by a multiplication symbol (). EXAMPLE A swivel hose fitting O-ring sealing with 45 elbow, for 12 mm
33、 nominal OD tubing and 12,5 mm nominal ID hose, is designated as follows: Hose fitting ISO 12151-6 - SWE45A - 12 12,5 5.2 The letter symbol designation of the hose fitting shall consist of the connection end type, immediately followed by the shape of the fitting and the nut style, where applicable.
34、5.3 Tube ends are assumed to be male and thus do not need to be included in the code. However, if another end is involved, it shall be designated. 5.4 The following letter symbols shall be used: Connection end type Letter Swivel SW Shape Letter Straight S 90 elbow E 45 elbow E45 Sealing Style O-ring
35、 A Non O-ring B BS ISO 12151-6:2009ISO 12151-6:2009(E) ISO 2009 All rights reserved 36 Design 6.1 Figure 1 shows a typical example of a hose fitting with a 60 cone connection end. Key 1 hose fitting 2 O-ring seal 3 nut 4 straight stud connector conforming to ISO 8434-6 5 port conforming to ISO 6149-
36、1 Figure 1 Typical example of hose fitting with 60 cone connection 6.2 Hose fitting dimensions shown in Figures 2 through 5 shall conform to the dimensions in Tables 1 through 4 and to the relevant dimensions in ISO 8434-6. 6.3 Hex tolerances across flats shall be in accordance with ISO 4759-1, prod
37、uct grade C. Minimum across-corner hex diameters are 1,092 times the nominal width across flats. The minimum side flat is 0,43 times the nominal width across flats. 6.4 Angular tolerances on axes of ends of elbows shall be 3 for all sizes. 6.5 Details of contour shall be as chosen by the manufacture
38、r, provided that the dimensions given in Tables 1 through 4 are maintained. 6.6 The screw threads on the connection ends of the hose fittings shall be inch screw threads in accordance with ISO 228-1. 7 Manufacture 7.1 Construction Hose fittings may be forged, cold-formed, machined from barstock or m
39、anufactured from multiple components. BS ISO 12151-6:2009ISO 12151-6:2009(E) 4 ISO 2009 All rights reserved7.2 Workmanship Workmanship shall conform to the best commercial practice to produce high-quality hose fittings. Hose fittings shall be free from visual contaminants, all hanging burrs, loose s
40、cale and slivers which can be dislodged in use and any other defects that might affect the function of the parts. All machined surfaces shall have a surface roughness value of Ra max 6,3 m, except where otherwise specified. 7.3 Finish The external surface and threads of all carbon steel parts shall
41、be plated or coated with a suitable material that passes a 72 h neutral salt spray test in accordance with ISO 9227, unless otherwise agreed on by the manufacturer and the user. Any appearance of red rust during the salt spray test on any area, except those noted below, shall be considered a failure
42、: all internal fluid passages; edges, such as hex points, serrations and crest of threads, where there may be mechanical deformation of the plating or coating typical of mass-produced parts or shipping effects; areas where there is a mechanical deformation of the plating or coating caused by crimpin
43、g, flaring, bending and other post-plate metal forming operations; areas where the parts are suspended or affixed in the test chamber where condensate can accumulate. Internal fluid passages shall be protected from corrosion during storage. Cadmium plating is not allowed because of environmental con
44、cerns. Parts manufactured in accordance with this part of ISO 12151 shall not be cadmium-plated. Hexavalent chromate coatings are not preferred because of environmental concerns. Changes in plating may affect assembly torques and require requalification, when applicable. 7.4 Protection By a method a
45、greed upon between supplier and purchaser, the cone face of the hose fittings and threads (both internal and external) shall be protected by the manufacturer from nicks and scratches that can be detrimental to the function of the hose fitting. Passages shall be securely covered to prevent the entran
46、ce of dirt or other contaminants. Covers that contribute to contamination shall not be used. Braze-on-type connectors require protection on the sealing face and threaded end only. Nuts and sleeves that are furnished separately from the connector shall be protected from rust but do not require cappin
47、g. 8 Assembly instructions The assembly of the hose fittings to other connectors or tubes shall be carried out without external loads. The manufacturer shall draw up assembly instructions for the use of hose fittings. These instructions shall include at least the following: instructions regarding th
48、e assembly of the hose fitting, such as number of wrenching turns or assembly torque; recommendations regarding the tools for use during assembly. When hose fittings are used with tubes, follow the instructions related to material, preparation and attachment given in ISO 8434-6, as appropriate. BS I
49、SO 12151-6:2009ISO 12151-6:2009(E) ISO 2009 All rights reserved 59 Procurement information The following minimum information should be supplied by the purchaser when making an inquiry or placing an order: description of hose fitting (using the designation in accordance with Clause 5); material of hose fitting (if other than carbon steel); hose type and size; fluid being conveyed; rated pressure; working temperature (ambient and of the fluid).
