EN ISO 1179-4-2008 en Connections for general use and fluid power - Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing - Part 4 Stud ends for gen.pdf

1、BRITISH STANDARDBS EN ISO 1179-4:2008Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 4: Stud ends for general use only with metal-to-metal sealing (type B)ICS 23.100.40g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g5

2、0g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58IncorporatingcorrigendumMay 2010National forewordThis British Standard is the UK implementation of EN ISO 1179-4:2008. It is identical to ISO 117

3、9-4:2007.The UK participation in its preparation was entrusted by Technical Committee MCE/18, Fluid power systems and components, to Subcommittee MCE/18/-/4, Connectors and associated components.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This

4、 publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 1179-4:2008This British Standard was published under the authority of the

5、Standards Policy and Strategy Committee on 28 February 2009 BSI 2010Amendments/corrigenda issued since publicationDate Comments 31 May 2010 Supersession text deletedISBN 978 0 580 70823 7EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 1179-4April 2008ICS 23.100.40English VersionConnections for

6、 general use and fluid power - Ports and studends with ISO 228-1 threads with elastomeric or metal-to-metalsealing - Part 4: Stud ends for general use only with metal-to-metal sealing (type B) (ISO 1179-4:2007)Raccordements pour applications gnrales ettransmissions hydrauliques et pneumatiques - Ori

7、fices etlments mles filetage ISO 228-1 et joint en lastomreou tanchit mtal sur mtal - Partie 4: lments mlespour applications gnrales uniquement avec tanchitmtal sur mtal (type B) (ISO 1179-4:2007)Leitungsanschlsse fr allgemeine Anwendung undFluidtechnik - Einschraublcher und Einschraubzapfen mitGewi

8、nde nach ISO 228-1 und Elastomerdichtung odermetallener Dichtkante - Teil 4: Einschraubzapfen mitmetallener Dichtkante (Form B), nur fr allgemeineAnwendung (ISO 1179-4:2007)This European Standard was approved by CEN on 25 March 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regul

9、ations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This Eur

10、opean Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the nati

11、onal standards bodies of Austria, Belgium, Bulgaria, 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 Un

12、ited Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 1179-4:200

13、8: E3 Foreword The text of ISO 1179-4:2007 has been prepared by Technical Committee ISO/TC 131 “Fluid power systems” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 1179-4:2008 by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes”

14、 the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. Attenti

15、on is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of th

16、e following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovaki

17、a, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1179-4:2007 has been approved by CEN as a EN ISO 1179-4:2008 without any modification. BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)Reference numberISO 1179-4:2007(E)INTERNATIONAL STANDARD ISO1179-4First

18、 edition2007-08-15Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 4: Stud ends for general use only with metal-to-metal sealing (type B) Raccordements pour applications gnrales et transmissions hydrauliques et pne

19、umatiques Orifices et lments mles filetage ISO 228-1 et joint en lastomre ou tanchit mtal sur mtal Partie 4: lments mles pour applications gnrales uniquement avec tanchit mtal sur mtal (type B) BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)ii BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)iiiForeword ISO (

20、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 committees. Each member body interested in a subject for which a technical commi

21、ttee 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 the International Electrotechnical Commission (IEC) on all matters of electrotec

22、hnical 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 International Standards adopted by the technical committees are circulated to the membe

23、r 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 the subject of patent rights. ISO shall not be held responsible for identifyin

24、g any or all such patent rights. ISO 1179-4 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and components. This first edition of ISO 1179-4, together with ISO 1179-1, ISO 1179-2 and ISO 1179-3, cancels and replaces ISO 1179:198

25、1 which has been technically revised. ISO 1179 consists of the following parts, under the general title Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing: Part 1: Threaded ports Part 2: Heavy-duty (S series) and light-du

26、ty (L series) stud ends with elastomeric sealing (type E) Part 3: Light-duty (L series) stud ends with sealing by O-ring with retaining ring (types G and H) Part 4: Stud ends for general use only with metal-to-metal sealing (type B) BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)iv Introduction In fluid

27、 power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressure within a circuit. In general applications, a fluid may be conveyed under pressure. Components are connected through their threaded ports by fluid conductor connectors to tubes and pipes or to hose fitt

28、ings and hoses. For threaded ports and stud ends specified in new designs in hydraulic fluid power applications, ISO/TC 131/SC 4 recommends that the ISO 6149 series be used because these International Standards specify ports and stud ends with metric threads and O-ring sealing and because the sub-co

29、mmittee would like to help users by recommending one preferred system. ISO/TC 131/SC 4 further recommends that threaded ports and stud ends in accordance with the ISO 1179 series, ISO 9974 series and ISO 11926 series not be used for new designs in hydraulic fluid power applications; these Internatio

30、nal Standards will be maintained because they specify ports and stud ends that are currently used in hydraulic systems worldwide. For threaded ports and stud ends specified in new designs in pneumatic fluid power applications, ISO/TC 131/SC 4 recommends that ISO 16030 be used, except where products

31、are to interface with ISO 7-1 threads, because the sub-committee would like to help users by recommending one preferred system. ISO/TC 131/SC 4 further recommends that threaded ports and stud ends in accordance with the ISO 1179 series not be used for new designs in pneumatic fluid power application

32、s; these International Standards will be maintained because they specify ports and stud ends that are currently used in pneumatic systems worldwide. Significant testing over more than 30 years of use has confirmed the performance requirements of connection ends made from carbon steel. The stud end c

33、onnections specified in ISO 1179 parts 2, 3 and 4 apply to connectors detailed in ISO 8434 parts 1, 2 and 4. BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)1Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 4: Stud ends

34、 for general use only with metal-to-metal sealing (type B) 1 Scope This part of ISO 1179 specifies dimensions, performance requirements and test procedures for stud ends with ISO 228-1 threads and metal-to-metal sealing for general use only. These stud ends should not be used for leak-free hydraulic

35、 fluid power applications. Stud ends in accordance with this part of ISO 1179 may be used at working pressures up to 40 MPa (400 bar) for the S series, up to 25 MPa (250 bar) for the L series, and up to 10 MPa (100 bar) for the LL series. The permissible working pressure depends upon size, materials

36、, design, working conditions, application, etc. Conformance to the dimensional information in this part of ISO 1179 does not guarantee rated performance. Each manufacturer shall perform tests according to the specification contained in this part of ISO 1179 in order to ensure that components made to

37、 this part of ISO 1179 comply with the performance ratings. NOTE 1 This part of ISO 1179 applies to connectors detailed in ISO 8434-1 and ISO 8434-2. NOTE 2 The introduction of this part of ISO 1179 gives recommendations for ports and stud ends to be used for new designs in hydraulic and pneumatic f

38、luid power applications. 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. I

39、SO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation ISO 4759-1:2000, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 5598, Fluid power systems and components Vocabulary ISO 19879, M

40、etallic tube connections for fluid power and general use Test methods for hydraulic fluid power connections BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)2 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. 4 Dimensions ISO 1179-4 stud ends sha

41、ll conform to the dimensions given in Figure 1 and Table 1. Hexagonal tolerances across flats shall be according to ISO 4759-1:2000, product grade C. 5 Requirements 5.1 Working pressure ISO 1179-4 stud ends made of low carbon steel shall be designed for use at the working pressures given in Table 2.

42、 5.2 Performance ISO 1179-4 stud ends made of low carbon steel shall meet or exceed the burst and impulse pressures given in Table 2, when tested in accordance with Clause 7 and assembled using the torques in Table 3. 6 Metal-to-metal sealing The machined seal edge is compressed during assembly. Thi

43、s causes damage to the sealing face of the port. Safe reassembly is not possible. A high surface pressure is required, otherwise leakage is possible. 7 Test methods 7.1 Burst pressure test (failure pressure test) 7.1.1 Principle Three samples shall be tested to confirm that ISO 1179-4 stud ends meet

44、 or exceed a ratio of 4:1 between the burst and working pressures. 7.1.2 Materials Test block and stud ends Test blocks shall be in accordance with the requirements specified in ISO 19879. Stud ends shall be made from low carbon steel and be plated. 7.1.3 Procedure 7.1.3.1 Thread lubrication For tes

45、ting only, threads and contact surfaces shall be lubricated in accordance with the requirements of ISO 19879. 7.1.3.2 Stud end torque Stud ends shall be tested after application of the torques given in Table 3. BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)37.1.3.3 Pressure rise rate The rate of pressu

46、re rise shall be in accordance with the requirements of ISO 19879. 7.2 Cyclic endurance (impulse) test 7.2.1 Principle Six samples, when tested at their respective impulse pressures, shall pass a cyclic endurance test of 1 000 000 cycles. 7.2.2 Materials Use the same materials as specified in 7.1.2.

47、 7.2.3 Procedure 7.2.3.1 Thread lubrication Apply lubricant as specified in 7.1.3.1. 7.2.3.2 Stud end torques Apply torque as specified in 7.1.3.2. 7.2.3.3 Cycle and pressure rise rate The cycle rate shall be in accordance with the requirements of ISO 19879, except the rate of pressure rise shall be

48、 adjusted accordingly. 7.3 Test report Test results and conditions shall be reported on the test data form given in Annex A. 7.4 Re-use of components Parts used for cyclic endurance or burst test shall not be tested further, used or returned to stock. 8 Designation of stud ends Stud ends shall be de

49、signated by: a) “Stud end”; b) reference to this part of ISO 1179, i.e. ISO 1179-4; c) thread size; d) the letter symbol for the relevant series. EXAMPLE A stud end with a G 3/8 A thread in accordance with ISO 228-1 is designated as follows: Stud end ISO 1179-4 - G 3/8 A-S BS EN ISO 1179-4:2008EN ISO 1179-4:2008 (E)4 9 Identification statement (reference to this part of ISO 1179) Use the following statement in test reports, catalogues and sales literature when electing to comply with this part