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1、BRITISH STANDARD BS EN ISO 1179-3:2008 Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 3: Light-duty (L series) stud ends with sealing by O-ring with retaining ring (types G and H) ICS 23.100.40 ? Licensed CopyChi
2、nese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI BS EN ISO 1179-3:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2009 BSI 2009 ISBN 978 0 580 55547 3 National foreword Amendments issued since public
3、ation Amd. No. DateComments ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1179-3 April 2008 ICS 23.100.40 English Version Connections for general use and fluid
4、power - Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing - Part 3: Light-duty (L series) stud ends with sealing by O-ring with retaining ring (types G and H) (ISO 1179-3:2007) Raccordements pour applications gnrales et transmissions hydrauliques et pneumatiques -
5、 Orifices et lments mles filetage ISO 228-1 et joint en lastomre ou tanchit mtal sur mtal - Partie 3: lments mles srie lgre (srie L) avec tanchit par joint torique et bague de retenue (types G et H) (ISO 1179-3:2007) Leitungsanschlsse fr allgemeine Anwendung und Fluidtechnik - Einschraublcher und Ei
6、nschraubzapfen mit Gewinde nach ISO 228-1 und Elastomerdichtung oder metallener Dichtkante - Teil 3: Einschraubzapfen mit O- Ring-Dichtung mit Sttzring (Formen G und H), leichte Reihe (L) (ISO 1179-3:2007) This European Standard was approved by CEN on 25 March 2008. CEN members are bound to comply w
7、ith the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management
8、Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the off
9、icial versions. CEN members are the national 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, S
10、lovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for C
11、EN national Members. Ref. No. EN ISO 1179-3:2008: E BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI EN ISO 1179-3:2008 (E) 3 Foreword The text of ISO 1179-3:2007 has been prepared by Technical Committee ISO/TC 131 “Fluid power systems”
12、 of the International Organization for Standardization (ISO) and has been taken over as EN ISO 1179-3:2008 by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes” the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, e
13、ither 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN a
14、nd/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 the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Repub
15、lic, 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 the United Kingdom. Endorsement notice The text of ISO 1179-3:2007 has b
16、een approved by CEN as a EN ISO 1179-3:2008 without any modification. BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI Reference number ISO 1179-3:2007(E) INTERNATIONAL STANDARD ISO 1179-3 First edition 2007-08-15 Connections for genera
17、l use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 3: Light-duty (L series) stud ends with sealing by O-ring with retaining ring (types G and H) Raccordements pour applications gnrales et transmissions hydrauliques et pneumatiques Orifice
18、s et lments mles filetage ISO 228-1 et joint en lastomre ou tanchit mtal sur mtal Partie 3: lments mles srie lgre (srie L) avec tanchit par joint torique et bague de retenue (types G et H) BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BS
19、I ii BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 2 4 Dimensions 2 5 Requirements 2 6 Sealing . 2 7 Test methods. 3 8 Design
20、ation of stud ends. 4 9 Identification statement (reference to this part of ISO 1179). 5 Annex A (normative) Test data form for ISO 1179-1 port and ISO 1179-3 stud ends 12 Bibliography. 13 BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BS
21、I iv Foreword 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 committees. Each member body interested in a subject for whic
22、h 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 the International Electrotechnical Commission (IEC) on all ma
23、tters 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 International Standards adopted by the technical committees are circ
24、ulated 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 the subject of patent rights. ISO shall not be held respons
25、ible for identifying any or all such patent rights. ISO 1179-3 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 1179-3, together with ISO 1179-1, ISO 1179-2 and ISO 1179-4, cancels and re
26、places ISO 1179:1981 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 s
27、eries) and light-duty (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 1179-3:2008 Licensed CopyChinese Unive
28、rsity of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI v Introduction In fluid 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 throu
29、gh their threaded ports by fluid conductor connectors to tubes and pipes or to hose fittings 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 s
30、pecify ports and stud ends with metric threads and O-ring sealing and 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, ISO 9974 series and ISO 11926 se
31、ries not be used for new designs in hydraulic fluid power applications; these International 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
32、 applications, ISO/TC 131/SC 4 recommends that ISO 16030 be used, except where products 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 w
33、ith the ISO 1179 series not be used for new designs in pneumatic fluid power applications; 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 confirme
34、d the performance requirements of connection ends made from carbon steel. The stud end connections specified in ISO 1179 parts 2, 3 and 4 apply to connectors detailed in ISO 8434 parts 1, 2 and 4. BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy
35、, (c) BSI blank BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI 1 Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 3: Light-duty (L series) stud ends
36、 with sealing by O-ring with retaining ring (types G and H) 1 Scope This part of ISO 1179 specifies dimensions, performance requirements and test procedures for non-adjustable and adjustable light-duty (L series) stud ends with ISO 228-1 threads with sealing by O-ring with retaining ring (types G an
37、d H, respectively). Light-duty (L series) stud ends in accordance with this part of ISO 1179 may be used at working pressures up to 31,5 MPa (315 bar) for non-adjustable stud ends (type G) and up to 20 MPa (200 bar) for adjustable stud ends (type H). The permissible working pressure depends upon siz
38、e, materials, 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 testing according to the specification contained in this part of ISO 1179 to assure that components ma
39、de to this part of ISO 1179 comply with the performance ratings. NOTE 1 This part of ISO 1179 applies to connectors detailed in 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 fluid power
40、 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. ISO 228-1,
41、Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation ISO 3601-3:2005, Fluid power systems O-rings Part 3: Quality acceptance criteria ISO 4759-1:2000, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and
42、 C ISO 5598, Fluid power systems and components Vocabulary ISO 19879, Metallic tube connections for fluid power and general use Test methods for hydraulic fluid power connections BS EN ISO 1179-3:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 08:18, Uncontrolled Copy, (c) BSI 2 3 Term
43、s and definitions For the purposes of this document, the terms and definitions given in ISO 5598 and the following apply. 3.1 adjustable stud end connector stud end connector that allows for connector orientation through final tightening of the locknut to complete the connection NOTE This type of st
44、ud end is typically used on shaped connectors (e.g. tees, crosses and elbows). 3.2 non-adjustable stud end connector stud end connector that does not require specific orientation before final tightening of the connection because it is only used on straight connectors 4 Dimensions Light-duty (L serie
45、s) type G and type H stud ends, locknuts and washers shall conform to the dimensions given in Figures 1 and 2 and Table 1. Hexagonal tolerances across flats shall be in accordance with ISO 4759-1:2000, product grade C. 5 Requirements 5.1 Working pressure Light-duty (L series) stud ends (types G and
46、H) made of low carbon steel shall be designed for use at the working pressures given in Table 2. 5.2 Performance Light-duty (L series) 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
47、 the torques listed in Table 6. 5.3 Flatness and fit of adjustable stud end back-up washers The washer shall be clinched to the stud end with a tight slip fit to an interference fit. The slip fit shall be tight enough so that the washer cannot be shaken loose to cause it to drop from its uppermost position under its ow