1、|BRITISH STANDARDBS EN ISO9974-1:2000Incorporatingcorrigendum No.1The European Standard EN ISO 9974-1:2000 has the status of aBritish StandardICS 23.100.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWConnections for generaluse and fluid power Ports and stud ends withISO 261
2、threads withelastomeric ormetal-to-metal sealing Part 1: Threaded portsThis British Standard, havingbeen prepared under thedirection of the EngineeringSector Committee, was publishedunder the authority of theStandards Committee and comesinto effect on 15 August 2000 BSI 09-2000ISBN 0 580 36271 XBS E
3、N ISO 9974-1:2000Amendments issued since publicationAmd. No. Date Comments11069CorrigendumNo.1September2000Correction to EN titleNational forewordThis British Standard is the official English language version of EN ISO 9974-1:2000.It is identical with ISO 9974-1:1996.The UK participation in its prep
4、aration was entrusted to Technical CommitteeMCE/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 enquirieson the interpretation, or proposals for change, and keep the UK inte
5、restsinformed; monitor related international and European developments and promulgatethem in the UK.A list of organizations represented on this committee can be obtained on request toits secretary.Cross-referencesAttention is drawn to the fact that CEN and CENELEC Standards normally includean annex
6、which lists normative references to international publications with theircorresponding European publications. The British Standards which implement theseinternational or European publications may be found in the BSI StandardsCatalogue under the section entitled “International Standards Correspondenc
7、eIndex”, 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 acontract. Users of British Standards are responsible for their correct application.Compliance with a British Standard does not of itself
8、confer immunityfrom legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO title page,the EN ISO foreword page, the ISO title page, pages ii and iii, a blank page, pages 1to 4, an inside back cover and a back cover.The BSI copyright notice displaye
9、d in this document indicates when the documentwas last issued.EN ISO 9974-1 EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM May 2000 ICS 23.100.30 English version Connections for general use and fluid power - Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing- Pa
10、rt 1: Threaded ports (ISO 9974-1 :1996) Raccordements pour applications generales et transmissions hydrauliques et pneumatiques - Orifices et elements males a filetage ISO 261 et joints en elastomere ou etancheite metal sur metal - Partie 1: Orifices filetes (ISO 9974-1:1996) This European Standard
11、was approved by CEN on 8 April 2000. LeitungsanschiOsse fOr Fluidtechnik und allgemeine Anwendung - Einschraublocher und Einschraubzapfen mit Gewinde nach ISO 261 und Elastomerdichtung oder metallener Dichtkante- Teil1: Einschraublacher (ISO 9974-1:1996) CEN members are bound to comply with the CEN/
12、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 Central Secretariat or to a
13、ny 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 Central Secretariat has the same status as the official versions.
14、CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE N
15、ORMALISATION EUROPAISCHES KOMITEE FOR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9974-1:2000 E EN ISO 9974-1:2000Foreword The text of the International
16、Standard from Technical Committee ISO!TC 5 “Ferrous metal pipes and metallic fittings“ and ISO!TC 131 “Fluid power systems“ of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee ECISS!TC 29 “Steel tubes and fittings for steel t
17、ubes“, 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 November 2000, and conflicting national standards shall be withdrawn at the latest by November 2000.
18、 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Po
19、rtugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 9974-1:1996 has been approved by CEN as a European Standard without any modification. EN ISO 9974-1:2000INTERNATIONAL STANDARD ISO 9974-1 First edition 1996-04-15 Connections for
20、general use and fluid power - Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing-Part 1: Threaded ports Raccordements pour applications generales et transmissions hydrauliques et pneumatiques- Orifices et elements males a filetage ISO 267 et joint en Blastomere au et
21、ancheite metal sur metal-Partie 7: Orifices filetes - - - -ISOJ - - - -Reference number ISO 9974-1:1996(E) EN ISO 9974-1:2000Foreword ISO (the International Organization for Standardization) is a worldwide fed eration of national standards bodies (ISO member bodies). The work of preparing Internatio
22、nal 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 rep resented on that committee. International organizations, governmental and non-governmental, in liaison with IS
23、O, also take part in the work. ISO col laborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are cir culated to the member bodies for voting. Publication as an I
24、nternational Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 9974-1 was prepared jointly by Technical Committees ISO/TC 5, Ferrous metal pipes and metallic fittings, Sub committee SC 5, Threaded or plain end butt-welding fittings, threads,
25、gauging of threads, and ISO/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and components. ISO 9974 consists of the following parts, under the general title Connec tions for general use and fluid power- Ports and stud ends with ISO 261 threads with e/astomeric or met
26、al-to-meta/ sealing. Part 1: Threaded ports Part 2: Stud ends with e/astomeric sealing (type E) Part 3: Stud ends with metal-to-metal sealing (type 8) The performance requirements, dimensions and designs are defined for port and stud end connections for the Land S series in ISO 9974-2 and for the LL
27、, L and S series in ISO 9974-3. Significant testing over more than 30 years of use has confirmed the performance requirements of these port and stud end connections. Stud ends conforming to ISO 9974-2 and 9974-3 are identical to those conforming to DIN 3852-1. ISO 9974-2 stud ends are used on ISO 84
28、34-1 and ISO 8434-4 fittings, and ISO 9974-3 stud ends are used on ISO 8434-1 fittings. Annex A of this part of ISO 9974 is for information only. ii EN ISO 9974-1:2000Introduction In fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressure within an enc
29、losed circuit. In general appli cations, a fluid may be conveyed under pressure. Components are connected through their threaded ports by fluid conduc tor fittings to tubes and pipes or to hose fittings and hoses. Ports are an integral part of fluid power components, such as pumps, motors, valves, c
30、ylinders, etc. Ill EN ISO 9974-1:2000EN ISO 9974-1:2000Connections for general use and fluid power- Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing-Part 1: Threaded ports 1 Scope This part of ISO 9974 specifies dimensions for ports with ISO 261 threads and elastom
31、eric (type E) or metal-to metal (type 8) sealing for general use and in fluid power applications with the stud ends detailed in ISO 9974-2 and ISO 9974-3. It also specifies test methods and the designation of these ports. Ports in accordance with this part of ISO 9974 may be used at working pressure
32、s up to 63 MPa (630 bar 1 )_ The permissible working pressure depends upon the port size, materials, design, working conditions, ap plication, etc. For threaded ports and stud ends specified in new designs in hydraulic fluid power applications, only ISO 6149 is to be used. Threaded ports and stud en
33、ds in accordance with ISO 1179, ISO 9974 and ISO 11926 are not to be used for new designs in hydraulic fluid power applications. 2 Normative references The following standards contain prov1s1ons which, through reference in this text, constitute provisions of this part of ISO 9974. At the time of pub
34、lication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 9974 are encouraged to investigate the possibility of applying the most recent editions of the 1) 1 bar= 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2 2) To be published. (Revi
35、sion of ISO 261: 1973) standards indicated below. Members of IEC and ISO maintain registers of currently valid International Stan dards. ISO 261 :-2), ISO general-purpose metric screw threads - General plan. ISO 5598:1985, Fluid power systems and components - Vocabulary. ISO 997 4-2:1996, Connection
36、s for general use and fluid power - Ports and stud ends with ISO 261 threads with e/astomeric or metal-to-meta/ sealing -Part 2: Stud ends with e/astomeric sealing (type E). ISO 9974-3:1996, Connections for general use and fluid power - Ports and stud ends with ISO 261 threads with elastomeric or me
37、tal-to-metal sealing -Part 3: Stud ends with metal-to-metal sealing (type 8). 3 Definitions For the purposes of this part of ISO 9974, the defi nitions given in ISO 5598 apply. 4 Dimensions Ports shall conform to the dimensions shown in figure 1 and given in table 1. 1 EN ISO 9974-1:20002 Thread ( d
38、1 x P) 90 1Pd2 (ret.) Pitch diameter A- Figure 1 - Port Surface roughness in micrometres This dimension only applies when tap drill cannot pass through entire boss Table 1 - Port dimensions Dimensions in millimetres Thread 1l d2 d3 d4 L, L2 L32l w (d1 xP) ref. nom. to I. min. max. min. min. M8x1 3 8
39、 13 1 8 10 M10 X 1 4,5 10 15 1 8 10 M12x1,5 6 12 18 1,5 12 15 M14x1,5 7 14 20 1,5 12 15 0,1 M16x1,5 9 16 23 1,5 12 15 M18 X 1,5 11 18 +0,2 25 2 12 15 0 M20x1,53l 10 20 27 2 14 17 M22 x 1,5 14 22 28 2,5 14 17 M26 X 1,5 1,8 26 33 2,5 16 19 M27 X 24) 16 27 33 2,5 16 20 M33x2 23 33 41 2,5 18 22 0,2 + 0,
40、3 M42x2 30 42 0 51 2,5 20 24 M48x2 36 48 56 2,5 22 36 1) Conforming to ISO 261. 2) The tap drill depths given require the use of a bottoming tap to produce the specified full thread lengths. Where standard taps are used, the tap drill depths shall be increased accordingly. 3) For measurement applica
41、tions. 4) M27 x 2 is used only in S (heavy-duty) series. EN ISO 9974-1:20005 Test methods Ports shall be tested together with stud ends in accor dance with the test methods and requirements given in ISO 9974-2 and ISO 9974-3. 6 Designation of ports The ports shall be designated by a) “Port“; b) refe
42、rence to this part of ISO 9974, i.e. ISO 9974-1; c) thread size (d1 x P). EXAMPLE Port ISO 9974-1 - M10 x 1 7 Identification statement (Reference to this part of ISO 9974) Use the following statement in test reports, cata logues and sales literature when electing to comply with this part of ISO 9974
43、: “Threaded ports conform to ISO 9974-1:1996, Con nections for general use and fluid power - Ports and stud ends with ISO 261 threads with e/astomeric or metal-to-meta/ sealing - Part 1: Threaded ports.“ 3 EN ISO 9974-1:2000Annex A (informative) Bibliography 1 I SO 11 01 :1983, Technical drawings -
44、Geometri cal tolerancing- Tolerances of form, orientation, location and run-out - Generalities, definitions, symbols, indications on drawings. 2 ISO 1179-1 :-3l, Connections for general use and fluid power - Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-meta/ seal ing - Par
45、t 1: Threaded ports. 3 ISO 1179-2:-3l, Connections for general use and fluid power - Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal seal ing - Part 2: Heavy-duty (S series) and light-duty (L series) stud ends with e/astomeric sealing (type E). 4 ISO 1179-3:-3l, Connect
46、ions for general use and fluid power - Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-meta/ seal ing - Part 3: Light-duty (L series) stud ends with sealing by 0-ring with retaining ring (types G and H). 5 ISO 1179-4:-3l, Connections for general use and fluid power - Ports an
47、d stud ends with ISO 228-1 threads with elastomeric or metal-to-meta/ seal ing - Part 4: Stud ends for general use only with metal-to-metal sealing (type 8). 6 ISO 1302:1992, Technical drawings- Method of indicating surface texture. 7 ISO 6149-1:1993, Connections for fluid power and general use - Po
48、rts and stud ends with ISO 261 threads and 0-ring sealing - Part 1: Ports with 0-ring seal in truncated housing. 8 ISO 6149-2:1993, Connections for fluid power and general use - Ports and stud ends with ISO 261 threads and 0-ring sealing - Part 2: 3) To be published. 4 Heavy-duty (S series) stud end
49、s - Dimensions, design, test methods and requirements. 9 ISO 6149-3:1993, Connections for fluid power and general use - Ports and stud ends with ISO 261 threads and 0-ring sealing - Part 3: Light-duty (L series) stud ends - Dimensions, design, test methods and requirements. 10 ISO 6410-1:1993, Technical drawings -Screw threads and threaded parts - Part 1: General conventions. 11 ISO 8434-1:1994, Metallic tube
