1、March 2017 English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25.100.50!%c+1“2640814www.din.deDIN
2、 EN ISO 4231Hand and machineoperated circular screwing dies for parallel pipe threads G series (ISO 4231:2016);English Version EN ISO 4231:2016,English translation of DIN EN ISO 4231:2017-03Runde Hand und MaschinenSchneideisen fr zylindrisches Rohrgewinde Reihe G (ISO 4231:2016);Englische Fassung EN
3、 ISO 4231:2016,Englische bersetzung von DIN EN ISO 4231:2017-03Filires rondes de filetage, main et machine, pour filetages cylindriques de tuyauterie Srie G (ISO 4231:2016);Version anglaise EN ISO 4231:2016,Traduction anglaise de DIN EN ISO 4231:2017-03SupersedesDIN EN 24231:199006www.beuth.deDocume
4、nt comprises 12 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.03.17 DIN EN ISO 4231:2017-03 2 A comma is used as the decimal marker. National foreword This document (ISO 4231:2016) has been prepared by Technical Committee ISO
5、/TC 29 “Small tools”, Subcommittee SC 9 “Tools with defined cutting edges, cutting items”. The responsible German body involved in its preparation was DIN-Normenausschuss Werkzeuge und Spannzeuge (DIN Standards Committee Tools and Clamping Devices), Working Committee NA 121-01-04 AA Gewindebohrer un
6、d Schneideisen. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 228-1 DIN EN ISO 228-1 ISO 2568 DIN EN 22568 ISO 4230 DIN EN ISO 4230 Amendments This standard differs from DIN EN 24231:1990-06 as follows: a) Annex A has been added; b) a
7、 Bibliography has been added; c) the standard has been editorially revised and brought in line with current rules of presentation. Previous editions DIN 223-2: 1925-07, 1934-11, 1943x-12 DIN 5158: 1980-07, 1980-10, 1986-04 DIN EN 24231: 1990-06 DIN EN ISO 4231:2017-03 3 National Annex NA (informativ
8、e) Bibliography DIN EN 22568, Hand and machine-operated circular screwing dies and hand-operated die stocks DIN EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation DIN EN ISO 4230, Hand- and machine-operated circular screw
9、ing dies for taper pipe threads R series DIN EN ISO 4231:2017-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4231 November 2016 ICS 25.100.50 Supersedes EN 24231:1989English Version Hand- and machine-operated circular screwing dies for parallel pipe th
10、reads - G series (ISO 4231:2016) Filires rondes de filetage, main et machine, pour filetages cylindriques de tuyauterie - Srie G(ISO 4231:2016) Runde Hand- und Maschinen-Schneideisen fr zylindrisches Rohrgewinde - Reihe G (ISO 4231:2016)This European Standard was approved by CEN on 24 September 2016
11、. CEN members are bound to comply with 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
12、 application to the CEN-CENELEC Management 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-CENEL
13、EC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
14、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue
15、 Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4231:2016 EEuropean foreword .31 Scope . 52 Dimensions . 53 Marking 6Annex A (informative) Relationship between designations in this International
16、 Standard and ISO 13399 . 7Bibliography 8Contents PageDIN EN ISO 4231:2017-03 EN ISO 4231:2016 (E) 2Foreword 4European foreword This document (EN ISO 4231:2016) has been prepared by Technical Committee ISO/TC 29 “Small tools“. This European Standard shall be given the status of a national standard,
17、either by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or C
18、ENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 24231:1989. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgi
19、um, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer
20、land, Turkey and the United Kingdom. Endorsement notice The text of ISO 4231:2016 has been approved by CEN as EN ISO 4231:2016 without any modification. DIN EN ISO 4231:2017-03 EN ISO 4231:2016 (E) 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of nation
21、al 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 committee has been established has the right to be represented on that committee. Internatio
22、nal 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 electrotechnical standardization.The procedures used to develop this document and those intended
23、for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.
24、org/directives).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 identifying any or all such patent rights. Details of any patent rights identified during the development of the document will b
25、e in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions
26、 related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 29, Small tools, Subcomm
27、ittee SC 9, Tools with defined cutting edges, cutting items.This third edition cancels and replaces the second edition (ISO 4231:1987), of which it constitutes a minor revision with the following changes: Annex A has been added; a Bibliography has been added.DIN EN ISO 4231:2017-03 EN ISO 4231:2016
28、(E) 4 1 ScopeThis International Standard is a supplement to ISO 2568 and ISO 4230 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of parallel pipe threads, G series, in accordance with ISO 228-1.The general dimensions of these dies (diameter,
29、 thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.2 DimensionsThe general dimensions are shown in Figure 1 and given in Table 1.Figure 1Table 1Dimensions in millimetresThread des
30、ignationBasic diameterPitch D E C b a1/16 7,723 0,907 25 9 0,8 5 0,51/8 9,728 0,907 30 11 1 5 11/4 13,157 1,337 38 10 1,2 6 13/8 16,662 1,337 45 14 1,2 6 11/2 20,955 1,814 45 14 1,2 6 15/8 22,911 1,814 55 16 1,5 8 1DIN EN ISO 4231:2017-03 EN ISO 4231:2016 (E) 5 Thread designationBasic diameterPitch
31、D E C b a3/4 26,441 1,814 55 16 1,5 8 17/8 30,201 1,814 65 18 1,8 8 11 33,249 2,309 65 18 1,8 8 11 1/4 41,91 2,309 75 20 1,8 8 21 1/2 47, 803 2,309 90 22 2 8 21 3/4 53,746 2,309 105 22 2,5 10 22 59,614 2,309 105 22 2,5 10 22 1/4 65,71 2,309 120 22 2,5 10 2NOTE 1 The shape of the V-groove and the cle
32、arance holes are left to the manufacturers discretion.NOTE 2 Tolerances: for precision screwing dies: on D: f10; on E: js12; for non-precision screwing dies: on D and E: the tolerances are left to the manufacturers discretion.3 MarkingDies in accordance with this International Standard shall be mark
33、ed with the letter G, immediately followed by the designation of the thread.EXAMPLE A G series parallel thread screwing die with designation 3/8 is marked as follows:G 3/8Where tools comply in all respects with the relevant International Standards, the Symbol ISO may be appended to the mark at the d
34、iscretion of the manufacturer.Table 1 (continued)DIN EN ISO 4231:2017-03 EN ISO 4231:2016 (E) 6 Annex A (informative) Relationship between designations in this International Standard and ISO 13399For the relationship between the designations in this International Standard and preferred symbols accor
35、ding to ISO 13399, see Table A.1.Table A.1 Relationship between designations in this International Standard and ISO 13399Symbol in this International StandardReference in this International StandardProperty name in the ISO 13399 seriesSymbol in the ISO 13399 seriesReference in the ISO 13399 seriesTh
36、read designationTable 1Thread diameter, inch measureTDIN 726E3EA9B08ADDFigure 1 Table 1Body diameter BD 71ED6A9AF7D1DEFigure 1 Table 1Overall length OAL 71D078EB7C086Pitch Table 1 Thread pitch TP 71CEAEC08D4B0DIN EN ISO 4231:2017-03 EN ISO 4231:2016 (E) 7 Bibliography1 ISO 228-1, Pipe threads where
37、pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation2 ISO 2568, Hand- and machine-operated circular screwing dies and hand-operated die stocks3 ISO 4230, Hand- and machine-operated circular screwing dies for taper pipe threads R series4 ISO 13399 (all parts), Cutting tool data representation and exchangeDIN EN ISO 4231:2017-03 EN ISO 4231:2016 (E) 8
