BS-EN-10226-2-2005.pdf
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1、BRITISH STANDARD BS EN 10226-2:2005 Pipe threads where pressure tight joints are made on the threads Part 2: Taper, external threads and taper internal threads Dimensions, tolerances and designation The European Standard EN 10226-2:2005 has the status of a British Standard ICS 21.040.30 ? BS EN 1022
2、6-2:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 January 2006 BSI 16 January 2006 ISBN 0 580 47506 9 National foreword This British Standard is the official English language version of EN 10226-2:2005. The UK participation in its p
3、reparation was entrusted to Technical Committee ISE/19, Pipe fittings (other than cast iron), which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK i
4、nterests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications r
5、eferred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary pr
6、ovisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 13 and a back cover. T
7、he BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10226-2 August 2005 ICS 21.040.30 English Version Pipe threads where pressure tight joints ar
8、e made on the threads - Part 2: Taper external threads and taper internal threads - Dimensions, tolerances and designation Filetages de tuyauterie pour raccordement avec tanchit dans le filet - Partie 2: Filetages extrieurs coniques et filetages intrieurs coniques - Dimensions, tolrances et dsignati
9、on Rohrgewinde fr im Gewinde dichtende Verbindungen - Teil 2: Kegelige Auengewinde und kegelige Innengewinde - Mae, Toleranzen und Bezeichnung This European Standard was approved by CEN on 27 June 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the con
10、ditions 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 any CEN member. This European Standard exists in thre
11、e 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. CEN members are the national standards bodies of Aus
12、tria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARD
13、IZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10226-2:2005: E EN 10226-2:2005 (E) 2 Contents Page Fo
14、reword 3 1 Scope.4 2 Normative references .4 3 Terms and definitions.4 4 Symbols and explanations.6 5 Dimensions6 6 Designation .6 7 Thread design .8 7.1 Thread form.8 7.2 Thread lengths 9 8 Gauging .11 Bibliography.13 EN 10226-2:2005 (E) 3 Foreword This document (EN 10226-2:2005) has been prepared
15、by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes”, the secretariat of which is held by UNI/UNSIDER. 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 February 2006, and c
16、onflicting national standards shall be withdrawn at the latest by February 2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This document is based, with editorial modifications on ISO 7-1 “Pipe threads where pressu
17、re-tight joints are made on the threads - Part 1: Dimensions, tolerances and designation“. Pipe threads to this document are dimensionally identical to and fully interchangeable with pipe threads to ISO 7-1. This document has been prepared in three parts. Parts 1 and 2 reflect the two thread jointin
18、g systems in regular use in Europe and Worldwide - Part 1 details taper external and parallel internal pipe threads, and Part 2 details taper external and taper internal pipe threads. Part 3 will provide requirements for the gauging of pipe threads conforming to Parts 1 and 2. The common requirement
19、s for the taper external pipe thread are given in Part 1 and in Part 2, so as to present the complete thread jointing system in each part. Components having pipe threads produced to the dimensions and tolerances given in this European Standard can be assembled to give safe and effective pressure tig
20、ht joints providing proper assembly techniques are used. The techniques used to assemble threaded joints are dependent on a number of factors including the internal thread (parallel or taper), the quality of the mating threads, the materials of the components being connected, the thread sealant or j
21、ointing compound used and the assembly torque. Because of the different assembly techniques used for the taper / parallel and taper / taper systems, it is recommended that mixing of components having parallel internal threads and taper internal threads is avoided in the same piping system. Relevant
22、EN product or application standards will normally specify whether parallel and /or taper internal threads are permitted for these products or applications. Users should select the internal thread type to suit their product or application requirements. According to the CEN/CENELEC Internal Regulation
23、s, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
24、 Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom EN 10226-2:2005 (E) 4 1 Scope This European Standard specifies the requirements for thread form, dimensions, tolerances and designation for jointing pipe threads, sizes 1/16 to 6 inclusive, for joints made pressure-
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