1、BRITISH STANDARD BS EN 10311:2005 Joints for the connection of steel tubes and fittings for the conveyance of water and other aqueous liquids The European Standard EN 10311:2005 has the status of a British Standard ICS 23.040.60 BS EN 10311:2005 This British Standard was published under the authorit
2、y of the Standards Policy and Strategy Committee on 27 June 2005 BSI 27 June 2005 ISBN 0 580 46124 6 National foreword This British Standard is the official English language version of EN 10311:2005. It partially supersedes BS 534:1990 and supplements EN 10224:2004. The UK participation in its prepa
3、ration was entrusted to Technical Committee ISE/8, Steel pipes, which has the responsibility to: 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 referred t
4、o 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 provisions
5、of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or pr
6、oposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 27 and a back cover. The BSI copyright notice di
7、splayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10311 May 2005 ICS 23.040.60 English version Joints for the connection of steel tubes and fittings for the conveyance o
8、f water and other aqueous liquids Assemblages pour le raccordement de tubes en acier et raccords pour le transport deau at dautres liquides aqueux Verbindungen fr Stahlrohre und Fittings fr den Transport von Wasser und anderen wssrigen Flssigkeiten This European Standard was approved by CEN on 25 Ma
9、rch 2005. 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 obt
10、ained on application to the Central Secretariat 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 Central Sec
11、retariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, P
12、ortugal, Slovakia, Slovenia, 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 2005 CEN All rights of exploitation in any form and by any means res
13、erved worldwide for CEN national Members. Ref. No. EN 10311:2005: EEN 10311:2005 (E) 2 Contents Page Foreword 3 1 Scope .5 2 Normative references .5 3 Terms, definitions and symbols 6 4 Types of joint.7 5 Classification.12 6 Requirements 13 7 Testing .14 8 Evaluation of conformity 19 Annex ZA (infor
14、mative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive .22 Bibliography.27EN 10311:2005 (E) 3 Foreword This document (EN 10311:2005) has been prepared by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes”, the secretariat
15、 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 2005, and conflicting national standards shall be withdrawn at the latest by February 2007. This document has bee
16、n prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 89/106/EEC. For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. Compliance of a pro
17、duct with this document does not confer a presumption of fitness of the product for the transport of water intended for human consumption within the meaning of the Directive 89/106/EEC. However, until the operation of the envisaged European Acceptance Scheme for construction products in contact with
18、 water intended for human consumption and the revision of the present document, products complying with this document may be used for the transport of water intended for human consumption if they comply with the relevant national, regional or local regulatory provisions applicable in the place of us
19、e. According to the CEN/CENELEC Internal Regulations, 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,
20、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 10311:2005 (E) 4 Introduction This European Standard applies to joints for use with non-alloy steel tubular products for use with all types of aqueous liquids.
21、In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this European Standard: a) This European Standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU o
22、r EFTA; b) It should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. Standards EN 1123-1 Pipes and fittings of longitudinally welded hot-dip galvanized steel pipes
23、 with spigot and socket for waste water systems Part 1: Requirements, testing, quality control and EN 1123-2 Pipes and fittings of longitudinally welded hot-dip galvanized steel pipes with spigot and socket for waste water system Part 2: Dimensions are also available for waste water systems which re
24、quire galvanized tubes. EN 10311:2005 (E) 5 1 Scope This European Standard specifies a range of jointing methods for connecting low alloy steel tubes and steel tubes and fittings for use with aqueous liquids. The following specific joint types are covered by this document: butt welded joints, welded
25、 spigot and socket (or sleeve joints), welding collars, flange joints, threaded joints, spigot and socket joints with seal and mechanical couplings. This European Standard specifies requirements for the strength and integrity of the joints and the testing of the joints. This European Standard does n
26、ot specify the requirements for the tubes or the fittings. This European Standard is suitable for joints intended for the conveyance of water for human consumption, after an appropriate coating has been applied. This European Standard is not intended for use in heating networks where elevated temper
27、ature properties are required. Flexible joints which permit significant angular deflection, both during and after installation and which can accept slight offset of the centre line, are not covered by this European Standard. 2 Normative references The following referenced documents are indispensable
28、 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. EN 681-1, Elastomeric seals Material requirements for pipe joint seals used in water and drainage app
29、lications Part 1: Vulcanized rubber EN 1011-2, Welding Recommendations for welding of metallic materials Part 2: Arc welding of ferritic steels EN 1092-1, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1591-1, Flanges and
30、 their joints Design rules for gasketed circular flange connections Part 1: Calculation method EN 1759-1, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1: Steel flanges, NPS 1 / 2to 24 EN 10224, Non-alloy steel tubes and fittings for the
31、 conveyance of aqueous liquids including water for human consumption - Technical delivery conditions EN 10226-1, Pipe threads where pressure tight joints are made on the threads Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation prEN 10226-2, Pipe t
32、hreads where pressure tight joints are made on the threads Part 2: Taper external threads and taper internal threads - Dimensions, tolerances and designation EN 10266:2003, Steel tubes, fittings and structural hollow sections Symbols and definitions of terms for use in product standards EN 10311:200
33、5 (E) 6 EN 13479, Welding consumables General product standard for filler metals and fluxes for fusion welding of metallic materials EN 13501-1, Fire classification of construction products and building elements. Part 1: Classification using test data from reaction to fire tests. EN ISO 6708, Pipewo
34、rk components Definition and selection of DN (nominal size) (ISO 6708:1995) EN ISO 15607, Specification and qualificationl of welding procedures for metallic materials - General rules (ISO 15607:2003) 3 Terms, definitions and symbols For the purposes of this European Standard, the symbols given in E
35、N 10266:2003 apply together with the following terms and definitions. 3.1 allowable maximum operating pressure (p) maximum pressure occurring from time to time, including surge, that a component is capable of withstanding in service EN 805:2000 3.2 collar short length of tube which is placed over th
36、e end of a tube or fitting and welded to it, to form a socket to receive the end of another tube or fitting 3.3 coupling mechanical joint for connecting identical or different pipe diameters and/or identical or different materials 3.4 fitting component, other than a pipe, which allows pipeline devia
37、tion, change of direction or bore of a tube. In addition, flanged-socket pieces, flanged-spigot pieces, collars and couplings are defined as fittings 3.5 joint connection between the ends of two components including the means of sealing EN 805:2000 3.6 adjustable joint joint which permits significan
38、t angular deflection at the time of installation but not thereafter EN 805:2000 3.7 rigid joint joint that does not permit significant angular deflection, either during or after installation EN 805:2000 3.8 nominal size (DN) see EN ISO 6708 EN 10311:2005 (E) 7 4 Types of joint 4.1 Butt welded joints
39、 Butt-welded joints shall be made between tubes or tubes and fittings with their ends prepared in accordance with EN 10224. The maximum gap between the ends of the tubes or the tubes and fittings when set up for welding shall be in accordance with EN 1011-2. 4.2 Welded spigot and socket (sleeve) joi
40、nts 4.2.1 General Welded spigot and socket (sleeve) joints for welding shall comply with 4.2.2 or 4.2.3. The general form of the joints given in Figure 1 may differ in detail from one manufacturer to another, however the principal dimensions shown shall be measured, using appropriate equipment, and
41、values shall be as stated, subject to the manufacturers stipulated tolerances. NOTE The dimensions of sleeve joints apply when they are shaped or made on tubes and/or fittings. On tubes and fittings of outside diameter smaller than 711 mm, the joint may be welded on the outside only. On tubes or fit
42、tings with outside diameter 711 mm and larger, welding may be either inside, or outside, or both inside and outside. Such joints have been designed to allow the same forces to be transmitted as if the welds were fillet welds of a size appropriate to the thickness of the materials being joined. 4.2.2
43、 Spigot and socket (sleeve) joints (type 1) For type 1 joints (see Figure 1) the tubes or fittings shall be supplied with spigot end parallel and sleeve end either parallel or with the diameter tapered by approximately 0,8 mm on diameter per 25 mm length of sleeve. These latter joints are designed f
44、or taper sleeves, so that the depth of penetration of the spigot into the sleeve anywhere around the circumference shall be not less than 30 mm but shall also be sufficient, if applicable, to accommodate any holes made in the sleeve to permit testing of the joint. When used to accommodate small chan
45、ges in pipeline direction, the spigot shall additionally penetrate the sleeve around the whole circumference to an average depth of not less than 40 mm. NOTE 1 At maximum penetration, the spigot can locate in the undimensioned transition area between the sleeve and the tube body. Care should be take
46、n in expanding the tube end to prevent excessive weld gaps between the spigot and sleeve. The manufacturer or supplier shall obtain from the purchaser at the time of enquiry and order specific details of the end preparation necessary for tubes and fittings for use with these types of joint. NOTE 2 A
47、ssembly of sleeve joints on site in preparation for welding may require mechanical alignment aids e.g. props, jacks or wedges. 4.2.3 Spigot and socket (sleeve) joints (type 2) For type 2 joints (see Figure 1) the tubes or fittings shall be supplied with the spigot end and the sleeve end parallel. Th
48、e collar forming the sleeve shall be fabricated with not more than one longitudinal weld and shall be welded externally and internally to the sleeve tube. To ensure an adequate space between the spigot end and the internal collar weld to effect the inside joint weld, if required, the minimum sleeve
49、length shall be (150 + 2T) mm for D 168,3 mm and (100+ 2T) mm for D 168,3 mm, where T is the wall thickness of the sleeve. EN 10311:2005 (E) 8 75 a a) Type 1 (parallel sleeve) 75 a b) Type 1 (taper sleeve: taper approx. 0,8 mm on diameter for each 25 mm on length of socket) NOTE All dimensions are in millimetres. 75 a 150 + 2T b 75 T T c c c) Type 2 (collar sleeve) NOTE All dimensions are in millimetres. Key a For outside diameters 168,3 mm, the length i
