BS-EN-12561-3-2002.pdf

BRITISH STANDARD BS EN 12561-3:2002 Railway applications Tank wagons Part 3: Bottom filling and emptying devices for gases liquefied under pressure The European Standard EN 12561-3:2002 has the status of a British Standard ICS 13.300; 45.060.20 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12561-3:2002 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2003 © BSI 31 January 2003 ISBN 0 580 41162 1 National foreword This British Standard is the official English language version of EN 12561-3:2002. The UK participation in its preparation was entrusted by Technical Committee RAE/1, Railway applications, to Subcommittee RAE/1/-/9, Wagons (Tank/Freight), which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred 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 provisions 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 proposals 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 15 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 12561-3 September 2002 ICS 13.300; 45.060.20 English version Railway applications - Tank wagons - Part 3: Bottom filling and emptying devices for gases liquefied under pressure Applications ferroviaires - Wagons citernes - Partie 3: Dispositifs de remplissage et de vidange par le bas pour gaz liquéfiés sous pression Bahnanwendungen - Kesselwagen - Teil 3: Untenliegende Füll- und Entleereinrichtungen für unter Druck verflüssigte Gase This European Standard was approved by CEN on 3 January 2002. 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 application to the 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12561-3:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12561-3:2002 (E) 2 Contents Foreword3 1Scope 5 2Normative references 5 3Terms and definitions5 4Requirements.5 4.1General5 4.2Constituent parts .6 4.3Locks and seals .6 4.4Dimensions.6 5Arrangement and structure.6 5.1Fittings for the liquid phase6 5.2Fittings for the vapour phase .7 5.3Quick closing bottom valve system.8 5.4External valves and connection fittings9 5.5External branch pipes .10 5.6Earthing devices 10 6Reserved spaces for connection devices.10 6.1General arrangement.10 6.2Relative positioning of connection devices11 7Threaded couplings.11 7.1General arrangement.11 7.2Dimensions and tolerances12 7.3Tests and marking .13 8Materials14 9Maintenance, tests and inspections 14 9.1Maintenance .14 9.2Approval, tests and inspections.14 Bibliography15 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12561-3:2002 (E) 3 Foreword This document (EN 12561-3:2002) has been prepared by Technical Committee CEN /TC 256, “Railway applications“, the secretariat of which is held by DIN. 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 March 2003, and conflicting national standards shall be withdrawn at the latest by March 2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). Council Directive 96/49/EC of 23 July 1996 on the approximation of the laws of the Member States with regard to the transport of dangerous goods by rail 1); Council Directive 96/48/EC of 23 July 1996 on the interoperability of the trans-european highspeed rail system2); Council Directive 93/38/EEC of 14 June 1993 co-ordinating the procurement procedures of entities operating in the water, energy, transport and telecommunications sectors 3); Council Directive 91/440/EEC of 29 July 1991 on the development of the community railways 4). It is in compliance with the following regulations being in force on the date of approval of this EN : Regulations concerning the International carriage of Dangerous goods by rail (RID) 5); Regulations governing the reciprocal use of wagons in international traffic (RIV) 6). The European Standard has been submitted for reference into the RID. Therefore in this context the standards listed in the normative references and covering basic requirements of the RID not addressed within the present standard are normative only when the standards themselves are referred to in the RID. 1) Official Journal of the European Community No L 235 of 96/09/17. 2) Official Journal of the European Community No L 235 of 96/09/17. 3) Official Journal of the European Community No L 199 of 93/08/09. 4) Official Journal of the European Community No L 237 of 91/08/24. 5) May be purchased from : OTIF, Gryphenhübeliweg, CH-3006 BERN 6) May be purchased from : UIC, Bureau RIV-RIC, 16 rue Jean Rey, F-75015 PARIS Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12561-3:2002 (E) 4 This series of European Standards “Railway applications - Tank wagons“ consists of : Part 1: Marking of tank wagons for the carriage of dangerous goods Part 2: Bottom emptying devices for liquid products including vapour return Part 3: Bottom filling and emptying devices for gases liquefied under pressure Part 4: Top devices for top emptying and filling of liquid products Part 5: Top devices for bottom emptying and top filling of liquid products Part 6: Manholes Part 7: Platforms and ladders Part 8: Heating connections According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this document: Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12561-3:2002 (E) 5 1 Scope This European Standard specifies requirements on and characteristics of bottom filling and emptying devices on tank wagons used for the carriage of gases liquefied under pressure having a test pressure up to 2,9 MPa. This standard specifies the important dimensions and arrangements for the filling and emptying connections. NOTEIt is intended to include quick couplings in a future revision of this European Standard. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 12972, Tanks for transport of dangerous goods Testing, inspection and marking of metallic tanks. EN 20286-1, ISO system of limits and fits Part 1: Bases of tolerances, deviations and fits (ISO 286-1:1988). ISO 3419, Non-alloy and alloy steel butt-welding fittings. ISO 4200, Plain end steel tubes, welded and seamless General tables of dimensions and masses per unit length. ISO 7005-1, Metallic flanges Part 1: Steel flanges. ISO 9329-3, Seamless steel tubes for pressure purposes Technical delivery conditions Part 3 : Unalloyed and alloyed steels with specified low temperature properties. ASME/ANSI B1.8-1988 Stub ACME screw threads 7). UIC 503, Continental wagons running in Great Britain General conditions (Reference profile, axle load, etc.) for the acceptance, in international traffic with Great-Britain, of 2-axle and bogies wagons registered with other UIC railways 8). 3 Terms and definitions For the purpose of this European Standard the following term and definition apply: 3.1 stop valve part of the internal bottom valve comprising the disc, the gasket, the spring and the seat. 4 Requirements 4.1 General The liquid and vapour phase system shall consist of DN 80 pipes and valves. The external couplings shall be : DN 80 diameter for the liquid phase, and 7)May be purchased from : ASME, East 47th Street, New York, N.Y. 10017, USA 8)May be purchased from : UIC, Bureau RIV-RIC, 16 rue Jean Rey, F-75015 PARIS Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12561-3:2002 (E) 6 DN 50 diameter for the vapour phase. 4.2 Constituent parts Both phases shall be equipped with : a) an internal quick closing bottom valve according to 5.3, b) an external branch pipe according to 5.5, c) at each end of the branch pipe a flanged external valve according to 5.4 fitted with threaded coupling according to clause 7, The vapour phase branch pipe shall be identified by the letters “GAS“ of 30 mm height embossed on a metallic plate as shown in Figure 1 which is permanently fixed on both sides of the tank wagon : GAS Figure 1 Plate identifying the vapour phase branch pipe 4.3 Locks and seals External valves as well as internal bottom valves shall be capable of being secured in their closed position to prevent any unintentional opening through impact or an inadvertent act. The operating controls of the external valves shall be equipped with devices to which a seal can be properly attached. NOTEFor customs seals a hole of diameter 15 mm is required 4.4 Dimensions They are given in millimetres. Unless otherwise indicated in this European Standard the tolerances of EN 20286-1 apply. 5 Arrangement and structure 5.1 Fittings for the liquid phase The fittings for the liquid phase shall be as shown in Figure 2. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12561-3:2002 (E) 7 1 2 3 4 Key 1 Internal quick closing bottom valve DN 502 External valve DN 50 3 Threaded coupling4 Branch pipe DN 80 Figure 2 Example of arrangement for the liquid phase 5.2 Fittings for the vapour phase The vapour phase shall include a pressure compensation line located inside the tank. The fittings for the vapour phase shall be as shown in Figure 3. 1 2 3 4 5 Key 1 Internal quick closing bottom valve DN 802 External valve DN 50 3 Threaded coupling4 Branch pipe DN 80 5 Pressure compensation line DN 50 Figure 3 Example of arrangement for the vapour phase Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 14:54:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12561-3:2002 (E) 8 5.3 Quick closing bottom valve system The quick closing bottom valve system shall meet the following requirements : a) The stop valve shall be inside the tank. The valve itself may be mounted either from inside or outside the tank. b) The quick closing bottom valve shall be operable from ground level. It shall be operable from both sides of the tank and its setting whether open or closed shall be capable of being verified. c) It shall be designed to remain closed when the external control is damaged. d) The quick closing bottom valve shall : be protected against being wrenched off by external forces or, incorporate a shear groove in the external portion of the valve body, or provide for a similar weakened section such that the external pipework may be sheared off without causing the leak at the level of the stop valve. e) The quick closing bottom valve shall be equipped with an instant operation safety device which closes the valve automatically in the event of an unintended movement of the tank wagon or a fire. This shall be achieved by means of a control cable as shown in Figure 4 which holds the valve open and the free end of which is fastened to a remote release hook external to the wagon. This hook shall be capable of being disconnected from its fastening point by a slack rope or equivalent mechanism which will enable the valve to be closed from a point remote from the wagon. The remote release mechanism shall contain a fusible element so that the valve may close in the event of fire. The guide tube and attachment ring for the control cable shall for a buffer height of 1060 mm be arranged and dimensioned as shown in Figure 4 below. The inner diameter of the attachment ring shall be 50 mm. When the bottom valve is closed and the control cable is slack, the lowest point of the attachment ring shall be at least 140 mm above rail level so that even for the lowest allowable buffer height of 950 mm, the control cable always remains with adequate clearance above the loading gauge. f) have the operating controls positioned at a sufficient distance from the outlet pipes to permit easy acce