1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12561-5:2011Railway applications TankwagonsPart 5: Devices for vapour return whilefilling or emptying of liquid productsBS EN 12561-5:2011 BRITISH STANDARDNational foreword
2、This British Standard is the UK implementation of EN 12561-5:2011.It supersedes BS EN 12561-5:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RAE/1/-/9, Railway Applications - Wagons (Tank/Freight).A list of organizations represented on this commit
3、tee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 72811 2ICS 13.300; 45.060.20Compliance with a British Standard cannot confer immunity fromle
4、gal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2011.Amendments issued since publicationDate Text affectedBS EN 12561-5:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12561-5 June 2011 ICS 13.300; 45.060.20 Su
5、persedes EN 12561-5:2002English Version Railway applications - Tank wagons - Part 5: Devices for vapour return while filling or emptying of liquid products Applications ferroviaires - Wagons citernes - Partie 5: Dispositifs de rcupration de vapeur pour remplissage ou vidange de produits liquides Bah
6、nanwendungen - Kesselwagen - Teil 5: Gaspendeleinrichtungen fr Be- und Entladung von flssigen Stoffen This European Standard was approved by CEN on 3 June 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
7、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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, Fr
8、ench, 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgari
9、a, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR ST
10、ANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12561-5:2011: EBS EN 12561-5:2011EN 12561-5:2011
11、(E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Requirements .64.1 General 64.2 Manhole 64.3 Depressurisation vapour connector 64.4 Safety valves 64.5 Dimensions .65 Positioning of equipment and reserved spaces .6Bibliography 8Figure Figure 1
12、 Positioning of equipment and reserved spaces 7BS EN 12561-5:2011EN 12561-5:2011 (E) 3 Foreword This document (EN 12561-5:2011) 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
13、national standard, either by publication of an identical text or by endorsement, at the latest by December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject o
14、f patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12561-5:2002. European Standard Railway applications Tank wagons consists of the following parts: Part 1: Identification plates for tank wagons for the carriag
15、e 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: Devices for top filling and emptying of liquid products; Part 5: Devices for vapour return while filling or empty
16、ing of liquid products; Part 6: Manholes; Part 7: Platforms and ladders; Part 8: Heating connections. The changes made during this revision are editorial because of the change of the title of part 1 and the necessary updates of references. According to the CEN/CENELEC Internal Regulations, the natio
17、nal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
18、Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 12561-5:2011EN 12561-5:2011 (E) 4 Introduction The top vapour return devices which are elements of the devices for filling and emptying devices, as defined in this European Standard are co
19、mposed of: a depressurisation vapour connector, defined in this part and mainly used before filling, and a vapour return line including auto vent valve, defined in EN 12561-2 and mainly used during emptying. BS EN 12561-5:2011EN 12561-5:2011 (E) 5 1 Scope This European Standard specifies the require
20、ments on and characteristics of top devices of tank wagons fitted for bottom emptying only and filling through the manhole and used for liquid substances of RID. Safety functions of these devices are subject to RID requirements and not described in this document. This European Standard specifies in
21、particular the important dimensions and arrangements for the connections of such tank wagons. This European Standard applies to new tank wagons built after the 1st January 2010. NOTE To take account of the loading gauge restrictions within Great Britain this European Standard does not apply to tank
22、wagons operating exclusively therein. 2 Normative references The following referenced documents are indispensable 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 amendment
23、s) applies. EN 12561-2, Railway applications Tank wagons Part 2: Bottom emptying devices for liquid products including vapour return EN 12561-6, Railway applications Tank wagons Part 6: Manholes EN 14564, Tanks for transport of dangerous goods Terminology EN ISO 4126-1, Safety devices for protection
24、 against excessive pressure Part 1: Safety valves (ISO 4126-1:2004) EN ISO 4126-2, Safety devices for protection against excessive pressure Part 2: Bursting disc safety devices (ISO 4126-2:2003) EN ISO 286-1, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Par
25、t 1: Basis of tolerances, deviations and fits (ISO 286-1) ISO 7005-1:1992, Metallic flanges Part 1: Steel flanges 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14564 and the following apply. 3.1 depressurisation vapour connector connection enabling
26、the equalisation of pressure between the tank wagon and the vapour recovery system of the filling station in order to minimise volatile organic compound emissions BS EN 12561-5:2011EN 12561-5:2011 (E) 6 4 Requirements 4.1 General The devices in this European Standard shall allow the filling of tank
27、wagons through the manhole with a loading arm. The tank wagon shall be designed so that the loading arm does not come into contact with or damage the internal bottom valve when inserted into the tank wagon. Where tank wagons are fitted with a depressurisation vapour connector, it shall conform to th
28、is standard. Bottom emptying devices shall conform to EN 12561-2. 4.2 Manhole The tank wagons shall be fitted with swing bolt manholes according to EN 12561-6 situated on the top centre line and in the proximity of the longitudinal centre line of the tank. The manhole shall be situated so that its v
29、ertical projection on the bottom of the tank is not less than 100 mm from any part of the internal bottom valve. The manhole internal diameter shall be a nominal minimum of 500 mm and its top opening shall be in a horizontal plane. The manhole shall not restrict the operation of the vapour sealing d
30、evice on the loading arm assembly. 4.3 Depressurisation vapour connector The connecting face of the depressurisation vapour connector shall be in a horizontal plane. The connector is to be provided with a closure with an attachment facility to a chain or a stainless steel wire cable. This attachment
31、 facility shall be fit for purpose and of minimum length to avoid contact with the electric overhead line. Where required by RID, the depressurisation vapour connector shall be fitted with a flame trap. 4.4 Safety valves Where tank wagons are fitted with pressure and/or vacuum relief valves, they sh
32、all conform to the regulations and EN ISO 4126-1. Where required by RID, the safety valve shall be preceded by a bursting disc. The bursting disc shall conform to EN ISO 4126-2. Safety valve assemblies shall be fitted in the vapour space of the tank on nozzles DN 80 PN 10 according to ISO 7005-1:199
33、2. 4.5 Dimensions All dimensions are given in millimetres. Unless otherwise indicated in this European Standard tolerances of EN ISO 286-1 apply. 5 Positioning of equipment and reserved spaces Except for specific cases agreed between the customer and the manufacturer: the connecting faces of the man
34、hole and depressurisation vapour connector shall be positioned entirely within the dimensions shown in Figure 1; BS EN 12561-5:2011EN 12561-5:2011 (E) 7 furthermore, the depressurisation vapour connector shall be located close to the manhole and on the opposite side to the manlid hinge as shown in t
35、he Figure 1. Dimensions in millimetres Key 1 manhole 2 top manhole plane 3 free space for loading arm 4 depressurisation vapour connector 5 opening angle of manhole lid 6 reserved space for filling and emptying devices 7 middle of tank wagon Figure 1 Positioning of equipment and reserved spaces BS E
36、N 12561-5:2011EN 12561-5:2011 (E) 8 Bibliography 1 EN 14025, Tanks for the transport of dangerous goods Metallic pressure tanks Design and Construction 2 RID, Regulations concerning the International Carriage of Dangerous Goods by Rail implementing Commission Directives 2003/28/EC and 2003/29/EC Thi
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