1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15807:2011Railway applications Pneumatic half couplingsBS EN 15807:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15807:2011.The
2、 UK participation in its preparation was entrusted to TechnicalCommittee RAE/4, Railway Applications - Braking.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. User
3、s are responsible for its correctapplication. BSI 2011ISBN 978 0 580 57770 3ICS 45.040; 45.060.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2011.Am
4、endments issued since publicationDate Text affectedBS EN 15807:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15807 January 2011 ICS 45.060.01; 45.040 English Version Railway applications - Pneumatic half couplings Applications ferroviaires - Demi-accouplements Bahnanwendungen - Bremskuppl
5、ungen This European Standard was approved by CEN on 3 December 2010. 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 bibliographic
6、al 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, French, German). A version in any other language made by translation under the responsibility
7、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, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hung
8、ary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centr
9、e: 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 15807:2011: EBS EN 15807:2011EN 15807:2011 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms, definitions, symbols and a
10、bbreviations .53.1 Terms and definitions .53.2 Abbreviations .64 Design and manufacture .74.1 Requirements .74.1.1 Brake pipe .74.1.2 Main reservoir pipe 74.1.3 Flexible hose 74.1.4 Ring-shaped elastomer joints . 104.1.5 Coupling heads . 114.2 Compressed air quality 184.3 Ambient temperature 194.4 E
11、nvironmental corrosion conditions 194.5 Leakage 194.6 Mechanical strength of assembly . 194.7 Vacuum withstand 194.8 External appearance . 194.9 Fire behaviour . 195 Type test methods 205.1 Sampling for type test 205.2 Test requirements . 205.3 Test procedure flexible hose . 205.3.1 Nature and propo
12、rtion of the tests and inspections . 205.3.2 Preparation of the test pieces . 225.3.3 Bend test 225.3.4 Pressure test . 235.3.5 Bursting test 235.3.6 Adhesion of the reinforcement 245.3.7 Test of dynamic fatigue through repeated tensile loadings of the internal and external layers 255.3.8 Test for r
13、esidual deformation through static tensile loading after ageing . 255.3.9 Impact test . 255.3.10 Test for Resistance to ozone cracking of the external layer under static conditions . 275.3.11 Deflection at low temperature . 275.3.12 Test for fitting of connections on hoses 295.3.13 Uncoupling test .
14、 315.3.14 Flare test 315.3.15 Hardness test 325.4 Test procedure ring-shaped elastomer joints . 325.4.1 Nature and proportion of the tests and inspections . 325.4.2 Preparation of the test pieces . 345.4.3 Hardness test 345.4.4 Tensile strength test . 345.4.5 Deformation tests . 345.4.6 Water tightn
15、ess test 365.5 Test procedure pneumatic half coupling . 36BS EN 15807:2011EN 15807:2011 (E) 3 5.5.1 Principle 365.5.2 Check of physical and geometrical characteristics . 375.5.3 Hydraulic test of the assembly at given pressure . 375.5.4 Leakage 375.5.5 Corrosion test 395.5.6 Pull test . 395.6 Docume
16、ntation 406 Individual inspection . 407 In-Service assessment 418 Designation 419 Identification and marking 41Annex A (informative) Vacuum withstand 42Annex B (informative) MRP pneumatic half coupling for emergency coupling hoses 43B.1 General . 43B.2 Coupling head 43B.3 Identification 43Annex C (i
17、nformative) In-service trial . 45C.1 General . 45C.2 Test set-up and sampling . 45C.3 Procedure . 45C.4 Pass/fail criteria . 45Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC 46Bibliography 50BS EN 15807:2011EN 15807:2011 (
18、E) 4 Foreword This document (EN 15807:2011) 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 national standard, either by publication of an identical text or by endorsement, at t
19、he latest by July 2011 and conflicting national standards shall be withdrawn at the latest by July 2011. This document has been prepared under a mandate given to CEN/CENELEC/ETSI by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2
20、008/57/EC. For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for i
21、dentifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
22、Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15807:2011EN 15807:2011 (E) 5 1 Scope This European Standard applies to pneumatic half
23、 couplings designed to couple either the brake pipes or main reservoir pipes of railway vehicles, without taking the type of vehicles and track-gauge into consideration. This European Standard gives the requirements for the design, dimensions, testing and quality assurance of pneumatic half coupling
24、s. 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 amendments) applies. EN 14478:2005, Railway
25、applications Braking Generic vocabulary EN 50125-1:1999, Railway applications Environmental conditions for equipment Part 1: Equipment on board rolling stock EN ISO 8033:2006, Rubber and plastics hoses Determination of adhesion between components (ISO 8033:2006) EN ISO 9227, Corrosion tests in artif
26、icial atmospheres Salt spray tests (ISO 9227:2006) ISO 37:2005, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain properties ISO 48:2007, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) ISO 188, Rubber, vulcanized or ther
27、moplastic Accelerated ageing and heat resistance tests ISO 815, Rubber, vulcanized or thermoplastic Determination of compression set at ambient, elevated or low temperatures ISO 1431-1, Rubber, vulcanized or thermoplastic Resistance to ozone cracking Part 1: Static and dynamic strain testing ISO 143
28、1-3, Rubber, vulcanized or thermoplastic Resistance to ozone cracking Part 3: Reference and alternative methods for determining the ozone concentration in laboratory test chambers ISO 2285, Rubber, vulcanized or thermoplastic Determination of tension set under constant elongation, and of tension set
29、, elongation and creep under constant tensile load ISO 8573-1:2010, Compressed air Part 1: Contaminants and purity classes ISO 23529:2004, Rubber General procedures for preparing and conditioning test pieces for physical test methods 3 Terms, definitions, symbols and abbreviations 3.1 Terms and defi
30、nitions For the purposes of this document, the terms and definitions given in EN 14478:2005 and the following apply. BS EN 15807:2011EN 15807:2011 (E) 6 3.1.1 pneumatic half coupling assembly of components to connect the BP or MRP of a rail vehicle to the BP or MRP, respectively, of another rail veh
31、icle 3.1.2 components 3.1.2.1 brake coupling head components that when mechanically coupled together allow a flow of pressurised air between them 3.1.2.2 nipple component at one end of the pneumatic half coupling that connects it to the end cock, or pipe, located on the vehicle 3.1.2.3 hose clip com
32、ponent that mechanically fixes the hose to the coupling head or the nipple in order to assembly the pneumatic half coupling 3.1.2.4 sealing washer component that is installed in the coupling head to prevent unacceptable loss of air when two coupling heads are connected to one another 3.1.2.5 flexibl
33、e hose and constituents 3.1.2.5.1 flexible hose component that is connected between the brake coupling head and the nipple to convey the pressurised air and give the required flexibility between vehicles, and that is generally made up of a elastomeric tube, textile reinforcement and a elastomeric co
34、vering bonded together 3.1.2.5.2 tube interior layer of the flexible hose 3.1.2.5.3 reinforcement intermediate layer that provides the strength to maintain the general shape of the hose whilst giving the flexibility 3.1.2.5.4 covering external layer of the flexible hose which protects the interior c
35、onstituents from mechanical and environmental damage 3.1.3 bar 1 bar = 105 N/m2= 105Pa = 10-1MPa 3.2 Abbreviations BP Brake Pipe MRP Main Reservoir Pipe BS EN 15807:2011EN 15807:2011 (E) 7 “ inch LO a length of 20 mm marked on the calibrated part of the test piece IRHD International Rubber Hardness
36、Degree 4 Design and manufacture 4.1 Requirements 4.1.1 Brake pipe The pneumatic half couplings for the automatic air brake pipe shall conform to Figures 1 and 2 and either 3 or 4. The length of the assembled pneumatic half coupling, dimension X-X in Figure 1, is specified to suit the application, bu
37、t the recommended length is 730 mm. The nipple to connect to the end cock shall be as shown in Figure 1 and have a truncated internal ISO 228 - G 1 1/4” pipe thread. 4.1.2 Main reservoir pipe The pneumatic half couplings for the main reservoir pipe shall conform to Figures 5, 6 and either Figures 3
38、or 4 for interoperable traffic and either Figures 5 and 6 or Figures 7 and 8 plus either Figures 3 or 4 for internal traffic within a Member State. The length of the assembled pneumatic half coupling, dimension X-X in Figure 5 or 7, is specified to suit the application, but the recommended length is
39、 730 mm. The nipple to connect to the end cock shall be as shown in Figure 1 (and is the same as for the air brake pipe) and have a truncated internal ISO 228 - G 1 1/4” pipe thread. 4.1.3 Flexible hose 4.1.3.1 General The internal diameter of the coupling hoses for both pipes shall be between 25 mm
40、 and 30 mm. The recommended diameter is 28 mm. The length of the flexible hose is varied to suit the application, but should be the standard 620 mm to give the recommended length of 730 mm for dimension X-X as shown in Figures 1, 5 and 7. The recommended length of these hoses when used with a swing
41、head autocoupler should be increased to give an assembled length of the pneumatic half coupling of 1 080 mm for the automatic air brake pipe and 930 mm for the main reservoir pipe. Elastomeric composite hoses having a textile reinforcing inlay sealed (vulcanised) at each end shall generally be used
42、for these couplings, Figure 9, but hoses of other materials, e.g. metallic, may be used if they are flexible enough. The flexible hose shall conform to the dimensions defined in Figure 9. The choice of elastomers for elastomeric composite hoses is the choice of a manufacturer to meet the requirement
43、s of this specification. The elastomer used during a serial production shall conform with regard to the formulation of materials and characteristics to those products tested in the qualification procedure. The tolerances for the overall length of the pneumatic half couplings shall be: 6 000 mm 0,8 %
44、 The requirements 4.1.3.2 to 4.1.3.14 concern the elastomeric composite hoses. NOTE In the case of use of another material, the tests to be conducted shall be defined in agreement between the customer and the supplier. BS EN 15807:2011EN 15807:2011 (E) 8 4.1.3.2 Bending It shall be possible to bend
45、the hose to form approximately a torus of internal diameter equivalent to about 4 times the external nominal diameter of the hose, without using a force greater than 130 N for this operation, without folds appearing on the peripheral surface and without the maximum flattening recorded amounting to m
46、ore than 16 % of the nominal external diameter of the hose. This requirement shall be tested in accordance with 5.3.3. 4.1.3.3 Pressure test After being subjected to an internal pressure of 13 bar for a period of 5 min, there shall be no apparent leak, swelling, or tear on the hose. The dimensional
47、variations admitted under pressure conditions shall be as follows: variation in external diameter 10 %; variation in length 3,5 %; twist 20 /m. In addition, after discontinuation of the test pressure, no permanent deformation of the hose shall be apparent, after a waiting period of 3 min. This requi
48、rement shall be tested in accordance with 5.3.4. 4.1.3.4 Bursting pressure The bursting pressure, measured on the hose in delivery condition, shall not be less than 70 bar. This requirement shall be tested in accordance with 5.3.5. 4.1.3.5 Adhesion of the reinforcement The mean value of the force ne
49、eded to separate the reinforcement and each of the layers shall not be less than: 70 N for hoses tested in accordance with EN ISO 8033:2006, type 1 in delivery condition, and 87 N for hoses tested in accordance with EN ISO 8033:2006, type 2 in delivery condition; 55 N for hoses tested in accordance with EN ISO 8033:2006, type 1 after ageing for 7 days at 70 C, and 75 N for hoses teste
