1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13617-3:2012Petrol filling stationsPart 3: Safety requirements for construction and performance of shear valvesBS EN 13617-3:2012 BRITISH STANDARDNational forewordThis Brit
2、ish Standard is the UK implementation of EN 13617-3:2012. It supersedes BS EN 13617-3:2004, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e P V E / 3 9 3 / 4 , M e t e r i n g p u m p s a n d d i s p e n s e r s for liquid fuel.A list o
3、f organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limit
4、ed 2012ISBN 978 0 580 71240 1 ICS 75.200 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2012.Amendments issued since publicationDate T e x t a f f e c
5、t e dBS EN 13617-3:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13617-3 March 2012 ICS 75.200 Supersedes EN 13617-3:2004English Version Petrol filling stations - Part 3: Safety requirements for construction and performance of shear valves Stations-service - Partie 3: Exigences de scurit
6、relatives la construction et aux performances des raccords de scurit Tankstellen - Teil 3: Sicherheitstechnische Anforderungen an Bau- und Arbeitsweise von Abscherventilen This European Standard was approved by CEN on 28 January 2012. CEN members are bound to comply with the CEN/CENELEC Internal Reg
7、ulations 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 CEN-CENELEC Management Centre or to any CEN mem
8、ber. 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 CEN-CENELEC Management Centre has the same status as the official versions.
9、CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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
10、, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for C
11、EN national Members. Ref. No. EN 13617-3:2012: EBS EN 13617-3:2012EN 13617-3:2012 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Explosion protection measures .65 Construction .65.1 General requirements 65.2 Specific requirements .75.3 Class
12、es of construction 75.4 Threads .76 Physical properties 77 Operational requirements .88 Tests 88.1 General 88.2 Type tests .88.3 Production acceptance tests 88.4 Routine tests 99 Information for use 99.1 General 99.2 Marking and instruction 9Annex A (normative) Instructions Guide for items to be inc
13、luded in manufacturers installation and user manual . 11Annex B (normative) Test methods 12B.1 General requirements . 12B.2 Pressure test (routine test) 12B.3 Main valve test (routine test) . 12B.4 Pressure relief valve test (routine test) 12B.5 Fuel preconditioning (type test) 13B.6 Pressure test (
14、type test) . 13B.7 Main valve test (type test) 13B.8 Check valve test (class I only) (type test) 13B.9 Pressure relief valve test (class I only) (type test) 14B.10 Thermal link test 1 (class I and class II only) (type test and production acceptance test) . 14B.11 Thermal link test 2 (class I and cla
15、ss II only) (type test and production acceptance test) . 14B.12 Main valve closure test (type test and production acceptance test) . 14B.13 Main valve closure test (type test and production acceptance test) . 15Annex C (informative) Environmental aspects 16Annex ZA (informative) Relationship between
16、 this European Standard and the Essential Requirements of EU Directive 94/9/EC . 18BS EN 13617-3:2012EN 13617-3:2012 (E) 3 Foreword This document (EN 13617-3:2012) has been prepared by Technical Committee CEN/TC 393 “Equipment for tanks and filling stations”, the secretariat of which is held by DIN.
17、 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 September 2012, and conflicting national standards shall be withdrawn at the latest by September 2012. Attention is drawn to the possibility that s
18、ome of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13617-3:2004. This document has been prepared under a mandate given to CEN by the European Commission
19、and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to edition EN 13617-3:2004 the following fundamental changes are given: a new note a
20、t the end of the scope: Fuels other than of Explosion Group IIA are excluded from this European Standard added; informative Annex C concerning environmental aspects added. The present standard is composed of the following parts: Part 1: Safety requirements for construction and performance of meterin
21、g pumps, dispensers and remote pumping units; Part 2: Safety requirements for construction and performance of safe breaks for use on metering pumps and dispensers; Part 3: Safety requirements for construction and performance of shear valves; Part 4: Safety requirements for construction and performan
22、ce of swivels for use on metering pumps and dispensers. 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, Fin
23、land, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13617-3:2012EN 13617-3:2012 (E) 4 Introduction The function of t
24、he shear valve is to prevent continuous liquid or vapour release in the event of impact or fire BS EN 13617-3:2012EN 13617-3:2012 (E) 5 1 Scope This European Standard specifies safety and environmental requirements for the construction and performance of shear valves to be fitted to metering pumps,
25、dispensers, and/or satellite delivery systems installed at petrol filling stations and used to dispense liquid fuels into the tanks of motor vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l min-1. The requirements apply to shear valves at ambient temperatures
26、 from 20 C to +40 C with the possibility for an extended temperature range. It pays particular attention to mechanical and hydraulic characteristics. NOTE 1 This European Standard does not apply to equipment for use with liquefied petroleum gas (LPG) or liquefied natural gas (LNG) or compressed natu
27、ral gas (CNG). NOTE 2 Fuels other than of Explosion Group IIA are excluded from this European Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition c
28、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 9761, Underground tanks of glass-reinforced plastics (GRP) Horizontal cylindrical tanks for the non-pressure storage of liquid petroleum based fuels Part 1: Requirements and tes
29、t methods for single wall tanks EN 1127-1, Explosive atmospheres Explosion prevention and protection Part 1: Basic concepts and methodology EN 134631:2009, Non-electrical equipment for use in potentially explosive atmospheres Part 1: Basic method and requirements EN 13617-1:2012, Petrol filling stat
30、ions Part 1: Safety requirements for the construction and performance of metering pumps, dispensers and remote pumping units EN 60079-0, Explosive atmospheres Part 0: Equipment General requirements EN ISO 1182, Reaction to fire tests for products Non-combustibility test (ISO 1182) ISO 71, Pipe threa
31、ds where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designations 3 Terms and definitions For the purposes of this document, the terms and definitions given in prEN 136171:2010 and the following apply. 3.1 main valve (liquid) normally open valve on the inlet side
32、, closing when the shear valve operates 3.2 main valve (vapour) normally open valve on the outlet side, closing when the shear valve operates BS EN 13617-3:2012EN 13617-3:2012 (E) 6 3.3 pressure relief valve valve to allow liquid to return to the pipework below the dispenser if pressure in the dispe
33、nser increases beyond a defined level 3.4 separation zone designed to be the first section of the shear valve to fracture when stressed 3.5 mechanical link device to activate the closing mechanism automatically to stop the flow of liquid when the shear valve breaks 3.6 thermal detector device to act
34、ivate the closing mechanism automatically to stop the flow of liquid when the temperature in the vicinity of the shear valve exceeds the operating temperature 3.7 test plug device to allow pressure testing of associated pipework 3.8 mounting point rigid attachment facility on the inlet and outlet se
35、ctions of the shear valve 4 Explosion protection measures 4.1 Explosion protection measures shall be taken in accordance with EN 1127-1 and Annex B of EN 13617-1:2012. 4.2 The shear valve shall be explosion protected and shall be Category 2 in accordance with EN 134631. When a shear valve has a vapo
36、ur path, the vapour path shall be category 1 in accordance with EN 134631. The shear valve shall fulfil the requirements for temperature Class T3 and Group IIA to EN 60079-0 or EN 134631. 5 Construction 5.1 General requirements 5.1.1 All electrical and non-electrical equipment and components, intend
37、ed for use in potentially explosive atmospheres, shall be designed and constructed according to good engineering practice and in conformity with the required categories for Group II equipment to ensure avoidance of any ignition source. To classify the category of the equipment it shall be subjected
38、to an ignition hazard assessment in accordance with 5.2 of EN 13463-1:2009. 5.1.2 All materials used in the construction shall be chemically and dimensionally stable under known service conditions. Materials likely to come into contact with fuels in both liquid and vapour phases shall be resistant t
39、o attack by these fuels. Conformity shall be demonstrated by testing in accordance with Clause 8. 5.1.3 Light alloys when used shall conform to the requirements of 6.4.4.2 of EN 134631:2009. If other specifications for explosion protected equipment impose more stringent requirements then the more st
40、ringent requirement shall apply. 5.1.4 All components shall be of corrosion resistant material or shall be provided with a corrosion resistant protective coating. 5.1.5 Outside surfaces likely to be handled shall be free of sharp edges. BS EN 13617-3:2012EN 13617-3:2012 (E) 7 5.2 Specific requiremen
41、ts 5.2.1 Means shall be provided to connect the shear valve to input and output pipework. The means selected shall not fail at forces less than the design shear force of the shear valve. 5.2.2 The shear valve shall be so designed that after fracture of the weak section, the input and output sections
42、 shall be completely decoupled. 5.2.3 The shear valve shall not have a means to prevent the main valve from closing completely when it is operated by the weak section or by the thermal detector. 5.2.4 The thermal detector shall be so constructed that when it operates the main valve closes. 5.2.5 She
43、ar valves for liquids may include a manual means of closing the main valve (liquid) for maintain purposes. 5.2.6 Test plugs, where fitted to shear valves in liquid containment systems, shall be on the inlet side of the main valve. 5.3 Classes of construction Shear valves are classified in accordance
44、 with Table 1. Table 1 Classes of construction Valve type Class I II III Main valve Yes Yes Yes Thermal detector Yes Yes No Check valve Yes No No Pressure relief valve Yes No No Class I and II for liquid pressure systems, Class III for vapour systems only. 5.4 Threads Input and output threads shall
45、be in accordance with ISO 71. 6 Physical properties The physical properties of the shear valve shall conform to Table 2 when tested by the methods indicated. Table 2 Physical properties of shear valve Physical property Requirement Test method Fuel compatibility (preconditioning) Clause 5 B.5 Electro
46、static properties 6.7 of EN 13463-1:2009 EN 13463-1 Fire resistance EN ISO 1182 EN ISO 1182 BS EN 13617-3:2012EN 13617-3:2012 (E) 8 7 Operational requirements The shear valve shall conform to the operational requirements according to Table 3 and Table 4 when tested by the methods indicated. Table 3
47、Operational requirements Item Requirement Test methodHousing No quantifiable leakage, as evidenced by bubbles, or permanent deformation visible to an eye with normal visual acuity. B.2 Main valve No quantifiable leakage, as evidenced by bubbles, or permanent deformation visible to an eye with normal
48、 visual acuity. B.3 Housing B.6.5 No catastrophic damage B.6.7 No leakage B.6 Main valve B.7.5 No catastrophic damage B.7.7 No leakage B.7 Check valve (class I only) No quantifiable leakage or permanent deformation visible to an eye with normal visual acuity B.8 Pressure relief valve (class I only)
49、There shall be a continuous leak through the relief valve B.9 Thermal link 1 (class I and class II only) Main valve shall remain open B.10 Thermal link 2 (class I and class II only) Main valve shall be closed B.11 Main valve closure (Shear valve for liquids) Main valve shall be closed. There shall be no continuous leakage past main valve. Weak section shall have permitted separation of the inlet and outlet sections. B.12 Main valve closure (Shear
