1、BRITISH STANDARD BS EN 14800:2007 Corrugated safety metal hose assemblies for the connection of domestic appliances using gaseous fuels The European Standard EN 14800:2007 has the status of a British Standard ICS 23.040.70 BS EN 14800:2007 This British Standard was published under the authority of t
2、he Standards Policy and Strategy Committee on 30 April 2007 BSI 2007 ISBN 978 0 580 50480 8 National foreword This British Standard was published by BSI. It is the UK implementation of EN 14800:2007. The UK participation in its preparation was entrusted to Technical Committee GSE/1, Gas fittings and
3、 connections. A list of organizations represented on GSE/1 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. Compliance with a British Standard cannot confer immunit
4、y from legal obligations. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14800 March2007 ICS23.040.70 EnglishVersion Corrugatedsafetymetalhoseassembliesfortheconnection domesticapplianceusinggaseousfuels Tuyauxflexiblesmtalliquesonduleuxdes
5、ecuritpourle raccordementdappareilsusagedomestiqueutilisantdes gazcombustibles Gewellte,metalleneSicherheitsGasschlauchleitungenfr denAnschlussvonHaushaltsGasgerten ThisEuropeanStandardwasapprovedbyCENon6December2006. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheco
6、nditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,Germa
7、n).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusas the officialversions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland, France,Germa
8、ny,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,P ortugal, Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassar
9、t,36B1050Brussels 2007CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14800:2007:EEN 14800:2007 (E) 2 Contents Page Foreword5 Introduction .6 1 Scope 7 2 Normative references 7 3 Terms and definitions .8 4 Construction requirements.9 4.1 General9 4.
10、2 Nominal size .10 4.3 Materials .10 4.4 Requirements for the connection between hose and fittings.10 4.5 End fittings design requirements.10 4.6 CMG hose assembly lengths11 4.7 Corrosion requirements11 4.8 Insulation requirements 11 4.9 Electric conductivity requirements11 4.10 Hygiene .11 4.11 Cov
11、er materials11 4.12 Dangerous substances .11 5 Performance requirements and tests 12 5.1 General12 5.2 Test sequence schedule .12 5.3 Leak-tightness14 5.3.1 Requirements.14 5.3.2 Test procedure.14 5.4 Structural strength.14 5.4.1 Requirements.14 5.4.2 Test procedure.14 5.5 Flow rate .14 5.5.1 Requir
12、ements.14 5.5.2 Test procedure.15 5.5.3 Conversion of air flow rate .17 5.6 Electric continuity18 5.6.1 Requirements.18 5.6.2 Test procedure.18 5.7 Tension .18 5.7.1 Requirements.18 5.7.2 Test procedure.18 5.8 Durability of marking.19 5.8.1 Requirements.19 5.8.2 Test procedure.19 5.9 Working tempera
13、ture.20 5.9.1 Requirements.20 5.9.2 Test procedure.20 5.10 Corrosion resistance.20 5.10.1 Requirements.20 5.10.2 Test procedure.20 EN 14800:2007 (E) 3 5.11 Reaction to fire 21 5.11.1 Requirements.21 5.11.2 Testing and assessment methods.21 5.12 Resistance to high temperature.22 5.12.1 Requirements.2
14、2 5.12.2 Test procedure.22 5.13 Suppleness 22 5.13.1 Requirements.22 5.13.2 Test procedure.22 5.14 Bending performance .22 5.14.1 Bending performance for type 1 hoses with non-restricted bend radius .22 5.14.2 Bending performance for type 2 hoses having a restricted bend radius24 5.15 Flexing resist
15、ance .25 5.15.1 Requirements.25 5.15.2 Test procedure.25 5.16 Torsion resistance.26 5.16.1 Requirements.26 5.16.2 Test procedure.27 5.17 Impact/crushing resistance27 5.17.1 Requirements.27 5.17.2 Test procedure.28 5.18 Penetration resistance28 5.18.1 Requirements.28 5.18.2 Test method .28 5.19 End f
16、ittings.29 5.19.1 Requirements.29 5.19.2 Test procedures.29 5.19.3 End fittings bodies manufactured from more than one part 30 6 Evaluation of conformity 31 6.1 General .31 6.2 Type testing .31 6.2.1 Initial type testing 31 6.2.2 Subsequent type testing.32 6.3 Factory production control (FPC)32 6.3.
17、1 General .32 6.3.2 FPC requirements for all manufacturers.32 6.3.3 Manufacturer-specific FPC system requirements .34 6.4 Installation instruction35 6.5 Packaging.36 Annex A (informative) Hose fitting design requirements for connection to the gas supply pipework, to the pressure reduction device of
18、portable gas bottles or to domestic appliance 37 Annex B (normative) Thermal attack by a single burning item53 B.1 General .53 B.2 Scope54 B.3 Standardized mounting and fixing 54 Annex C (normative) Single-flame source test55 C.1 General .55 C.2 Scope55 C.3 Standardized mounting and fixing 56 C.4 Te
19、st definition 56 C.5 Test duration56 Annex ZA (informative) Clauses of this EN addressing the provisions of EU Construction Products Directive.57 ZA.1 Scope and relevant characteristics .57 EN 14800:2007 (E) 4 ZA.2 Procedure for attestation of conformity of corrugated safety metal hose assemblies59
20、ZA.2.1 Systems of attestation of conformity 59 ZA.2.2 EC Certificate and Declaration of conformity.61 ZA.3 CE Marking and labelling 62 Bibliography 66 EN 14800:2007 (E) 5 Foreword This document (EN 14800:2007) has been prepared by Technical Committee CEN/TC 236 “Non industrial manually operated shut
21、-off valves for gas and particular combinations valves-other products”, the secretariat 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 September 2007, and conflicting nat
22、ional standards shall be withdrawn at the latest by December 2008. 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 89/106/EC. For relationship with EU Directive(s), se
23、e informative Annex ZA, which is an integral part of this document. For corrugated metal gas hose assemblies pre-installed to a gas appliance and put on the market as one unit the Gas Appliance Directive is applicable. Additional requirements may apply. According to the CEN/CENELEC Internal Regulati
24、ons, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherla
25、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14800:2007 (E) 6 Introduction This European Standard contains product characteristics relating to the safety of persons, animal and property and the protection of their environment. The obje
26、ctive of this European Standard is to achieve safe operation of corrugated metal gas hose assemblies by specifying the requirements of performance, materials and test methods. These assemblies are designed for the use with fixed applications; they may also be used for the connection of movable appli
27、cations. This European Standard is based on a balance of requirements given by the major national European Gas Authorities for corrugated metal hose assemblies for the connection of domestic gas appliances. It reflects the recognised practise and technology of products approved today as well as the
28、present culture of usage by the consumer. The European Standard describes two product types, one with an unrestricted bending radius and one with a restricted bending radius. The introduction of new technologies supported by National Gas Authorities can require the adoption of this European Standard
29、 regarding individual requirements and tests. Attention is drawn to the need for careful quality control as given in EN ISO 9001. EN 14800:2007 (E) 7 1 Scope This European Standard specifies the requirements of performance, the material and the test methods of corrugated safety metal gas hose assemb
30、lies for the connection of domestic appliances, in order to achieve save operation. The corrugated metal gas hose assemblies according to this European Standard are suitable for the connection of domestic appliances inside or outside a dwelling, using gas at a pressure lower than 0,5 bar. 2 Normativ
31、e 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 437:2003, Test gases Test pressur
32、es Appliance categories EN 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 1418, Welding personnel Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials EN 1775:1998
33、, Gas supply Gas pipework for buildings Maximum operating pressure 5 bar Functional recommendations EN 13133, Brazing Brazer approval EN 13134, Brazing Procedure approval EN 13501-1:2006, Fire classification of construction products and building elements Part 1: Classification using test data from r
34、eaction to fire tests EN 13823, Reaction to fire tests for building products Building products excluding floorings exposed to the thermal attack by a single burning item prEN 15069:2004, Safety gas connection valves for metal hose assemblies used for the connection of domestic appliances using gaseo
35、us fuel EN ISO 9001:2000, Quality management systems Requirements (ISO 9001:2000) EN ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests (ISO 9227:2006) EN ISO 10380, Pipework Corrugated metal hoses and hose assemblies (ISO 10380:2003) EN ISO 11925-2, Reaction to fire tests Ignitabi
36、lity of building products subjected to direct impingement of flame Part 2: Single-flame source test (ISO 11925-2:2002) EN 14800:2007 (E) 8 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 domestic appliance appliance intended for use by indivi
37、dual householders inside or outside a dwelling 3.2 corrugated safety metal gas hose assembly element of flexible pipe-work to be fitted between the gas supply valve or the socket of a quick disconnect device and the appliance inlet connection, consisting of a corrugated metal hose, its end fittings
38、with appropriate gaskets and, if required, an armouring and/or an external protection 3.3 CMG hose assembly abbreviation used in this European Standard to denote a corrugated safety metal gas hose assembly as defined in 3.2 3.4 corrugated metal hose pressure-tight hose made from tube or from welded
39、strip with corrugations, helicoidal or annular to the axis of the hose, made by deforming the metal 3.5 end fittings components attached to a metal hose so as to constitute a metal hose assembly 3.6 screwed connection leak-tight threaded connection, which can only be assembled and disassembled with
40、an appropriate tool 3.7 integrated non-detachable fitting end fitting, permanently attached to the corrugated metal hose by such a method as welding or brazing, so as to ensure that it can not be detached without destruction or alteration 3.8 safety quick connection device end fitting consisting of
41、two parts that is designed to permit quick connection and disconnection without tools, leak-tight so that it prevents the release of gas from the upstream pipe work when disconnected and designed to prevent accidental disconnection and incorrect operation 3.9 armouring external reinforcement, partly
42、 or wholly covering the corrugated metal hose, which is designed to improve the mechanical characteristics of the hose 3.10 external protection outer cover used to protect the hose from environmental and other outside influences EN 14800:2007 (E) 9 3.11 nominal length length of a CMG hose assembly m
43、easured along its axis, including its end fittings, but excluding any swivel nuts. CMG hose assemblies incorporating the plug of a quick connection device are measured to the point where the plug enters the socket in the working position 3.12 non-restricted bending radius radius measured to the cent
44、re line of the hose 3.13 restricted bending radius bending radius, which by the use of an additional component is limited to a minimum value measured to the centre line of the hose. A lower value can only be reached by permanently deforming or destroying the additional component 3.14 rated flow-rate
45、 flow rate, under standard reference conditions, at a given pressure drop 3.15 seal gasket non metallic element assuring leak-tightness between two adjacent elements, be they fixed or moveable in respect to each other 3.16 swivel joint rotary joint element or device that enables a continuous axial r
46、otation of the hose with respect to the gas inlet or the appliance, and which functions without reducing the leak-tightness of the flexible connection 3.17 gas first, second and third family gas as referred to in EN 437:2003, Table 1. These gases are commonly referred to as manufactured gases, natur
47、al gases or liquefied petroleum gases (LPG) 4 Construction requirements 4.1 General These requirements shall ensure that the construction of a CMG hose assembly which, when properly installed and correctly used, under normal chemical, mechanical and thermal conditions will provide long term safe ope
48、ration without degradation. CMG hose assemblies are subdivided into: type 1: CMG hose assemblies having no additional component limiting their bending radii; type 2: CMG hose assemblies having an additional component limiting their bending radii. EN 14800:2007 (E) 10 4.2 Nominal size The nominal size of CMG hose assemblies shall be designated either DN 8 or DN 12 and shall be determined by the flow rate requirements given in Table 2. For the purpose of this European Standard, DN 10 and DN 15 fittings shown in Annex A are considered
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