1、June 2007DEUTSCHE NORM English price group 19No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.040.70!,y65“9861918www
2、.din.deDDIN EN 14800Corrugated safety metal hose assemblies for the connection ofdomestic appliances using gaseous fuelsEnglish version of DIN EN 14800:2007-06Gewellte, metallene Sicherheits-Gasschlauchleitungen fr den Anschluss vonHaushalts-GasgertenEnglische Fassung DIN EN 14800:2007-06www.beuth.d
3、eDocument comprises 68 pages 09.07DIN EN 14800:2007-06 2 Start of validity This standard is valid from 01 June 2007. National foreword This standard has been prepared by CEN/TC 236 “Non industrial manually operated shut-off valves for gas and particular combinations valves-other products” (Secretari
4、at: UNI, Italy). The responsible German body involved in its preparation was the Normenausschuss Gastechnik (Gas Technology Standards Committee. It is intended to include this standard in the body of Codes of practice for gas issued by the DVGW Deutscher Verein des Gas- und Wasserfaches e.V. (German
5、 Association of Gas and Water Engineers). This standard includes safety requirements in clauses 4 and 5. The DIN Standard corresponding to the International Standard referred to in the Bibliography of the EN is as follows: ISO 7-1 National Annex NA (informative) Bibliography DIN EN 10226-1, Pipe thr
6、eads where pressure tight joints are made on the threads Part 1: Taper external threads and parallel internal threads Dimensions, tolerances and designation DIN EN 10226-1 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14800March 2007ICS 23.040.70English VersionCorrugated safety metal hose assemb
7、lies for the connection ofdomestic appliances using gaseous fuelsTuyaux flexibles mtalliques onduleux de securit pour leraccordement dappareils usage domestique utilisant desgaz combustiblesGewellte, metallene Sicherheits-Gasschlauchleitungen frden Anschluss von Haushalts-GasgertenThis European Stan
8、dard was approved by CEN on 6 December 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning s
9、uch nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language
10、 and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
11、rg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of
12、exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14800:2007: 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 4.2 Nominal size .10 4.3
13、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 Cover materials11 4.12 Dan
14、gerous 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 Requirements.14 5.5.2 Test pr
15、ocedure.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 temperature.20 5.9.1 Requireme
16、nts.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.22 5.12.2 Test procedure
17、.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 resistance .25 5.15.1 Require
18、ments.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 fittings.29 5.19.1 Requi
19、rements.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 6.3.1 General .32 6.3.2 FPC
20、 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 portable gas bottles or
21、 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 Test definition 56 C.5 Te
22、st 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 ZA.2.1 Systems of attes
23、tation 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-off valves for gas and
24、 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 national standards shall b
25、e 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), see informative Annex ZA,
26、 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 Regulations, the national stand
27、ards 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, Netherlands, Norway, Poland, Po
28、rtugal, 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 objective of this European
29、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 applications. This European
30、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 present culture of usag
31、e 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 regarding individual r
32、equirements 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 assemblies for the connection
33、 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 Normative references The follow
34、ing 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 pressures Appliance categories
35、 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, Gas supply Gas pipewo
36、rk 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 reaction to fire tests E
37、N 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 gaseous fuel EN ISO 9001:200
38、0, 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 Ignitability of building produc
39、ts 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 individual householders insid
40、e 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 with appropriate gasket
41、s 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 strip with corrugations
42、, 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 an appropriate tool 3.7
43、 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 two parts that is desig
44、ned 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 or wholly covering the
45、 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 measured along its axis,
46、 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 centre line of the hose 3.1
47、3 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 flow rate, under stand
48、ard 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 rotation of the hose wit
49、h 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, natural 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 condition
