1、BSI Standards PublicationBS EN 16617:2015Pipework Corrugatedmetal hose assembliesfor combustible gas Performance requirements,testing and markingBS EN 16617:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16617:2015.The UK participation in its preparation w
2、as entrusted to TechnicalCommittee GSE/42, Gas fittings and connections including metalhose and hose assemblies.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. Use
3、rs are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 82801 0ICS 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of t
4、heStandards Policy and Strategy Committee on 30 April 2015.Amendments issued since publicationDate Text affectedBS EN 16617:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16617 April 2015 ICS 23.040.70 English Version Pipework - Corrugated metal hose assemblies for combustible gas - Perfor
5、mance requirements, testing and marking Tuyauterie - Tuyaux flexibles mtalliques onduleux pour les gaz combustibles - Exigences de performances, essais et marquage Rohrleitungen - Gewellte Metallschlauchleitungen fr brennbare Gase - Leistungsanforderungen, Prfung und Kennzeichnung This European Stan
6、dard was approved by CEN on 5 March 2015. 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 bibliographical references concerning su
7、ch 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 of a CEN member into its ow
8、n 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, Former Yugoslav Republic of Macedonia, France, Germany,
9、Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORM
10、UNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16617:2015 EBS EN 16617:2015EN 16617:2015 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references 5 3
11、 Terms and definitions .6 4 Design requirements .7 4.1 General 7 4.2 Nominal size (DN) 8 4.2.1 General 8 4.2.2 Overall length (lO) .8 4.3 Materials .8 4.3.1 General 8 4.3.2 Metal hose, braid, end fittings and ferrules 8 4.3.3 Braid . 10 4.3.4 Gaskets 10 4.4 Attachment of end fittings to the corrugat
12、ed metal hose assembly for gas with or without braid . 10 4.5 External protection . 10 4.6 End fittings 11 4.7 Electrical conductivity 11 4.8 Hose joining 11 4.9 Flow velocity . 11 4.10 Cleanliness 11 5 Performance requirements and tests . 11 5.1 General . 11 5.2 Pressure resistance 12 5.2.1 Require
13、ments 12 5.2.2 Test . 12 5.3 Leak-tightness . 12 5.3.1 Requirement 12 5.3.2 Test . 12 5.4 High temperature resistance . 12 5.4.1 General . 12 5.4.2 Requirements 12 5.4.3 High temperature test . 12 5.5 Elongation . 13 5.5.1 Requirement 13 5.5.2 Test . 13 5.6 Impact test . 13 5.6.1 Requirement 13 5.6.
14、2 Test . 13 5.7 Burst pressure test . 15 5.7.1 Requirement 15 5.7.2 Test . 15 5.8 Pliability and fatigue . 15 5.9 Electrical conductivity 15 6 Self-assessment report 15 7 Installation instruction . 15 BS EN 16617:2015EN 16617:2015 (E) 3 8 Designation 16 9 Marking . 16 9.1 Permanent marking . 16 9.2
15、Marking on label 17 10 Packaging . 17 Annex A (normative) Correspondence between the performance tests described by EN ISO 10380 and those of this European Standard . 18 Bibliography 19 BS EN 16617:2015EN 16617:2015 (E) 4 Foreword This document (EN 16617:2015) has been prepared by Technical Committe
16、e CEN/TC 342 “Metal hoses, hose assemblies, bellows and expansion joints”, the secretariat of which is held by SNV. 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 October 2015, and conflicting na
17、tional standards shall be withdrawn at the latest by October 2015. 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 identifying any or all such patent rights. According to the CE
18、N/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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hunga
19、ry, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16617:2015EN 16617:2015 (E) 5 1 Scope This European Standard specifies general requirements for mate
20、rial, design, manufacture, testing, marking and documentation of corrugated metal hose assemblies for gas of diameter up to DN 300 for gases of the 2nd and 3rd families according to EN 437. This European Standard applies to: Corrugated metal hose assemblies for gas for the supply of combustible gas
21、and having a maximum operating pressure (MOP) less than or equal to 16 bar. This European Standard does not apply to: corrugated metal hose assemblies for gas for engines including turbines and internal combustion engines as stated by Pressure Equipment Directive 97/23/EC; corrugated metal hose asse
22、mblies for the connection of domestic appliances using gaseous fuels according to EN 14800; corrugated metal hose assemblies for gas buried in earth; corrugated metal hose assemblies with nonpermanent detachable end fittings; stainless steel pliable corrugated tubing kits in buildings for gas with a
23、n operating pressure up to 0,5 bar (EN 15266). Users of this European Standard should take into account national standards and existing code of practice in the country of destination. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and
24、 are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 437, Test gases Test pressures Appliance categories EN 549, Rubber materials for seals and diaphr
25、agms for gas appliances and gas equipment EN 682, Elastomeric Seals Materials requirements for seals used in pipes and fittings carrying gas and hydrocarbon fluids EN 1562, Founding Malleable cast irons EN 1775:2007, Gas supply Gas pipework for buildings Maximum operating pressure less than or equal
26、 to 5 bar - Functional recommendations EN 1779, Non-destructive testing Leak testing Criteria for method and technique selection EN 10028-7, Flat products made of steels for pressure purposes Part 7: Stainless steels EN 10088-3, Stainless steels Part 3: Technical delivery conditions for semi-finishe
27、d products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes EN 10242, Threaded pipe fitting in malleable cast iron BS EN 16617:2015EN 16617:2015 (E) 6 EN 12163, Copper and copper alloys Rod for general purposes EN 12166, Copper and copper alloys Wire
28、 for general purposes EN 12168, Copper and copper alloys Hollow rod for free machining purposes EN 14800, Corrugated safety metal hose assemblies for the connection of domestic appliances using gaseous fuels EN ISO 6708:1995, Pipework components Definition and selection of DN (nominal size) (ISO 670
29、8:1995) EN ISO 7369:2004, Pipework Metal hoses and hose assemblies Vocabulary (ISO 7369:2004) EN ISO 10380:2012, Pipework Corrugated metal hoses and hose assemblies (ISO 10380:2012) 3 Terms and definitions For the purpose of this document, the following terms and definitions apply: 3.1 corrugated me
30、tal hose pressure-tight hose made from tube or from welded strip with corrugations, helicoidal or annular to the axis of the hose, made by deforming the metal SOURCE: EN ISO 7369:2004, 3.1.2 3.2 braid tubular woven stocking of metal wires used to provide pressure strength and/or external protection
31、SOURCE: EN ISO 7369:2004, 4.1.9 3.3 end fittings non-detachable part which is permanently attached to the end of the corrugated metal hose and if relevant to the braid and which ensures a workable connection to the pipe system, so as to ensure that it cannot be detached without destruction or altera
32、tion of the corrugated metal gas hose assembly 3.4 corrugated metal gas hose assembly element of flexible pipe-work consisting of a corrugated metal hose, with braid if required, its end fittings with appropriate gaskets if any and, if required, an external protection 3.5 external protection outer c
33、over used to protect the corrugated metal hose assembly against environmental and other outside influences 3.6 nominal length length, including end fittings of the straightened-out hose assembly, unless otherwise specified SOURCE: EN ISO 7369:2004, 4.2.1 BS EN 16617:2015EN 16617:2015 (E) 7 3.7 minim
34、um bending radius radius measured to the centre line of the hose axis at which the corrugated metal gas hose assembly is designed to operate 3.8 gasket component assuring leak-tightness between two adjacent elements 3.9 gas second and third family gas which are commonly referred to as natural gases
35、or liquefied petroleum gases (LPG) SOURCE: EN 437 3.10 maximum operating pressure MOP maximum pressure for which the corrugated metal gas hose assembly can be operated under working conditions 3.11 DN (for components of a pipework system) alphanumeric designation of size comprising the letters DN fo
36、llowed by a dimensionless whole number that is indirectly related to the physical size, in millimetres, of the bore, and is used as a reference Note 1 to entry: This defined number does not represent a measurable value and should not be used for calculation purposes except where specified in the rel
37、evant standard. SOURCE: EN ISO 6708:1995 and EN ISO 7369:2004, 4.1.5 4 Design requirements 4.1 General Corrugated metal hose assemblies for gas, braided or unbraided, are designed to allow frequent movement. These design requirements shall ensure that the construction of corrugated metal hose assemb
38、lies for gas, when properly installed and correctly used, under normal chemical, mechanical and thermal conditions will provide long term safe operation without degradation. For temperature above 50 C care shall be taken to apply a derating factors given in EN ISO 10380. Corrugated metal hose assemb
39、lies for gas are classified according to EN ISO 10380:2012, 4.1: Type 1-50: corrugated metal hoses of high flexibility with high fatigue life; Type 1-10: corrugated metal hoses of high flexibility with standard fatigue life; Type 2-10: corrugated metal hoses of normal flexibility. Corresponding type
40、 test radii for Type 1-50, Type 1-10 and Type 2-10 are given in EN ISO 10380:2012, Table 8 (including the notes). The performance requirements of the tests described in Annex A (normative) shall apply. BS EN 16617:2015EN 16617:2015 (E) 8 4.2 Nominal size (DN) 4.2.1 General The standard nominal sizes
41、 designation shall be as given in EN ISO 10380:2012, 4.2. 4.2.2 Overall length (lO) The tolerances of EN ISO 10380:2012, 4.3, shall apply. The maximum overall length of the corrugated metal hose assemblies for gas is subject to national requirements if any. 4.3 Materials 4.3.1 General Materials for
42、the manufacture of a corrugated metal hose assembly for gas shall be selected from Table 1 and their related suitability for fabrication, e.g. welding, cold forming, etc, as appropriate and the conditions under which they will be used. 4.3.2 Metal hose, braid, end fittings and ferrules 4.3.2.1 Gener
43、al The materials used for metal hose, braid, end fittings and ferrules shall be selected from Table 1. BS EN 16617:2015EN 16617:2015 (E) 9 Table 1 Materials Materials Hose Braid End fittings aand ferrules Corrugated metal hose Stainless steels according to EN 100287 Stainless steels according to EN
44、100883 Stainless steels according to EN 100883 Steel grade Steel number Steel grade Steel number Steel grade Steel number X2CrNi 1911 1.4306 X5CrNi 1810 1.4301 X5CrNi 1810 1.4301 X6CrNiTi 1810 1.4541 X2CrNi 1911 1.4306 X2CrNi 1911 1.4306 X2CrNiMo 17122 1.4404 X6CrNiTi 1810 1.4541 X6CrNiTi 1810 1.454
45、1 X2CrNiMo 18143 1.4435 X2CrNiMo 17122 1.4404 X2CrNiMo 17122 1.4404 X5CrNiMo 17122 1.4401 X2CrNiMo 18143 1.4435 X2CrNiMo 18143 1.4435 X6CrNiMoTi 17122 1.4571 X5CrNiMo 17122 1.4401 X5CrNiMo 17122 1.4401 X6CrNiMoTi 17122 1.4571 X6CrNiMoTi 17122 1.4571 Carbon steel containing a maximum of 0,05 % sulfur
46、 and 0,05 % phosphorus bCopper alloys according to EN 12163 to EN 12168 except for EN 12166 (copper wire) Copper grade Number CuZn39Pb2 CW612N CuZn39Pb3 CW614N CuZn40Pb2 CW617N Malleable cast iron for threaded end fittings according to EN 10242. Material shall be according to EN 1562. Malleable cast
47、 iron parts shall be made weldable by multiple tempering. The carbon content of the welding zones shall not exceed 0,3 %. aThe material specified for end fittings applies only to the parts which are welded or brazed to the hose. bCarbon steel shall not be used for ferrules. BS EN 16617:2015EN 16617:
48、2015 (E) 10 4.3.2.2 Corrosion Where the combination of a corrosive agent (e.g. sulfur) and humidity increases the risk of corrosion, the material shall be selected as a minimum in the corrosion resistance class B as given in Table 2. Table 2 Typical classification of materials for corrosion resistan
49、ce Corrosion resistance class Description Material grade Examples A Basic corrosion resistance Stainless steels X2CrNi1911 B Good corrosion resistance Mo-alloyed stainless steels X2CrNiMo17122 C Advanced corrosion resistance Super-alloyed stainless steels X1CrNiMoCuN20187 D High corrosion resistance Ni-based alloys NiCr22Mo9Nb (NW 6625) 4.3.3 Braid The requirements of EN ISO 10380:2012, 4.6 shall apply. 4.3.4 Gaskets Where non-metallic gaskets are used in the hose assembly
