DIN EN 1762-2017 Rubber hoses and hose assemblies for liquefied petroleum gas LPG (liquid or gaseous phase) and natural gas up to 25 bar (2 5 MPa) - Specification German version EN.pdf

1、June 2017 English price group 12No part of this translation 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!%e“2666161www.din.deDIN E

2、N 1762Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa) Specification;English version EN 1762:2017,English translation of DIN EN 1762:2017-06Gummischluche und schlauchleitungen fr Flssiggas LPG (flssig oder gasfrmig) u

3、nd Erdgas bis 25 bar (2,5 MPa) Spezifikation;Englische Fassung EN 1762:2017,Englische bersetzung von DIN EN 1762:2017-06Tuyaux et flexibles en caoutchouc pour le gaz de ptrole liqufi GPL (en phase liquide ou gazeuse) et le gaz naturel jusqu 25 bar (2,5 MPa) Spcification;Version anglaise EN 1762:2017

4、,Traduction anglaise de DIN EN 1762:2017-06SupersedesDIN EN 1762:200407 andDIN EN 1762 Corrigendum 1:200806www.beuth.deDocument comprises 24 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.06.17 DIN EN 1762:2017-06 2 A comma is

5、 used as the decimal marker. National foreword This document (EN 1762:2017) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Elastome

6、rtechnik (DIN Standards Committee Elastomer Technology), Working Committee NA 045-02-12 AA “Rubber and plastics hoses and hose assemblies (Mirror Committee to CEN/TC 218; ISO/TC 45/SC 1)”. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO

7、 37 DIN 53504 ISO 188 DIN 53508 ISO 1817 DIN ISO 1817 ISO 4649 DIN ISO 4649 Amendments This standard differs from DIN EN 1762:2004-07 and DIN EN 1762 Corrigendum 1:2008-06 as follows: a) the standard has been technically and editorially revised; b) Clause 2 “Normative references” has been updated; c

8、) Clause 5 has been technically revised; d) Table 3 has been technically amended regarding abrasion resistance and mass increase (Corrigendum DIN EN 1762:2004/AC of June 2008 has been incorporated); e) 8.4 has been divided into 8.4.1 and 8.4.2 to clarify requirements for the two different grades of

9、M and hoses. Previous editions DIN EN 1762: 1997-12, 2004-07 DIN EN 1762 Corrigendum 1: 2008-06 DIN EN 1762:2017-06 3 National Annex NA (informative) Bibliography DIN 53504, Testing of rubber Determination of tensile strength at break, tensile stress at yield, elongation at break and stress values i

10、n a tensile test DIN 53508, Testing of rubber Accelerated ageing DIN ISO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquids DIN ISO 4649, Rubber, vulcanized or thermoplastic Determination of abrasion resistance using a rotating cylindrical drum device DIN EN 1762:2017-0

11、6 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1762 March 2017 ICS 23.040.70 Supersedes EN 1762:2003English Version Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa) - Specifi

12、cation Tuyaux et flexibles en caoutchouc pour le gaz de ptrole liqufi GPL (en phase liquide ou gazeuse) et le gaz naturel jusqu 25 bar (2,5 MPa) - Spcification Gummischluche und -schlauchleitungen fr Flssiggas LPG (flssig oder gasfrmig) und Erdgas bis 25 bar(2,5 MPa) - Spezifikation This European St

13、andard was approved by CEN on 11 December 2016. 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 concern

14、ing 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 of a CEN member into

15、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, Former Yugoslav Republic of Macedonia, France, Ger

16、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES K

17、OMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1762:2017 EEN 1762:2017 (E) 2 Contents Page European foreword 4 1 Scope . 5 2 Normative referen

18、ces . 5 3 Terms and definitions 6 4 Classification 6 5 Materials and construction . 7 5.1 Hose . 7 5.2 Hose assemblies 7 6 Dimensions . 7 6.1 Nominal bore, internal diameters, outside diameters, tolerances, and minimum bend radius . 7 Table 1 Dimensions and tolerances of hoses of types D and D-LT 8

19、Table 2 Dimensions and tolerances of hoses of types SD, SD-LTS and SD-LTR . 9 6.2 Minimum thickness of lining and cover . 9 6.3 Concentricity 9 6.4 Tolerances on length. 9 7 Physical properties . 10 7.1 Rubber Compounds 10 Table 3 Physical properties of compounds. 10 7.2 Finished hose and hose assem

20、blies 11 Table 4 Physical properties of finished hose and hose assemblies . 11 8 Electrical properties 12 8.1 General 12 8.2 Textile reinforced hoses with bonding wires . 12 8.3 Textile reinforced hoses with conducting materials 13 8.4 Wire helix reinforced hoses 13 8.4.1 Grade M-hoses (see 8.2) 13

21、8.4.2 Grade -hoses (see 8.3) 13 8.5 Hose assemblies that are required to be discontinuous . 13 9 Type testing . 13 10 Frequency of testing . 13 11 Marking . 14 11.1 Hoses 14 11.2 Hose assemblies. 14 Annex A (normative) Flammability test . 15 A.1 Method 15 A.2 Assessment 15 DIN EN 1762:2017-06 EN 176

22、2:2017 (E) 3 Figure A.1 Arrangement for flammability test . 16 Annex B (normative) Test frequency . 17 Table B.1 Type and routine tests 17 Annex C (informative) Test frequency 19 Table C.1 Recommended test frequency (Production acceptance tests) . 19 DIN EN 1762:2017-06 EN 1762:2017 (E) 4 European f

23、oreword This document (EN 1762:2017) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastic hoses and hose assemblies”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by

24、endorsement, at the latest by September 2017, and conflicting national standards shall be withdrawn at the latest by September 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying

25、 any or all such patent rights. This document supersedes EN 1762:2003. Compared to EN 1762:2003 the following changes have been made: a) Clause 2: The normative references have been updated; b) Table 3 has been technically amended (property no. 5); in accordance with corrigendum EN 1762:2003/AC of N

26、ovember 2007. c) Clause 8.4 has been divided into 8.4.1 and 8.4.2 to clarify the requirements for the 2 different grades of M and hoses d) Clause 9: The text has been amended editorially; e) Clause 10: The text has been amended editorially; f) Clause 11.1: The text has been amended editorially. Anne

27、x A and B are normative. Annex C is informative. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, F

28、ormer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 1762:2017-06 EN 1762:20

29、17 (E) 5 1 Scope This European Standard specifies the requirements for rubber hoses and rubber hose assemblies used for the transfer of liquefied petroleum gas (LPG) in liquid or gaseous phase and natural gas with a maximum working pressure of 25 bar (2,5 MPa) and vacuum within the temperature range

30、 of 30 C to +70 C and, when designated -LT, 50 C to +70 C. 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 cited applies. For undated references, the lat

31、est edition of the referenced document (including any amendments) applies. EN 1360, Rubber and plastic hoses and hose assemblies for measured fuel dispensing systems - Specification EN ISO 8033, Rubber and plastics hoses - Determination of adhesion between components (ISO 8033) EN ISO 1402, Rubber a

32、nd plastics hoses and hose assemblies - Hydrostatic testing (ISO 1402) EN ISO 10619-1, Rubber and plastics hoses and tubing - Measurement of flexibility and stiffness - Part 1: Bending tests at ambient temperature (ISO 10619-1) EN ISO 4671, Rubber and plastics hoses and hose assemblies - Methods of

33、measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671) EN ISO 10619-2, Rubber and plastics hoses and tubing - Measurement of flexibility and stiffness - Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2) EN ISO 7233, Rubber and plastics hoses and hose assem

34、blies - Determination of resistance to vacuum (ISO 7233) EN ISO 7326, Rubber and plastics hoses - Assessment of ozone resistance under static conditions (ISO 7326) EN ISO 8031, Rubber and plastics hoses and hose assemblies - Determination of electrical resistance and conductivity (ISO 8031) EN ISO 8

35、330, Rubber and plastics hoses and hose assemblies - Vocabulary (ISO 8330) ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain properties ISO 188, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance tests ISO 1817, Rubber, vulcanized or thermopla

36、stic Determination of the effect of liquids ISO 4649, Rubber, vulcanized or thermoplastic Determination of abrasion resistance using a rotating cylindrical drum device DIN EN 1762:2017-06 EN 1762:2017 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in

37、 EN ISO 8330 and the following apply. 3.1 electrically bonded hose/hose assembly hose/hose assembly that uses a metallic wire connection to conduct static electricity 3.2 electrically conductive hose/hose assembly hose/hose assembly that is capable of conducting static electrical charges, using a co

38、nductive rubber layer, without the use of a metallic wire 3.3 electrically discontinuous hose/hose assembly hose /hose assembly that incorporates a metallic wire connection to one end coupling of the assembly only or is electrically insulated from both end-couplings 4 Classification Hoses/hose assem

39、blies for this application are classified into 5 types and 3 grades according to their use, construction, and electrical properties. The maximum WP for all hoses/hose assemblies is 25 bar. Type Application D delivery hose D-LT delivery hose, low temperature; SD suction and delivery hose, helix reinf

40、orced SD-LTS suction and delivery hose “smooth hose”, helix reinforced, low temperature SD-LTR suction and delivery hose, rough bore (having an internal, non-embedded helical wire of stainless steel), low temperature Hoses for this application are divided into 3 grades according to their electrical

41、properties: Grade designation Electrical property M Electrically bonded Electrically conductive using a conductive rubber layer Discontinuous Electrically discontinuous DIN EN 1762:2017-06 EN 1762:2017 (E) 7 5 Materials and construction 5.1 Hose The hose shall consist of the following: a lining of s

42、ynthetic rubber resistant to n-pentane; a reinforcement of layers of woven, braided or spirally wound textile material or braided or spirally wound stainless steel wire, an embedded stainless steel metallic helix reinforcement (types SD, SD-LTS and SD-LTR only); two or more low resistance electrical

43、 bonding wires (grade “M” only); an outer cover of black or coloured synthetic rubber, resistant to abrasion and outdoor exposure, the cover being pricked to allow gas permeation; an internal, non-embedded stainless steel helical wire, suitable for use at 50 C (type SD-LTR only). 5.2 Hose assemblies

44、 Hose assemblies shall incorporate metallic couplings attached to the hose by the assembler or built in by the manufacturer. In order to produce the required electrical properties, the couplings should be attached in accordance with Clause 8. Chlorinated materials shall not be used in contact with a

45、ny stainless steel materials. 6 Dimensions 6.1 Nominal bore, internal diameters, outside diameters, tolerances, and minimum bend radius For hoses without built-in couplings, and when measured in accordance with method A of EN ISO 4671, the internal diameter and outside diameter and their tolerances

46、shall conform to Table 1 or Table 2, depending on the type. For hoses with built-in couplings, the outside diameters in Tables 1 and 2 do not apply. When tested by the method described in EN ISO 10619-1, the value of the minimum bend radius shall be as given in Table 1 or Table 2, depending on the t

47、ype. DIN EN 1762:2017-06 EN 1762:2017 (E) 8 Table 1 Dimensions and tolerances of hoses of types D and D-LT Nominal bore Internal diameter mm Tolerance mm Outside diameter mm Tolerance mm Design minimum bend radius* mm 12 12,7 0,5 22,7 1,0 100 15 15 0,5 25 1,0 120 16 15,9 0,5 25,9 1,0 125 19 19 0,5 3

48、1 1,0 160 25 25 0,5 38 1,0 200 32 32 0,5 45 1,0 250 38 38 0,5 52 1,0 320 50 50 0,6 66 1,2 400 51 51 0,6 67 1,2 400 63 63 0,6 81 1,2 550 75 75 0,6 93 1,2 650 76 76 0,6 94 1,2 650 80 80 0,6 98 1,2 725 100 100 1,6 120 1,6 800 150 150 2,0 174 2,0 1200 200 200 2,0 224 2,0 1600 250 254 2,0 2000 300 305 2,

49、0 2500 *) The design minimum bend radius is measured to the surface of the hose on the inside of the bend. DIN EN 1762:2017-06 EN 1762:2017 (E) 9 Table 2 Dimensions and tolerances of hoses of types SD, SD-LTS and SD-LTR Nominal bore Internal diameter mm Tolerance mm Outside diameter mm Tolerance mm Design minimum bend radius* mm 12 12,7 0,5 22,7 1,0 90 15 15 0,5 25