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

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 of −30 °C to +70 °C and, when designated -LT, −50 °C to +70 °C.

Gummischläuche und -schlauchleitungen für Flüssiggas LPG (flüssig oder gasförmig) und Erdgas bis 25 bar (2,5 MPa) - Spezifikation

Diese Europäische Norm legt die Anforderungen für Gummischläuche und Gummischlauchleitungen fest, die für den Transport von Flüssiggas (LPG) in der flüssigen oder gasförmigen Phase verwendet werden sowie für Erdgas mit einem maximalen Betriebsdruck von 25 bar (2,5 MPa) und einem Vakuum in einem Temperaturbereich von -30 °C bis +70 °C und, -50 °C bis +70 °C, wenn es mit -LT bezeichnet wird.

Tuyaux et flexibles en caoutchouc pour le gaz de pétrole liquéfié GPL (en phase liquide ou gazeuse) et le gaz naturel jusqu'à 25 bar (2,5 MPa) -Spécification

La présente Norme européenne spécifie les exigences relatives aux tuyaux et flexibles en caoutchouc destinés au transfert de gaz de pétrole liquéfié (GPL) en phase liquide ou gazeuse et de gaz naturel avec une pression maximale de service de 25 bar (2,5 MPa) et sous vide dans la plage de température de −30 °C à +70 °C, et pour le type LT de −50 °C à +70 °C.

Gumene cevi in cevni priključki za utekočinjeni naftni plin, LPG (tekoča ali plinska faza) in zemeljski plin do 25 barov (2,5 MPa) - Specifikacija

Ta evropski standard določa zahteve za gumene cevi in njihove priključke za prenos utekočinjenega naftnega plina (LPG) v tekočem ali plinskem stanju in zemeljskega plina z največjo vrednostjo delovnega tlaka 25 barov (2,5 MPa) ter vakuumom v temperaturnem območju od –30 ºC do 70 ºC in (kadar je določeno) –LT, od –50 ºC do 70 ºC.

General Information

Status
Published
Publication Date
18-Dec-2018
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
19-Dec-2018
Completion Date
19-Dec-2018

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gummischläuche und -schlauchleitungen für Flüssiggas LPG (flüssig oder gasförmig) und Erdgas bis 25 bar (2,5 MPa) - SpezifikationTuyaux et flexibles en caoutchouc pour le gaz de pétrole liquéfié GPL (en phase liquide ou gazeuse) et le gaz naturel jusqu'à 25 bar (2,5 MPa) -SpécificationRubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa) - Specification83.140.40Gumene ceviHoses75.200Petroleum products and natural gas handling equipmentICS:Ta slovenski standard je istoveten z:EN 1762:2018SIST EN 1762:2019en,fr,de01-marec-2019SIST EN 1762:2019SLOVENSKI

STANDARDSIST EN 1762:20171DGRPHãþD
SIST EN 1762:2019
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1762
December
t r s z ICS
t uä r v rä y r Supersedes EN
s y x tã t r s yEnglish Version

Rubber hoses and hose assemblies for liquefied petroleum Tuyaux et flexibles en caoutchouc pour le gaz de

Gummischläuche und æschlauchleitungen für Flüssiggas This European Standard was approved by CEN on

{ November
t r s zä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels

t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s y x tã t r s z ESIST EN 1762:2019

EN 1762:2018 (E) 2 Contents Page European foreword ....................................................................................................................................................... 3 1 Scope .................................................................................................................................................................... 4 2 Normative references .................................................................................................................................... 4 3 Terms and definitions ................................................................................................................................... 5 4 Classification ..................................................................................................................................................... 5 5 Materials and construction .......................................................................................................................... 6 5.1 Hose ...................................................................................................................................................................... 6 5.2 Hose assemblies............................................................................................................................................... 6 6 Dimensions ........................................................................................................................................................ 6 6.1 Nominal bore, internal diameters, outside diameters, tolerances, and minimum bend radius ........................................................................................................................................................ 6 6.2 Minimum thickness of lining and cover .................................................................................................. 8 6.3 Concentricity ..................................................................................................................................................... 8 6.4 Tolerances on length...................................................................................................................................... 8 7 Physical properties ......................................................................................................................................... 9 7.1 Rubber compounds ........................................................................................................................................ 9 7.2 Finished hose and hose assemblies ....................................................................................................... 10 8 Electrical properties ................................................................................................................................... 11 8.1 General ............................................................................................................................................................. 11 8.2 Textile reinforced hoses with bonding wires .................................................................................... 12 8.3 Textile reinforced hoses with conducting materials ....................................................................... 12 8.4 Wire helix reinforced hoses ..................................................................................................................... 12 8.4.1 Grade M-hoses (see 8.2) ............................................................................................................................. 12 8.4.2 -hoses (see 8.3) ............................................................................................................................. 12 8.5 Hose assemblies that are required to be discontinuous ................................................................ 12 9 Type testing .................................................................................................................................................... 12 10 Frequency of testing .................................................................................................................................... 13 11 Marking ............................................................................................................................................................ 13 11.1 Hoses ................................................................................................................................................................. 13 11.2 Hose assemblies............................................................................................................................................ 13 Annex A (normative)

Flammability test ............................................................................................................ 14 A.1 Method ............................................................................................................................................................. 14 A.2 Assessment ..................................................................................................................................................... 14 Annex B (normative)

Test frequency for type tests and routine tests ................................................... 16 Annex C (informative)

Test frequency for production acceptance tests ............................................... 18 Annex D (informative)

Environmental checklist ........................................................................................... 20 Bibliography ................................................................................................................................................................. 22 SIST EN 1762:2019

EN 1762:2018 (E) 3 European foreword This document (EN 1762:2018) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics 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 endorsement, at the latest by June 2019, and conflicting national standards shall be withdrawn at the latest by June 2019. 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 any or all such patent rights. This document supersedes EN 1762:2017. Compared to EN 1762:2017 the following changes have been made: a) the requirements for the construction of the hose have been amended so that hoses do not necessarily have to be pricked; b) a requirement for a comparative measurement of permeation between the rubber materials of cover and lining for hoses which are not pricked (required for type tests and routine tests) has been added; c) the test for resistance to n-pentane (measurement of mass increase/mass reduction) has been removed from Table C.1 “Recommended test frequency for production acceptance tests”; d) an environmental checklist (informative Annex D) has been added; e) the document has been editorially revised. 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, Former 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. SIST EN 1762:2019

EN 1762:2018 (E) 4 1 Scope This document 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 of

« u r °C to +70 °C and, when designated -LTá

« w r °C to +70 °C. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing (ISO 1402) EN ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671) EN ISO 6179, Rubber, vulcanized or thermoplastic — Rubber sheets and rubber-coated fabrics — Determination of transmission rate of volatile liquids (gravimetric technique) (ISO 6179) EN ISO 7233, Rubber and plastics hoses and hose assemblies — 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 8033, Rubber and plastics hoses — Determination of adhesion between components (ISO 8033:2016) EN ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary (ISO 8330) 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 10619-2, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2) 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 thermoplastic — Determination of the effect of liquids ISO 4649, Rubber, vulcanized or thermoplastic — Determination of abrasion resistance using a rotating cylindrical drum device SIST EN 1762:2019

EN 1762:2018 (E) 5 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 8330 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ — ISO Online browsing platform: available at http://www.iso.org/obp 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 conductive 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 assemblies for this application are classified into 5 types and 3 grades according to their use, construction, and electrical properties. The maximum working pressure for all hoses/hose assemblies is 25 bar. The 5 types are as follows: Type Application D delivery hose D-LT delivery hose, low temperature; SD suction and delivery hose, helix reinforced 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 properties: Grade designation Electrical property M Electrically bonded

Electrically conductive using a conductive rubber layer Discontinuous Electrically discontinuous SIST EN 1762:2019

EN 1762:2018 (E) 6 5 Materials and construction 5.1 Hose The hose shall consist of the following: — a lining of synthetic 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 bonding wires (grade “M” only); — an outer cover of black or coloured synthetic rubber, resistant to abrasion and outdoor exposure; the cover may be pricked to allow gas permeation. If the cover is not pricked a comparative measurement of permeation between the rubber materials of cover and lining shall be carried out, see Table 3, item 6; — an internal, non-embedded stainless steel helical wire, suitable for use at –50 °C (type SD-LTR only). 5.2 Hose assemblies 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 any 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 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 type. SIST EN 1762:2019

EN 1762:2018 (E) 7 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 min. bend radiusa

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 31 ±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

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