1、September 2016 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 23.100.40!%3d“2561665www.din.d
2、eDIN EN 856Rubber hoses and hose assemblies Rubbercovered spiral wire reinforced hydraulic type Specification;English version EN 856:2015,English translation of DIN EN 856:2016-09Gummischluche und schlauchleitungen Hydraulikschluche mit Drahtspiraleinlage Spezifikation;Englische Fassung EN 856:2015,
3、Englische bersetzung von DIN EN 856:2016-09Tuyaux et flexibles en caoutchouc Type hydraulique avec armature hlicodale de fils mtalliques Spcification;Version anglaise EN 856:2015,Traduction anglaise de DIN EN 856:2016-09SupersedesDIN EN 856:199702www.beuth.deDocument comprises 21 pagesDTranslation b
4、y DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.a09.16 DIN EN 856:2016-09 2 A comma is used as the decimal marker. National foreword This document (EN 856:2015) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and ho
5、se assemblies” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Elastomer-Technik (DIN Standards Committee Elastomer Technology), Working Committee NA 045-02-12 AA Gummi- und Kunststoffschluche sowie Schlauchleitungen (Spiegelgremium
6、 zu CEN/TC 218, ISO/TC 45/SC 1). NOTE Requirements for hydraulic hoses for underground mining are dealt with in separate standards. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1817 DIN ISO 1817 ISO 23529 DIN ISO 23529 Amendments Thi
7、s standard differs from DIN EN 856:1997-02 as follows: a) the standard has been technically and editorially revised; b) Clause 2 has been updated; c) in Sublclause 5.1, Table 1, the tolerances for inside diameters have been updated; d) in Subclause 6.7, details of abrasion resistance testing have be
8、en modified due to the withdrawal of ISO 6945; e) a new normative Annex A has been added; f) a new normative Annex B has been added; g) a new informative Annex C has been added. Previous editions DIN 20023: 1978-11 DIN 20023-1: 1987-03 DIN 20023-2: 1987-03 DIN EN 856: 1997-02 DIN EN 856:2016-09 3 Na
9、tional Annex NA (informative) Bibliography DIN ISO 1817, Rubber, vulcanized Determination of the effect of liquids DIN ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods DIN EN 856:2016-09 4 This page is intentionally blank EUROPEAN STANDARD NOR
10、ME EUROPENNE EUROPISCHE NORM EN 856 April 2015 ICS 23.100.40 Supersedes EN 856:1996English Version Rubber hoses and hose assemblies - Rubber-covered spiral wire reinforced hydraulic type - Specification Tuyaux et flexibles en caoutchouc - Type hydraulique avec armature hlicodale de fils mtalliques -
11、 Spcification Gummischluche und -schlauchleitungen - Hydraulikschluche mit Drahtspiraleinlage - Spezifikation This European Standard was approved by CEN on 31 January 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europe
12、an Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning 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
13、(English, French, German). A version in any other language made by translation under the responsibility of a CEN member into 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, Belg
14、ium, 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, Slovakia, Slovenia, Spain, Sweden, Switze
15、rland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG 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
16、 Members. Ref. No. EN 856:2015 EEN 856:2015 (E) Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Types of hose .5 4 Materials and construction .5 4.1 Hoses 5 4.2 Hose assemblies 5 5 Dimensions .5 5.1 Diameters and concentricity .5 5.2 Length .7 5.2.1 Hoses 7 5.2.2 Hose assemblies 7 6 Re
17、quirements .8 6.1 Hydrostatic requirements .8 6.2 Minimum bend radius 8 6.3 Impulse test requirements 9 6.4 Leakage of hose assemblies 9 6.5 Cold flexibility 9 6.6 Adhesion between components .9 6.7 Abrasion resistance 9 6.8 Fluid resistance9 6.8.1 Test pieces .9 6.8.2 Oil resistance 10 6.8.3 Water
18、based fluid resistance . 10 6.8.4 Water resistance . 10 6.9 Ozone resistance 10 7 Designation . 10 8 Marking 10 8.1 Hoses . 10 8.2 Hose assemblies . 11 Annex A (normative) Procedure for the measurement of abrasion 12 A.1 Apparatus 12 A.2 Method . 13 A.3 Test pieces 13 A.4 Condition of test pieces .
19、13 A.5 Procedure 14 A.6 Expression of results . 14 A.7 Test report . 14 Annex B (normative) Type and routine testing of production hoses . 16 Annex C (informative) Production acceptance testing . 17 DIN EN 856:2016-092 EN 856:2015 (E) Foreword This document (EN 856:2015) has been prepared by Technic
20、al 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 October 2015 and conflicting natio
21、nal 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. This document supersed
22、es EN 856:1996. In comparison with EN 856:1996, the following significant changes have been made: updated normative references; tolerances for inside diameter in Table 1; added Annex A; added Annex B; added Annex C. According to the CEN-CENELEC Internal Regulations, the national standards organizati
23、ons 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
24、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 856:2016-093 EN 856:2015 (E) 1 Scope This European Standard specifies requirements for four types of rubber-covered spiral wire reinforced hydraulic hoses and hose
25、assemblies of nominal bore from 6 to 51: Types 4SP, 4SH, R12 and R13. They are all suitable for use with: hydraulic fluids in accordance with ISO 6743-4 with the exception of HFD R, HFD S and HFD T at temperatures ranging from 40 C to +100 C for types 4SP and 4SH and 40 C to +120 C for types R12 and
26、 R13; water based fluids at temperatures ranging from 40 C to 70 C; water fluids at temperatures ranging from 0 C to 70 C. This European Standard does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies. NOTE 1 The hoses are not suitable for use w
27、ith castor oil based nor ester based fluids. NOTE 2 Hoses and hose assemblies are not be operated outside the limits of this standard. NOTE 3 Requirements for hydraulic hoses for underground mining are standardised in a separate standard. 2 Normative references The following documents, in whole or i
28、n 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 latest edition of the referenced document (including any amendments) applies. EN ISO 1302, Geometrical Product Specificatio
29、ns (GPS) - Indication of surface texture in technical product documentation (ISO 1302) EN ISO 1402:2009, Rubber and plastics hoses and hose assemblies - Hydrostatic testing (ISO 1402:2009) EN ISO 4671, Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses
30、and the lengths of hose assemblies (ISO 4671) EN ISO 6743-4, Lubricants, industrial oils and related products (class L) - Classification - Part 4: Family H (Hydraulic systems) (ISO 6743-4) EN ISO 6803, Rubber or plastics hoses and hose assemblies - Hydraulic-pressure impulse test without flexing (IS
31、O 6803) EN ISO 7326, Rubber and plastics hoses - Assessment of ozone resistance under static conditions (ISO 7326) EN ISO 8033:2006, Rubber and plastics hoses - Determination of adhesion between components (ISO 8033:2006) EN ISO 10619-2, Rubber and plastics hoses and tubing - Measurement of flexibil
32、ity and stiffness - Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2) ISO 1817:2005, Rubber, vulcanized - Determination of the effect of liquids ISO 23529, Rubber - General procedures for preparing and conditioning test pieces for physical test methods DIN EN 856:2016-094 EN 856:2015 (
33、E) 3 Types of hose Four types of hose are specified: 1) Type 4SP a 4-steel wire spiral medium pressure hose; 2) Type 4SH a 4-steel wire spiral extra high pressure hose; 3) Type R12 a 4 steel wire spiral heavy duty high temperature hose medium pressure rating; 4) Type R13 a multiple steel wire spiral
34、 heavy duty high temperature hose high pressure rating. 4 Materials and construction 4.1 Hoses Hoses shall consist of an oil and water resistant synthetic rubber lining, spiral plies of steel wire wrapped in alternating directions, and an oil and weather resistant synthetic rubber cover. Each spiral
35、 wire ply shall be separated by an insulating layer of synthetic rubber. 4.2 Hose assemblies Hose assemblies shall only be manufactured with those hose fittings whose functionality has been verified in accordance with subclauses 6.1, 6.3, 6.4 and 6.5 of this European Standard. 5 Dimensions 5.1 Diame
36、ters and concentricity When measured in accordance with EN ISO 4671, the diameters of the hoses shall conform to the values given in Table 1. Table 1 Diameters of hoses Dimensions in millimetres, except nominal bore Nominal bore Inside diameter Type 4SP Type 4SH Type R12 Type R13 min. max. min. max.
37、 min. max. min. max. 6 6,2 7,0 - - - - - - 10 9,4 10,1 - - 9,3 10,1 - - 12 12,6 13,5 - - 12,3 13,5 - - 16 15,8 16,7 - - 15,5 16,7 - - 19 18,8 19,8 19,1 19,8 18,6 19,8 18,6 19,8 25 25,4 26,4 25,5 26,4 25,0 26,4 25,0 26,4 31 31,8 33,0 32,0 33,0 31,4 33,0 31,4 33,0 38 38,0 39,3 38,2 39,3 37,7 39,3 37,7
38、 39,3 51 50,6 52,0 50,6 52,0 50,4 52,0 50,4 52,0 When measured in accordance with EN ISO 4671, the diameter over reinforcement and outside diameter of the hoses shall conform to the values given in Table 2. DIN EN 856:2016-095 EN 856:2015 (E) Table 2 Diameter over reinforcement and outside diameter
39、Dimensions in millimetres, except nominal bore Nominal bore Type 4SP Type 4SH Type R12 Type R13 Diameter over reinforcement Outside diameter of hose Diameter over reinforcement Outside diameter of hose Diameter over reinforcement Outside diameter of hose Diameter over reinforcement Outside diameter
40、of hose min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max. 6 14,1 15,3 17,1 18,7 - - - - - - - - - - - - 10 16,9 18,1 20,6 22,2 - - - - 16,6 17,8 19,5 21,0 - - - - 12 19,4 21,0 23,8 25,4 - - - - 19,9 21,5 23,0 24,6 - - - - 16 23,0 24,6 27,4 29,0 - - - - 23,8 25,4 26,6 28
41、,8 - - - - 19 27,4 29,0 31,4 33,0 27,6 29,2 31,4 33,0 26,9 28,4 29,9 31,5 28,2 29,8 31,0 33,2 25 34,5 36,1 38,5 40,9 34,4 36,0 37,5 39,9 34,1 35,7 36,8 39,2 34,9 36,4 37,6 39,8 31 45,0 47,0 49,2 52,4 40,9 42,9 43,9 47,1 42,7 45,1 45,4 48,6 45,6 48,0 48,3 51,3 38 51,4 53,4 55,6 58,8 47,8 49,8 51,9 55
42、,1 49,2 51,6 51,9 55,0 53,1 55,5 55,8 58,8 51 64,3 66,3 68,2 71,4 62,2 64,2 66,5 69,7 62,5 64,8 65,1 68,3 66,9 69,3 69,5 72,7 DIN EN 856:2016-096 EN 856:2015(E) When measured in accordance with EN ISO 4671, the concentricity of the hoses shall comply with the values given in Table 3. Table 3 Concent
43、ricity of hoses Dimensions in millimetres, except nominal bore Nominal bore Maximum variation in wall thickness Between insidel diameter and outside diameter Between internal diameter and reinforcement diameter 6 0,8 0,5 Over 6 and including 19 1,0 0,7 Over 19 1,3 0,9 5.2 Length 5.2.1 Hoses Hoses sh
44、all be supplied in lengths as specified by the purchaser, subject to a tolerance on the specified lengths of 2 %. When no specific hose lengths have been ordered, the percentages of different lengths in any given delivery shall be as follows: over 20 m : not less than 80 % of total length; over 10 m
45、 up to and including 20 m : not more than 20 % of total length; 1 m up to and including 10 m : not more than 3 % of total length. All hose lengths shall be at least 1 m. 5.2.2 Hose assemblies The tolerances on the length of hose assemblies shall conform to the values given in Table 4. Table 4 Tolera
46、nces of length of hose assemblies Nominal bore Up to and including 25 Over 25 and including 50 Over 50 Hose assembly length mm Tolerance Tolerance Tolerance Up to and including 630 + 7 mm - 3 mm + 12 mm - 4 mm +25 mm -6 mm Over 630 and including 1 250 + 12 mm - 4 mm + 20 mm - 6 mm Over 1 250 and inc
47、luding 2 500 + 20 mm - 6 mm + 25 mm - 6 mm Over 2 500 and including 8 000 + 1,5 % - 0,5 % Over 8 000 + 3 % - 1 % DIN EN 856:2016-097 EN 856:2015 (E) 6 Requirements 6.1 Hydrostatic requirements 6.1.1 When tested in accordance with EN ISO 1402, the maximum working pressure, the proof pressure and burst pressure of the hoses and hose assemblies shall conform to the values given in Table 5. Table 5 Maximum working pressure, proof pressure and burst pressure Nominal bore Maximum working pressure bar aProof pressure bar Burst pressure bar Typ
