1、BSI Standards PublicationBS EN 857:2015Rubber hoses and hoseassemblies Wire braidreinforced compact type forhydraulic applications SpecificationBS EN 857:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 857:2015. Itsupersedes BS EN 857:1997, which is withdra
2、wn.BSI, as a member of CEN, is obliged to publish EN 857 as a BritishStandard. However, attention is drawn to the fact that during thedevelopment of this European Standard, the UK committee votedagainst its approval as a European Standard. This is due to concerns about the abrasion test method detai
3、led inAnnex A (normative). It is the opinion of the UK committee that theabrasion test method is not reliable and gives inconsistent results.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/66, Rubber and plastics tubing, hoses and hose assemblies.A list of organizatio
4、ns represented on this committee can be obtainedon request to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 97
5、8 0 580 76537 7ICS 23.040.70;23.100.40 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 April 2015.Amendments/corrigenda issued since publicationDate Text affec
6、tedBS EN 857:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 857 April 2015 ICS 23.100.40 Supersedes EN 857:1996English Version Rubber hoses and hose assemblies - Wire braid reinforced compact type for hydraulic applications - Specification Tuyaux et flexibles en caoutchouc - Type hydrauliq
7、ue compact avec armature de fils mtalliques - Spcification Gummischluche und -schlauchleitungen - Kompakthydraulikschluche mit Drahtgeflechteinlage - Spezifikation This European Standard was approved by CEN on 31 January 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
8、 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 such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. Thi
9、s 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 own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN memb
10、ers are the national standards bodies of 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, Portug
11、al, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, 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 for
12、m and by any means reserved worldwide for CEN national Members. Ref. No. EN 857:2015 EBS EN 857:2015EN 857:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Types of hoses .5 4 Materials and construction .5 4.1 Hoses 5 4.2 Hose assemblies 5 5 Dimensions .5 5.1 Diameters and co
13、ncentricity .5 5.2 Length .6 5.2.1 Hoses 6 5.2.2 Hose assemblies 6 6 Requirements .7 6.1 Hydrostatic requirements .7 6.2 Minimum bend radius 7 6.3 Impulse test requirements 8 6.4 Leakage of hose assemblies 8 6.5 Cold flexibility 8 6.6 Adhesion between components .8 6.7 Vacuum resistance 8 6.8 Abrasi
14、on resistance 9 6.9 Fluid resistance9 6.9.1 Test pieces .9 6.9.2 Oil resistance .9 6.9.3 Water based fluid resistance 9 6.9.4 Water resistance . 10 6.10 Ozone resistance 10 7 Designation . 10 8 Marking 10 8.1 Hoses . 10 8.2 Hose assemblies . 10 Annex A (normative) Procedure for the measurement of ab
15、rasion 11 A.1 Apparatus 11 A.2 Method . 12 A.3 Test pieces 12 A.4 Condition of test pieces . 12 A.5 Procedure 13 A.6 Expression of results . 13 A.7 Test report . 13 Annex B (normative) Type and routine testing of production hoses . 15 Annex C (informative) Production acceptance testing . 16 BS EN 85
16、7:2015EN 857:2015 (E)BS EN 857:2015EN 857:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Types of hoses .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 .6 5.2.1 Hoses 6 5.2.2 Hose assemblies
17、6 6 Requirements .7 6.1 Hydrostatic requirements .7 6.2 Minimum bend radius 7 6.3 Impulse test requirements 8 6.4 Leakage of hose assemblies 8 6.5 Cold flexibility 8 6.6 Adhesion between components .8 6.7 Vacuum resistance 8 6.8 Abrasion resistance 9 6.9 Fluid resistance9 6.9.1 Test pieces .9 6.9.2
18、Oil resistance .9 6.9.3 Water based fluid resistance 9 6.9.4 Water resistance . 10 6.10 Ozone resistance 10 7 Designation . 10 8 Marking 10 8.1 Hoses . 10 8.2 Hose assemblies . 10 Annex A (normative) Procedure for the measurement of abrasion 11 A.1 Apparatus 11 A.2 Method . 12 A.3 Test pieces 12 A.4
19、 Condition of test pieces . 12 A.5 Procedure 13 A.6 Expression of results . 13 A.7 Test report . 13 Annex B (normative) Type and routine testing of production hoses . 15 Annex C (informative) Production acceptance testing . 16 BS EN 857:2015EN 857:2015 (E) 3 Foreword This document (EN 857:2015) has
20、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 October 20
21、15 and conflicting national 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
22、. This document supersedes EN 857:1996. In comparison with EN 857:1996, 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 natio
23、nal 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, Hungary, Iceland, Ireland, Italy, Latvia, Lith
24、uania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 857:2015EN 857:2015 (E)BS EN 857:2015EN 857:2015 (E) 4 1 Scope This European Standard specifies requirements for two types of wire braid rein
25、forced compact hoses and hose assemblies of nominal bore from 6 to 25, types 1SC and 2SC. They are 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; water based fluids at temperatures rangi
26、ng from -40 C to +70 C; water 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 with castor oil based nor ester based fluids. NOTE
27、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 separate standards. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document
28、 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 Specifications (GPS) - Indication of surface texture in technic
29、al 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 and the lengths of hose assemblies (ISO 4671) EN IS
30、O 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 (ISO 6803) EN ISO 7233, Rubber and plastics hoses and
31、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 8033:2006, Rubber and plastics hoses - Determination of adhesion between components (ISO 8033:2006) EN ISO 10619-2, Rub
32、ber and plastics hoses and tubing - Measurement of flexibility and stiffness - Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2) BS EN 857:2015EN 857:2015 (E)BS EN 857:2015EN 857:2015 (E) 4 1 Scope This European Standard specifies requirements for two types of wire braid reinforced com
33、pact hoses and hose assemblies of nominal bore from 6 to 25, types 1SC and 2SC. They are 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; water based fluids at temperatures ranging from -4
34、0 C to +70 C; water 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 with castor oil based nor ester based fluids. NOTE 2 Hoses an
35、d hose assemblies are not be operated outside the limits of this standard. NOTE 3 Requirements for hydraulic hoses for underground mining are standardised in separate standards. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are i
36、ndispensable 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 Specifications (GPS) - Indication of surface texture in technical product
37、 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 and the lengths of hose assemblies (ISO 4671) EN ISO 6743-4,
38、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 (ISO 6803) EN ISO 7233, Rubber and plastics hoses and hose assem
39、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 8033:2006, Rubber and plastics hoses - Determination of adhesion between components (ISO 8033:2006) EN ISO 10619-2, Rubber and pl
40、astics hoses and tubing - Measurement of flexibility and stiffness - Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2) BS EN 857:2015EN 857:2015 (E) 5 ISO 1817:2005, Rubber, vulcanized - Determination of the effect of liquids ISO 23529, Rubber - General procedures for preparing and con
41、ditioning test pieces for physical test methods 3 Types of hoses Two types of hoses are specified: 1) type 1SC hoses with a single braid of wire reinforcement; 2) type 2SC hoses with two braids of wire reinforcement. 4 Materials and construction 4.1 Hoses Hoses shall consist of an oil and water resi
42、stant synthetic rubber lining, one or two layers of high tensile steel wire and an oil and weather resistant synthetic rubber cover. 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
43、.4 and 6.5 of this European Standard. 5 Dimensions 5.1 Diameters 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 All types T
44、ype 1SC Type 2SC Inside diameter Diameter over reinforcement Outside diameter of hose Diameter over reinforcement Outside diameter of hose min. max. min. max. max. min. max. max. 6 6,4 6,9 9,6 10,8 13,5 10,6 11,7 14,2 8 7,9 8,5 10,9 12,1 14,5 12,1 13,3 16,0 10 9,5 10,1 12,7 14,5 16,9 14,4 15,6 18,3
45、12 12,7 13,5 15,9 18,1 20,4 17,5 19,1 21,5 16 15,8 16,7 19,8 21,0 23,0 20,5 22,3 24,7 19 18,8 19,8 23,2 24,4 26,7 24,6 26,4 28,6 25 25,4 26,4 30,7 31,9 34,9 32,5 34,3 36,6 BS EN 857:2015EN 857:2015 (E)BS EN 857:2015EN 857:2015 (E) 6 When measured in accordance with EN ISO 4671, the concentricity of
46、the hoses shall conform to the values given in Table 2. Table 2 Concentricity of hoses Dimensions in millimetres, except nominal bore Nominal bore Maximum variation in wall thickness Between inside diameter and outside diameter Between inside diameter and reinforcement diameter 6 0,8 0,4 Over 6 and
47、including 19 1,0 0,6 Over 19 1,3 0,8 5.2 Length 5.2.1 Hoses Hoses shall 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 a
48、s follows: over 20 m : not less than 80 % of total length; over 10 m, 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. The length of hose shall be at least 1 m. 5.2.2 Hose assemblies The tolerances on the length of hose
49、 assemblies shall conform to the values given in Table 3. Table 3 Tolerances of length of hose assemblies Hose assembly length mm Tolerances Up to and including 630 + 7 mm 3 mm Over 630, up to and including 1 250 + 12 mm 4 mm Over 1 250, up to and including 2 500 + 20 mm 6 mm Over 2 500, up to and including 8 000 + 1,5 % 0,5 % Over 8 000 + 3 % 1 % BS EN 857:2015EN 857:2015 (E)BS EN 857:2015EN 857:2015 (E) 6 When measured in accordance with EN ISO 4671, the concentricity of the hoses shall conform to the values give
