SIST EN 857:2015

Rubber hoses and hose assemblies - Wire braid reinforced compact type for hydraulic applications - Specification

This European Standard specifies requirements for two types of wire braid reinforced compact hoses and hose assemblies of nominal bore from 6 to 25. They are suitable for the 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  -40°C to +70°C;
- water at temperatures ranging  from  0°C to +70°C;
This standard does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.

Gummischläuche und -schlauchleitungen - Kompakthydraulikschläuche mit Drahtgeflechteinlage - Spezifikation

Diese Europäische Norm legt Anforderungen für zwei Typen von Schläuchen und Schlauchleitungen mit Drahtgeflechteinlagen vom Nenndurchmesser 6 bis 25 fest.
Sie sind geeignet zur Verwendung mit:
   Hydraulikflüssigkeiten nach EN ISO 6743-4 mit Ausnahme von HFD R, HFD S und HFD T in einem Temperaturbereich von – 40 °C bis + 100 °C;
   wässrigen Flüssigkeiten in einem Temperaturbereich von – 40 °C bis + 70 °C;
   Wasser in einem Temperaturbereich von 0 °C bis + 70 °C.
Die Norm enthält keine Anforderungen an die Armaturen. Sie beschränkt sich auf die Leistungsfähigkeit der Schläuche und Schlauchleitungen.
ANMERKUNG 1   Die Schläuche sind für Flüssigkeiten auf Rizinusöl- oder Esterbasis nicht geeignet.
ANMERKUNG 2   Die Schläuche und Schlauchleitungen dürfen nicht außerhalb der Grenzen dieser Norm verwendet werden.
ANMERKUNG 3   Anforderungen an Hydraulikschläuche für den untertägigen Bergbau sind in separaten Normen genormt.

Tuyaux et flexibles en caoutchouc - Type hydraulique compact avec armature de fils métalliques - Spécification

La présente Norme européenne spécifie les exigences pour deux types de tuyaux et assemblages flexibles compacts à armature de fils métalliques de diamètre nominal compris entre 6 et 25.
Ils sont destines à être utilises avec :
-   les fluides hydrauliques selon l'ISO 6743-4 à l'exception de HFD R, HFD S et HFD T dans une plage de températures de -40 °C à +100 °C ;
-   les fluides aqueux dans une plage de températures de -40 °C à +70 °C ;
-   l’eau dans une plage de températures de 0 °C à +70 °C.
La norme ne contient pas d'exigences sur les extrémités de raccordement. Elle se limite aux performances des tuyaux et assemblages flexibles.
NOTE 1   Les tuyaux ne conviennent pas pour des utilisations avec des fluides à base d'huile de ricin ou d'ester.
NOTE 2   Il ne convient pas d’utiliser les tuyaux et assemblages flexibles en dehors des limites de la présente norme.
NOTE 3   Les exigences pour les tuyaux hydrauliques pour mines souterraines font l'objet de normes séparées.

Gumene cevi in cevni priključki - Z jeklenim kordom ojačene trdne hidravlične cevi - Specifikacija

General Information

• Status: Published
• Public Enquiry End Date: 24-Jan-2012
• Publication Date: 23-Apr-2015
• ICS: 23.040.70 - Hoses and hose assemblies
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 17-Apr-2015
• Due Date: 22-Jun-2015
• Completion Date: 24-Apr-2015
• Ref Project: EN 857:2015 - Rubber hoses and hose assemblies - Wire braid reinforced compact type for hydraulic applications - Specification

Relations

• Replaces: SIST EN 857:2000 - Rubber hoses and hose assemblies - Wire braid reinforced compact type for hydraulic applications - Specification
• Effective Date: 01-Jun-2015

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 857:2015
01-junij-2015
1DGRPHãþD
SIST EN 857:2000
*XPHQHFHYLLQFHYQLSULNOMXþNL=MHNOHQLPNRUGRPRMDþHQHWUGQHKLGUDYOLþQHFHYL
6SHFLILNDFLMD
Rubber hoses and hose assemblies - Wire braid reinforced compact type for hydraulic
applications - Specification
Gummischläuche und -schlauchleitungen - Kompakthydraulikschläuche mit
Drahtgeflechteinlage - Spezifikation
Tuyaux et flexibles en caoutchouc - Type hydraulique compact avec armature de fils
métalliques - Spécification
Ta slovenski standard je istoveten z: EN 857:2015
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN 857:2015 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 857:2015

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SIST EN 857:2015

EUROPEAN STANDARD
EN 857

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2015
ICS 23.100.40 Supersedes EN 857:1996
English Version
Rubber hoses and hose assemblies - Wire braid reinforced
compact type for hydraulic applications - Specification
Tuyaux et flexibles en caoutchouc - Type hydraulique Gummischläuche und -schlauchleitungen -
compact avec armature de fils métalliques - Spécification Kompakthydraulikschläuche 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 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.

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 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, Germany, 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
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR 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 Ref. No. EN 857:2015 E
worldwide for CEN national Members.

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SIST EN 857:2015
EN 857:2015 (E)
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 .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 resistance.9
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 abrasion . 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

2

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SIST EN 857:2015
EN 857:2015 (E)
Foreword
This document (EN 857:2015) 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 October 2015 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.
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 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,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

3

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SIST EN 857:2015
EN 857:2015 (E)
1 Scope
This European Standard specifies requirements for two types of wire braid reinforced 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 ranging 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 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 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 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 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
(ISO 6803)
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 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 flexibility and stiffness - Part 2:
Bending tests at sub-ambient temperatures (ISO 10619-2)
4

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SIST EN 857:2015
EN 857:2015 (E)
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
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 resistant 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, 6.4 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 All types Type 1SC Type 2SC
bore
Inside diameter Diameter over Outside Diameter over Outside
reinforcement diameter reinforcement diameter
of hose 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
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
5

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SIST EN 857:2015
EN 857:2015 (E)
When measured in accordance with EN ISO 4671, the concentricity of the hoses shall conform to the values
given in Table 2.
Table 2 — Concentricity of hoses
Dimensions in millimetres, except nominal bore
Maximum variation in wall thickness
Nominal bore
Between inside diameter and Between inside diameter and
outside diameter reinforcement diameter
6 0,8 0,4
Over
...