ISO 11237-1:2004

INTERNATIONAL ISO
STANDARD 11237-1
First edition
2004-01-15


Rubber hoses and hose assemblies —
Wire-braid-reinforced compact types for
hydraulic applications — Specification —
Part 1:
Oil-based fluid applications
Tuyaux et flexibles en caoutchouc — Types hydrauliques compacts
avec armature de fils métalliques — Spécifications —
Partie 1: Applications pour fluides à base d'huile




Reference number
ISO 11237-1:2004(E)
©
ISO 2004

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ISO 11237-1:2004(E)
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ii © ISO 2004 – All rights reserved

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ISO 11237-1:2004(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Classification. 2
4 Materials and construction . 2
4.1 Hoses. 2
4.2 Hose assemblies . 2
5 Dimensions. 2
6 Hose requirements. 3
6.1 Hydrostatic requirements. 3
6.2 Minimum bend radius. 3
6.3 Resistance to impulse . 4
6.4 Leakage of hose assemblies . 4
6.5 Cold flexibility. 4
6.6 Adhesion between components. 4
6.7 Vacuum resistance . 5
6.8 Abrasion resistance. 5
6.9 Fluid resistance. 5
6.10 Ozone resistance . 6
7 Designation. 6
8 Marking. 6
8.1 Hoses. 6
8.2 Hose assemblies . 6
Annex A (informative) Recommendations for lengths of supplied hoses and hose assemblies . 7
Bibliography . 8

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ISO 11237-1:2004(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 11237-1 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Hoses (rubber and plastics).
ISO 11237 consists of the following parts, under the general title Rubber hoses and hose assemblies — Wire-
braid-reinforced compact types for hydraulic applications — Specification:
 Part 1: Oil-based fluid applications
 Part 2 : Water-based fluid applications

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INTERNATIONAL STANDARD ISO 11237-1:2004(E)

Rubber hoses and hose assemblies — Wire-braid-reinforced
compact types for hydraulic applications — Specification —
Part 1:
Oil-based fluid applications
1 Scope
This part of ISO 11237 specifies requirements for three types of wire-braid-reinforced compact hose and hose
assembly of nominal bore from 6,3 to 31,5. They are suitable for use with hydraulic fluids HH, HL, HM, HR
and HV in accordance with ISO 6743-4 at temperatures ranging from −40 °C to +100 °C.
This part of ISO 11237 does not include requirements for end fittings. It is limited to the performance of hoses
and hose assemblies.
NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish compatibility of the
hose with the fluid to be used.
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 1817, Rubber, vulcanized — Determination of the effect of liquids
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of dimensions
ISO 4672:1997, Rubber and plastics hoses — Sub-ambient temperature flexibility tests
ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic pressure impulse test without flexing
ISO 6945, Rubber hoses — Determination of abrasion resistance of the outer cover
ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of suction resistance
ISO 7326:1991, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8033:1991, Rubber and plastics hose — Determination of adhesion between components
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ISO 11237-1:2004(E)
3 Classification
Three types of hose are specified, distinguished by their construction, working pressure, minimum bend radius
and oil resistance:
a) Type 1SC, hoses with a single braid of wire reinforcement;
b) Type 2SC, hoses with two braids of wire reinforcement;
c) Type R16, hoses with one or two braids of wire reinforcement;
d) Type R17, 210 bar constant-pressure hoses with one or two braids of wire reinforcement.
NOTE Type R16 and R17 are not subjected to the vacuum resistance or abrasion resistance tests.
4 Materials and construction
4.1 Hoses
Hoses shall consist of a hydraulic fluid resistant rubber lining, one or two layers of high tensile steel wire and
a
...