ISO 3862-2:2005
(Main)Rubber hoses and hose assemblies — Rubber-covered spiral-wire-reinforced hydraulic types — Specification — Part 2: Water-based fluid applications
Rubber hoses and hose assemblies — Rubber-covered spiral-wire-reinforced hydraulic types — Specification — Part 2: Water-based fluid applications
ISO 3862-2:2005 specifies requirements for five types of spiral-wire-reinforced hydraulic hose and hose assembly of nominal size from 6,3 to 51. They are suitable for use with water-based hydraulic fluids HFC, HFAE, HFAS and HFB at temperatures ranging from -40 °C to +60 °C. This part of ISO 3862 does not include requirements for end fittings. It is limited to requirements for the performance of hoses and hose assemblies.
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec armature hélicoïdale de fils métalliques — Spécifications — Partie 2: Applications pour fluide à base d'eau
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 3862-2
First edition
2005-10-01
Rubber hoses and hose assemblies —
Rubber-covered spiral-wire-reinforced
hydraulic types ― Specification —
Part 2:
Water-based fluid applications
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec
armature hélicoïdale de fils métalliques ― Spécifications —
Partie 2: Applications pour fluide à base d'eau
Reference number
©
ISO 2005
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ii © ISO 2005 – All rights reserved
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
5.1 Diameters and concentricity. 2
5.2 Length . 5
6 Performance requirements . 5
6.1 General. 5
6.2 Hydrostatic requirements . 5
6.3 Minimum bend radius. 6
6.4 Resistance to impulse. 7
6.5 Leakage of hose assemblies . 7
6.6 Cold flexibility . 7
6.7 Adhesion between components. 7
6.8 Abrasion resistance. 7
6.9 Fluid resistance. 8
6.10 Ozone resistance . 8
7 Marking . 8
7.1 Hoses . 8
7.2 Hose assemblies. 8
Annex A (normative) Type and routine testing of production hoses . 9
Annex B (informative) Production acceptance testing. 10
Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on
lengths of hose assemblies. 11
Bibliography . 12
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 3862-2 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Hoses (rubber and plastics).
Together with Part 1 (see below), this part of ISO 3862 cancels and replaces ISO 3862:1991, which has been
technically revised.
ISO 3862 consists of the following parts, under the general title Rubber hoses and hose assemblies —
Rubber-covered spiral-wire-reinforced hydraulic types ― Specification:
⎯ Part 1: Oil-based fluid applications
⎯ Part 2: Water-based fluid applications
iv © ISO 2005 – All rights reserved
INTERNATIONAL STANDARD ISO 3862-2:2005(E)
Rubber hoses and hose assemblies — Rubber-covered spiral-
wire-reinforced hydraulic types ― Specification —
Part 2:
Water-based fluid applications
1 Scope
This part of ISO 3862 specifies requirements for five types of spiral-wire-reinforced hydraulic hose and hose
assembly of nominal size from 6,3 to 51. They are suitable for use with water-based hydraulic fluids HFC,
HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from −40 °C to +60 °C.
NOTE 1 This temperature rating is related to the water-based hydraulic fluids defined in ISO 6743-4.
This part of ISO 3862 does not include requirements for end fittings. It is limited to requirements for the
performance of hoses and hose assemblies.
NOTE 2 It is the responsibility of the user, in consultation with the hose manufacturer, to establish the 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 3862-1, Rubber hoses and hose assemblies — Rubber-covered spiral-wire-reinforced hydraulic types —
Specification — Part 1: Oil-based fluid applications
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 6605, Hydraulic fluid power — Hoses and hose assemblies — Test methods
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
3 Classification
Five types of hose are specified, distinguished by their construction, working pressure and oil resistance:
⎯ Type 4SP: medium-pressure hoses with four plies of steel wire spiral.
⎯ Type 4SH: high-pressure hoses with four plies of steel wire spiral.
⎯ Type R12: heavy-duty high-temperature hose with a medium-pressure rating having four plies of steel
wire spiral.
⎯ Type R13: heavy-duty high-temperature hoses with a high-pressure rating having a multiple-steel-wire
spiral.
⎯ Type R15: heavy-duty high-temperature hoses with an extra-high-pressure rating having a multiple-steel-
wire spiral.
NOTE Types R12, R13 and R15 are not subjected to abrasion resistance tests.
4 Materials and construction
4.1 Hoses
Hoses shall consist of a rubber lining resistant to water-based hydraulic fluids, spiral plies of steel wire
wrapped in alternating directions, and an oil- and weather-resistant rubber cover. Each spiral wire ply shall be
separated by an insulating layer.
4.2 Hose assemblies
Hose assemblies shall be manufactured using hoses conforming to the requirements of this part of ISO 3862.
Hose assemblies shall be manufactured only with those hose fittings whose correct functioning has been
verified in accordance with Subclauses 6.2, 6.4, 6.5 and 6.6 of this part of ISO 3862. The manufacturer's
instructions shall be followed for the preparation and fabrication of hose assemblies.
5 Dimensions
5.1 Hose diameters and hose concentricity
When measured in accordance with ISO 4671, the inside diameter of hoses shall conform to the values given
in Table 1.
When measured in accordance with ISO 4671, the diameter over reinforcement and outside diameter of
hoses shall conform to the values given in Table 2.
When measured in accordance with ISO 4671, the concentricity of hoses shall conform to the values given in
Table 3.
2 © ISO 2005 – All rights reserved
Table 1 — Inside diameters of hoses
Inside diameter
mm
Nominal
size
Type 4SP Type 4SH Type R12 Type R13 Type R15
min. max. min. max. min. max. min. max. min. max.
6,3 6,2 7,0 — — — — — — — —
10 9,3 10,1 — — 9,3 10,1 — — 9,3 10,1
12,5 12,3 13,5 — — 12,3 13,5 — — 12,3 13,5
16 15,5 16,7 — — 15,5 16,7 — — — —
19 18,6 19,8 18,6 19,8 18,6 19,8 18,6 19,8 18,6 19,8
25 25,0 26,4 25,0 26,4 25,0 26,4 25,0 26,4 25,0 26,4
31,5 31,4 33,0 31,4 33,0 31,4 33,0 31,4 33,0 31
...
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