Rubber hoses and hose assemblies - Rubber-covered spiral-wire-reinforced hydraulic types for oil-based or water-based fluids - Specification

This document specifies requirements for five types of spiral-wire-reinforced hydraulic hoses and hose assemblies of nominal size from 6,3 to 51.
They are suitable for use with:
— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from −40 °C to +100 °C for types 4SP and 4SH hoses and from −40 °C to +120 °C for types R12, R13 and R15 hoses;
— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from −40 °C to +70 °C;
— water at temperatures ranging from 0 °C to +70 °C.
This document does not include requirements for end fittings. It is limited to requirements for hoses and hose assemblies.
NOTE 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.

Tuyaux et flexibles en caoutchouc - Types hydrauliques avec armature hélicoïdale de fils métalliques pour fluides à base d'huile ou à base d'eau - Spécifications

Gumene cevi in cevni priključki - S spiralnimi žicami ojačene hidravlične cevi za tekočine na oljni ali vodni osnovi - Specifikacija

General Information

Status
Published
Publication Date
10-Jun-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
10-Jun-2020
Due Date
15-Aug-2020
Completion Date
11-Jun-2020

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SLOVENSKI STANDARD
SIST ISO 3862:2020
01-september-2020

Gumene cevi in cevni priključki - S spiralnimi žicami ojačene hidravlične cevi za

tekočine na oljni ali vodni osnovi - Specifikacija

Rubber hoses and hose assemblies - Rubber-covered spiral-wire-reinforced hydraulic

types for oil-based or water-based fluids - Specification

Tuyaux et flexibles en caoutchouc - Types hydrauliques avec armature hélicoïdale de fils

métalliques pour fluides à base d'huile ou à base d'eau - Spécifications
Ta slovenski standard je istoveten z: ISO 3862:2020
ICS:
23.100.40 Cevna napeljava in sklopke Piping and couplings
83.140.40 Gumene cevi Hoses
SIST ISO 3862:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ISO 3862:2020
---------------------- Page: 2 ----------------------
SIST ISO 3862:2020
INTERNATIONAL ISO
STANDARD 3862
Fifth edition
2020-02
Rubber hoses and hose assemblies —
Rubber-covered spiral-wire-
reinforced hydraulic types for
oil-based or water-based fluids —
Specification
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec
armature hélicoïdale de fils métalliques pour fluides à base d'huile ou
à base d'eau — Spécifications
Reference number
ISO 3862:2020(E)
ISO 2020
---------------------- Page: 3 ----------------------
SIST ISO 3862:2020
ISO 3862:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 3862:2020
ISO 3862:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Classification ............................................................................................................................................................................................................ 2

5 Materials and construction ....................................................................................................................................................................... 2

5.1 Hoses ............................................................................................................................................................................................................... 2

5.2 Hose assemblies ..................................................................................................................................................................................... 2

6 Dimensions ................................................................................................................................................................................................................. 2

6.1 Hose diameters and hose concentricity ............................................................................................................................ 2

6.2 Length ............................................................................................................................................................................................................. 5

7 Performance requirements ....................................................................................................................................................................... 5

7.1 General ........................................................................................................................................................................................................... 5

7.2 Hydrostatic requirements ............................................................................................................................................................. 5

7.3 Minimum bend radius ...................................................................................................................................................................... 6

7.4 Resistance to impulse ........................................................................................................................................................................ 6

7.4.1 Oil-based fluid impulse test .................................................................................................................................... 6

7.4.2 Water-based fluid impulse test ........................................................................................................................... 7

7.5 Leakage of hose assemblies ......................................................................................................................................................... 7

7.6 Low temperature flexibility ......................................................................................................................................................... 7

7.7 Adhesion between components ............................................................................................................................................... 7

7.8 Abrasion resistance ............................................................................................................................................................................. 8

7.9 Fluid resistance ...................................................................................................................................................................................... 8

7.9.1 General...................................................................................................................................................................................... 8

7.9.2 Oil resistance ....................................................................................................................................................................... 8

7.9.3 Water resistance .................. .................................................... ......................................................................................... 8

7.10 Ozone resistance.................................................................................................................................................................................... 8

7.11 Visual examination .............................................................................................................................................................................. 8

8 Frequency of testing .......................................................................................................................................................................................... 8

9 Marking .......................................................................................................................................................................................................................... 9

9.1 Hoses ............................................................................................................................................................................................................... 9

9.2 Hose assemblies ..................................................................................................................................................................................... 9

Annex A (normative) Test frequency for type tests and routine tests ............................................................................10

Annex B (informative) Production acceptance tests .........................................................................................................................11

Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on

length of hose assemblies ........................................................................................................................................................................12

Bibliography .............................................................................................................................................................................................................................13

© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 3862:2020
ISO 3862:2020(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products,

Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.

This fifth edition cancels and replaces the fourth edition (ISO 3862:2017), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— in Clause 1, the temperature of water and water-based fluids has been increased from +60 °C to +70 °C;

— in 6.1, definitions of Table 1, Table 2, Table 3 and Table 4 have been updated;

— Table 1 has been split into Table 1, Table 2 and Table 3; subsequent tables and references have been

renumbered;
— dimensions in Table 1, Table 2 and Table3 have been updated;

— in Table 5, Table 6 and Table 7, maximum working pressure, proof pressure and minimum burst

pressure have been updated;

— in 7.4.2 and 7.9.3, the temperature of water and water-based fluids has been increased from +60 °C

to +70 °C;
— in Clause 9, some of the marking requirements have been revised.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 3862:2020
INTERNATIONAL STANDARD ISO 3862:2020(E)
Rubber hoses and hose assemblies — Rubber-covered
spiral-wire-reinforced hydraulic types for oil-based or
water-based fluids — Specification
1 Scope

This document specifies requirements for five types of spiral-wire-reinforced hydraulic hoses and hose

assemblies of nominal size from 6,3 to 51.
They are suitable for use with:

— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging

from −40 °C to +100 °C for types 4SP and 4SH hoses and from −40 °C to +120 °C for types R12, R13

and R15 hoses;

— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging

from −40 °C to +70 °C;
— water at temperatures ranging from 0 °C to +70 °C.

This document does not include requirements for end fittings. It is limited to requirements for hoses

and hose assemblies.

NOTE 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 documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 or thermoplastic — Determination of the effect of liquids

ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of

hoses and the lengths of hose assemblies
ISO 6605, Hydraulic fluid power — Test methods for hoses and hose assemblies

ISO 6743-4, Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H

(Hydraulic systems)

ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing

ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions

ISO 8033:2016, Rubber and plastics hoses — Determination of adhesion between components

ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

ISO 10619-1:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 1: Bending tests at ambient temperature
© ISO 2020 – All rights reserved 1
---------------------- Page: 7 ----------------------
SIST ISO 3862:2020
ISO 3862:2020(E)

ISO 10619-2:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 2: Bending tests at sub-ambient temperatures
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 8330 apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Classification

Five types of hoses 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 hoses 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.
5 Materials and construction
5.1 Hoses

Hoses shall consist of a rubber lining resistant to oil- or water-based hydraulic fluids or water, 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.
5.2 Hose assemblies

Hose assemblies shall be manufactured using hoses conforming to the requirements of this document.

Hose assemblies shall be manufactured only with those hose fittings whose correct functioning has

been verified in accordance with 7.2, 7.4, 7.5 and 7.6. The manufacturer's instructions shall be followed

for the preparation and fabrication of hose assemblies.
6 Dimensions
6.1 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 of hoses shall conform

to the values given in Table 2.
2 © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
SIST ISO 3862:2020
ISO 3862:2020(E)

When measured in accordance with ISO 4671, the outside diameter of hoses shall conform to the values

given in Table 3.

When measured in accordance with ISO 4671, the concentricity of hoses shall conform to the values

given in Table 4.
Table 1 — Inside diameters of hoses
Nominal Inside diameter
size mm
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 9,4 10,1 — — 9,3 10,1 — — 9,3 10,1
12,5 12,6 13,5 — — 12,3 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 18,6 19,8
25 25,4 26,4 25,5 26,4 25,0 26,4 25,0 26,4 25,0 26,4
31,5 31,8 33,0 32,0 33,0 31,4 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 39,3 37,7 39,3
51 50,6 52,0 50,6 52,0 50,4 52,0 50,4 52,0 50,4 52,0
The nominal sizes correspond to those given in ISO 1307.
© ISO 2020 – All rights reserved 3
---------------------- Page: 9 ----------------------
SIST ISO 3862:2
...

INTERNATIONAL ISO
STANDARD 3862
Fifth edition
2020-02
Rubber hoses and hose assemblies —
Rubber-covered spiral-wire-
reinforced hydraulic types for
oil-based or water-based fluids —
Specification
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec
armature hélicoïdale de fils métalliques pour fluides à base d'huile ou
à base d'eau — Spécifications
Reference number
ISO 3862:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 3862:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 3862:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Classification ............................................................................................................................................................................................................ 2

5 Materials and construction ....................................................................................................................................................................... 2

5.1 Hoses ............................................................................................................................................................................................................... 2

5.2 Hose assemblies ..................................................................................................................................................................................... 2

6 Dimensions ................................................................................................................................................................................................................. 2

6.1 Hose diameters and hose concentricity ............................................................................................................................ 2

6.2 Length ............................................................................................................................................................................................................. 5

7 Performance requirements ....................................................................................................................................................................... 5

7.1 General ........................................................................................................................................................................................................... 5

7.2 Hydrostatic requirements ............................................................................................................................................................. 5

7.3 Minimum bend radius ...................................................................................................................................................................... 6

7.4 Resistance to impulse ........................................................................................................................................................................ 6

7.4.1 Oil-based fluid impulse test .................................................................................................................................... 6

7.4.2 Water-based fluid impulse test ........................................................................................................................... 7

7.5 Leakage of hose assemblies ......................................................................................................................................................... 7

7.6 Low temperature flexibility ......................................................................................................................................................... 7

7.7 Adhesion between components ............................................................................................................................................... 7

7.8 Abrasion resistance ............................................................................................................................................................................. 8

7.9 Fluid resistance ...................................................................................................................................................................................... 8

7.9.1 General...................................................................................................................................................................................... 8

7.9.2 Oil resistance ....................................................................................................................................................................... 8

7.9.3 Water resistance .................. .................................................... ......................................................................................... 8

7.10 Ozone resistance.................................................................................................................................................................................... 8

7.11 Visual examination .............................................................................................................................................................................. 8

8 Frequency of testing .......................................................................................................................................................................................... 8

9 Marking .......................................................................................................................................................................................................................... 9

9.1 Hoses ............................................................................................................................................................................................................... 9

9.2 Hose assemblies ..................................................................................................................................................................................... 9

Annex A (normative) Test frequency for type tests and routine tests ............................................................................10

Annex B (informative) Production acceptance tests .........................................................................................................................11

Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on

length of hose assemblies ........................................................................................................................................................................12

Bibliography .............................................................................................................................................................................................................................13

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 3862:2020(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products,

Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.

This fifth edition cancels and replaces the fourth edition (ISO 3862:2017), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— in Clause 1, the temperature of water and water-based fluids has been increased from +60 °C to +70 °C;

— in 6.1, definitions of Table 1, Table 2, Table 3 and Table 4 have been updated;

— Table 1 has been split into Table 1, Table 2 and Table 3; subsequent tables and references have been

renumbered;
— dimensions in Table 1, Table 2 and Table3 have been updated;

— in Table 5, Table 6 and Table 7, maximum working pressure, proof pressure and minimum burst

pressure have been updated;

— in 7.4.2 and 7.9.3, the temperature of water and water-based fluids has been increased from +60 °C

to +70 °C;
— in Clause 9, some of the marking requirements have been revised.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 3862:2020(E)
Rubber hoses and hose assemblies — Rubber-covered
spiral-wire-reinforced hydraulic types for oil-based or
water-based fluids — Specification
1 Scope

This document specifies requirements for five types of spiral-wire-reinforced hydraulic hoses and hose

assemblies of nominal size from 6,3 to 51.
They are suitable for use with:

— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging

from −40 °C to +100 °C for types 4SP and 4SH hoses and from −40 °C to +120 °C for types R12, R13

and R15 hoses;

— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging

from −40 °C to +70 °C;
— water at temperatures ranging from 0 °C to +70 °C.

This document does not include requirements for end fittings. It is limited to requirements for hoses

and hose assemblies.

NOTE 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 documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 or thermoplastic — Determination of the effect of liquids

ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of

hoses and the lengths of hose assemblies
ISO 6605, Hydraulic fluid power — Test methods for hoses and hose assemblies

ISO 6743-4, Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H

(Hydraulic systems)

ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing

ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions

ISO 8033:2016, Rubber and plastics hoses — Determination of adhesion between components

ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

ISO 10619-1:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 1: Bending tests at ambient temperature
© ISO 2020 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 3862:2020(E)

ISO 10619-2:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 2: Bending tests at sub-ambient temperatures
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 8330 apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Classification

Five types of hoses 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 hoses 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.
5 Materials and construction
5.1 Hoses

Hoses shall consist of a rubber lining resistant to oil- or water-based hydraulic fluids or water, 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.
5.2 Hose assemblies

Hose assemblies shall be manufactured using hoses conforming to the requirements of this document.

Hose assemblies shall be manufactured only with those hose fittings whose correct functioning has

been verified in accordance with 7.2, 7.4, 7.5 and 7.6. The manufacturer's instructions shall be followed

for the preparation and fabrication of hose assemblies.
6 Dimensions
6.1 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 of hoses shall conform

to the values given in Table 2.
2 © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 3862:2020(E)

When measured in accordance with ISO 4671, the outside diameter of hoses shall conform to the values

given in Table 3.

When measured in accordance with ISO 4671, the concentricity of hoses shall conform to the values

given in Table 4.
Table 1 — Inside diameters of hoses
Nominal Inside diameter
size mm
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 9,4 10,1 — — 9,3 10,1 — — 9,3 10,1
12,5 12,6 13,5 — — 12,3 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 18,6 19,8
25 25,4 26,4 25,5 26,4 25,0 26,4 25,0 26,4 25,0 26,4
31,5 31,8 33,0 32,0 33,0 31,4 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 39,3 37,7 39,3
51 50,6 52,0 50,6 52,0 50,4 52,0 50,4 52,0 50,4 52,0
The nominal sizes correspond to those given in ISO 1307.
© ISO 2020 – All rights reserved 3
---------------------- Page: 7 ----------------------
ISO 3862:2020(E)
Table 2 — Diameter over the reinforcement of hoses
Nominal Diameter over the reinforcement
size mm
Type 4SP Type 4SH Type R12 Type R13 Type R15
min. max. min. max. min. max. min. max. min. max.
6,3 14,1 15,3 — — — — — — — —
10 16,9 18,1 — — 16,6 17,8 — — — 20,3
12,5 19,4 21,0 — — 19,9 21,5 — — — 24,0
16 23,0 24,6 — — 23,8 25,4 — — — —
19 27,4 29,0 27,6 29,2 26,9 28,4 28,2 29,8 — 32,9
25 34,5 36,1 34,4 36,0 34,1 35,7 34,9 36,4 — 38,9
31,5 45,0 47,0 40,9 42,9 42,7 45,1 45,6 48,0 — 48,4
38 51,4 5
...

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