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

ISO 4079:2017 specifies requirements for five types of textile-reinforced hydraulic hose and hose assembly of nominal size from 5 to 100.
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;
- water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743‑4 at temperatures ranging from 0 °C to +60 °C;
- water at temperatures ranging from 0 °C to +60 °C.
ISO 4079:2017 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 de textile pour fluides à base d'huile ou à base d'eau - Spécifications

Gumene cevi in cevni priključki - S tekstilom 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

RELATIONS

Buy Standard

Standard
ISO 4079:2017 - Rubber hoses and hose assemblies -- Textile-reinforced hydraulic types for oil-based or water-based fluids -- Specification
English language
13 pages
sale 15% off
Preview
sale 15% off
Preview
Standard
SIST ISO 4079:2020
English language
17 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 4079
Fifth edition
2017-07
Rubber hoses and hose assemblies —
Textile-reinforced hydraulic types
for oil-based or water-based fluids —
Specification
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec
armature de textile pour fluides à base d’huile ou à base d’eau —
Spécifications
Reference number
ISO 4079:2017(E)
ISO 2017
---------------------- Page: 1 ----------------------
ISO 4079:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 4079:2017(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 ................................................................................................................................................................................................................. 4

6.1 Hose diameters and hose concentricity ............................................................................................................................ 4

6.2 Length ............................................................................................................................................................................................................. 4

7 Performance requirements ....................................................................................................................................................................... 4

7.1 General ........................................................................................................................................................................................................... 4

7.2 Hydrostatic requirements ............................................................................................................................................................. 4

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

7.4 Resistance to impulse ........................................................................................................................................................................ 7

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

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

7.4.3 Optional impulse test ................................................................................................................................................... 7

7.5 Leakage of hose assemblies ......................................................................................................................................................... 8

7.6 Cold flexibility .......................................................................................................................................................................................... 8

7.7 Adhesion between components ............................................................................................................................................... 8

7.8 Vacuum resistance ............................................................................................................................................................................... 8

7.9 Fluid resistance ...................................................................................................................................................................................... 9

7.9.1 General...................................................................................................................................................................................... 9

7.9.2 Oil resistance ....................................................................................................................................................................... 9

7.9.3 Water resistance .................. .................................................... ......................................................................................... 9

7.10 Ozone resistance.................................................................................................................................................................................... 9

7.11 Visual examination .............................................................................................................................................................................. 9

8 Marking .......................................................................................................................................................................................................................... 9

8.1 Hoses ............................................................................................................................................................................................................... 9

8.2 Hose assemblies ..................................................................................................................................................................................10

Annex A (normative) Type and routine testing of production hoses ..............................................................................11

Annex B (informative) Periodic testing of production hose ......................................................................................................12

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

lengths of hose assemblies ......................................................................................................................................................................13

© ISO 2017 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 4079:2017(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 on 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 the following

URL: w w w . i s o .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 4079:2015), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— Clause 1 has been updated to be more precise;

— Clause 2 has been updated: ISO 4672 has been deleted and replaced by ISO 10619-2, and ISO 10619-1

has been added;

— 8.1 has been revised: year of publication of a standard shall be included in the marking if previous

edition is used.
iv © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 4079:2017(E)
Rubber hoses and hose assemblies — Textile-reinforced
hydraulic types for oil-based or water-based fluids —
Specification
1 Scope

This document specifies requirements for five types of textile-reinforced hydraulic hose and hose

assembly of nominal size from 5 to 100.
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;

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

from 0 °C to +60 °C;
— water at temperatures ranging from 0 °C to +60 °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 1307, Rubber and plastics hoses — Hose sizes, minimum and maximum inside diameters, and tolerances

on cut-to-length hoses
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 — Hoses and hose assemblies — Test methods

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 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum

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 2017 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 4079:2017(E)

ISO 10619-1:2011, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 1: Bending tests at ambient temperature

ISO 10619-2:2011, 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:

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

Five types of hose are specified, distinguished by their construction, working pressure and minimum

bend radius.
— Type 1TE: hoses with a single braid of textile reinforcement.
— Type 2TE: hoses with one or more braid(s) of textile reinforcement.

— Type 3TE: hoses with one or more braid(s) of textile reinforcement (higher working pressure).

— Type R3: hoses with two braids of textile reinforcement.
— Type R6: hoses with a single braid of textile reinforcement.

NOTE Type 1TE is not subjected to the impulse or vacuum resistance test. Type R3 is not subjected to the

vacuum resistance test. Type R6 is not subjected to the impulse or vacuum resistance test.

5 Materials and construction
5.1 Hoses

Hoses shall consist of a rubber lining that is resistant to water- and oil-based hydraulic fluids, one or

more layers of suitable textile yarn and a weather- and oil-resistant rubber cover.

Hoses shall be designed to enable end fittings to be assembled without removal of the cover.

5.2 Hose assemblies

Hose assemblies shall be manufactured only with those hose fittings whose functionality 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.
2 © ISO 2017 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 4079:2017(E)
© ISO 2017 – All rights reserved 3
Table 1 — Dimensions of hoses
Inside diameter Outside diameter
mm mm
Nominal
Types 1TE,
size Type R6 Type R3 Type 1TE Type 2TE Type 3TE Type R6 Type R3
2TE, 3TE
min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max.
5 4,4 5,2 4,2 5,4 4,5 5,4 10,0 11,6 11,0 12,6 12,0 13,6 10,3 11,9 11,9 13,5
6,3 5,9 6,9 5,6 7,2 6,1 7,0 11,6 13,2 12,6 14,2 13,6 15,2 11,9 13,5 13,5 15,1
8 7,4 8,4 7,2 8,8 7,6 8,5 13,1 14,7 14,1 15,7 16,1 17,7 13,5 15,1 16,7 18,3
10 9,0 10,0 8,7 10,3 9,2 10,1 14,7 16,3 15,7 17,3 17,7 19,3 15,1 16,7 18,3 19,8

12,5 12,1 13,3 11,9 13,5 12,4 13,5 17,7 19,7 18,7 20,7 20,7 22,7 19,0 20,6 23,0 24,6

16 15,3 16,5 15,1 16,7 15,6 16,7 21,9 23,9 22,9 24,9 24,9 26,9 22,2 23,8 26,2 27,8

19 18,2 19,8 18,3 19,9 18,7 19,8 — — 26,0 28,0 28,0 30,0 25,4 27,8 31,0 32,5
25 24,6 26,2 — — 25,1 26,2 — — 32,9 35,9 34,4 37,4 — — 36,9 39,3
31,5 30,8 32,8 — — 31,4 32,9 — — — — 40,8 43,8 — — 42,9 46,0
38 37,1 39,1 — — — — — — — — 47,6 51,6 — — — —
51 49,8 51,8 — — — — — — — — 60,3 64,3 — — — —
60 58,8 61,2 — — — — — — — — 70,0 74,0 — — — —
80 78,8 81,2 — — — — — — — — 91,5 96,5 — — — —
100 98,6 101,4 — — — — — — — — 113,5 118,5 — — — —
The nominal sizes correspond to those given in ISO 1307.
Inside dimensions apply to type 3TE only for nominal sizes larger than 25.
-----
...

SLOVENSKI STANDARD
SIST ISO 4079:2020
01-september-2020

Gumene cevi in cevni priključki - S tekstilom ojačene hidravlične cevi za tekočine

na oljni ali vodni osnovi - Specifikacija

Rubber hoses and hose assemblies - Textile-reinforced hydraulic types for oil-based or

water-based fluids - Specification

Tuyaux et flexibles en caoutchouc - Types hydrauliques avec armature de textile pour

fluides à base d'huile ou à base d'eau - Spécifications
Ta slovenski standard je istoveten z: ISO 4079:2017
ICS:
23.100.40 Cevna napeljava in sklopke Piping and couplings
83.140.40 Gumene cevi Hoses
SIST ISO 4079:2020 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST ISO 4079:2020
---------------------- Page: 2 ----------------------
SIST ISO 4079:2020
INTERNATIONAL ISO
STANDARD 4079
Fifth edition
2017-07
Rubber hoses and hose assemblies —
Textile-reinforced hydraulic types
for oil-based or water-based fluids —
Specification
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec
armature de textile pour fluides à base d’huile ou à base d’eau —
Spécifications
Reference number
ISO 4079:2017(E)
ISO 2017
---------------------- Page: 3 ----------------------
SIST ISO 4079:2020
ISO 4079:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 4079:2020
ISO 4079:2017(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 ................................................................................................................................................................................................................. 4

6.1 Hose diameters and hose concentricity ............................................................................................................................ 4

6.2 Length ............................................................................................................................................................................................................. 4

7 Performance requirements ....................................................................................................................................................................... 4

7.1 General ........................................................................................................................................................................................................... 4

7.2 Hydrostatic requirements ............................................................................................................................................................. 4

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

7.4 Resistance to impulse ........................................................................................................................................................................ 7

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

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

7.4.3 Optional impulse test ................................................................................................................................................... 7

7.5 Leakage of hose assemblies ......................................................................................................................................................... 8

7.6 Cold flexibility .......................................................................................................................................................................................... 8

7.7 Adhesion between components ............................................................................................................................................... 8

7.8 Vacuum resistance ............................................................................................................................................................................... 8

7.9 Fluid resistance ...................................................................................................................................................................................... 9

7.9.1 General...................................................................................................................................................................................... 9

7.9.2 Oil resistance ....................................................................................................................................................................... 9

7.9.3 Water resistance .................. .................................................... ......................................................................................... 9

7.10 Ozone resistance.................................................................................................................................................................................... 9

7.11 Visual examination .............................................................................................................................................................................. 9

8 Marking .......................................................................................................................................................................................................................... 9

8.1 Hoses ............................................................................................................................................................................................................... 9

8.2 Hose assemblies ..................................................................................................................................................................................10

Annex A (normative) Type and routine testing of production hoses ..............................................................................11

Annex B (informative) Periodic testing of production hose ......................................................................................................12

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

lengths of hose assemblies ......................................................................................................................................................................13

© ISO 2017 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 4079:2020
ISO 4079:2017(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 on 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 the following

URL: w w w . i s o .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 4079:2015), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— Clause 1 has been updated to be more precise;

— Clause 2 has been updated: ISO 4672 has been deleted and replaced by ISO 10619-2, and ISO 10619-1

has been added;

— 8.1 has been revised: year of publication of a standard shall be included in the marking if previous

edition is used.
iv © ISO 2017 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 4079:2020
INTERNATIONAL STANDARD ISO 4079:2017(E)
Rubber hoses and hose assemblies — Textile-reinforced
hydraulic types for oil-based or water-based fluids —
Specification
1 Scope

This document specifies requirements for five types of textile-reinforced hydraulic hose and hose

assembly of nominal size from 5 to 100.
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;

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

from 0 °C to +60 °C;
— water at temperatures ranging from 0 °C to +60 °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 1307, Rubber and plastics hoses — Hose sizes, minimum and maximum inside diameters, and tolerances

on cut-to-length hoses
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 — Hoses and hose assemblies — Test methods

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 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum

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 2017 – All rights reserved 1
---------------------- Page: 7 ----------------------
SIST ISO 4079:2020
ISO 4079:2017(E)

ISO 10619-1:2011, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 1: Bending tests at ambient temperature

ISO 10619-2:2011, 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:

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

Five types of hose are specified, distinguished by their construction, working pressure and minimum

bend radius.
— Type 1TE: hoses with a single braid of textile reinforcement.
— Type 2TE: hoses with one or more braid(s) of textile reinforcement.

— Type 3TE: hoses with one or more braid(s) of textile reinforcement (higher working pressure).

— Type R3: hoses with two braids of textile reinforcement.
— Type R6: hoses with a single braid of textile reinforcement.

NOTE Type 1TE is not subjected to the impulse or vacuum resistance test. Type R3 is not subjected to the

vacuum resistance test. Type R6 is not subjected to the impulse or vacuum resistance test.

5 Materials and construction
5.1 Hoses

Hoses shall consist of a rubber lining that is resistant to water- and oil-based hydraulic fluids, one or

more layers of suitable textile yarn and a weather- and oil-resistant rubber cover.

Hoses shall be designed to enable end fittings to be assembled without removal of the cover.

5.2 Hose assemblies

Hose assemblies shall be manufactured only with those hose fittings whose functionality 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.
2 © ISO 2017 – All rights reserved
---------------------- Page: 8 ----------------------
SIST ISO 4079:2020
ISO 4079:2017(E)
© ISO 2017 – All rights reserved 3
Table 1 — Dimensions of hoses
Inside diameter Outside diameter
mm mm
Nominal
Types 1TE,
size Type R6 Type R3 Type 1TE Type 2TE Type 3TE Type R6 Type R3
2TE, 3TE
min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max.
5 4,4 5,2 4,2 5,4 4,5 5,4 10,0 11,6 11,0 12,6 12,0 13,6 10,3 11,9 11,9 13,5
6,3 5,9 6,9 5,6 7,2 6,1 7,0 11,6 13,2 12,6 14,2 13,6 15,2 11,9 13,5 13,5 15,1
8 7,4 8,4 7,2 8,8 7,6 8,5 13,1 14,7 14,1 15,7 16,1 17,7 13,5 15,1 16,7 18,3
10 9,0 10,0 8,7 10,3 9,2 10,1 14,7 16,3 15,7 17,3 17,7 19,3 15,1 16,7 18,3 19,8

12,5 12,1 13,3 11,9 13,5 12,4 13,5 17,7 19,7 18,7 20,7 20,7 22,7 19,0 20,6 23,0 24,6

16 15,3 16,5 15,1 16,7 15,6 16,7 21,9 23,9 22,9 24,9 24,9 26,9 22,2 23,8 26,2 27,8

19 18,2 19,8 18,3 19,9 18,7 19,8 — — 26,0 28,0 28,0 30,0 25,4 27,8 31,0 32,5
25 24,6 26,2 — — 25,1 26,2 — —
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.