ISO 4079:2020

INTERNATIONAL ISO
STANDARD 4079
Sixth edition
2020-06
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 4079:2020(E)
©
ISO 2020

---------------------- Page: 1 ----------------------
ISO 4079:2020(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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 4079:2020(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 . 3
7 Performance requirements . 3
7.1 General . 3
7.2 Hydrostatic requirements . 3
7.3 Minimum bend radius . 5
7.4 Resistance to impulse . 6
7.4.1 Oil-based fluid impulse test . 6
7.4.2 Water-based fluid impulse test . 6
7.5 Leakage of hose assemblies . 7
7.6 Low temperature flexibility . 7
7.7 Adhesion between components . 7
7.8 Vacuum resistance . 7
7.9 Abrasion resistance . 7
7.10 Fluid resistance . 8
7.10.1 General. 8
7.10.2 Oil resistance . 8
7.10.3 Water resistance . . . 8
7.11 Ozone resistance. 8
7.12 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

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ISO 4079:2020(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 sixth edition cancels and replaces the fifth edition (ISO 4079:2017), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the temperature of water and water-based fluids has been increased from +60 °C to +70 °C in Clause 1;
— definitions of Table 1, Table 2 and Table 3 have been updated;
— Table 1 has been split into Table 1 and Table 2; all following tables and references have been
renumbered;
— Table 1 and Table 2 have been updated with dimensions from EN 853;
— the proof pressure, the minimum burst pressure and the maximum working pressure have been
updated in Tables 3, 4 and 5;
— the temperature of water and water-based fluids has been changed from +60 °C to +70 °C in 7.4.2
and 7.10.3;
— “oil No. 3” has been changed to” IRM 903 oil” in 7.10.2;
— some of the marking requirements have been revised in Clause 9.
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 4079:2020(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 hoses and hose
assemblies 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 −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 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 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

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ISO 4079:2020(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 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 oil- or water-based hydraulic fluids or water,
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 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 and outside diameters of hoses shall conform
to the values given in Table 1.
When measured in accordance with ISO 4671, the concentricity of hoses shall conform to the values
given in Table 2.
2 © ISO 2020 – All rights reserved

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ISO 4079:2020(E)

Table 1 — Dimensions of hoses
Inside diameter Outside diameter
mm mm
Nomi-
nal Types 1TE,
Type R6 Type R3 Type 1TE Type 2TE Type 3TE Type R6 Type R3
a b
size 2TE, 3TE
min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max.
5 4,9 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 6,4 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 7,9 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 9,5 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 12,7 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 15,8 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 18,8 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 25,4 26,2 — — 25,1 26,2 — — 32,9 35,9 34,4 37,4 — — 36,9 39,3
31,5 31,8 32,8 — — 31,4 32,9 — — — — 40,8 43,8 — — 42,9 46,0
38 38,1 39,1 — — — — — — — — 47,6 51,6 — — — —
51 50,6 51,8 — — — — — — — — 60,3 64,3 — — — —
60 59,6 61,2 — — — — — — — — 70,0 74,0 — — — —
80 79,6 81,2 — — — — — — — — 91,5 96,5 — — — —
100 99,4 101,4 — — — — — — — — 113,5 118,5 — — — —
a
The nominal sizes correspond to those given in ISO 1307.
b
Inside diameters apply to type 3TE only for hose sizes larger than 25.
Table 2 — Concentricity of hoses
Maximum variation in wall thickness between
internal diameter and outside diameter
Nominal size
mm
Up to and including 6,3 0,8
Greater than 6,3 and up to and including 25 1,0
Greater than 25 1,3
6.2 Length
The length of supplied hoses and hose assemblies shall be the subject of agreement between the
manufacturer and the purchaser.
NOTE Recommendations for supplied lengths of hoses and hose assemblies are given in Annex C.
7 Performance requirements
7.1
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 4079
ISO/TC 45/SC 1
Rubber hoses and hose assemblies —
Secretariat: DIN
Textile-reinforced hydraulic types
Voting begins on:
2020­03­13 for oil-based or water-based fluids —
Specification
Voting terminates on:
2020­05­08
Tuyaux et flexibles en caoutchouc — Types hydrauliques avec
armature de textile pour fluides à base d'huile ou à base d'eau —
Spécifications
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 4079:2020(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2020

---------------------- Page: 1 ----------------------
ISO/FDIS 4079:2020(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
CH­1214 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/FDIS 4079:2020(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 . 3
7 Performance requirements . 3
7.1 General . 3
7.2 Hydrostatic requirements . 3
7.3 Minimum bend radius . 5
7.4 Resistance to impulse . 6
7.4.1 Oil-based fluid impulse test . 6
7.4.2 Water-based fluid impulse test0 . 6
7.5 Leakage of hose assemblies . 7
7.6 Low temperature flexibility . 7
7.7 Adhesion between components . 7
7.8 Vacuum resistance . 7
7.9 Abrasion resistance . 7
7.10 Fluid resistance . 8
7.10.1 General. 8
7.10.2 Oil resistance . 8
7.10.3 Water resistance . . . 8
7.11 Ozone resistance. 8
7.12 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/FDIS 4079:2020(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 non­governmental, 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 sixth edition cancels and replaces the fifth edition (ISO 4079:2017), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the temperature of water and water-based fluids has been increased from +60 °C to +70 °C in Clause 1;
— definitions of Table 1, Table 2 and Table 3 have been updated;
— Table 1 has been split into Table 1 and Table 2; all following tables and references have been
renumbered;
— Table 1 and Table 2 have been updated with dimensions from EN 853;
— the proof pressure, the minimum burst pressure and the maximum working pressure have been
updated in Tables 3, 4 and 5;
— the temperature of water and water-based fluids has been changed from +60 °C to +70 °C in 7.4.2
and 7.10.3;
— “oil No. 3” has been changed to” IRM 903 oil” in 7.10.2;
— some of the marking requirements have been revised in Clause 9.
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 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 4079:2020(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 hoses and hose
assemblies 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 −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 6743­4, 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 10619­1:2017, 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/FDIS 4079:2020(E)

ISO 10619­2:2017, 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 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 oil- or water-based hydraulic fluids or water,
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 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 and outside diameters of hoses shall conform
to the values given in Table 1.
When measured in accordance with ISO 4671, the concentricity of hoses shall conform to the values
given in Table 2.
2 © ISO 2020 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/FDIS 4079:2020(E)

Table 1 — Dimensions of hoses
Inside diameter Outside diameter
mm mm
Nomi-
nal Types 1TE,
Type R6 Type R3 Type 1TE Type 2TE Type 3TE Type R6 Type R3
a b
size 2TE, 3TE
min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max.
5 4,9 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 6,4 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 7,9 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 9,5 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 12,7 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 15,8 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 18,8 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 25,4 26,2 — — 25,1 26,2 — — 32,9 35,9 34,4 37,4 — — 36,9 39,3
31,5 31,8 32,8 — — 31,4 32,9 — — — — 40,8 43,8 — — 42,9 46,0
38 38,1 39,1 — — — — — — — — 47,6 51,6 — — — —
51 50,6 51,8 — — — — — — — — 60,3 64,3 — — — —
60 59,6 61,2 — — — — — — — — 70,0 74,0 — — — —
80 79,6 81,2 — — — — — — — — 91,5 96,5 — — — —
100 99,4 101,4 — — — — — — — — 113,5 118,5 — — — —
a
The nominal sizes correspond to those given in ISO 1307.
b
Inside diameters apply to type 3TE only for hose sizes larger than 25.
Table 2 — Concentricity of hoses
Maximum variation in wall thickness between
internal diameter and outside diameter
Nominal size
mm
Up to and including 6,3 0,8
Greater than 6,3 and up to and including 25
...