SIST ISO 12151-3:2014
Connections for hydraulic fluid power and general use - Hose fittings - Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends
Connections for hydraulic fluid power and general use - Hose fittings - Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends
This part of ISO 12151 specifies the general and dimensional requirements for the design and performance of flange hose fittings, made of carbon steel, for nominal hose inside diameters of 12,5 mm to 51 mm inclusive, in accordance with ISO 4397, for use with ports and clamps in accordance with ISO 6162-1 and ISO 6162-2. These hose fittings (see Figure 1 for a typical example) are for use in hydraulic fluid power systems with hose that meets the requirements of the respective hose standards and in general applications with suitable hoses.
Raccordements pour transmissions hydrauliques et applications générales - Raccords de flexible - Partie 3: Raccords de flexible avec brides conformes à l'ISO 6162-1 ou à l'ISO 6162-2
L'ISO 12151-3:2010 sp�cifie les exigences g�n�rales et dimensionnelles pour la conception et les performances des raccords de flexible � bride, en acier au carbone, dont le diam�tre int�rieur nominal est compris entre 12,5 mm et 51 mm inclus en conformit� avec l'ISO 4397, pour utilisation avec des orifices et des manchons conformes � l'ISO 6162-1 et l'ISO 6162-2.
D'autres mat�riaux peuvent �tre utilis�s apr�s accord entre le fabricant et l'utilisateur.
Ces raccords de flexible sont destin�s � �tre utilis�s dans les syst�mes de transmissions hydrauliques avec des tuyaux qui r�pondent aux exigences des normes de tuyaux respectives, et dans des applications g�n�rales lorsqu'il s'agit de tuyaux adapt�s.
Fluidna tehnika - Hidravlika - Spoji za hidravliko in za splošno uporabo - Cevne armature - 3. del: Cevne armature s prirobnicami po ISO 6162-1 ali ISO 6162-2
General Information
Relations
Buy Standard
Standards Content (Sample)
SLOVENSKI STANDARD
SIST ISO 12151-3:2014
01-marec-2014
1DGRPHãþD
SIST ISO 12151-3:2000
Fluidna tehnika - Hidravlika - Spoji za hidravliko in za splošno uporabo - Cevne
armature - 3. del: Cevne armature s prirobnicami po ISO 6162-1 ali ISO 6162-2
Connections for hydraulic fluid power and general use - Hose fittings - Part 3: Hose
fittings with ISO 6162-1 or ISO 6162-2 flange ends
Raccordements pour transmissions hydrauliques et applications générales - Raccords
de flexible - Partie 3: Raccords de flexible avec brides conformes à l'ISO 6162-1 ou à
l'ISO 6162-2
Ta slovenski standard je istoveten z: ISO 12151-3:2010
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
23.100.40 Cevna napeljava in sklopke Piping and couplings
SIST ISO 12151-3:2014 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST ISO 12151-3:2014
---------------------- Page: 2 ----------------------
SIST ISO 12151-3:2014
INTERNATIONAL ISO
STANDARD 12151-3
Second edition
2010-06-15
Connections for hydraulic fluid power
and general use — Hose fittings —
Part 3:
Hose fittings with ISO 6162-1 or
ISO 6162-2 flange ends
Raccordements pour transmissions hydrauliques et applications
générales — Raccords de flexible —
Partie 3: Raccords de flexible avec brides conformes à l'ISO 6162-1 ou
à l'ISO 6162-2
Reference number
ISO 12151-3:2010(E)
©
ISO 2010
---------------------- Page: 3 ----------------------
SIST ISO 12151-3:2014
ISO 12151-3:2010(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
COPYRIGHT PROTECTED DOCUMENT
© ISO 2010
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2010 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 12151-3:2014
ISO 12151-3:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.2
3 Terms and definitions .2
4 Performance requirements.2
5 Designation of hose fittings .2
6 Design.3
7 Manufacture .3
8 Procurement information .4
9 Marking.4
10 Identification statement (reference to this part of ISO 12151) .4
Bibliography.12
© ISO 2010 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 12151-3:2014
ISO 12151-3:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 12151-3 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4,
Connectors and similar products and components.
This second edition cancels and replaces the first edition (ISO 12151-3:1999), which has been technically
revised.
ISO 12151 consists of the following parts, under the general title Connections for hydraulic fluid power and
general use — Hose fittings:
⎯ Part 1: Hose fittings with ISO 8434-3 O-ring face seal ends
⎯ Part 2: Hose fittings with ISO 8434-1 and 8434-4 24 degree cone connector ends with O-rings
⎯ Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends
⎯ Part 4: Hose fittings with ISO 6149 metric stud ends
⎯ Part 5: Hose fittings with ISO 8434-2 37 degree flared ends
⎯ Part 6: Hose fittings with ISO 8434-6 60 degree cone ends
iv © ISO 2010 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 12151-3:2014
ISO 12151-3:2010(E)
Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an
enclosed circuit. In general applications, the fluid can be conveyed under pressure.
Components are connected through their ports by stud ends on fluid conductor connectors to tubes/pipes or to
hose fittings and hoses.
© ISO 2010 – All rights reserved v
---------------------- Page: 7 ----------------------
SIST ISO 12151-3:2014
---------------------- Page: 8 ----------------------
SIST ISO 12151-3:2014
INTERNATIONAL STANDARD ISO 12151-3:2010(E)
Connections for hydraulic fluid power and general use — Hose
fittings —
Part 3:
Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends
1 Scope
This part of ISO 12151 specifies the general and dimensional requirements for the design and performance of
flange hose fittings, made of carbon steel, for nominal hose inside diameters of 12,5 mm to 51 mm inclusive,
in accordance with ISO 4397, for use with ports and clamps in accordance with ISO 6162-1 and ISO 6162-2.
NOTE 1 Materials other than carbon steel can be supplied as agreed between the manufacturer and user.
NOTE 2 For hose fittings used in hydraulic and pneumatic braking systems on road vehicles (as defined in the scope of
ISO/TC 22/SC 2, Road vehicles), see ISO 4038, ISO 4039-1 and ISO 4039-2.
These hose fittings (see Figure 1 for a typical example) are for use in hydraulic fluid power systems with hose
that meets the requirements of the respective hose standards and in general applications with suitable hoses.
Key
1 hose fitting
2 port, flanged head and clamp per ISO 6162-1 or ISO 6162-2
3 O-ring seal
Figure 1 — Typical example of hose fitting connection with ISO 6162-1 or ISO 6162-2 flange end
© ISO 2010 – All rights reserved 1
---------------------- Page: 9 ----------------------
SIST ISO 12151-3:2014
ISO 12151-3:2010(E)
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 4397, Fluid power systems and components — Connectors and associated components — Nominal
outside diameters of tubes and nominal inside diameters of hoses
ISO 5598, Fluid power systems and components — Vocabulary
ISO 6162-1, Hydraulic fluid power — Flange connectors with split or one-piece flange clamps and metric or
inch screws — Part 1: Flange connectors for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar),
DN 13 to DN 127
ISO 6162-2, Hydraulic fluid power — Flange connectors with split or one-piece flange clamps and metric or
inch screws — Part 2: Flange connectors for use at pressures of 35 MPa (350 bar) to 40 MPa (400 bar),
DN 13 to DN 51
ISO 6605, Hydraulic fluid power — Hoses and hose assemblies — Test methods
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 19879, Metallic tube connections for fluid power and general use — Test methods for hydraulic fluid
power connections
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5598 apply.
4 Performance requirements
4.1 Hose assemblies shall meet the performance requirements specified in the appropriate hose
specification without leakage or failure.
4.2 The working pressure of the hose assembly shall be the lower of the pressures given for its flange style
(pressure series) and size in ISO 6162-1 or ISO 6162-2, and in the relevant hose specification.
4.3 The hose-fitting portion of a hose assembly shall be tested in accordance with ISO 19879, and the
complete hose assembly shall be tested in accordance with ISO 6605.
5 Designation of hose fittings
5.1 Hose fittings shall be designated by an alphanumeric code to facilitate ordering. They shall be
designated by the words “Hose fitting”, followed by a space, followed by “ISO 12151-3”, followed by a spaced
hyphen, then the shape symbol (see 5.2), followed by another spaced hyphen, the style letter L for 2,5 MPa
to 35 MPa (25 bar to 350 bar) flanges or the style letter S for 40 MPa (400 bar) flanges in accordance with
ISO 6162-1 or ISO 6162-2, followed by the flange size from ISO 6162-1 or ISO 6162-2, a multiplication
symbol (×) and the hose size (nominal hose inside diameter in accordance with ISO 4397).
EXAMPLE A 45° elbow hose fitting, with a medium drop length (E45M) with a 40 MPa (400 bar) flanged head (S)
32 mm nominal flange size and 31,5 nominal ID hose, is designated as follows:
Hose fitting ISO 12151-3 - E45M - S32 × 31,5
5.2 The letter symbols as given in Table 1 shall be used.
2 © ISO 2010 – All rights reserved
---------------------- Page: 10 ----------------------
SIST ISO 12151-3:2014
ISO 12151-3:2010(E)
Table 1 — Letter symbols used in the designation of hose fittings
Connection end type Symbol
Style 2,5 MPa to 35 MPa L
(25 bar to 350 bar)
40 MPa (400 bar) S
Shape Straight S
45° elbow, short E45S
45° elbow, medium E45M
90° elbow, short ES
90° elbow, medium EM
Deprecated fitting angles 22,5° elbow, medium E22M
30° elbow, short E30S
30° elbow, medium E30M
60° elbow, short E60S
60° elbow, medium E60M
67,5° elbow, short E67S
67,5° elbow, medium E67M
6 Design
6.1 Hose fitting dimensions shown in Figures 2 to 8 shall conform to those given in Tables 2 to 8 and to the
relevant dimensions in ISO 6162-1 or ISO 6162-2.
6.2 Angular tolerances on axes of ends of elbows shall be ±3° for all sizes.
6.3 Details of contour shall be as chosen by the manufacturer, provided that the dimensions given in
Tables 2 to 8 are maintained.
7 Manufacture
7.1 Construction
Hose fittings may be made by forging or cold forming, machined from barstock or manufactured from multiple
components.
7.2 Workmanship
Workmanship shall conform to the best commercial practice to produce high quality hose fittings. Hose fittings
shall be free from visual contaminants, all hanging burrs, loose scale and slivers that can be dislodged in use,
and any other defects that can affect the functioning of the parts. All machined surfaces shall have a surface
roughness value of Ra u 6,3 µm, except where otherwise specified.
7.3 Finish
The external surface and threads of all carbon steel parts shall be plated or coated with a suitable material
that passes a 72 h neutral salt spray test in accordance with ISO 9227, unless otherwise agreed upon by the
© ISO 2010 – All rights reserved 3
---------------------- Page: 11 ----------------------
SIST ISO 12151-3:2014
ISO 12151-3:2010(E)
manufacturer and the user. Any appearance of red rust during the salt spray test on any area, except those
noted below, shall be conside
...
INTERNATIONAL ISO
STANDARD 12151-3
Second edition
2010-06-15
Connections for hydraulic fluid power
and general use — Hose fittings —
Part 3:
Hose fittings with ISO 6162-1 or
ISO 6162-2 flange ends
Raccordements pour transmissions hydrauliques et applications
générales — Raccords de flexible —
Partie 3: Raccords de flexible avec brides conformes à l'ISO 6162-1 ou
à l'ISO 6162-2
Reference number
ISO 12151-3:2010(E)
©
ISO 2010
---------------------- Page: 1 ----------------------
ISO 12151-3:2010(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
COPYRIGHT PROTECTED DOCUMENT
© ISO 2010
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2010 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 12151-3:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.2
3 Terms and definitions .2
4 Performance requirements.2
5 Designation of hose fittings .2
6 Design.3
7 Manufacture .3
8 Procurement information .4
9 Marking.4
10 Identification statement (reference to this part of ISO 12151) .4
Bibliography.12
© ISO 2010 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 12151-3:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 12151-3 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4,
Connectors and similar products and components.
This second edition cancels and replaces the first edition (ISO 12151-3:1999), which has been technically
revised.
ISO 12151 consists of the following parts, under the general title Connections for hydraulic fluid power and
general use — Hose fittings:
⎯ Part 1: Hose fittings with ISO 8434-3 O-ring face seal ends
⎯ Part 2: Hose fittings with ISO 8434-1 and 8434-4 24 degree cone connector ends with O-rings
⎯ Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends
⎯ Part 4: Hose fittings with ISO 6149 metric stud ends
⎯ Part 5: Hose fittings with ISO 8434-2 37 degree flared ends
⎯ Part 6: Hose fittings with ISO 8434-6 60 degree cone ends
iv © ISO 2010 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 12151-3:2010(E)
Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an
enclosed circuit. In general applications, the fluid can be conveyed under pressure.
Components are connected through their ports by stud ends on fluid conductor connectors to tubes/pipes or to
hose fittings and hoses.
© ISO 2010 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 12151-3:2010(E)
Connections for hydraulic fluid power and general use — Hose
fittings —
Part 3:
Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends
1 Scope
This part of ISO 12151 specifies the general and dimensional requirements for the design and performance of
flange hose fittings, made of carbon steel, for nominal hose inside diameters of 12,5 mm to 51 mm inclusive,
in accordance with ISO 4397, for use with ports and clamps in accordance with ISO 6162-1 and ISO 6162-2.
NOTE 1 Materials other than carbon steel can be supplied as agreed between the manufacturer and user.
NOTE 2 For hose fittings used in hydraulic and pneumatic braking systems on road vehicles (as defined in the scope of
ISO/TC 22/SC 2, Road vehicles), see ISO 4038, ISO 4039-1 and ISO 4039-2.
These hose fittings (see Figure 1 for a typical example) are for use in hydraulic fluid power systems with hose
that meets the requirements of the respective hose standards and in general applications with suitable hoses.
Key
1 hose fitting
2 port, flanged head and clamp per ISO 6162-1 or ISO 6162-2
3 O-ring seal
Figure 1 — Typical example of hose fitting connection with ISO 6162-1 or ISO 6162-2 flange end
© ISO 2010 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO 12151-3:2010(E)
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 4397, Fluid power systems and components — Connectors and associated components — Nominal
outside diameters of tubes and nominal inside diameters of hoses
ISO 5598, Fluid power systems and components — Vocabulary
ISO 6162-1, Hydraulic fluid power — Flange connectors with split or one-piece flange clamps and metric or
inch screws — Part 1: Flange connectors for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar),
DN 13 to DN 127
ISO 6162-2, Hydraulic fluid power — Flange connectors with split or one-piece flange clamps and metric or
inch screws — Part 2: Flange connectors for use at pressures of 35 MPa (350 bar) to 40 MPa (400 bar),
DN 13 to DN 51
ISO 6605, Hydraulic fluid power — Hoses and hose assemblies — Test methods
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 19879, Metallic tube connections for fluid power and general use — Test methods for hydraulic fluid
power connections
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5598 apply.
4 Performance requirements
4.1 Hose assemblies shall meet the performance requirements specified in the appropriate hose
specification without leakage or failure.
4.2 The working pressure of the hose assembly shall be the lower of the pressures given for its flange style
(pressure series) and size in ISO 6162-1 or ISO 6162-2, and in the relevant hose specification.
4.3 The hose-fitting portion of a hose assembly shall be tested in accordance with ISO 19879, and the
complete hose assembly shall be tested in accordance with ISO 6605.
5 Designation of hose fittings
5.1 Hose fittings shall be designated by an alphanumeric code to facilitate ordering. They shall be
designated by the words “Hose fitting”, followed by a space, followed by “ISO 12151-3”, followed by a spaced
hyphen, then the shape symbol (see 5.2), followed by another spaced hyphen, the style letter L for 2,5 MPa
to 35 MPa (25 bar to 350 bar) flanges or the style letter S for 40 MPa (400 bar) flanges in accordance with
ISO 6162-1 or ISO 6162-2, followed by the flange size from ISO 6162-1 or ISO 6162-2, a multiplication
symbol (×) and the hose size (nominal hose inside diameter in accordance with ISO 4397).
EXAMPLE A 45° elbow hose fitting, with a medium drop length (E45M) with a 40 MPa (400 bar) flanged head (S)
32 mm nominal flange size and 31,5 nominal ID hose, is designated as follows:
Hose fitting ISO 12151-3 - E45M - S32 × 31,5
5.2 The letter symbols as given in Table 1 shall be used.
2 © ISO 2010 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 12151-3:2010(E)
Table 1 — Letter symbols used in the designation of hose fittings
Connection end type Symbol
Style 2,5 MPa to 35 MPa L
(25 bar to 350 bar)
40 MPa (400 bar) S
Shape Straight S
45° elbow, short E45S
45° elbow, medium E45M
90° elbow, short ES
90° elbow, medium EM
Deprecated fitting angles 22,5° elbow, medium E22M
30° elbow, short E30S
30° elbow, medium E30M
60° elbow, short E60S
60° elbow, medium E60M
67,5° elbow, short E67S
67,5° elbow, medium E67M
6 Design
6.1 Hose fitting dimensions shown in Figures 2 to 8 shall conform to those given in Tables 2 to 8 and to the
relevant dimensions in ISO 6162-1 or ISO 6162-2.
6.2 Angular tolerances on axes of ends of elbows shall be ±3° for all sizes.
6.3 Details of contour shall be as chosen by the manufacturer, provided that the dimensions given in
Tables 2 to 8 are maintained.
7 Manufacture
7.1 Construction
Hose fittings may be made by forging or cold forming, machined from barstock or manufactured from multiple
components.
7.2 Workmanship
Workmanship shall conform to the best commercial practice to produce high quality hose fittings. Hose fittings
shall be free from visual contaminants, all hanging burrs, loose scale and slivers that can be dislodged in use,
and any other defects that can affect the functioning of the parts. All machined surfaces shall have a surface
roughness value of Ra u 6,3 µm, except where otherwise specified.
7.3 Finish
The external surface and threads of all carbon steel parts shall be plated or coated with a suitable material
that passes a 72 h neutral salt spray test in accordance with ISO 9227, unless otherwise agreed upon by the
© ISO 2010 – All rights reserved 3
---------------------- Page: 8 ----------------------
ISO 12151-3:2010(E)
manufacturer and the user. Any appearance of red rust during the salt spray test on any area, except those
noted below, shall be considered failure:
⎯ all internal fluid passages;
⎯ edges, such as hex points, serrations and crests of threads, where there can be mechanical deformation
of the plating or coating typical of mass-produced parts or shipping effects;
⎯ areas where there is mechanical deformation of the plating or coating caused by crimping, flaring,
bending and other post-plate metal forming operations;
⎯ areas where the parts are suspended or affixed in the test chamber where condensate can accumulate.
Internal fluid passages shall be protected from corrosion during storage.
NOTE Cadmium plating is deprecated due to environmental concerns. Changes in platin
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fluidna tehnika - Hidravlika - Spoji za hidravliko in za splošno uporabo - Cevne armature - 3. del: Cevne armature s prirobnicami po ISO 6162-1 ali ISO 6162-2Raccordements pour transmissions hydrauliques et applications générales - Raccords de flexible - Partie 3: Raccords de flexible avec brides conformes à l'ISO 6162-1 ou à l'ISO 6162-2Connections for hydraulic fluid power and general use - Hose fittings - Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends23.100.40Cevna napeljava in sklopkePiping and couplings23.040.70Gumene cevi in armatureHoses and hose assembliesICS:Ta slovenski standard je istoveten z:ISO 12151-3:2010oSIST ISO 12151-3:2014en,fr01-januar-2014oSIST ISO 12151-3:2014SLOVENSKI
STANDARD
oSIST ISO 12151-3:2014
Reference numberISO 12151-3:2010(E)© ISO 2010
INTERNATIONAL STANDARD ISO12151-3Second edition2010-06-15Connections for hydraulic fluid power and general use — Hose fittings — Part 3: Hose fittings with ISO 6162-1 or
ISO 6162-2 flange ends Raccordements pour transmissions hydrauliques et applications générales — Raccords de flexible — Partie 3: Raccords de flexible avec brides conformes à l'ISO 6162-1 ou à l'ISO 6162-2
oSIST ISO 12151-3:2014
ISO 12151-3:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
COPYRIGHT PROTECTED DOCUMENT
©
ISO 2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 • CH-1211 Geneva 20 Tel.
+ 41 22 749 01 11 Fax
+ 41 22 749 09 47 E-mail
copyright@iso.org Web
www.iso.org Published in Switzerland
ii
© ISO 2010 – All rights reserved
oSIST ISO 12151-3:2014
ISO 12151-3:2010(E) © ISO 2010 – All rights reserved
iii Contents Page Foreword.iv Introduction.v 1 Scope.1 2 Normative references.2 3 Terms and definitions.2 4 Performance requirements.2 5 Designation of hose fittings.2 6 Design.3 7 Manufacture.3 8 Procurement information.4 9 Marking.4 10 Identification statement (reference to this part of ISO 12151).4 Bibliography.12
oSIST ISO 12151-3:2014
ISO 12151-3:2010(E) iv
© ISO 2010 – All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 12151-3 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and components. This second edition cancels and replaces the first edition (ISO 12151-3:1999), which has been technically revised. ISO 12151 consists of the following parts, under the general title Connections for hydraulic fluid power and general use — Hose fittings: ⎯ Part 1: Hose fittings with ISO 8434-3 O-ring face seal ends ⎯ Part 2: Hose fittings with ISO 8434-1 and 8434-4 24 degree cone connector ends with O-rings ⎯ Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends ⎯ Part 4: Hose fittings with ISO 6149 metric stud ends ⎯ Part 5: Hose fittings with ISO 8434-2 37 degree flared ends ⎯ Part 6: Hose fittings with ISO 8434-6 60 degree cone ends
oSIST ISO 12151-3:2014
ISO 12151-3:2010(E) © ISO 2010 – All rights reserved
v Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circuit. In general applications, the fluid can be conveyed under pressure. Components are connected through their ports by stud ends on fluid conductor connectors to tubes/pipes or to hose fittings and hoses.
oSIST ISO 12151-3:2014
oSIST ISO 12151-3:2014
INTERNATIONAL STANDARD ISO 12151-3:2010(E) © ISO 2010 – All rights reserved
1 Connections for hydraulic fluid power and general use — Hose fittings — Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends 1 Scope This part of ISO 12151 specifies the general and dimensional requirements for the design and performance of flange hose fittings, made of carbon steel, for nominal hose inside diameters of 12,5 mm to 51 mm inclusive, in accordance with ISO 4397, for use with ports and clamps in accordance with ISO 6162-1 and ISO 6162-2. NOTE 1 Materials other than carbon steel can be supplied as agreed between the manufacturer and user. NOTE 2 For hose fittings used in hydraulic and pneumatic braking systems on road vehicles (as defined in the scope of ISO/TC 22/SC 2, Road vehicles), see ISO 4038, ISO 4039-1 and ISO 4039-2. These hose fittings (see Figure 1 for a typical example) are for use in hydraulic fluid power systems with hose that meets the requirements of the respective hose standards and in general applications with suitable hoses.
Key 1 hose fitting 2 port, flanged head and clamp per ISO 6162-1 or ISO 6162-2 3 O-ring seal Figure 1 — Typical example of hose fitting connection with ISO 6162-1 or ISO 6162-2 flange end oSIST ISO 12151-3:2014
ISO 12151-3:2010(E) 2
© ISO 2010 – All rights reserved 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4397, Fluid power systems and components — Connectors and associated components — Nominal outside diameters of tubes and nominal inside diameters of hoses ISO 5598, Fluid power systems and components — Vocabulary ISO 6162-1, Hydraulic fluid power — Flange connectors with split or one-piece flange clamps and metric or inch screws — Part 1: Flange connectors for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar), DN 13 to DN 127 ISO 6162-2, Hydraulic fluid power — Flange connectors with split or one-piece flange clamps and metric or inch screws — Part 2: Flange connectors for use at pressures of 35 MPa (350 bar) to 40 MPa (400 bar), DN 13 to DN 51 ISO 6605, Hydraulic fluid power — Hoses and hose assemblies — Test methods ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests ISO 19879, Metallic tube connections for fluid power and general use — Test methods for hydraulic fluid power connections 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. 4 Performance requirements 4.1 Hose assemblies shall meet the performance requirements specified in the appropriate hose specification without leakage or failure. 4.2 The working pressure of the hose assembly shall be the lower of the pressures given for its flange style (pressure series) and size in ISO 6162-1 or ISO 6162-2, and in the relevant hose specification. 4.3 The hose-fitting portion of a hose assembly shall be tested in accordance with ISO 19879, and the complete hose assembly shall be tested in accordance with ISO 6605. 5 Designation of hose fittings 5.1 Hose fittings shall be designated by an alphanumeric code to facilitate ordering. They shall be designated by the words “Hose fitting”, followed by a space, followed by “ISO 12151-3”, followed by a spaced hyphen, then the shape symbol (see 5.2), followed by another spaced hyphen, the style letter L for 2,5 MPa to 35 MPa (25 bar to 350 bar) flanges or the style letter S for 40 MPa (400 bar) flanges in accordance with ISO 6162-1 or ISO 6162-2, followed by the flange size from ISO 6162-1 or ISO 6162-2, a multiplication symbol (×) and the hose size (nominal hose inside diameter in accordance with ISO 4397). EXAMPLE A 45° elbow hose fitting, with a medium drop length (E45M) with a 40 MPa (400 bar) flanged head (S) 32 mm nominal flange size and 31,5 nominal ID hose, is designated as follows: Hose fitting ISO 12151-3 - E45M - S32 × 31,5 5.2 The letter symbols as given in Table 1 shall be used. oSIST ISO 12151-3:2014
ISO 12151-3:2010(E) © ISO 2010 – All rights reserved
3 Table 1 — Letter symbols used in the designation of hose fittings Connection end type Symbol 2,5 MPa to 35 MPa (25 bar to 350 bar) L Style 40 MPa (400 bar) S Straight S 45° elbow, short E45S 45° elbow, medium E45M 90° elbow, short ES Shape 90° elbow, medium EM 22,5° elbow, medium E22M 30° elbow, short E30S 30° elbow, medium E30M 60° elbow, short E60S 60° elbow, medium E60M 67,5° elbow, short E67S Deprecated fitting angles 67,5° elbow, medium E67M
6 Design 6.1 Hose fitting dimensions shown in Figures 2 to 8 shall conform to those given in Tables 2 to 8 and to the relevant dimensions in ISO 6162-1 or ISO 6162-2. 6.2 Angular tolerances on axes of ends of elbows shall be ±3° for all sizes. 6.3 Details of contour shall be as chosen by the manufacturer, provided that the dimensions given in Tables 2 to 8 are maintained. 7 Manufacture 7.1 Construction Hose fittings may be made by forging or cold forming, machined from barstock or manufactured from multiple components. 7.2 Workmanship Workmanship shall conform to the best commercial practice to produce high quality hose fittings. Hose fittings shall be free from visual contaminants, all hanging burrs, loose scale and slivers that can be dislodged in use, and any other defects that can affect the functioning of the parts. All machined surfaces shall have a surface roughness value of Ra u 6,3 µm, except where otherwise specified. 7.3 Finish The external surface and threads of all carbon steel parts shall be plated or coated with a suitable material that passes a 72 h neutral salt spray test in accordance with ISO 9227, unless otherwise agreed upon by the oSIST ISO 12151-3:2014
ISO 12151-3:2010(E) 4
© ISO 2010 – All rights reserved manufacturer and the user. Any appearance of red rust during the salt
...
NORME ISO
INTERNATIONALE 12151-3
Deuxième édition
2010-06-15
Raccordements pour transmissions
hydrauliques et applications générales —
Raccords de flexible —
Partie 3:
Raccords de flexible avec brides
conformes à l'ISO 6162-1 ou à
l'ISO 6162-2
Connections for hydraulic fluid power and general use — Hose
fittings —
Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends
Numéro de référence
ISO 12151-3:2010(F)
©
ISO 2010
---------------------- Page: 1 ----------------------
ISO 12151-3:2010(F)
PDF – Exonération de responsabilité
Le présent fichier PDF peut contenir des polices de caractères intégrées. Conformément aux conditions de licence d'Adobe, ce fichier
peut être imprimé ou visualisé, mais ne doit pas être modifié à moins que l'ordinateur employé à cet effet ne bénéficie d'une licence
autorisant l'utilisation de ces polices et que celles-ci y soient installées. Lors du téléchargement de ce fichier, les parties concernées
acceptent de fait la responsabilité de ne pas enfreindre les conditions de licence d'Adobe. Le Secrétariat central de l'ISO décline toute
responsabilité en la matière.
Adobe est une marque déposée d'Adobe Systems Incorporated.
Les détails relatifs aux produits logiciels utilisés pour la création du présent fichier PDF sont disponibles dans la rubrique General Info
du fichier; les paramètres de création PDF ont été optimisés pour l'impression. Toutes les mesures ont été prises pour garantir
l'exploitation de ce fichier par les comités membres de l'ISO. Dans le cas peu probable où surviendrait un problème d'utilisation,
veuillez en informer le Secrétariat central à l'adresse donnée ci-dessous.
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2010
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publication ne peut être reproduite ni utilisée sous
quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit
de l'ISO à l'adresse ci-après ou du comité membre de l'ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Publié en Suisse
ii © ISO 2010 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 12151-3:2010(F)
Sommaire
Avant-propos .iv
Introduction.v
1 Domaine d'application .1
2 Références normatives.2
3 Termes et définitions .2
4 Exigences relatives aux performances.2
5 Désignation des flexibles de raccordement .2
6 Conception.3
7 Fabrication .3
8 Informations à fournir par l'acheteur .4
9 Marquage.4
10 Phrase d'identification (référence à la présente partie de l'ISO 12151) .5
Bibliographie.12
© ISO 2010 – Tous droits réservés iii
---------------------- Page: 3 ----------------------
ISO 12151-3:2010(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de
normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée
aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du
comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d'élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété et averti de leur existence.
L'ISO 12151-3 a été élaborée par le comité technique ISO/TC 131, Transmissions hydrauliques et
pneumatiques, sous-comité SC 4, Raccords, produits similaires et leurs composants.
Cette deuxième édition annule et remplace la première édition (ISO 12151-3:1999), qui a fait l'objet d'une
révision technique.
L'ISO 12151 comprend les parties suivantes, présentées sous le titre général Raccordements pour
transmissions hydrauliques et applications générales — Raccords de flexible:
⎯ Partie 1: Raccords de flexible avec embouts à joints faciaux toriques ISO 8434-3
⎯ Partie 2: Raccords de flexible avec embouts à cône à 24 degrés et joints toriques ISO 8434-1 et à
ISO 8434-4
⎯ Partie 3: Raccords de flexible avec bride conformes à l’ISO 6162-1 ou à l’ISO 6162-2
⎯ Partie 4: Raccords de flexible avec éléments mâles métriques ISO 6149
⎯ Partie 5: Raccords de flexible avec embouts évasés à 37 degrés conformes à l’ISO 8434-2
⎯ Partie 6: Raccords de flexible avec embouts à cône à 60 degrés conformes à l’ISO 8434-6
iv © ISO 2010 – Tous droits réservés
---------------------- Page: 4 ----------------------
ISO 12151-3:2010(F)
Introduction
Dans les systèmes de transmissions hydrauliques, l'énergie est transmise et commandée par l'intermédiaire
d'un liquide sous pression circulant en circuit fermé. Dans les applications générales, le fluide peut être
véhiculé sous pression.
Les composants sont raccordés par leurs orifices au moyen d'éléments mâles fixés sur les raccords de tube
ou de tuyauterie ou sur les raccords de flexibles et tuyaux.
© ISO 2010 – Tous droits réservés v
---------------------- Page: 5 ----------------------
NORME INTERNATIONALE ISO 12151-3:2010(F)
Raccordements pour transmissions hydrauliques et
applications générales — Raccords de flexible —
Partie 3:
Raccords de flexible avec brides conformes à l'ISO 6162-1 ou à
l'ISO 6162-2
1 Domaine d'application
La présente partie de l'ISO 12151 spécifie les exigences générales et dimensionnelles pour la conception et
les performances des raccords de flexible à bride, en acier au carbone, dont le diamètre intérieur nominal est
compris entre 12,5 mm et 51 mm inclus en conformité avec l'ISO 4397, pour utilisation avec des orifices et
des manchons conformes à l'ISO 6162-1 et à l'ISO 6162-2.
NOTE 1 D'autres matériaux peuvent être utilisés après accord entre le fabricant et l'utilisateur.
NOTE 2 Pour les raccords de flexible utilisés dans les systèmes de freinage hydrauliques et pneumatiques sur les
véhicules routiers (tels que définis dans le domaine d'application de l'ISO/TC 22/SC 2 Véhicules routiers), voir l'ISO 4038,
l'ISO 4039-1 et l'ISO 4039-2.
Ces raccords de flexible (voir la Figure 1 pour un exemple type) sont destinés à être utilisés dans les
systèmes de transmissions hydrauliques avec des tuyaux qui répondent aux exigences des normes de tuyaux
respectives, et dans des applications générales lorsqu'il s'agit de tuyaux adaptés.
Légende
1 raccord de flexible
2 orifice, collet et manchons conformes à l'ISO 6162-1 et à l'ISO 6162-2
3 joint torique
Figure 1 — Exemple type de connexion de raccord de flexible avec bride
conforme à l'ISO 6162-1 et l'ISO 6162-2
© ISO 2010 – Tous droits réservés 1
---------------------- Page: 6 ----------------------
ISO 12151-3:2010(F)
2 Références normatives
Les documents de référence suivants sont indispensables pour l'application du présent document. Pour les
références datées, seule l'édition citée s'applique. Pour les références non datées, la dernière édition du
document de référence s'applique (y compris les éventuels amendements).
ISO 4397, Transmissions hydrauliques et pneumatiques — Raccords et éléments associés — Diamètres
extérieurs nominaux des tubes et diamètres intérieurs nominaux des tuyaux flexibles
ISO 5598, Transmissions hydrauliques et pneumatiques — Vocabulaire
ISO 6162-1, Transmissions hydrauliques — Raccordements à bride avec demi-brides ou bride monobloc et
vis métriques ou en inches — Partie 1: Raccordements à bride pour utilisation à des pressions de 3,5 MPa
(35 bar) à 35 MPa (350 bar), DN 13 à DN 127
ISO 6162-2, Transmissions hydrauliques — Raccordements à bride avec demi-brides ou bride monobloc et
vis métriques ou en inches — Partie 2: Raccordements à bride pour utilisation à des pressions de 35 MPa
(350 bar) à 40 MPa (400 bar), DN 13 à DN 51
ISO 6605, Transmissions hydrauliques — Tuyaux et ensembles flexibles — Méthodes d'essai
ISO 9227, Essais de corrosion en atmosphères artificielles — Essais aux brouillards salins
ISO 19879, Raccords de tubes métalliques pour transmissions hydrauliques et pneumatiques et applications
générales — Méthodes d'essai pour raccords pour transmissions hydrauliques
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions donnés dans l'ISO 5598 s'appliquent.
4 Exigences relatives aux performances
4.1 Les raccords de flexible assemblés doivent satisfaire aux exigences de performances fixées dans la
spécification pertinente pour les tuyaux, sans présenter de fuite ou de rupture.
4.2 La pression de fonctionnement des assemblages flexibles doit être la plus basse des pressions
données pour leur type de bride (séries de pression) et leur taille dans l'ISO 6162-1 ou l'ISO 6162-2 et dans la
spécification pertinente pour les tuyaux.
4.3 La portion sélectionnée des raccords de flexible assemblés doit faire l'objet d'essais conformément à
l'ISO 19879, et l'ensemble des assemblages flexibles doit faire l'objet d'essais conformément à l'ISO 6605.
5 Désignation des raccords de flexible
5.1 Les raccords de flexible doivent être désignés par un code alphanumérique pour faciliter la commande.
Ils doivent être désignés par la mention «Raccords de flexible», suivie de «ISO 12151-3», suivi d'un trait
d'union espacé, puis du symbole du corps du raccord de flexible (voir 5.2), suivi d'un autre trait d'union
espacé, la lettre L pour des brides de 2,5 MPa à 35 MPa (25 bar à 350 bar) ou la lettre S pour des brides de
40 MPa (400 bar) conformément à l'ISO 6162-1 ou l'ISO 6162-2 puis de la dimension de la bride indiquée
dans l'ISO 6162-1 ou l'ISO 6162-2, un signe de multiplication (×) et de la taille du tuyau flexible (diamètre
intérieur nominal conforme à l'ISO 4397).
EXEMPLE Un raccord de flexible avec un coude moyen à 45° (E45M) avec un collet (S) 40 MPa (400 bar) pour une
taille nominale de bride de 32 mm et un tuyau flexible d'un diamètre nominal intérieur de 31,5 mm, est désigné comme
suit:
Raccord de flexible ISO 12151-3 - E45M - S32 × 31,5
2 © ISO 2010 – Tous droits réservés
---------------------- Page: 7 ----------------------
ISO 12151-3:2010(F)
5.2 Les symboles littéraux donnés dans le Tableau 1 doivent être utilisés.
Tableau 1 — Symboles littéraux utilisés pour la désignation des raccords de flexible
Type d'extrémité de raccordement Symbole
Style 2,5 MPa à 35 MPa L
(25 bar à 350 bar)
40 MPa (400 bar) S
Forme Droit S
Coude à 45°, court E45S
Coude à 45°, moyen E45M
Coude à 90°, court ES
Coude à 90°, moyen EM
Angles de raccordement Coude à 22,5°, moyen E22M
déconseillés
Coude à 30°, court E30S
Coude à 30°, moyen E30M
Coude à 60°, court E60S
Coude à 60°, moyen E60M
Coude à 67,5°, court E67S
Coude à 67,5°, moyen E67M
6 Conception
6.1 Les dimensions des raccords de flexible représentés aux Figures 2 à 8 doivent être conformes à celles
données dans les Tableaux 2 à 8 et aux dimensions pertinentes de l'ISO 6162-1 ou de l’ISO 6162-2.
6.2 La tolérance angulaire sur l'axe des extrémités des coudes doit être de ±3° pour toutes les dimensions.
6.3 Les détails du contour doivent être laissés au choix du fabricant, dans la mesure où les dimensions
données dans les Tableaux 2 à 8 sont respectées.
7 Fabrication
7.1 Construction
Les raccords de flexible peuvent être forgés ou façonnés à froid, usinés à partir d'acier laminé ou fabriqués à
partir d'éléments multiples.
7.2 Qualité d'exécution
La qualité d'exécution doit être conforme aux meilleures pratiques commerciales pour donner des raccords de
flexible de haute qualité. Les raccords de flexible doivent être exempts de tout contaminant visuel, de toute
bavure, écaille et éclat qui pourraient se détacher lors de l'utilisation et de tout autre défaut qui pourrait altérer
la fonction des pièces. Toutes les surfaces usinées doivent avoir, sauf indication contraire, une rugosité de
surface Ra u 6,3 µm.
© ISO 2010 – Tous droits réservés 3
---------------------- Page: 8 ----------------------
ISO 12151-3:2010(F)
7.3 Finition
La surface extérieure et les filetages de toutes les parties en acier au carbone doivent être plaquées ou
revêtues d'un matériau capable de résister à un essai au brouillard salin pendant 72 h conformément à
l'ISO 9227, sauf accord contraire entre le fabricant et l'utilisateur. Toute apparition de rouille rouge pendant
l'essai au brouillard salin dans n'importe quelle zone, excepté celles notées ci-dessous, doit être considérée
comme une défaillance:
⎯ tous les passages de fluide internes;
⎯ arêtes, telles que pointes des six pans, dentelures et crêtes de filetages, où il peut y avoir une
déformation mécanique du placage ou du revêtement typique de pièces fabriquées en série ou effets
d'expédition;
⎯ zones où il y a une déformation mécanique du revêtement ou du placage causée par sertissage,
évasement, courbure et autres opérations de travail des métaux après placage;
⎯ zones où les pièces sont suspendues ou fixées dans la chambre d'essai où de la condensation peut
s'accumuler.
Les passages de fluide doivent être protégés contre la rouille pendant le stockage.
NOTE Le placage cadmium est déconseillé pour des raisons environnem
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.