SIST ISO 4399:2021

Fluid power systems and components -- Connectors and associated components -- Nominal pressures

This document specifies a selection of nominal pressures for hydraulic and pneumatic fluid power connectors and associated components.
NOTE There can be a need to provide a selection of nominal pressures for connectors and associated components used in applications where the external pressure on the components is greater than the internal pressure, for example vacuum service. A document that deals with this subject will be established in due course.

Transmissions hydrauliques et pneumatiques -- Raccords et composants associés -- Pressions nominales

Fluidna tehnika - Priključki in pripadajoče komponente - Nazivni tlaki

General Information

• Status: Published
• Publication Date: 09-Jun-2021
• ICS: 23.100.40 - Piping and couplings
• Technical Committee: IHPV - Hydraulics and pneumatics
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-2021
• Due Date: 06-Aug-2021
• Completion Date: 10-Jun-2021
• Ref Project: ISO 4399:2019 - Fluid power systems and components — Connectors and associated components — Nominal pressures

Relations

• Replaces: SIST ISO 4399:1995 - Fluid power systems and components -- Connectors and associated components -- Nominal pressures
• Effective Date: 01-Jul-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ISO 4399:2021
01-julij-2021
Nadomešča:
SIST ISO 4399:1995
Fluidna tehnika - Priključki in pripadajoče komponente - Nazivni tlaki
Fluid power systems and components -- Connectors and associated components --
Nominal pressures
Transmissions hydrauliques et pneumatiques -- Raccords et composants associés --
Pressions nominales
Ta slovenski standard je istoveten z: ISO 4399:2019
ICS:
23.100.40 Cevna napeljava in sklopke Piping and couplings
SIST ISO 4399:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 4399:2021

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SIST ISO 4399:2021
INTERNATIONAL ISO
STANDARD 4399
Third edition
2019-07
Fluid power systems and
components — Connectors and
associated components — Nominal
pressures
Transmissions hydrauliques et pneumatiques — Raccords et
composants associés — Pressions nominales
Reference number
ISO 4399:2019(E)
©
ISO 2019

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SIST ISO 4399:2021
ISO 4399:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

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SIST ISO 4399:2021
ISO 4399:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Units . 1
5 Nominal pressures . 2
6 Identification statement (Reference to this document) . 2
© ISO 2019 – All rights reserved iii

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SIST ISO 4399:2021
ISO 4399:2019(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
...

INTERNATIONAL ISO
STANDARD 4399
Third edition
2019-07
Fluid power systems and
components — Connectors and
associated components — Nominal
pressures
Transmissions hydrauliques et pneumatiques — Raccords et
composants associés — Pressions nominales
Reference number
ISO 4399:2019(E)
©
ISO 2019

---------------------- Page: 1 ----------------------
ISO 4399:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 4399:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Units . 1
5 Nominal pressures . 2
6 Identification statement (Reference to this document) . 2
© ISO 2019 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 4399:2019(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 t
...