SIST ISO 7790:1998

Hydraulic fluid power -- Four-port modular stack valves and four-port directional control valves, sizes 02, 03 and 05 -- Clamping dimensions

Transmissions hydrauliques -- Appareils empilables et distributeurs à quatre orifices, de tailles 02, 03 et 05 -- Dimensions de montage

La présente Norme internationale prescrit les dimensions de montage des appareils empilables et des distributeurs à quatre orifices, de tailles 02, 03 et 05, sur plans de pose. Les dimensions et les tailles sont conformes à l'ISO 4401 afin d'assurer l'interchangeabilité de ces appareils et de réduire le nombre de modes de fixation à utiliser. Elle est applicable aux dimensions de montage courantes des appareils empilables et distributeurs à quatre orifices, dimensions qui sont généralement applicables aux équipements industriels.

Fluidna tehnika - Hidravlika - Modulni štiripotni krmilni ventili za veriženje z velikostjo 02, 03 in 05 - Vgradne mere

General Information

• Status: Withdrawn
• Publication Date: 30-Nov-1998
• Withdrawal Date: 17-Dec-2013
• ICS: 23.100.50 - Control components
• Technical Committee: IHPV - Hydraulics and pneumatics
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 16-Dec-2013
• Due Date: 08-Jan-2014
• Completion Date: 18-Dec-2013
• Ref Project: ISO 7790:1997 - Hydraulic fluid power — Four-port modular stack valves and four-port directional control valves, sizes 02, 03 and 05 — Clamping dimensions

Relations

• Revised: ISO 7790:1986 - Hydraulic fluid power — Four-port modular stack valves and four-port directional control valves, sizes 03 and 05 — Clamping dimensions
• Effective Date: 12-May-2008

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 7790
Second edition
1997-12-15
Hydraulic fluid power — Four-port modular
stack valves and four-port directional
control valves, sizes 02, 03 and 05 —
Clamping dimensions
Transmissions hydrauliques — Appareils empilables et distributeurs à
quatre orifices, de tailles 02, 03 et 05 — Dimensions de montage
A
Reference number
ISO 7790:1997(E)

---------------------- Page: 1 ----------------------
ISO 7790:1997(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.
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.
International Standard ISO 7790 was prepared by Technical Committee
ISO/TC 131, Fluid power systems, Subcommittee SC 5, Control products
and components.
This second edition cancels and replaces the first edition (ISO 7790:1986),
of which it constitutes a technical revision.
Annex A of this International Standard is for information only.
©  ISO 1997
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 the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet [e-mail]
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii

---------------------- Page: 2 ----------------------
©
ISO ISO 7790:1997(E)
Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure
within an enclosed circuit. Typical components found in such systems are hydraulic valves and hydraulic
modular stack valves. These devices control flow direction, pressure or flow rate of liquids in the
enclosed circuit.
iii

---------------------- Page: 3 ----------------------
©
INTERNATIONAL STANDARD  ISO ISO 7790:1997(E)
Hydraulic fluid power — Four-port modular stack valves and
four-port directional control valves, sizes 02, 03 and 05 —
Clamping dimensions
1 Scope
This International Standard specifies clamping dimensions of four-port modular stack valves and four-
port directional control valves, sizes 02, 03 and 05, on mounting surfaces. The dimensions and sizes
conform to ISO 4401 so as to ensure interchangeability of these valves and to reduce the number of
fixing devices to be used.
It applies to clamping dimensions of four-port modular stack valves and four-port directional control
valves which represent current practice. They are generally applicable to industrial equipment.
2 Normative references
The following standards contain provisions which, through reference of this text, constitute provisons of
this International Standard. At the time of publication, the editions indicated were valid. All standards are
subject to revision, and parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the standards indicated below.
Members of IEC and ISO maintain registers of currently valid International Standards.
ISO 4401:1994, Hydraulic fluid power — Four-port directional control valves — Mounting surfaces.
ISO 5598:1985, Fluid power systems and components — Vocabulary.
ISO 5783:1995, Hydraulic fluid power
...

SLOVENSKI STANDARD
SIST ISO 7790:1998
01-december-1998
Fluidna tehnika - Hidravlika - Modulni štiripotni krmilni ventili za veriženje z
velikostjo 02, 03 in 05 - Vgradne mere
Hydraulic fluid power -- Four-port modular stack valves and four-port directional control
valves, sizes 02, 03 and 05 -- Clamping dimensions
Transmissions hydrauliques -- Appareils empilables et distributeurs à quatre orifices, de
tailles 02, 03 et 05 -- Dimensions de montage
Ta slovenski standard je istoveten z: ISO 7790:1997
ICS:
23.100.50 Krmilni sestavni deli Control components
SIST ISO 7790:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 7790:1998

---------------------- Page: 2 ----------------------

SIST ISO 7790:1998
INTERNATIONAL ISO
STANDARD 7790
Second edition
1997-12-15
Hydraulic fluid power — Four-port modular
stack valves and four-port directional
control valves, sizes 02, 03 and 05 —
Clamping dimensions
Transmissions hydrauliques — Appareils empilables et distributeurs à
quatre orifices, de tailles 02, 03 et 05 — Dimensions de montage
A
Reference number
ISO 7790:1997(E)

---------------------- Page: 3 ----------------------

SIST ISO 7790:1998
ISO 7790:1997(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.
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.
International Standard ISO 7790 was prepared by Technical Committee
ISO/TC 131, Fluid power systems, Subcommittee SC 5, Control products
and components.
This second edition cancels and replaces the first edition (ISO 7790:1986),
of which it constitutes a technical revision.
Annex A of this International Standard is for information only.
©  ISO 1997
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 the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet [e-mail]
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii

---------------------- Page: 4 ----------------------

SIST ISO 7790:1998
©
ISO ISO 7790:1997(E)
Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure
within an enclosed circuit. Typical components found in such systems are hydraulic valves and hydraulic
modular stack valves. These devices control flow direction, pressure or flow rate of liquids in the
enclosed circuit.
iii

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SIST ISO 7790:1998

---------------------- Page: 6 ----------------------

SIST ISO 7790:1998
©
INTERNATIONAL STANDARD  ISO ISO 7790:1997(E)
Hydraulic fluid power — Four-port modular stack valves and
four-port directional control valves, sizes 02, 03 and 05 —
Clamping dimensions
1 Scope
This International Standard specifies clamping dimensions of four-port modular stack valves and four-
port directional control valves, sizes 02, 03 and 05, on mounting surfaces. The dimensions and sizes
conform to ISO 4401 so as to ensure interchangeability of these valves and to reduce the number of
fixing devices to be used.
It applies to clamping dimensions of four-port modular stack valves and four-port directional control
valves which represent current practice. They are generally applicable to industrial equipment.
2 Normative references
The following standards contain provisions which, through reference of this text, constitut
...

NORME ISO
INTERNATIONALE 7790
Deuxième édition
1997-12-15
Transmissions hydrauliques — Appareils
empilables et distributeurs à quatre
orifices, de tailles 02, 03 et 05 —
Dimensions de montage
Hydraulic fluid power — Four-port modular stack valves and four-port
directional control valves, sizes 02, 03 and 05 — Clamping dimensions
A
Numéro de référence
ISO 7790:1997(F)

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ISO 7790:1997(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 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.
La Norme internationale ISO 7790 a été élaborée par le comité technique ISO/TC 131, Transmissions
hydrauliques et pneumatiques, sous-comité SC 5, Appareils de régulation et de distribution et leurs
composants.
Cette deuxième édition annule et remplace la première édition (ISO 7790:1986), dont elle constitue une
révision technique.
L'annexe A de la présente Norme internationale est donnée uniquement à titre d'information.
©  ISO 1997
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'éditeur.
Organisation internationale de normalisation
Case postale 56 • CH-1211 Genève 20 • Suisse
Internet [e-mail]
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Imprimé en Suisse
ii

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©
ISO ISO 7790:1997(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. Les distributeurs hydrauliques et les
appareils empilables sont des composants typiques de ces systèmes. Ces dispositifs commandent le
sens d'écoulement, la pression ou le débit des liquides dans le circuit fermé.
iii

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©
NORME INTERNATIONALE  ISO ISO 7790:1997(F)
Transmissions hydrauliques — Appareils empilables et
distributeurs à quatre orifices, de tailles 02, 03 et 05 —
Dimensions de montage
1 Domaine d'application
La présente Norme internationale prescrit les dimensions de montage des appareils empilables et des
distributeurs à quatre orifices, de tailles 02, 03 et 05, sur plans de pose. Les dimensions et les tailles
sont conformes à l'ISO 4401 afin d'assurer l'interchangeabilité de ces appareils et de réduire le nombre
de modes de fixation à utiliser.
Elle est applicable aux dimensions de montage courantes des appareils empilables et distributeurs à
quatre orifices, dimensions qui sont généralement applicables aux équipements industriels.
2 Références normatives
Les normes suivantes contiennent des dispositions qui, par suite de la référence qui en est faite,
constituent des dispositions valables pour la présente Norme internationale. Au moment de la
publication, les éditions indiquées étaient en vigueur. Toute norme est sujette à révision et les parties
prenantes des accords fondés sur la présente Norme internationale sont invitées à rechercher la
possibilité d'appliquer les éditions les plus récentes des normes indiquées ci-après. Les membres de la
CEI et de l'ISO possèdent le registre des Normes internationales en vigueur à un moment donné.
ISO 4401:1994, Transmissions hydrauliques — Distributeurs à quatre orifices — Plan de pose.
ISO 5598:1985, Transmissions hydrauliques et pneumatiques — Vocabulaire.
ISO 5783:1995, Transmission
...