ISO 7181:1982

Hydraulic fluid power — Cylinders — Bore and rod area ratios

Transmissions hydrauliques — Vérins — Rapports entre surfaces d'alésage et de tige

General Information

• Status: Withdrawn
• Publication Date: 31-Oct-1982
• Withdrawal Date: 31-Oct-1982
• ICS: 23.100.20 - Cylinders
• Technical Committee: ISO/TC 131/SC 3 - Cylinders
• Drafting Committee: ISO/TC 131/SC 3 - Cylinders
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 01-Oct-1991

Relations

• Revised: SIST ISO 7181:1997 - Hydraulic fluid power -- Cylinders -- Bore and rod area ratios
• Effective Date: 12-May-2008
• Revised: ISO 7181:1991 - Hydraulic fluid power — Cylinders — Bore and rod area ratios
• Effective Date: 15-Apr-2008

Standards Content (Sample)

International Standard @ 718
INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONOMEmnYHAPOAHAfl OPrAHHBAUMfl il0 CTAHAAPTH3AUHH.ORGANISATlON INTERNATIONALE DE NORMALISATION
Hydraulic fluid power - Cylinders - Bore and rod
area ratios
Transmissions hydrauliques - Vérins - Rapports entre surfaces d‘alésage et de tige
First edition - 1982-11-01
UDC 621.226 Ref. No. IS0 7181-1982 (E)
Descriptors : fluid power, hydraulic fluid power, hydraulic cylinders, bores, piston-rods, dimensions.
Price based on 3 pages

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Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards institutes (IS0 member bodies). The work of developing Inter-
national Standards is carried out through IS0 technical committees. Every member
body interested in a subject for which a technical committee has been set up 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council.
International Standard IS0 7181 was developed by Technical Committee ISO/TC 131,
Fluid power systems, and was circulated to the member bodies in June 1981.
:
It has been approved by the member bodies of the following countries
Australia France South Africa, Rep. of
Austria
Germany, F.R. Spain
Belgium Hungary Sweden
Brazil
Japan Switzerland
China Netherlands United Kingdom
Czechoslovakia Noway USA
Egypt, Arab Rep. of Poland USSR
Finland
Romania
No member body expressed disapproval of the document,
O International Organization for Standardization, 1982 O
Printed in Switzerland

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INTERNATIONAL STANDARD IS0 7181-1982 (E)
Hydraulic fluid power - Cylinders - Bore and rod
area ratios
O Introduction NOTES
1 For each pair of diameters (D, d) there is a corresponding ratio v,
In hydraulic fluid power systems, power is transmitted and
between the useful areas A, and A,.
controlled through a liquid under pressure within an enclosed
circuit.
One component of such systems is the fluid power cylinder.
2 The table gives, for guidance, for each value of D those standard
This is a device which converts power into linear mechanical
values of d that give ratios cp approximately equal to one of the follow-
force and motion. It consists of a movable element, i.e. a piston
ing preferred numbers :
and piston rod, operating within a cylindrical bore.
1,06 - 1,12 - 1,25 - 1.4 - 1,6 - 2 - 2.5 - 5
3 Moreover, for each pair (D, d) the table gives calculated values of
A, and A, and the corresponding effective value of p.
1 Scope and field of applicat
...