इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 8208 (2004): Fluid power systems and components - Cylinder bores and piston rod diameters - Metric series [PGD 16: Fluid Power] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 8208:2004 ISO 3320:1987 Indian Standard FLUID POWER SYSTEMS AND COMPONENTS — CYLINDER BORES AND PISTON ROD DIAMETERS — METRIC SERIES ( First Revision) ICS 23.100.20 @ BIS 2004 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 December 2004 Price Group 1 Basic Fluid Power Sectional Committee, MGP 14 NATIONAL FOREWORD This Indian Standard (First Revision )which is identical with ISO 3320:1987 ‘Fluid power systems and components — Cylinder bores and piston rod diameters — Metric series’ issued by the International Organization for Standardization (ISO )was adopted bythe Bureau of Indian Standards onthe recommendations of the Basic Fluid Power Sectional Committee and approval of the Medical Instruments, General and Production Engineering Division Council. This Indian Standard was first published in 1976 and conformed to ISO 3320:1975 ‘Fluid power systems and components — Cylinder bores and piston rod diameters — Metric series’. ISO 3320 has since been revised to ISO 3320: 1987. In order to align with the international practices, the sectional committee dealing with the subject decided to adopt ISO 3320:1987 as Indian Standard. The text of the ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following: a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’. b) Comma ( , ) has been used as a decimal marker in the International Standard, while in Indian Standards, the current practice is to use a point ( .) as the decimal marker. CROSS REFERENCE In the adopted standard, reference appears to the following International Standard for which Indian Standard also exists. The corresponding Indian Standard which is to be substituted in its place is listed below along with its degree of equivalence for the edition indicated: International Standard Correspondhg Indian Standard Degree of Equivalence ISO 5598 : 1985 Fluid p ower IS 10416 : 1992 Fluid power Identical systems and components — systems and components — Vocabulary Vocabulary ( first revision) IS 8208:2004 ISO 3320:1987 Indian Standard FLUID POWER SYSTEMS AND COMPONENTS — CYLINDER BORES AND PISTON ROD DIAMETERS — METRIC SERIES ( First Revision) O Introduction 3.2 cylinder bore: The internaldiameter of the cylinder. In fluid power systems, power is transmitted and controlled 3.3 pistonrod: The element transmitting mechanical force through a fluid (liquid or gas) under pressure within an and motion from the piston. enclosed circuit. One component of such systems is the fluid power cylinder. This is a device which converts power into linear mechanical 4 Dimensions force and motion. Itconsists of amovable element, i.e. apiston and piston rod, operating within a cylindrical bore. Bore and rod dimensions are illustrated and identified in the figure. Cylinder bores and piston rod diameters shall be selected from 1 Scope and field of application the dimensions given in tables 1 and 2. This International Standard establishes a metric series of cylinder bores and piston rod diameters for application to hydraulic and pneumatic fluid power cylinders. This International Standard only applies to th e dimensional criteria of products manufactured inconformity with this inter- national Standard; it does not apply to their functional characteristics. 2 Reference ISO 5598, Fluid power systems and components – Vocabulary. 3 Definitions AL = cylinderbore For the purposes of this International Standard, the definitions MM = pistonroddiameter given in ISO 5598 and the following definitions apply. NOTE – Letter codes asspecified in ISO 6099. 3.1 cylinder: Adevice which converts fluid power into linear mechanical force and motion. Figure– Identificationof boreandrod dimensions IS 8208:2004 ISO 3320:1987 Tablel – Cylinderboresl) Dimensionsinmillimetrea 8 10 12 16 20 25 32 40 50 63 80 (80) 100” (110) I AL 125 (140) 160 (160) 200 (220) 260 (260) 320 (360) 400 (450) m 1) An extension upwards ofthe diameter ranges may, ifrequired, bemade using the series of preferred numbers: R 10for diameters AL < 1W mm and R20for diametersAL > 100mm. Values in parentheses are non-preferred values and snould be used only for special applications. Table2– Pistonroddiameters1) Dimenaionainmillimetres 4 5 6 8 10 12 14 16 18 20 22 25 MM 28 32 36 40 45 50 66 63 70 80 80 100 110 125 140 160 180 m 220 250 280 320 360 1) An extension upwards of the diameter rangea may, if required, be made using the R20 series of preferred numbers. 5 Identification statement (Reference to this International Standard) Use the following statement intest reports, catalogues and sales literature when electing to comply with this International Standard: “Cylinder bores and piston rod diameters selected inaccordance with ISO 3320, Fluidpoww systems and components – Cyfinder bores and piston rod diametets – Metric series.” Bibliography The follow”ng International Standard is referred to in this International Standard for information pu~oaee only: ISO 6089, Fluid power systems and components – Cylinders – Identification code for mounting diwnwbns and mounting types. 2 Bureau of Indian Standards BIS is astatutory institution established under the Bureau of/ndian StandardsAct, 1986to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications maybe reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publications), BIS. Review of Indian Standards Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of ‘BIS Catalogue’ and ‘Standards :Monthly Additions’. This Indian Standard has been developed from Doc: No. MGP 14( 390). 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