Table Of Content

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 10416 (1992): Fluid Power Systems and Components - Vocabulary [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 10416 : 1992 IS0 5596 : 1965 Indian Standard FLUID POWER SYSTEMS AND COMPONENTS- VOCABULARY ( First Revision ) UDC 621’8’032 : 001’4 8BlS 1992 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 April 1992 Price Group 14 IS 10416 :‘1992 IS0 5596 : 1965 Indian Standard FLUID POWER SYSTEMS AND COMPONENTS- VOCABULARY ( First Revision I NATIONAL FOREWORD This Indian Standard ( First Revision ) which is identical with IS0 5598 : 1985 ‘Fluid power systems and components - Vocabulary’, issued by the International Organization for Standar- dization ( IS0 ) was adopted by the Bureau of Indian Standards on the recommendation of the Basic Fluid Power Sectional Committee ( PE 14 ) and approval of the Production Engineering Division Council. This standard was first published in 1982. To align it with international practices, IS0 5598 : 1985 has been adopted in this revision. The text of the IS0 standard has been approved as suitable for publication as Indian Standard without deviation. 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 while in Indian Standards, the current practice is to use point ( . ) as a decimal marker. c) The word ‘IEC or IS0 Standard’ appearing in clause 4.6.0 should be read as ‘Indian I/ Standard’. In this adopted standard, reference appears to certain International Standards for which Indian Standards also exist. The corresponding Indian Standards which are to be substituted in their place are listed alongwith their degree of equivalence for the editions indicated: International Standard Corresponding Degree of Indian Standards Equivalence IS0 1219 : 1976 Fluid power systems IS 7513 : 1973 Graphical symbols Technically and components- Graphic symbols for fluid power systems equivalent IEC Publication No. 50 ( 37 ) Auto- IS 1885 ( Part 49 ) : 1978 Technically matic controlling and regulating Industrial process measurement equivalent systems [ superseded by IEC pub- and control lication No. 50 ( 351 )-I975 Inter- national electrotechnical vocabulary, chapter 351 : Automatic control I IS0 2382/l : 1984 Data processing- IS 1885 ( Part 52/Set 1 ) : 1965 Technically vocabulary - Part 1 : Fundamental Electrotechnical vocabulary : equivalent terms Part 52 Data processing, Section 1 Fundamental terms The technical committee responsible for the preparation of this standard has reviewed the provisions of following IS0 standards and has decided that they are acceptable for use in conjunction with this standard: IS0 554 : 1976 Standard atmospheres for conditioning and/or testing - Specifications IS0 558 : 1980 Conditioning and testing - Standard atmospheres -- Definitions IS0 3534 : 1974 Statistics - Vocabulary and symbols IS lop;16 : 1992 IS0 5598 : 1985 Typographical Error While adopting the text of this International Standard, the following typographical errors were noticed: Reference Corrections to be Effected Cl. 5.8.6 Read ‘de-aerator’ for ‘de-aerater’ Cl. 5.9.3.5.7 Read ‘isocyanate’ for ‘socyanate’ Alphabetical index : - Read ‘Collapse pressure’ for ‘collapsed pressure’ - Read ‘Damping pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.3.1.3 Dashpot.. . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . .3.8’ for ‘Damping pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.3.1.3 Dashpot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~. . . . . . . . . . . . . . . . 3.8 Damping pressure... . . . . . . . . . . . . . . . . . . . . . . . . 3.5.3.1.3 Dash pot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8’ - Delete the word ‘Linear’ - ‘Spring offset’ - Read index ‘4.1.3’ for ‘6.3.2’. Only the English language text in the International Standard has been retained while adopting it in Indian Standard. 2 IS 10418 : 1992 IS0 5598 : 1985 Contents Page 0 Introduction .............................................. 7 1 Scope and field of application ................................ 2 Fundamentals .............................................. 2.0 General ................................................ 2.1 Conditions of utilization ................................... 2.2 Performance characteristics. .......................... 8 2.3 Graphical representation ............................... 2.4 Miscellaneous terms ................................ .’ 11 S Energy conversion. .................................... 12 3.0 General ......... ................... :. ...... 12 3.1 Hydraulic pumps ..... ..................... 3.2 Motors. ............. ............. 3.2.1 Air motors ..... ... .... ............. 14 3.2.2 Hydraulic motors ........................... 14 3.3 Hydraulic pump-motor .... ..................... ” 15 3.4 Variable speed drive units (integral transmissions) ............ 3.6 Cylinder. ............ ........................ 3.6 Pressure intensifier .............................. 3.7 Pneumatic-hydraulic actuator .......................... 3.8 Dashpot .................. ................... Energy control and regulation ...... .............. 4.0 Valve .,....... .._....._._ 4.1 Directional control valve 4.2 Check valves; non-return valves 4.3 Pressure control valve 2 1 3 IS 10416 : 1992 IS0 5598 : 1985 Page 4.4 Flow control valves ,22 4.5 Shut-off Iisolatingl valve 22 4.6 Fluid logic and fluid analogue devices. 23 4.7 Servo-valve............. 25 5 Energy transfer and conditioning equipment 28 5.0 General .......................... 28 5.1 Energysources .................... 28 5.2 Flowlines, ports and connections ...... 28 5.3 Reservoir; receiver ........ 30 5.4 Accumulator, .................. 30 5.5 Conditioning of compressed air ..... 30 5.6 Heat exchangers ........... 31 5.7 Silencer ............ 31 5.6 Hydraulic filter ....... 31 5.9 Sealing device ...... 33 6 Control mechanisms. 34 6.0 Automatic control 34 6.1 Mechanical components 34 6.2 Manual control 34 6.3 Mechanical control 34 6.4 Pressure control. 35 6.5 Electrical control 35 6.6 Combined control 35 6.7 Servo control 75 6.6 Auxiliary control, 35 7 Additional apparatus 35 7.1 Measuring instruments 35 7.2 Indicators 3h 7.3 Switches 3ti 7.4 Other apparatus 36 6 Assem blies 37 6.0 General 37 4 IS 10416 : 1992 IS0 5598 : 1985 Page 8.1 Drivenassemblies .............................................. 37 8.2 Motorassemblies ............................................... 37 8.3 Control and regulation assemblies ....... :. ......................... 37 8.4 Air conditioner unit .............................................. 37 8.5 Fluid power circuit ............................................... 37 9 Complete installations - Assemblies ................................ 38 9.0 General ........................................................ 33 9.1 Installation .................................................. 33 9.2 Commissioning and maintenance .................................. 39 10 Hydraulicfluids ................................................... 40 10.0 General ...................................................... 40 10.1 Classification of fluids .......................................... 40 10.2 Fluid types ................................................... 40 10.3 Characteristics of fluids. .................................... 40 10.4 Contamination .............................................. 4:’ Alphabetical index, ............................................. 43 5 As in the Original Standard, this Page is Intentionally Left Blank