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“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

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“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 7513-2 (2002): Fluid Power Systems and Components --Graphic Symbols and Circuit Diagrams, Part 2: CircuitDiagrams [PGD 16: Fluid Power]

IS 7513 (Part 2): 2002ISO 1219-2:1995

Indian Standard

FLUID POWER SYSTEMS AND COMPONENTS —GRAPHIC SYMBOLS AND CIRCUIT DIAGRAMS

PART 2 CIRCUIT DIAGRAMS

ICS 01 .080.30; 23.100.01

@ BIS 2002

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Ju/y 2002 Price Group 7

!

Basic Fluid Power Sectional Committee, BP 14

NATIONAL FOREWORD

This Indian Standard (Part 2) which is identical with ISO 1219-2:1995 ‘Fluid power systems andcomponents — Graphic symbols and circuit diagrams — Part 2: Circuit diagrams’ issued by theInternational Organization for Standardization (ISO) was adopted by the Bureau of Indian Standardson the recommendation of the Basic Fluid Power Sectional Committee and approval of the Basic andProduction Engineering Division Council.

In fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressurewithin a circuit. Circuit diagrams are an aid to facilitate the understanding of the design and descriptionof installations so that, by a unified representation of them, confusion and error can be avoided duringplanning, manufacturing, installation and maintenance.

The text of the ISO Standard has been approved as suitable for publication as Indian Standard withoutdeviations. Certain conventions are, however, not identical to those used in Indian Standards. Attentionis patilcularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should beread as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker in the International Standard while in IndianStandards, the current practice is to use a point (.) as the d~imal marker.

c) Only the English language text in the International Standard has been retained while adoptingit in this Indian Standard.

In the adopted standard, reference appears to certain International Standards for which Indian Standardsalso exist. The corres~ondirw Indian Standards which are to be substituted in their Place are listedbelow along with their”degre; of equivalence for the editions indicated:

/nternationa/ CorrespondingStandard /ndian Standard

ISO 1219-1: 19911) Fluid power IS 7513 :1974 Graphical symbols forsystems and components — Graphic fluid power systemssymbols and circuit diagrams — Part 1:Graphic symbols

ISO 3098-1:1974 Technical drawings IS 9609 (Part 1) :1989 Lettering on— Lettering — Part 1: Currently used technical drawings: Part 1 Englishcharacters lettering (first revision)

1s0 3448:1992 Industrial liquid IS 9466:1980 Viscosity classificationlubricants — ISO viscosity classification of industrial liquid lubricants

ISO 5457: 19802) Technical drawings IS 10711:1983 Sizes of drawing— Sizes and layout of drawing sheets sheets

ISO 5598:1985 Fluid power systems IS 10416:1992 Fluid power systemsand components — Vocabulary and components — Vocabulary (first

revision)

Degree ofEquivalence

Identical withISO 1219:1976

Identical

Modified

Identical

do

The technical commitiee responsible for the preparation of this standard has reviewed the provisionsof the following ISO Standards and has decided that they are acceptable for use in conjunction withthis standard:

ISO 6743-4:1982 Lubricants, industrial oils and related products (class L) – Classification –Part 4: Family H (Hydraulic systems)

IEC 848:1988 Preparation of function charts for control systems

Annexes A to C of this standard are for information only.

1) Under revision and may be adOp@dOnrevisionasdecidedby the Sectional Committee.2) Since revised as ISO 545’:1999 Technical product documentation — Sizes and layout of drawing sheets

IS 7513 { Pan 2 ) :2002

ISO 1219-2:1995

,

Indian Standard

FLUID POWER SYSTEMS AND COMPONENTS —GRAPHIC SYMBOLS AND CIRCUIT DIAGRAMS

PART 2 CIRCUIT DIAGRAMS

1 Scope

This part of ISO 1219 establishes the main rules fordrawing hydraulic and pneumatic diagrams usingsymbols from ISO 1219-1.

It also includes examples of circuit diagrams.

2 Normative references

The following standards contain provisions which,through reference in this text, constitute provisions ofthis part of ISO 1219. At the time of publication, the

editions indicated were valid. All standards are subjectto revision, and parties to agreements based on thispart of ISO 1219 are encouraged to investigate thepossibility of applying the most recent editions of thestandards indicated below. Members of IEC and ISOmaintain registers of currently valid InternationalStandards.

ISO 1218-1:1991, F/uid power systems and comp-onents — Graphic symbols and circuit diagrams —Part 1: Graphic symbols.

ISO 3098-1:1974, Technical drawings — Lettering —Part 1: Currently used characters.

ISO 3448:1992, Industrial liquid lubricants — ISO vis-cosit y ckssification,

1

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

ISO 5457:1980, Technical drawings — Sizes andlayout of drawing sheets.

ISO 5598:1985, Fluid power systems and com-ponents — Vocabulary.

ISO 6743-4:1982, Lubricants, industrial oils andrelated products (class L) — Classification — Part 4:Family H (Hydraulic systems).

IEC 848:1988, Preparation of function charts for con-tro/ systems.

3 Definitions

For the purposes of this part of ISO 1219, the defi-nitions given in ISO 5598 and the following definitionsapply.

4 General rules

4.1 Presentation

The diagrams shall be clear and shall make it possibleto follow the circuits for all the movements andcommands throughout the various sequences of theoperating cycle.

All the hydraulic and pneumatic equipment, as well astheir connections, shall be represented.

The diagrams need not take account of the physicalarrangement of the equipment in an installation. Cir-cuit information which includes diagrams and otherrelated details should form a complete series of docu-ments. This group of documents shall be identified bya common reference.

4.2 Format

Presentation in A4 or A3 formats as described inISO 5457 is preferred. If formats other than A4 arerequired, the drawings shall be folded to A4 sizefollowing the method given in that standard. The useof other kinds of data media shall be agreed betweenthe supplier and purchaser. Any references used shallbe in accordance with ISO 3098-1.

3.1 actuator: Component (for example, motor,cylinder) that transforms fluid energy into mechanicalenergy.

4.3 Layout

3.2 component: Individual unit (for example,cylinder, motor, valve, filter), comprising one or moreparts designed to be a functional part of a fluid powersystem.

3.3 piping: Any combination of fittings, couplings orconnectors with pipes, hoses or tubes which allowsfluid flow between components.

3.4 system: Arrangement ofponents which transmits andenergy.

2

interconnected com-controls fluid power

4.3.1 Lines or connections between the differentpieces of equipment should be drawn with minimumcrossing points. Where they do cross, the represen-tation specified in ISO 1219-1 shall be used.

4.3.2 The position of codes and indices should notoverlap the space reserved for equipment and lines.

4.3.3 Dependent on the complexity of the system, adivision into groupings, having related control func-tions, should be made.

A complete control function, including related actu-ators, should be represented on a single sheet, wher-ever possible. Provisions shall be made to identify

connections of lines between sheets (see annex B,pages 1/3 and 2/3, for examples of coding for theidentification of piping between consecutive sheets ofthe diagram).

The limits of a sub-assembly shall be defined by a dot-dash line.

4.3.4 Devices such as limit switches or limit valvesactivated by actuators should be shown at their placeof action, for example at the cylinder, by a markingline and their identification code.

Where the direction of actuation is unidirectional, anarrow (-+ shall be added to the marking line.

4.3.5 Hydraulic and pneumatic symbols of equip-ment should in principle be arranged from the bottomto top and from left to right in the following order:

— energy sources: bottom left;

— control components in sequential order: upwardsfrom left to right;

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

5 Rules for identification of equipment influid power circuits

5.1 General

An identification code for the equipment shall beprovided on the circuit diagram next to the respectivesymbol. It shall be used in all related documents.

5.2 Identification code of components(excluding piping)

The following identification code for components shallbe used if no other code is stipulated.

The identification code shall contain the followingelements and should be enclosed in a box:

I

Eiii!i”:e=NOTE 1 See annex A for information.

— actuators: at the top from left to right.

5.2.1 Installation number

This code consists of numbers beginning with 1. Thisinstallation number shall be used if the whole circuitconsists of more than one installation.

4.4 Equipment

5.2.2 Circuit number

4.4.1 Symbols representing fluid power equipmentshall be drawn in accordance with ISO 1219-1.

If there is a detailed and a simplified symbol, only onerepresentation shall be used on the same diagram.

4.4.2 Symbols shall be drawn as follows:

for hydraulics: unless otherwise indicated, rep-resenting components in the readyto start position;

for pneumatics: unless otherwise indicated, rep-resenting components in the readyto start position with pressureapplied.

This code consists of numbers. Preferably start with Ofor all accessories fitted on the power unit or supply.Continue with sequential numbers for the differentfluid power circuits.

5.2.3 Component code

Each component shall be clearly identified by a codein accordance with the following list:

Pumps and compressors: P

Actuators: A

Prime movers: M

Sensors: sValves: vAll other equipment: z, or another letter, but

not “those shownabove

3I

$

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

5.2.4 Component number For pneumatic reservoirs, indicate

This code consists of numbers beginning with 1 and — capacity’ ‘n litres;each component in a given circuit is numbered — maximum allowable pressure, in megapascals (mconsecutively. bars~)).

5.3 Function identification for piping6.2 Air supply

The function shall be identified as follows:

P for pressure supply lines;The following data shall be indicated:

T for tank return lines (hydraulics); — rated flowrate, in Iitres per minute, and/or dis-L for leakage drain lines (hydraulics). placement, in cubic centimetres;

All lines transmitting different pressures shall be —supply pressure range, in megapascals (or bars).

additionally identified by numbers beginning with 1.

6.3 Pumps

5.4 Port and piping connection identification

Ports shall be identified on the circuit diagram by thecharacters indicated on the components, on the sub-plates or on the manifolds.

Piping connections between sub-assemblies shall alsobe identified.

For fixed displacement pumps, indicate

— rated flowrate, in Iitres per minute, and/or dis-placement, in cubic centimetres.

For variable displacement pumps, indicate

— minimum and maximum flowrate, in Iitres perminute, and/or maximum displacement, in cubiccentimetres;

— setting points of control.

6.4 Prime movers

1 6 Technical informationThe rated power, in kilowatts, and speed of rotation,in revolutions per minute, shall be indicated.

I At least the following information shall be included onthe diagram next to the appropriate symbol.4’

! The use of different units for the same parameter[

6.5 Pressure control valves and pressurewithin a document should be avoided. switches

NOTE2 A complete list of required technical information The setting pressure(s), in megapascals (or bars), shallis given in ISO 4413 and ISO 4414. be indicated.

6.1 Reservoirs 6.6 Cylinders

For hydraulic reservoirs, indicate The cylinder bore, rod diameter (not necessary forpneumatic cylinders) and maximum stroke, in milli-

— recommended maximum fluid capacity, in Iitres; metres (for example, 0 100/56 x 50) shall be indi-

recommended minimum fluid capacity, in Iitres;cated, and the function (for example, clamping, lifting,—advance) shall be specified.

— type, category and viscosity class of the fluid inaccordance with ISO 3448 and ISO 6743-4.

1) 1 bar=O,l MPa=l OsPa; l Pa=l N/mz

4

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

6.7 Semirotary actuators

The following data shall be indicated:

— displacement per movement, in cubic centi-metres;

— angle in degrees,

and the function (forshall be specified.

6.8 Motors

example, swiveling, turning over)

For fixed displacement motors, indicate the displace-ment, in cubic centimetres, and specify the(for example, drilling, driving).

For variable displacement motors, indicate:

— maximum and minimum displacement,centimetres;

— torque, in newton metres;

function

in cubic

— speed of rotation, in revolutions per minute;

— direction of rotation,

and specify the function (for example, drilling, driving).

6.9 Accumulators

The following data shall be indicated:

6.11 Piping

For pipes and tubes, indicate the nominal outside di-ameter and wall thickness, in millimetres (for example038 X 5).

For hoses, indicate the nominal inside diameter, inmillimetres (for example 0 16).

6.12 Thermostats

The regulated temperature setting, in degrees Celsius,shall be indicated.

6.13 Timers

The delay time orindicated.

timing range, in seconds, shall be

6.14 Gauges

The pressure range, in megapascals (or bars), shall beindicated.

7 Supplementary information

Supplementary information should be provided, suchas parts list, sequence description, arrangementof equipment, function chart (in accordance withIEC 848).

— total shell volume, in Iitres;

— precharge pressure (PO),in megapascals (or bars),at a specified temperature range, in degrees 8 Examples of circuit diagramsCelsius (for gas-loaded accumulators only); Examples are given in annexes B and C of circuit

— maximum working pressure (pz) and minimum diagrams in accordance with this part of ISO 1219,

working pressure (PI) (for gas-loaded accu-mulators only), in megapascals (or bars);

— type of gas (for gas-loaded accumulators only).

9 Identification statement (Reference to thispart of ISO 1219)

6.10 Filters

In hydraulic circuits, indicate the filtration ratio.

In pneumatic circuits, indicate the micrometre rating.

Use the following statement in test reports, cata-Iogues and sales literature when electing to complywith this part of ISO 1219:

“Circuit diagrams are in accordance with ISO 1219-2:1995, Fluid power systems and components —Graphic symbols and circuit diagrams — Part 2:Circuit diagrams. ”

5

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

Annex A(informative)

Identification of equipment in fluidpower circuits

A.1 Relationships between the individualparts of the identification code forcomponents

For example, p~ant. production

Line

Instantiation No.

CIrcuil No.

Component code

Component No.

o1-IIJ &l1-lB1- *

I-2A

riiijiial&iL4iiiallIEi&l

II

IS 7513 ( Part 2 ) :2002ISO 1219-2: 1995

A.2 Examples of identification ofcomponents

EEl

[.111

J

I I

4

I I DWIT

L

5

,A

Cylinder (actuator) 14-2A11

Ei!’!i”;A41_Ji

k

Sensor[

4-2

;;:;;;;a

I

Circuit No.

7

II

IS 7513 ( Part 2 ) :2002

ISO 1219-2:1995

PTml

t=

#EJ

Cylinder (actuator)I

1 AI

,n~+~~~a+ion~~,~

Circuit No. TTT

Sensor 1 s 2

,n~+a~~a+ion~~, ~

Circuit No. TTTcomponentcode ~ IComponent No. I

8

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kW63

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a

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

Turning

II

Feed Clamp

ml@ 100/56x300 t

qqzlIm J?%’

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mB3 MPa

N:

s

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0 16x2P T

PI m ~p T

P20 30X4

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— P2—T

Is7513

(P

art2

):2002

ISO

1219-2:1995

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f

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LnNs

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ZX

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mr’

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0

11

,

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

Annex C(informative)

Examples of pneumatic andelectropneumatic circuit diagrams

C.1 Example of a pneumatic circuitdiagram

0=

,..—..—..—..—.._ .._940 l/reinp~(n= 0,7 MPa ; 0,6 MPap~,x =lb MPa

1I

m

P3

P 0 8X1 1

~ 12

kT T

1 +3 5

1 +3

P @ 6x1 L 7

Any flowline without designation: 04 x 1

Page 113

12

/

IS 7513 (Part 2):2002ISO 1219-2:1995

w;

mc.—

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>“”Ha &wI-O*

i--l+%w112-U

!

1 ) Port for initializing pulse

Any flowline without designation: 04 x 1

Page 2/3

13

IS 7513 ( Part 2 ) :2002ISO 1219-2:1995

c

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This detailed representation of the stepping circuit is drawn according to clause 4.4.2 in the ready to start position withpressure applied.

14Page 313

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N o 0 N

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of standardization, marking and quality certification of goodsand attending to connected matters in the country.

Copyright

B1S has the copyright of all its publications. No part of these publications may be reproduced in any for]mwithout 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 areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould 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. BP 14 (01 69).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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