BS ISO 1219-2:2012 BSl Standards Publication Fluid power systems and components Graphical symbols and circuit diagrams Part 2: Circuit diagrams bsi. ..making excellence a habit BS ISO 1219-2:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation ofIS0 1219-2:2012 It supersedes BS ISO 1219-2:1995, which is withdrawn. The UK participation in its preparation was entrusted to Technical CommitteeMCE/18,Fluidpowersystemsandcomponents. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN9780580662737 ICS 01.080.30; 23.100.01 Compliancewitha BritishStandard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments issued since publication Date Textaffected BS ISO 1219-2:2012 INTERNATIONAL ISO STANDARD 1219-2 NORME Second edition INTERNATIONALE Deuxieme édition 2012-09-01 Fluid power systems and components - Graphical symbols and circuit diagrams Part 2: Circuit diagrams Transmissions hydrauliques et pneumatiques - Symboles graphiques et schémas de circuit - Partie 2: Schémas de circuit Reference number Numero de reference ISO 1219-2:2012(E/F) @ISO2012 BSISO 1219-2:2012 ISO1219-2:2012(E/F) COPYRIGHTPROTECTEDDOCUMENT DOCUMENTPROTEGEPARCOPYRIGHT ISO 2012 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 either Iso at the address below or ISo's member body in the country of the requester. / Droits de reproduction reserves. Sauf prescription differente, aucune partie de cette publication ne peut etre reproduite ni utilisee sous quelque forme que ce soit et par aucun procede, electronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord ecrit de Ilso a I'adresse ci-apres ou du comite membre de Iso dans le pays du demandeur. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland/Publie en Suisse ii @ ISO 2012-All rights reserved/Tous droits reserves BS ISO1219-2:2012 ISO1219-2:2012(E/F) Contents Page Foreword.. vii Introduction. ..ix 1 Scope, 2 Normative references... 2 3 Terms and definitions. 4 General rules. 4.1 Presentation. 4.2 Format ..... 4.3 Layout.. 4.4 Equipment 5 Rules for identification of equipment in fluid power circuits ... 5.1 Identification code of components and hose assemblies ..... 5.1.1 5.1.2 Installation code (X-XX.X) 5.1.3 Medium code (X-.Xx..X)... 5.1.4 Circuit number (X-XX.X). 5.1.5 Component number(X-XX.X) 12 5.2 Port identification..... 2 5.3 Identification code for piping . 13 5.3.1 General.. 5.3.2 Optional identification number. 4 5.3.3 Technical information ... 14 5.3.4 Examples... 15 5.4 Optional application code for piping. 15 5.4.1 15 5.4.2 Medium code. 16 5.4.3 Line code.. 5.4.4 Pressure level index... 5.4.5 Example....... 6 Technical information on the circuit diagram 18 6.1 General.... 18 6.2 Circuit function. 18 6.3 Electrical reference designation... 18 6.4 19 6.4.1 Reservoirs, receivers and surgetanks ... 19 6.4.2 Air supply .... 20 6.4.3 Pumps.. 20 6.4.4 6.4.5 Directionalcontrolvalves. 21 6.4.6 Flow controlvalves,orifices and non-adjustable throttlevalves 6.4.7 Pressurecontrol valves and pressureswitches.... 22 6.4.8 Cylinders ...... 22 6.4.9 Semi-rotary actuators 23 6.4.10 Motors. 23 6.4.11 Accumulators 24 6.4.12 Filters..... 6.4.13 Piping. 25 6.4.14 Fluid level indicators. 25 6.4.15 Temperature indicators... 25 @ ISO 2012 - All rights reserved/Tous droits reserves ii BS ISO 1219-2:2012 ISO1219-2:2012(E/F) 6.4.16 6Thermostats .2