ISO INTERNATIONAL STANDARD 1219-1 NORME Third edition INTERNATIONALE Troisieme édition 2012-06-01 Fluid power systems and components - Graphical symbols and circuit diagrams Part 1: Graphical symbols for conventional use and data-processing applications Transmissions hydrauliques et pneumatiques Symboles graphiques et schémas de circuit - Partie 1: Symboles graphiques en emploi conventionnel et informatise Reference number Numerodereférence ISO 1219-1:2012(E/F) @ ISO 2012 tional Organization for Standardization ISO 1219-1:2012(E/F) COPYRIGHT PROTECTED DOCUMENT DOCUMENTPROTEGEPARCOPYRIGHT ISO2012 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, électronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord écrit de IisO a I'adresse ci-apres ou du comite membre de IisO 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 copyright@iso.org Web www.iso.org Published inSwitzerland/Publie enSuisse @ISO2012-All rights reserved/Tous droits réservés itted without license from IHS Not for Resale ISO 1219-1:2012(E/F) Contents Page Foreword ..vii Introduction. ..ix 1 Scope 2 Normative references... .2 3 Terms and definitions. .3 4 Identification statement (Reference to this part of ISO 1219)..... 3 5 General rules. 6 Examples of hydraulic applications ... 6.1 Valves ..... .8 6.1.1 Control mechanisms. .8 6.1.2 Directional control valves.... 11 6.1.3 Pressurecontrolvalves... 17 6.1.4 Flow-control valves ... 21 6.1.5 Non-return(check)valvesandshuttlevalves. 23 6.1.6 Proportional directional control valves.... 25 6.1.7 Proportional pressure control valves. 29 6.1.8 Proportional flow control valves.. 32 6.1.9 Two-port slip-in cartridge valves . 6.2 Pumps and motors... 47 6.3 Cylinders . 54 6.4 .57 6.4.1 Connectionsandjoints 6.4.2 Electrical equipment ... 59 6.4.3 Measuring instruments and indicators ... 60 6.4.4 Filters and separators........ 6.4.5 Heat exchangers.... .68 6.4.6 Energy accumulators (pressure vessels, gas bottles). 69 6.4.7 70 7 Examples of pneumatic applications. 7.1 7.1.1 Control mechanisms.. 71 7.1.2 Directional control valves.... 75 7.1.3 Pressurecontrolvalves... 84 7.1.4 Flow control valves .... 7.1.5 Non-return (check) valves and shuttle valves. 87 7.1.6 Proportional directional control valves..... 89 7.1.7 7.1.8 Proportionalflowcontrolvalves.... .92 7.2 Air compressors and motors .. 93 7.3 Cylinders 94 7.4 Accessories. 7.4.1 Connections and joints... 99 7.4.2 Electrical equipment ... 101 7.4.3 Measuring instruments and indicators . 102 7.4.4 Filters and separators.... ..103 7.4.5 Energy accumulators (pressure vessels, gas bottles) 110 7.4.6 Vacuum generators ..... 111 7.4.7 Suction cups.... Copyright Intemational organization frsandardizllinights reserved/Tous droits reserves ii from IHS Not for Resale