ISO INTERNATIONAL STANDARD 10372 First edition 1992-12-15 Hydraulic fluid power - Four- and five-port servovalves Mounting surfaces Transmissions hydrauliques - Servodistributeurs a quatre et cinq orifices--Plansdepose Referencenumber ISO10372:1992(E) ISO10372:1992(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out throughIso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with Iso, also take part in the work. iso collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization Draft International Standards adopted by the technical committees are national Standard requires approval by at least 75% of the member bodies casting a vote. InternationalStandardisO10372waspreparedbyTechnical Committee iSo/TC131,Fluidpower systems,Sub-CommitteeSc5,Controlproducts andcomponents. ISO 01992 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfiim, without permission in writing from the publisher. international Organization for Standardization Case Postale 56. CH-1211 Geneve 20· Switzerland Printed in Switzerland ii ISO10372:1992(E) Introduction In hydraulic fluid power systems, power is transmitted and controlled components found in such systems include servovalves. ii