100% FSC BS ISO DIANDARD 16874:2004 Hydraulic fluid power Identification of manifold assemblies and their components ICS 23.100.50 BSi NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTL British Standards BS ISO 16874:2004 National foreword This British Standard reproduces verbatim IS0 16874:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee MCE/18, Fluid power systems and components, to Subcommittee MCE/18/-/5, Control components, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled "International Standards Correspondence Index", or by using the “Search' facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages i to iv, pages 1 to 6, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the documentwaslastissued. Amendments issued since publication This British Standard was published under the authority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 7December2004 @ BSI 7 December 2004 ISBN 0 580 45003 1 BS ISO 16874:2004 INTERNATIONAL ISO STANDARD 16874 First edition 2004-06-15 Hydraulic fluid power ldentification of manifold assemblies and their components Transmissions hydrauliques ldentification des blocs collecteurs et de leurscomposants Reference number ISO 16874:2004(E) [so BS ISO 16874:2004 ii BS ISO 16874:2004 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 through ISO established has the right to be represented on that committee. International organizations, governmental and The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. isO shall not be held responsible for identifying any or all such patent rights. Controlproductsandcomponents ii BS ISO 16874:2004 Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circuit. Manifold assemblies used in hydraulic fluid power systems consist of components installed on standard mounting surfaces or in standard cavities machined in a manifold. Fluid connections among components in an assembly are concealed within the manifold. Complete, accurate identification of the components and In normal practice, the system supplier is responsible for the marking of manifolds and correlation of that subcontract provisions. iv BS ISO 16874:2004 Hydraulic fluid power ldentification of manifold assemblies and their components 1 Scope ThisInternationalStandardprovides identification codingformanifoldsused inhydraulic systems and for component installation fe