ISO INTERNATIONAL STANDARD 2563 Second edition 2009-09-01 Aircraft ducting and piping Profile dimensions for flanges of V-band couplings Canalisations et tuyauteries a bord des aeronefs - Dimensions d'encombrement des brides a section en V pour raccords Reference number ISO 2563:2009(E) @ ISO 2009 ISO 2563:2009(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 through IsO 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. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 2563 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 10, Aerospace fluid systems and components. Thissecondeditioncancelsandreplacesthefirstedition(lSO2563:1974),whichhasbeentechnicallyrevised @ ISo 2009 - All rights reserved ii ISO 2563:2009(E) INTERNATIONALSTANDARD Aircraft ducting and piping Profile dimensions for flanges of V-band couplings 1 Scope This International Standard gives the profile dimensions of V-band couplings, and the associated inch-based aircraft ducting and piping for the following external flange profiles: lightweight solid profile; medium-weight solid profile; heavyweight solid profile; narrow sheet metal profile; wide sheet metal profile; wide solid profile; wide sheet metal to solid profile. 2 Dimensions 2.1 The profile dimensions of a mating pair of flanges of V-band couplings shall comply with Figures 1 to 7 with inch equivalents in parentheses. 2.2The design of joints is at the discretion of the user, but the joint design shall remain within the range of the profiles given in this International Standard. 2.3 Flange halves are illustrated as being identical in the figures, but at the discretion of the user, the flange faces can be asymmetric, allowing the creation of locating spigots and recesses or other locating features, within the boundaries of the overall definition.The narrow and wide sheet metalflanges are identical.The single wide sheet metal profile flange shown in Figure 7 should be mated with a single solid profile flange shown in Figure 6. 2.4 The single flange end shown in Figure 7 may be machined on a pump or valve, which mates with ducting. @Iso2009-All rights reserved