ISO INTERNATIONAL STANDARD 7183 Second edition 2007-12-15 Compressed-air dryers Specifications and testing Sécheurs a air comprimé Spécifications et essais Reference number ISO 7183:2007(E) @ ISO 2007 by IHS under lic Not for Resale ISO 7183:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. 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 @ ISO 2007 - All rights reserved edwithoutlicense from IHS Not for Resale ISO 7183:2007(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references 3 Terms and definitions. 4 Symbols ..... 4.1 Figure symbols 4.2 Symbols and units 4.3 5 Reference conditions 6 Standard rating parameters 7 Performance tests.... 7.1 Key performance parameters 7.2 Pressure dew point, flow rate and outlet temperature.. 7.3 Differential pressure drop.... 8 7.4 Power consumption..... 7.5 System air loss.. 7.6 Dealing with in-cycle variations . 12 7.7 13 7.8 Tests for energy saving devices 13 7.9 Instrument accuracy. 8 Uncertainties 14 9 Test report 14 9.1 Statement. 9.2 Technicaldata 15 Annex A (informative) Types of compressed-air dryers .... Annex B (informative) Report form for dryer performance. Annex C (normative) Noise measurement.. Annex D (informative) Pressure-measuring tubes.. Copyrght International Organization forstandardizalon ghts reserved ii ut license from IHS Not for Resale ISO 7183:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies 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, governmental and non-governmental, in liaison with isO, also take part in the work. iso collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. 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 7183 was prepared by Technical Committee ISO/TC 118, Compressors and pneumatic tools, machines and equipment, Subcommittee SC 4, Quality of compressed air. This second edition of ISO 7183 revises and replaces the first edition (IsO 7183:1986), together with IsO 7183-2:1996, which have been technically revised. IS0 2007 - All rights reserved ional Organization for Standardizatior ISO 7183:2007(E) Introduction Internationa