ISO INTERNATIONAL STANDARD 10041-2 First edition 2010-10-15 Pneumatic fluid power Electro pneumatic continuous flow control valves - Part 2: Test methods to determine main characteristics to include in the supplier's literature Transmissions pneumatiques - Distributeurs électropneumatiques a commande continue de debit - Partie 2: Méthodes d'essai pour déterminer les principales caractéristiques a inclure dans la documentation du fournisseur Reference number ISO 10041-2:2010(E) @ ISO 2010 by IHS under I without license from IHS Not for Resale ISO 10041-2:2010(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 accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF fle 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 COPYRIGHT PROTECTED DOCUMENT ISO2010 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 2010 - All rights reserved I without license from IHS Not for Resale ISO 10041-2:2010(E) Contents Page Foreword. Introduction. 1 Scope. 2 Normative references... 3 Termsanddefinitions. 4 Symbols and units... 5 Test conditions .. 5.1 Gas supply 5.2 Temperature 5.3 Pressures ..... 5.4 Electrical supply. 6 Test procedure... 6.1 Test conditions 6.2 Inlet pressure .. 6.3 Static tests ... 7 Tests to determine control signal-flow rate characteristics 7.1 Test circuits ........ 7.2 7.3 Calculation of characteristics 8 Test to determine flow rate characteristics ............. 8.1 Test circuit ... 8.2 Test procedures... 14 8.3 Calculation of global characteristics... 15 9 Test to determine pressure gain characteristics .. 16 9.1 16 9.2 Test circuit ... 9.3 Test procedure. 17 9.4 Characteristic curveof pressure gainatnulloperatingflow rate. 10 Test to determine leakage at null operating flow rate characteristics.. .18 10.1 Test circuit . 18 10.2 Test procedure..... 10.3 Calculation ofcharacteristic ..18 11 Test to determine dynamic characteristics . 19 11.1 Test installation . 19 11.2 Test to determine frequency response 19 11.3 Test to determine step responses . 20 12 Presentation of test results.. 22 12.1 General. 22 12.2 Control signal-flow rate characteristics 12.3 Global flow rate characteristics ... .23 12.4 Pressure gain characteristics at null operating flow rate ... 23 12.5 Leakage characteristic at null operating flow rate........ 23 12.6 Dynamic characteristics .... .23 13 Identification statement (reference to this part of ISO 10041) ..... 24 Bibliography... 25 CopyrghtInternational OrganizaionStadardizaoghtsreserved ili ted withoutlicense from IHS Not for Resale