ISO INTERNATIONAL STANDARD 3822-3 Third edition 2018-01 Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 3: Mounting and operating conditions for in-line valves and appliances Acoustique - Mesurage en laboratoire du bruit émis par les robinetteries et les équipements hydrauliques utilisés dans les installations de distribution d'eau - Partie 3: Conditions de montage et de fonctionnement des robinetteries et des équipements hydrauliques en ligne Reference number IS0 3822-3:2018(E) os1 @ IS0 2018 IS0 3822-3:2018(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2018, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. IsOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org ii @ IS0 2018 - All rights reserved IS0 3822-3:2018(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Normative references ..1 3 Terms and definitions 4 Mounting. .1 4.1 General .1 4.1.1 General. 1 4.1.2 Installation .2 4.1.3 Connection .2 4.2 Fitting to the test pipe 2 4.3 Mounting of in-line valves and appliances with screwed conditions 2 4.4 Mounting of in-line valves and appliances with provision for soldering in copper connecting pipes. . 2 4.5 Mounting of in-line valves and appliances fitted with copper connecting pipes. .2 4.6 Mounting of in-line valves or appliances with two inlets .2 4.7 Discharge connection. .3 5 Test procedure. 3 5.1 General test conditions 3 5.1.1 General. .3 5.1.2 Water temperature 3 5.1.3 Outlets .3 5.1.4 Flow regulating and discharge system 3 5.1.5 Test pressures .3 5.1.6 Water flow rate 3 5.2 Procedure for stop valves 4 5.3 Procedure for control valves 4 5.4 Procedure for valves and appliances operated by water flow 4 5.5 Procedure for automatic in-ine valves or appliances operated by water pressure 5 5.6 Procedure for automatic in-line valves and appliances operated by water temperature... 5.7 Procedure for“safety groups" ..5 5.7.1 Safety groups without a pressure reducing valve 6 5.7.2 Safety groups with a pressure reducing valve .6 6 Test report ..6 Annex A (informative) Example of low noise flow resistance Bibliography .8 @ IS0 2018 - All rights reserved iii