ISO INTERNATIONAL STANDARD 6182-8 Second edition 2019-05 Fire protection Automatic sprinkler systems - Part 8: Requirements and test methods for pre-action dry alarm valves Protection contre I'incendie - Systemes d'extinction automatique du type sprinkler. Partie 8: Exigences et méthodes d'essai des postes de prealarme sous air Reference number ISO 6182-8:2019(E) so @ IS0 2019 IS0 6182-8:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 6182-8:2019(E) Contents Page Foreword ..V 1 Scope 1 2 Normative references ...1 3 Terms and definitions 4 Requirements 4.1 Nominal sizes ..4 4.2 Connections 4.3 Rated working pressure 4 4.4 Body and cover. ..5 4.5 Strength. .5 4.6 Access for maintenance ..5 4.7 Components .5 4.8 Leakage. .6 4.9 Non-metallic components (excluding gaskets, diaphragms, seals and other elastomeric parts) .7 4.10 Sealing assembly elements. 4.11 Clearances. 4.12 Hydraulic friction loss 10 4.13 Endurance .10 4.14 Operationalperformance .11 4.15 Drains ..12 4.16 Alarms ..12 4.17 Valve impairment ..12 5 Production testing and quality control ..13 Tests ..13 6 6.1 Samples. ..13 6.2 Spring and diaphragm test ..13 6.3 Sealing element tests .13 6.3.1 Releasetest ..13 6.4 Warm-water ageing test for non-metallic components (excluding gaskets, seals and other elastomeric components), .14 6.5 Air ageing test for non-metallic components (excluding gaskets, seals and other elastomeric components) .14 6.6 Hydraulicfrictionlosstest .15 6.7 Valve leakage and deformation test .15 6.7.1 Body leakage test. .15 6.7.2 Sealing assembly test (below to above sealing assembly) .15 6.7.3 Sealing assembly test (mechanical type valves) .15 6.7.4 Leakage test for mechanical type valves (above to below sealing assembly) .15 6.7.5 Leakage test for differential type valves (above to below sealing assembly) .16 6.8 Body strength test.. .16 6.9 Operational test. 16 6.9.1 General ..16 6.9.2 Pre-action valve operation test - Set-up .16 6.9.3 Pre-action valve operation test. ..16 6.9.4 Pre-action dry alarm valve set installation ..17 6.10 Endurance test .19 6.11 Anti-reseating test. .19 6.12 Quickrelease 20 6.13 Salt mist corrosion test. 20 7 Marking ..21 8 Manufacturer's installation instructions .21 @ IS0 2019 - All rights reserved iii