ISO/TR TECHNICAL REPORT 4191 Second edition 2014-01-15 Plastics piping systems for water supply - Unplasticized poly(vinyl chloride)(PVC-U) and oriented PVC-U (PVC-O) Guidance for installation Systemes de canalisations enplastiquepour I'alimentation en eau Polychlorure de vinyle non plastifié (PVC-U) et oriente PVC-U (PVC-O) - Pratique recommandée pour la pose Reference number IS0/TR 4191:2014(E) LSO @IS02014 HS unde I without license from IHS Not for Resale IS0/TR 4191:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2014 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. 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 @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0/TR 4191:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions, symbols, and abbreviations .2 3.1 Terms and definitions .2 3.2 Symbols... ..4 3.3 Abbreviations. 4 Parameters influencing design .5 4.1 Allowable operating pressure .5 4.2 Ring stiffness of pipes. .5 Hydraulic properties .7 5 5.1 Loss of head .7 6 Assembly methods. ..9 6.1 General. .9 6.2 Integral rubber ring joints .13 6.3 Solvent cement joints ..14 6.4 Mechanical joints .15 7 Storage, handling, and transport of pipes ..15 7.1 Handling. .15 7.2 Transport. .16 7.3 Storage ..16 7.4 Cold bending on site .17 7.5 Anchoring and thrust blocks. 19 8 Storage, handling, and transport of fittings, valves, and ancillaries 21 8.1 PvC-U fittings, valves, and ancillaries are light and easy to handle 21 9 Installation .22 9.1 Installation below ground 22 9.2 Pipe deflection. 25 9.3 Installation above ground. 27 9.4 Installation in ducts .31 10 Commissioning by site pressure testing .31 10.1 General 31 10.2 Preparation for test. 31 10.3 Test pressures. 35 10.4 Applying the test .35 10.5 Interpretation of results .36 11 Contaminated soil .36 12 Corrosion protection of metal parts .36 13 Pressure surge ..37 14 Usage at lower temperature ..37 15 Fatigue. .37 16 Repairs. .38 17 Pipeline detection .39 Annex A (informative) Classification of soils .40 Bibliography ..44 iii ted withoutlicensefromIHS Not for Resale