ISO INTERNATIONAL STANDARD 18139 First edition 2017-02 Ships and marine technology Globe valves for use in low temperature applications Design and testing requirements Navires et technologie maritime - Robinets a soupape pour des applications a basse température - Exigences de conception et d'essais Reference number IS0 18139:2017(E) [so International Organization for Standardization @ IS0 2017 HEJIANG INSTOFSTANDARDIZATION C15956617 ed without license from IHS IS0 18139:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, 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 Internatinair PrganizationforStandardization ensee-ZHEJIANG INSTOF STANDARDIzARoISQa7 - All rights reserved Not for Resale, 2017/5/11 02:14:21 etworking permitted without license from IHS IS0 18139:2017(E) Contents Page Foreword ..V 1 Scope .1 2 Normative references 3 Terms and definitions 4 Pressure temperature rating 3 4.1 Types of fluid. ..3 4.2 Working pressure and design temperature 5 Structure .3 5.1 General structure of a globe valve .3 5.2 Body type and material. 5.2.1 Type. 3 5.2.2 Materials 5.2.3 Manufacturing. 4 5.3 Types and materials of extended bonnet. .5 5.3.1 Design .5 5.3.2 Materials 5 5.4 Plug types and materials 5 5.4.1 Design .5 5.4.2 Materials 5.5 Stem types and materials. 6 5.5.1 Design .6 5.5.2 Materials 6 5.6 Stem sealing. .6 5.7 Seat ring types and materials .6 5.7.1 Design. .6 5.7.2 Materials .6 5.8 Bolts and nuts types and materials .6 5.8.1 Design. 5.8.2 Materials .7 5.9 Driving system and operating device requirements 5.9.1 Driving system of the valve. 7 5.9.2 Manual operation of the valve. 5.9.3 Materials for operating devices 7 5.9.4 Explosion proof class .7 5.9.5 Checking open degree .7 5.9.6 Auto-operating devices .7 5.9.7 Sealing class for gear boxes. .8 5.9.8 Installation direction of operating devices .8 5.9.9 Direction of open and closed. 5.9.10 Special requirement. ..8 5.10 Surface treatment. 5.11 Welding and heat treatment. ..8 5.11.1 Welding ..8 5.11.2 Heat treatment. ..8 Test and inspection 6 6.1 Materialtest ..8 6.2 Non-destructive inspection 6.2.1 Radiographic testing (RT) .9 6.2.2 Penetrant testing (PT) 6.2.3 Ultrasonic testing (UT) .10 6.2.4 Retest ..10 6.2.5 Submission of inspection results .10 iii ISee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS Not for Resale, 2017/5/11 02:14:21