Seawater is the main cooling medium in our petrochemical plant. Failure of the seawater piping systems could lead to total shutdown of the plant. The main piping system in the plant consists of prestressed concrete cylinder pipe (PCCP), cement mortar - lined carbon steel, fiberglass and nickel-copper alloy N04400/ASTM B165 pipe.

After more than fifteen years of experience with these materials, evaluation was made to select the most durable material for replacement projects and new construction.

This paper discusses the problems associated with each material, repair procedure and materials selection decisions for the long- term operation of the plant.

Subject
Prestressed concrete cylinder pipes, Materials, Piping, Nickel based alloys, Carbon steel pipes, Seawater, Fiber reinforced plastic, Mechanical failure, Repair, Fiberglass, Steel, Cement, Lining
Keywords:
Seawater Piping, Cathodic protection (CP), Preventive Maintenance (PM), Prestressed Concrete Cylinder pipe (PCCP), Cement Mortar-Lined Pipe, Fiberglass (FRP) pipe, Alloy N04400/ASTM B165 pipe
© 1999 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1999
Association for Materials Protection and Performance (AMPP)
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