Fire sprinkler systems are expected to perform reliably over the design life of the protected facilities. Several failures have led to two large recalls of sprinkler heads and revisions to industry standards. In this paper we are presenting case histories of four different fire protection systems where corrosion resulted in premature discharge/leakage causing significant property damage or facilities downtime. One case involves tuberculation of galvanized piping in a nominally dry system. Two cases involve dealloying (dezincification) corrosion of brass sprinkler heads. Another case involves microbiologically induced corrosion (MIC) corrosion of flexible, corrugated, stainless steel feed tubes.

Subject
Pits, Water, Piping, Metal surfaces, Tubes, Bellows, Leaks, Silicon, Deposit corrosion, Zinc, Stainless steel, Dezincification, Pinholes
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
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