How do transient flows arise? What are the consequences? What are likely to be the critical fault conditions - and how can estimates be made of their seriousness? What practical Steps can be taken to alleviate the undesirable consequences? This book provides the answers to these questions and many more, written and structured to meet the needs of readers with varying levels of knowledge and experience - from students seeking an introduction to the subject to design engineers charged with ensuring that pipe systems are adequately designed and protected. This second edition of a well established and highly regarded text has been comprehensively refined and updated, based on the author's experience and feedback from using the original edition during the years since its first publication in the early 1990s.