This Guide provides an introduction for process engineers to the problems associated with pressure surge. It describes the causes of pressure surge and indicates how to make preliminary estimations of the likely magnitude of its effects. Methods of reducing the magnitude of the effects are discussed. Guidelines are given to help in assessing which piping system should be analyzed in detail and the data requirements to perform a detailed computer analysis of the system are given. Some examples are given of problems encountered by GBH Enterprises due to pressure surge. Tables 1, 2 and 3 contain some useful data to assist in surge calculations.

This Guide is not a comprehensive treatise on pressure transients. More detailed information is available in standard texts on the subject, for example references 1, 2 and 3.

This Guide does not give advice on the mechanical design of piping systems subjected to pressure surge, although it does indicate how to calculate the loads arising from pressure surge.