Experience of Pumps for Severe Duties in Urea Plant Service

A brief review of the main production process is given, with particular reference to the isobaric loop of the Snamprogetti process, in order to identify the severe service conditions where High Pressure pumps are used. The types of pumps which have been installed during the past decade in Snamprogetti plants are listed, and the special features of design, materials of construction, and installation to ensure trouble free operation in severe conditions are described.