Abstract
Four simple, real examples from the chemical industry show particularly critical points which, according to experience, can jeopardize the safe functioning of pressure safety devices. Typical pitfalls in pressure relief and vacuum protection devices in package units of process plants, in outsourcing their engineering, in the application of standards for their sizing and in the safe discharge are shown.
Systematic life cycle management for these pressure relief and vacuum protection devices in process plants in the chemical industry is then presented. By using it, pressure safety systems can be implemented safely and if they do show weaknesses, these are discovered at an early stage. This makes an important contribution to the safe and reliable operation of chemical plants.
