A Structured Method for Proper Selection of Rupture Disks for Safety Relief in Ammonia Plants

摘要

Proper selection of a rupture disk is more than performing sizing calculations to make sure it is adequately sized for the emergency event Criteria such as operating pressure and temperature, material selection, gas or liquid service, etc. must be evaluated to determine the best disk type for the application. The cost of not evaluating such criteria can be significant to operations if the ammonia plant has excessive "nuisance" failures of an improperly specified rupture disk. This paper will present a structured step-by-step method for determining the appropriate rupture disk type for an application.