This paper describes an experimental method to study the rapid dischar
ge of a fire suppressant (C3F8) from a pressurized vessel. Experimenta
l observations inside and at the exit of the vessel were made using hi
gh-speed photography. Boiling was not observed inside the vessel durin
g discharges. A simple mathematical model was developed to predict the
liquid depletion level and is compared to the experimental measuremen
ts.