Safety Valves

Pressure relief devices are commonly used in pressurized liquid, gas, and steam systems to relieve excess pressure before it can cause equipment damage or injuries. To prevent over pressurization, there must be some means of relieving the excess pressure quickly and safely. There are different ways to relieve excess pressure depending on the media that is pressurized, the atmosphere into which pressure may be released, and the personnel and equipment that is in the area. This module will discuss the design and operation of rupture discs, relief valves, and safety valves.