The burst pressure for the tri-dimensional burst disk used in the Scott is 4800psi. Carbon Composite Cylinders are made up of an Aluminum Alloy inner shell with Carbon Composite Wraps and Epoxy Resin. They have a burst pressure of 12,000 psi. 6,500 without the carbon composite wrap.
Read more about this topic: Scott 2.2/ 3.5/ 4.5 Air-Pak SCBA