DOT Cascade System

DOT Cascade System
An air cascade system serves as bulk storage of high pressure breathing air to be used to refill breathing apparatus cylinders used in fire fighting, industry and scuba diving. Cascade systems can be used in either stationary or mobile applications. They can be made up of either ASME or DOT storage cylinders. The only practical pressures used in a cascade system are 3600 - 6000 PSI. Using 2400 PSI storage cylinders is a waste of time and resources. This results in incomplete SCBA cylinder refills, which is against NIOSH regulations and places the user in additional danger.   The DOT cylinders must be hydrostatic tested unlike the ASME cylinders.