Compression usually takes place in three to four stages, and most compressors offer charging rates between 6 to 18 cubic feet per minute, at approximately 5000 psi. Most compressors are driven by a single or three phase electric motor. Cartridges are available for the removal of moisture, odor and carbon monoxide. Using an air compressor eliminates the need for a cascade system. However, when only two or three SCBA cylinders need filled, the compressor will take a few minutes to achieve its optimum level of compression.
Most people use a compressor to supplement or maintain their cascade system.
A piston actuated device designed to precisely reduce the pressure of air in a cascade system, air control panel, or from a compressor. This type of precision is critical when filling modern, light weight breathing air cylinders to their set tolerances. These devices do not reduce airflow unless an in-line restrictor is used. They only reduce the force of the air from its source. The machine used to test the integrity of air and gas cylinders.