If you purchase a “do-it-yourself” type air compressor, or if you purchase any type of air compressor for that matter, check to make sure that it comes with an Air Regulator. If not, purchase one. You will be glad you did!
An air regulator is a device that lowers the downstream air pressure. Downstream air is the air that’s moving from the regulator towards your application.
Compressed air will flow from the compressor reservoir into the air regulator (this supply is called upstream air) and through a system of an internal diaphragm and springs, the regulator will maintain a constant downstream air pressure level, despite changes in the upstream supply pressure from the tank.
Recognize that you can only use a compressed air regulator to increase the downstream air pressure up to the level of the upstream supply air pressure. An air regulator will not enable you to “dial up” the downstream air pressure higher than the upstream level.
However, if you can figure out how to do that, do let me know, and we’ll both get rich! ;-}
You will want to set the downstream air pressure from your regulator at a pressure...