When you purchase an air compressor , it is important to familiarize yourself with all of its components. For example, your air tools may require different pressures in order to operate efficiently. To ensure that your compressor is at the right pressure, you can use the regulator to adjust the pressure levels. By turning the knob to different pressure settings, you can set your unit to work properly with all of your compressor parts. When you are shopping for a new air compressor in San Jose, be sure to contact a company that offers an extensive inventory of compressors. To take a look at the steps of adjusting an air compressor regulator, watch this video from expertvillage.