By . Air Compressor. At Sunday, September 09th 2018, 15:30:53 PM.
If you drive a large truck, with huge tires, you may find that the VIAIR 90P Portable Compressor s lacking a bit when the time comes to fill up your tires with air. This particular, portable compressor is designed more to be used with standard size car tires. It can easily inflate a flat 31 inch tire in just a few minutes. Once you hook up the VIAIR 90P Portable Compressor to your car battery, the compressor goes right to work, delivering air flow at up to 120 psi. That kind of air pressure doesn’t instantly inflate car tires, but it will get the job done in a few minutes, which is a heck of a lot quicker than dealing with a potentially dangerous tire change on the side of the road.
All reciprocating air compressors throw out some oil with the air they compress. When the tank reaches its designed pressure limit, a switch will interrupt electrical power to the motor. Simultaneously, a certain amount of oily air will be released into the shop environment. You may see oil collecting on the wall behind the compressor and on the pump and compressor as well over time. This is not cause for alarm but periodic cleaning may be needed.
You will need at least one regulator and a water trap in line before the regulator. These are not costly. A regulator allows you to set the correct air pressure for the tool you will be using (say, 80 PSI) instead of tank pressure (say, 175 PSI).