By . Air Compressor. At Sunday, September 16th 2018, 04:17:35 AM.
With nearly 40 online reviews from actual customers, the VIAIR 90P Portable Compressor has an above average customer score of 4.5 out of 5 stars. No, it’s not a heavy duty compressor to use in the garage or on carpentry projects, but the VIAIR 90P Portable Compressor is a great tool to have on hand to inflate tires or possibly pool floats and sports balls. It does the job quickly, and is a nice tool to have in the trunk of your car for those little emergencies that pop up when you need quick air in your tires.
The most common is the piston compressor. This falls under the positive displacement compressors, which you can find in fractional to very high horsepower ranges. The positive displacement air compressor works by filling an air chamber with air and reducing the chamber volume.
Compression not only produces heat but squeezes water out of the air which ends up in the tank. Tanks can rust internally over time and if this is not controlled, the rusted air tank can eventually explode causing considerable damage and even death. That is why it is really important to evacuate the tank of water regularly. Most air compressors come equipped with a drain valve at the lowest point of the tank. If you dont want to spray water all over the floor under the unit, you may want to consider piping it from the valve to another place such as under the floor or into a drain. Piped water will flow uphill into a sink because it is being pushed out of the tank by compressed air.