Rotary Screw air compressors are positive displacement air compressors that are mostly single stage helical or spiral lobe oil flooded screw air compressor. These air compressors are made up of two rotors within a casing where the rotors compress the air internally inside the air compressor with no valves. They are usually oil cooled (with air cooled or water cooled oil coolers) where the oil seals the internal clearances.
Since cooling occurs inside the air compressor, the components never get to extremely high operating temperatures. The rotary air compressor in hence considered a continuous operational air compressor machine.
Rotary screw air compressors are easy to maintain and operate. The Capacity control is accomplished by variable speed and variable compressor displacement. For the first control technique, a slide valve is positioned in the casing. As the compressor capacity is reduced, the slide valve opens, bypassing a portion of the compressed air back to the suction. Advantages of the rotary screw compressor include smooth, pulse-free air output in a compact size with high output volume over a long life.
The oil free rotary screw air compressor uses its uniquely designed air ends to compress air without oil in the compression chamber that outputs oil-free air quality. Oil free rotary screw air compressors are available air cooled and water cooled as to provide similar flexibility as oil flooded rotary screw air compressors when oil free air is required.
For a rotary screw air compressor for sale NPS Compressed Air Parts is your source for the best solutions out in the market. Widely Known for being simple, efficient, and its outstanding ability to operate 24 hours a day without overheating, the rotary screw air compressor has gained some popularity. At NPS Compressed Air Parts, we offer a wide range of rotary screw air compressors for sale used as well as brand new.
The benefits of choosing a rotary screw air compressor for sale from NPS Compressed Air Partsare huge. Not only are we an experienced supplier that has been doing business for over 20 years we also offer high quality rotary screw air compressors for sale at the lowest prices in the market. In addition, we offer preventive maintenance programs to keep your air compressor running at full efficiency.
