Two Stage Air Compressors

In oil-free water-injected screw models, two stage compressors use water to cool, lubricate, and seal during compression. For example, a compressor at 30 bar, air is first compressed at a lower pressure around 7 bar, then separated in water-air separator tank before moving to a second compression stage at higher pressure reaching to 30 bar. The water reduces friction and absorbs heat, increasing efficiency. After compression, the 2nd separator removes water from the air, ensuring cool, clean output suitable for sensitive applications.

In oil-flooded screw models, dual stage compressors compress air in two stages to increase efficiency. In the first stage, air is compressed and heated, with oil injected to lubricate and cool the components. The air is then transferred to the second stage, where it’s compressed further. This process ensures optimal performance and minimizes wear. After compression, the oil and air mixture is separated, producing clean, pressurized air for various applications.