When the inlet/unloader valve is open, the air enters the compressor screw element. The screw element works like a pump and it compressed the air. During this process, oil is injected in the element. The oil is there to cool the air, as the air gets very hot during compression.
[pdf] The DHV-G/A series features a permanent magnet variable frequency single-stage compression screw air compressor that delivers stable air pressure with no impact during startup. It boasts variable flow control and excellent alternating current power supply voltage adaptability.
[pdf] The certified compressors are proven to be biocompatible and deliver 100% oil-free and germ-free compressed air. The compressors are extremely energy efficient and do not experience any loss of efficiency due to wear over their entire service life.
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