Oil-free Rotary Screw Compressors
DH Series
DH Series - A Reliable and Efficient Heart
At the heart of the compressor is an innovative single screw compression element, featuring a single main rotor with 6 flutes meshing with a pair of 11 tooth gate rotors, that is proven in thousands of installations.
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Compression takes place in two chambers above and below the main rotor, as a result compression loads are balanced and bearing loads are significantly reduced. The low bearing loads extend compression element life and significantly reduce lifetime operating costs. |
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Water injected into the compression element provides lubrication, sealing and cooling. The superior cooling properties of water allows the compressor to operate at a low temperature providing near isothermal compression, low power consumption and class leading efficiency levels. A reverse osmosis membrane cartridge filters the injection water entering the compressor; as a result the water is always maintained at a high purity level.
100% Oil-Free Construction
Low operating temperatures and bearing loads enable maintenance free sealed bearings to be used, totally removing the need for lubricating oil in the compressor. 100% oil-free compression is therefore guaranteed and the maintenance and environmental costs associated with oil and oil filter changes are eradicated.
This short video presentation explains how an energy efficient oil-less compressor can help reduce your cost of ownership:
- Oil-free video Slow (500 KB/s broadband)
- Oil-free video Medium (1 MB/s broadband)
- Oil-free video High (High speed 2MB/s only)
