ZD high pressure compressors are said to be the first in the world to offer 100% oil-free air with a Class 0 certification. Risk of any contamination by oil is effectively eliminated, thereby eliminating the need for subsequent product decontamination in applications such as the PET blowing market. The ZD produces high-pressure air (40 bar) in four stages, achieving lower pressure ratios per stage, which induces less wear-and-tear and reduced maintenance costs. Meanwhile, four-stage compression lowers energy consumption by 7% compared to a three-stage buildup. The ZD is also offered with an integrated variable speed drive (VSD), which is particularly useful if output requirements change frequently. With the VSD, up to 35% energy savings can be achieved. For low-noise requirements, a model at 76.4 dBA is available. — Atlas Copco, Stockholm, Sweden
High-Pressure Air can be Oil Free and Energy Efficient, Too
| By Chemical Engineering