Piston type vacuum pumps and compressors are being used where oil-free air is a must. The oil free personality of the pump is certainly a guaranty of zero-maintenance costs. The pumps can be found in capacities of optimum 6 m3/hr plus they are capable to reach vacuum pressure of 10 mbar(a). Used as a compressor they reach a pressure of approx. 7 bar(g) optimum.
These pumps are getting used for light industrial 
