Does the compressor that do not have oil compress air true not oiliness? The truth is not such!
A lot of centrifugal when doing the market to publicize with compressor of the screw that do not have oil, say to obtain attestation of orgnaization of tripartite authority, yielding compression air oil content can achieve Class 0, can achieve do not have oil absolutely. It is not quite rigorous that this is stated. Manufacturer and user are to negotiate the numerical value under Class 1 to the definition of Class 0 of total oily content in ISO8573-1 2010, is not under 1 class is 0 class, not be not to have oil absolutely more.