What are the requirements for lubricant in CO2 compressors? ?
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Let’s discuss: What requirements should lubricants for CO2 compressors have?
For the CO2 compressors of model 4D12—55/220 in our factory, the grade of the circulating oil required is 40# (N68); its flash point is ≥190°C. The other requirements are not clear
Generally, it is necessary to use the appropriate type of lubricant as specified in the instructions; furthermore, the oil should be changed on schedule, and the lubricant added should be filtered.
Follow your company’s requirements; there are no special demands, right?
Based on the final exhaust temperature, choose L-DAA or L-DAB, etc.
We have chosen 68# mechanical oil, designed for overall system losses, to lubricate the crankcase and piston rings (the compressor is of the L-type piston compressor type).