Does anyone know what types of compressors/vacuum pumps can be used with low pressure steam at lab scale? I'm interested in a mechanical vapor compression system like this one used for large scale desalination and industrial processes. I think these use centrifugal compressors but I know those don't scale down well. For a ballpark sense of scale, I think the process would need something like: inlet : 9 psi/0.6 bar, 100°C outlet: 15 psi/1 bar, whatever superheated temp comes out flow rate: 100 CFM In the big picture, what characteristics make a compressor suitable for steam? eg, I suspect I should avoid cast iron or plastic but could I just use any compressor that was designed for R134a and fits the other requirements?