Ro-Flo’s low and high pressure models are flow-matched to enable two-stages of compression utilizing a single drive. The compressors are coupled together and then coupled to a drive, with both stages operating at the same speed.
2-Stage Systems Allow Far Greater Range
Variations on this standard setup include independent drives and Ro-Flo® models specifically selected to handle dissimilar flow requirements at different speeds. An intercooler and knockout vessel are typically required inter-stage to remove the heat of compression and any free liquids from the gas stream.
When Ro-Flo’s are configured as two stage systems for compression applications, they can produce gas discharge pressures as high as 200 psig (13.6 barg). In vacuum operation Ro-Flo’s achieve vacuum levels as low as 0.7 psia (5 kPa absolute).