Ro-Flo serves broad and varied niches. We do not profess to be experts in other types of compression technologies, but feel some comparative information of a general sort might be helpful to our visitors.

In the links below we have presented what we hope you will find to be some straightforward, objective information about some of the leading compression technologies we see being considered for similar applications to Ro-Flo’s.

blue Rotary Sliding Vane Compressor




Rotary Vane Liquid Ring Flooded Screw Lobe (Blower) Centrifugal Blower
Inlet Vacuum ~ 28 inches Hg ~ 28 inches Hg Requires minimum ∆P ~ 16 inches Hg ~ 16 inches Hg
Max Discharge Pressure (psig) 200 200+ 200+ ~ 20-25 ~ 20-15
Max Pressure Ratio 7:1 4:1 10:1 3:1 2:1
Flow Variation Over Life of Unit Low Low High Med Low
Process Gas Contamination Low High High Low Low
Power Requirement Low High Med Low Low
Coolant Flow Low High Med N/A N/A
Acid Tolerance Standard Materials Requires Stainless Requires Stainless Requires Stainless Requires Stainless
Ease of Repair On site/hand tools Send to shop Send to shop Send to shop Send to shop
CAPEX $$ $$$ $$ $$ $
Process Dew Point Concern? No Yes Yes No No

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The overall design and materials used to build a Ro-Flo compressor makes it one of the most reliable compressors ever built. Give us a call to discuss how we can meet your needs.