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Ro-Flo® sliding-vane, positive displacement compressors feature a solid, one-piece rotor eccentrically mounted inside a water-jacketed cylinder. Gas is compressed by being trapped between vanes, which form compartments that become smaller as the gas moves closer to the discharge port. As the volume in these compartments is reduced, the pressure is comparably increased until it is equal to the pressure in the discharge port area. Vanes are kept in contact with the cylinder as they wear by centrifugal force, and move radially in and out of the rotor slots during each revolution. This results in a constant level of efficiency and pulsation free compression. |
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Rugged, Long-Life Rotor Vanes
Durable Ro-Flo® rotor blades are the key component in ensuring continuous, reliable compressor service. Years of research and testing has resulted in a sliding vane that stands up to the toughest applications.
Rotor blade features:
- Self-adjusting, radially sliding vanes maintain constant pressure and flow rates.
- Constructed of durable laminated cloth impregnated with phenolic resin, heattreated to minimize wear at elevated temperatures.
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Quality High-Performance Seals
- Ro-Flo® custom-engineered shaft seals are crafted to perform consistently under the dirtiest and most corrosive conditions. “Double bellows” zero-leakage shaft seals are available. Single face mechanical seals are fully field-rebuildable.
- Balanced design and proper selection of seal face materials minimize heat build-up and maximize seal life.
Durable, Precision-Engineered Rotor Shaft
Our standard ASTM 1144 rotor shaft provides years of continuous worry-free service.
Rotor shaft features:
- Resistant to acid gas and solvents, ideal for vapor recovery service.
- Radially machined blade slots are hand finished and fully dressed to ensure longer blade life.
Oversized, Corrosion-Resistant Bearings
Ro-Flo® rotor shafts are supported by two identical cylinder roller bearings. These bearings offer the following special features not found in
other bearings:
- Special cage material for corrosion resistance.
- Custom-designed internal clearances for high temperature operation.
- We use 400 Series roller bearings with higher load capacity than standard 300 Series bearings.
Industries |
Applications |
Vapor recovery
Oil and gas production
Solid waste facilities
Waste water treatment
Chemical and petrochemical
Coal bed methane
Cogeneration
Refining
Power plants/utilities
Industrial refrigeration
Offshore drilling
Synthetic fuels production |
Hydrocarbon vapors
Natural gas/fuel gas
Coal bed methane
Landfill gas
Digester gas
Acid gas
Sour gas (up to 90% H2S)
Refrigeration
Condenser vacuum
Wellhead pressure reduction
Process vacuum
Polymerizing gas |
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