RL / Pressure and vacuum air systems
RL is a three-lobe Roots blower family with separate pressure and vacuum configurations in its catalogue. The document distinguishes blower body, complete pressure set and complete vacuum set codes. Its rotor arrangement and accessory options suit aeration and industrial air duties where the selected airflow and pressure are verified.
Choose the exact blower, speed and pressure/vacuum configuration. Catalogue air-volume tables refer to intake air at standard conditions: 20 °C, absolute pressure 1 atm and 65% relative humidity; this is a flow-reference condition, not a gas-temperature operating limit.
Series catalogue ↗Series overview
The RL catalogue describes three-lobe rotors in a cast-iron casing, with oil-lubricated bearings and timing gears outside the compression chamber. It lists blower-only units as well as complete pressure and vacuum sets, with accessories such as silencers, valves and gauges on the applicable sets. Applications include wastewater aeration, aquaculture, liquid agitation, filter backwash, pneumatic conveying and drying.
Performance tables give airflow, pressure, speed and required power across the range. Choose the exact configuration for the intended pressure or vacuum duty, then include pipework losses in system sizing. The compression chamber delivers oil-free air.
FC25 cast-iron casing, rotors with SCM440 shafts and SNCM220 timing gears. The compression chamber contains no lubricant; bearings and timing gears are oil-lubricated.
Choose pressure or vacuum operation according to configuration: RL is the blower body, RLC a pressure complete set and RLV a vacuum complete set. Check the series catalogue for the selected configuration.
No. The catalogue states that no lubricant is present in the compression chamber, while the bearings and timing gears are oil-lubricated.
RL identifies the blower body only. RLC is a complete set for pressure operation, and RLV is a complete set for vacuum operation.
Technical documents
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Choose the blower by the gas, required airflow and pressure or vacuum, drive and installation conditions.
GB is a ring-blower family offered in single-stage and double-stage configurations. The catalogue separates blowing and suction applications and provides airflow, pressure and vacuum data by model. Its direct-mounted impeller arrangement makes it a different air-moving technology from the RL three-lobe Roots blower.
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