Twin-lobe compressors/blowers are positive displacement units with two two-lobe (8-shaped) impellers mounted on parallel shafts, rotating in opposite directions within a casing. Their pumping capacity is determined by size, operating speed, and pressure conditions. Twin-lobe blowers are ideal for applications and processes that require pressures of around 250 to 450 millibars (3.6 to 6.5psig) in rather short periods of use.
