Twin Lobe Air Blower

These are also known as Twin Lobe Roots Blower / Vacuum Pump, or pd blowers used in various systems like Mechanical Vapor Recompression as MVR Blower and plants like Sewage Treatment Plants. These twin blowers are High volume-low pressure positive displacement (PD Type) Roots Blowers.A lobe or “Roots” blower is a valve-less displacement compressor without internal compression. Air enters the compression chamber and the volume of the air remains constant as the identical rotors rotate in the chamber.In a twin-lobe compressor, each rotor has two lobes (four lobes per compressor). In a tri-lobe machine each rotor has three lobes (six lobes per compressor). The two rotors rotate in opposite directions.