USA technology bi lobe air blower/roots blower/rotary blower
High Efficiency Bi-lobe Rotor /Integral-Shaft Ductile Iron Impeller.

Blower Feature:
High Efficiency Bi-lobe Rotor
Integrl-Shaft Ductile Iron Impellers
Dual Splash Lubrication
Over Size Cylindrical Roller Bearings
Low Vibration
Versatile Configuration
Piston Ring Air Seals
Lip-Type Viton Oil Seals
Duty: Pressure to 15 Psi
Vacuum to 15 Inch Hg
Flow: 205 to 3189 CFM
Power: 5 to 160 HP