Universal RAI-G™ Rotary Blower

Universal RAI G™ gas blowers are heavy duty rotary blowers designed with mechanical seals and rugged steel mounting feet. Optional feet are available for horizontal installations. The compact, sturdy design is engineered for continuous service when operated in accordance with speed and pressure ratings.

More Information

Features

Mechanical seals
Rigid one-piece cast iron casing
Anti-friction bearings
Splash oil lubricated spur timing gears
Connections in standard pipe sizes
Straight, precision machined two-lobe impeller
Ground steel shafts
Detachable steel mounting feet

Engineering Resources

uraig_drwg_pcurve_imp.pdf,
uraig_drwg_vcurve_imp.pdf,
uraig_drwg_dimensionsimp.pdf,
uraig_drwg_dimensionsmetric.pdf,
uraig_drwg_assmblydrawing.pdf,
uraig_tab_partslist.pdf,

Operating Principle

Two figure-eight lobe impellers mounted on parallel shafts rotate in opposite directions. As each impeller passes the blower inlet, it traps a finite volume of air and carries it around the case to the blower outlet, where the air is discharged. With constant speed operation the displaced volume is essentially the same regardless of pressure, temperature or barometric pressure. Timing gears control the relative position of the impellers to each other and maintain small, but defined, clearances. This allows operation without lubrication being required inside the air casing.

rotary_lobe_blwr_princ.pdf