Universal RAI-J® Positive Displacement Blowers - Dresser ROOTS™ Blower

Patented Universal RAI-J® WHISPAIRTM blowers are heavy duty rotary units in a compact, sturdy design, engineered for continuous service when operated within speed and vacuum/pressure ratings. The basic model features a cast iron casing with a computer-designed cast relief for noise and shock suppression, carburized and ground alloy steel spur timing gears secured to steel shafts with a taper mounting and locknut, and cast iron involute impellers. Oversized anti-friction bearings are used, with a cylindrical roller bearing at the drive shaft to withstand V-belt pull. Detachable rugged steel mounting feet permit easy in-field adaptablility to either vertical or horizontal installation requirements. The Universal RAI-J® incorporates grease lube on the drive end and splash lube on the gear end. ROOTS’ exclusive “figure-eight” gearbox design improves oil distribution to maximize bearing and gear life.

• Flow Rates: 28 - 600 ICFM (47 - 1019 m179;/hr)
• Pressures: No more than 13 PSI (No more than 896 mbar)
• Vacuum: No more than 16 INHgV (No more than 539 mbar)
• Horsepower: 0.6 - 37 bhp (0.44 - 28 kw)