The Dresser Roots Universal RAI blowers are heavy duty rotary blowers designed with detachable rugged steel mounting feet, which permit easy infield adaptability to either vertical or horizontal installation requirements. The Universal RAI blowers can even be hung from overhead supports.

Detachable mounting feet allow these units to be easily adapted to any of four drive shaft positions; right hand, left hand, bottom or top. The compact, sturdy design is engineered for continuous service when operated in accordance with speed and pressure ratings.

The basic model consists of a cast iron casing, 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. The Universal RAI features thrust control, with splash oil lube on the gear end and grease lube on the drive end. After standard tests, the unit is sprayed with a protective paint and boxed or placed on skids.

Available accessories include driver, relief valve, inlet and discharge silencer, inlet filter, check valve, extended base, V-belt or flexible coupling and drive guards.

Features

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

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Performance Curves:
ALL, 22, 24, 32, 33, 36, 42, 45, 47, 53, 56, 59, 65, 68, 76, 615, 711, 718

Roots URAI Blower