ROOTS™ Universal 47 URAI

Model: 47 URAI

The ROOTS™ Universal RAI blower Model 47 URAI is engineered with precision-balanced bi-lobe impellers, carburized alloy steel timing gears, and anti-friction bearing support for stable volumetric efficiency under continuous-duty operation. Its rigid cast iron housing, thrust-controlled gear arrangement, and detachable steel mounting feet provide dependable industrial blowers performance with adaptable installation configurations across Frames 22 thru 718.

Key Specifications

Max Flow

523 CFM

Max Pressure

7 psi

Max Vacuum

15" Hg

Maximum RPM

3600 RPM

Manufacturer

Roots

IO&M Manuals

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Literature

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Technical Details

Universal RAI Blower

Roots Blower Model 47 URAI

Flow Range: to 523 CFM

Max Δ Pressure: 7 psi

Max Δ Vacuum: 15″ Hg

Maximum RPM: 3600

Minimum RPM: 848

Max ΔT: 225˚F

Connection Size: 2.5″ FPT

Shaft Diameter: 0.875″

47 URAI Blower Design & Construction Features

Steel detachable mounting feet

Rigid one-piece cast iron casing

Anti-friction bearings

Thrust control configuration

Splash oil lubricated spur timing gears

Standard pipe size connections

Balanced precision-machined bi-lobe impellers

Ground steel shafts

Cast iron involute impeller construction

Cylindrical roller drive shaft bearing for V-belt load handling

Flexible right-hand, left-hand, top, or bottom drive positioning

Warranty Information

ROOTS™ Universal RAI® blowers are covered by a 2-year operational warranty with an additional 6 months for shipping and construction periods where applicable. ROOTS synthetic oil is recommended to support longer lubricant life and dependable operating performance.