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ROOTS™ Universal 718 URAI

Model: 718 URAI

The ROOTS™ Universal 718 URAI Rotary Positive Displacement Blower, Frames 22 thru 718, is engineered for high-volume industrial airflow applications with capacities to 2316 CFM and operating pressures to 7 psi. Precision-machined bi-lobe impellers, carburized alloy steel spur timing gears, oversized anti-friction bearings, and a rigid cast iron casing support dependable continuous-duty operation. Synthetic blower oil provides an estimated 4000–8000 hour lubricant life at approximately 180°F operating temperature.

Key Specifications
Max Flow
2316 CFM
Max Pressure
7 psi
Max Vacuum
12" Hg
Maximum RPM
2050 RPM
Minimum RPM
545 RPM
Manufacturer
Roots
IO&M Manuals
Literature

Technical Details

Universal RAI Blower
Roots Blower Model 718 URAI
Flow Range: to 2316 CFM
Max Δ Pressure: 7 psi
Max Δ Vacuum: 12″ Hg
Max RPM: 2050
Min RPM: 545
Max ΔT: 130°F
Connection Size: 8″ Flange
Shaft Diameter: 1.562″
Drive End Lubrication: Grease
Gear End Lubrication: Oil
Required Oil – Horizontal Unit: 59.5 ounces
Required Oil – Vertical Unit: 32.3 ounces
Unit Weight: 650 lbs (295.5 kg)

718 URAI Blower Design & Construction Features

Frames 22 thru 718 blower platform
Steel detachable mounting feet
Rigid one-piece cast iron casing
Balanced precision-machined bi-lobe impellers
Ground steel shafts
Carburized and ground alloy steel spur timing gears
Oversized anti-friction bearings
Cylindrical roller bearing designed to withstand V-belt pull
Thrust control configuration
Splash oil lubricated gear end
Grease lubricated drive end
Standard industrial connection sizing
Vertical and horizontal mounting adaptability

Warranty Information

ROOTS™ Universal RAI® blowers are backed by a 2-year warranty with an additional 6 months covering shipping and construction where applicable. ROOTS synthetic lubricants are recommended to maximize lubricant life and long-term blower reliability. The initial oil change should be completed after the first 100 operating hours. Under standard operating temperatures near 180°F (82°C), synthetic blower oil typically provides 4000 to 8000 hours of service life. Oil life decreases significantly as operating temperatures increase by increments of 15°F to 18°F (8°C to 10°C).