- Detachable steel mounting feet
- Rigid one-piece, cast-iron casing
- Anti-friction bearings
- Splash lubricated spur timing gears
- Connections in standard pipe sizes
- WHISPAIR™ noise‑reduction design
Universal RAI (URAI)-J Whispair Blower
Heavy-duty, versatile, bi‑lobe rotary blowers with reduced noise.
The ROOTS® Universal RAI‑J™ heavy‑duty, versatile rotary blowers are designed with detachable, rugged steel mounting feet that permit easy in‑field adaptability to vertical or horizontal installation requirements. Units can be easily adapted to any of four drive shaft positions: right, left, bottom, or top. The URAI‑J model incorporates WHISPAIR™ technology engineered to deliver low‑noise performance by reducing pressure pulsations and decreasing emitted sound levels by 3 to 5 decibels.
This makes the URAI‑J a strong fit for applications requiring quieter operation without compromising durability or performance.
- Pressures to 15 psig (1034 mbar)
- Vacuums to 16” Hg (539 mbar)
- Flows to 630 cfm (1070 m3/hr)
- Available with metric drive shaft and pipe connections
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