- Mechanical seals
- Detachable steel mounting feet
- Rigid one‑piece, cast‑iron casing
- Anti‑friction bearings
- Splash‑lubricated spur timing gears
- Connections in standard pipe sizes
- 1/8” NPT purge port at each seal for optional buffer gas application
Heavy‑duty, versatile, bi‑lobe rotary blowers with mechanical seals.
The Roots Universal RAI‑G (Gas) heavy‑duty, versatile gas rotary blower is 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. This model features mechanical gas seals engineered to help reduce the amount of process leakage through the blower, supporting gas‑handling applications that require reliable sealing performance.
This gas rotary positive displacement blower delivers consistent airflow and dependable operation when used within rated speed and pressure limits.
- Pressures to 15 psig (1034 mbar)
- Vacuums to 16” Hg (539 mbar)
- Flows to 1740 cfm (2956 m3/hr)
- Gas‑Handling Capability: Mechanical gas seals help reduce process leakage for gas service applications.
- Versatile Mounting Options: Detachable mounting feet allow four drive shaft positions: right, left, bottom, or top.
- Durable Construction: Compact, sturdy cast‑iron design supports continuous service within rated conditions.
- Robust Components: Alloy steel gears and cast‑iron impellers provide long‑term reliability.
- Enhanced Bearing Strength: Oversized antifriction bearings and cylindrical roller bearing withstand V‑belt pull.
- Improved Lubrication: ROOTS® exclusive “figure‑eight” gearbox design enhances oil distribution for extended gear and bearing life.
- Quality Assurance: Each unit undergoes mechanical testing and a 15 psig static leak test, with purge ports for buffer gas as needed.
The URAI‑G incorporates mechanical gas seals to help limit process leakage, making it suitable for gas‑handling environments where containment and reliability are essential. The bi‑lobe rotor design supports steady, pulse‑controlled flow, while the cast‑iron casing and alloy steel gears contribute to long‑term durability.
This design supports:
- Consistent gas movement under pressure or vacuum
- Reduced leakage through sealed components
- Flexible installation in existing gas systems
- Continuous‑duty operation within rated limits
A gas rotary positive displacement blower traps a fixed volume of gas between rotating lobes and the casing, moving it from inlet to discharge at a controlled rate. Because the flow is determined by rotor displacement rather than system pressure, the blower delivers consistent performance across varying conditions.
URAI‑G characteristics based on provided information:
- Bi‑lobe rotor design for steady flow
- Mechanical gas seals to help reduce leakage
- Cast‑iron construction for durability
- Flexible mounting for integration into gas‑handling systems
- Pressure capability to 15 psig and vacuum capability to 16” Hg
This makes the URAI‑G a strong fit for gas service applications requiring dependable sealing and airflow performance.