- Choice of impeller and casing materials of construction
- API capability
- ROOTS Control packages
- Precise discharge Position: Adjustable in 45° increments, starting at 0° (UP) position
- Labyrinth, carbon ring, mechanical seal arrangements
- Variable axial inlet guide or variable peripheral inlet guide
Single-stage centrifugal compressor
The ROOTS® OIB single-stage centrifugal compressors are designed with an overhung impeller arrangement with its own bearing housing to provide maximum design flexibility. Suitable for a variety of constant-speed or variable-speed drivers.
- Flows from 5,000 to 250,000 cfm (8495 to 424753 m3/hr)
- Polytropic heads to 42,000 ft.
- Centrifugal Compressor Design: Features an overhung style design comprising a rotor assembly, inlet housing, volute, casing cover, and bearing stand. Optional inlet guide vanes enable process control without a variable speed drive or inlet throttling valve. Compliant with API-617 standards.
- Speed Increasing Gear Box: Designed to elevate the driver input speed to the rated compressor speed. The low-speed shaft can integrate the main oil pump of the lube system if required. Alternatively, the compressor can be supplied without a gear box if the driver can meet the rated speed and power. Meets API-613 requirements.
- Driver Options: Primary drive options include electric motors, with or without a variable frequency drive, and steam turbines. In certain cases, internal combustion (IC) engines have been employed.
- Compressor Lube System Options: Three main options are available: integral lube system, console lube system with a separate reservoir, or a separate console shipped loose for installation near the compressor. Lube systems designed to meet API-614 Chapters 2 or 3.
- Boxed Construction: Utilizes structural supports for bracing and rigidity, with grouting pockets, anchor bolt holes, and leveling screws for additional stability. Incorporates lifting lugs for ease of transportation. Can be supplied with a drip lip and/or non-skid decking.
- Conditional Monitoring and Local Control: Provides conditional monitoring for the compressor, driver, and lube oil system. The local control panel, whether baseplate-mounted or off-mounted, contains the intelligence for positioning inlet guide vanes. Offers real-time local data through gauges, switches, or transmitters.
Keep Your Equipment Performing at Its Best
ROOTS® Performance Programs are designed to help protect your investment, reduce unexpected downtime, and simplify ongoing maintenance. With OEM‑backed parts, service, and proactive support options, these programs make it easier to keep your blower running reliably and efficiently throughout its lifecycle. Explore flexible maintenance, service, and parts plans tailored to your equipment and discover how planned support can extend equipment life and improve performance.