Features and Benefits
Simple Installation
Compressor, lubrication system, intercoolers, shaft coupling, coupling guard and the interconnecting piping all are on a common base, simplifying installation and startup.
Low Operating Cycle Cost
Compared to other machines of similar capacity, MSG® and TURBO-AIR® compressors are highly efficient oil-free compressors at full load, part load and no load. The power savings delivered can significantly speed up payback on your initial investment, and the savings continue to build the more you use an MSG®/TURBO-AIR® centrifugal compressor.
High Reliability
- Thrust loads absorbed at low speed
- Stainless steel compression elements
- Conservative, high-quality gear design
- Extended life pinion bearing design
- Non-contacting air and oil seals
Simple Operation and Maintenance
- State-of-the-art controls
- Total automatic operation for any operating condition
- Self-diagnostics
- Compression elements do not wear or require periodic replacement
- No oil removal filters to clean
ISO Certified Class Zero
Our MSG® and TURBO-AIR® centrifugal compressor product line has been engineered to produce oil-free air for more than 60 years. This certification officially acknowledges the ability of our compressors to produce 100% oil-free air, providing our customers with enhanced quality assurance.
API 672 Custom Centrifugal Air Compressor Packages
We have a long-standing tradition of providing innovative products and technology that positively affect our customers’ bottom line. Following this tradition, the API 672 Custom MSG® TURBO-AIR® product lines have been developed through close interaction with our customer base and analysis of their individual application demands.
MSG® and TURBO-AIR® product lines provide class-leading levels of performance and reliability while meeting the following specifications:
- API 672 for packaged, integrally geared centrifugal compressors for petroleum, chemical and gas industry services
- API 614 for lubrication systems
- API 670 for machinery protection systems
- API 671 for coupling systems
You can rest assured knowing that our API product line, like all of our products, is supported by our global aftermarket service and support network.

Compressor Design

Our API engineering team has provided the MSG® and TURBOAIR® API product line with a variety of available options and additional systems in order to customize the final product. Our goal is to meet demanding API 672 requirements with as few deviations as possible. Our MSG® and TURBO-AIR® compressors are packaged on a common base for easier installation and are available in a number of capacities.
An “All-In-One” Package Solution
Supplied as a complete and compact package with less weight and less floor space, simplifying installation, operation and maintenance.

- Horizontally Split Gearbox
Allows for easier inspection and maintenance of the working parts in the field.
2. Inlet System
Available with pre-filtration upgradable to a pulse jet configuration to ensure long reliability.
3. Dedicated Drive
Custom electric motor drive or steam turbine drives are available in compliance with demanding projects specs. API 671 coupling available as an option.
4. Inlet Guide Vanes (IGV)
- Can offer power savings of up to 9% when operating in turndown.
- Positioned close to inducer of the impeller to maximize performance.
- Net power savings can be realized at reduced flow or on days colder than the design temperature
5. Coolers
Designed for high corrosion resistance and high cooling efficiency – decreasing pressure losses and leakages while increasing energy savings.
6. Complete Lubrication System
Supplied on an integrated frame according to API 614
7. Flanged Coolant Manifold
Provides simple connections for coolant supply and return.
8. Instrumentation and Controls
Inherent variable load capability without high maintenance.
Specifications
Specification | Metric | Imperial |
Standard Input Power | 93 to 2237 kW | 125 to 3000 hp |
Discharge Pressure | 3.5 to 14.5 barg | 50 to 210 psig |
Inlet Flow | 14.3 to 430 m3/min | 505 to 15,200 CFM |
Maintenance & Parts
- Exceptional Parts
- Installation and Startup
- Repair Expertise
- Factory Training
- Controls Retrofits
- Smart Product Upgrades
- MAESTRO Universal Centrifugal Compressor






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