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Process Gas Centrifugal CompressorMSG series featuring oil-free process gas
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Compare Cameron's innovative centrifugal compressor technology
with other compressors, and the advantages are clear.
Cameron’s integrally geared centrifugal compressors represent the latest technologyoffering significant advantages over outdated, less efficient and more costly
compressor designs. These advantages are inherent in the centrifugal design and
enhanced even further by Cameron’s more than 55 years of centrifugal experience.
The Advantages of Centrifugal Compressor Technology
C A M E R O N ’ S C E N T R I F U G A L C O M P R E S S O R S O T H E R C O M P R E S S O R S
• No wearing parts requiring regular replacement
• Oil filter elements and seal gas filter elementsare easily replaced online
• Require regular maintenance and periodic replacement ofpiston rings, gland packing, and valve plates
• Result in high operating expenses and significant machine downtime
• 100% oil free
• Prevent contamination of system
• Meet strict downstream requirements
• Oil filters must be installed at discharge
• Potential for oil carryover that fouls the process
• Oil will pollute process
• Pulsation-free and require no dampers
• Require the use of large pulsation dampers that reduces
pressure fluctuations
• Optional inlet guide vane control plus bypass forconsistent gas delivery under most conditions
• The use of cylinder unloading for stepped flow control canresult in complicated process control due to sudden changesin capacity
• Capable of handling substantially higher volumesof gas in one or two small casings for a smalleroverall package
• Can have four or six cylinders requiring more space for installation
• Additional redundant compressors are typically required
• Essentially vibration-free
• Requires only a pad suitable for supportingthe static weight of the package
• Require large and deep foundations to handle heavy weight
and unbalanced forces• Precaution must be taken to prevent transmission of vibration
to other equipment
LOW MAINTENANCE
OIL-FREE AIR
OPTIMUM CONTROL
COMPACT
INSTALLATION
FOOTPRINT
NO PULSATION
NO VIBRATION
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Oil-Free Process Gas
• Prevents contamination and fouling of your downstream processes
• Eliminates costly waste disposal problems associated with oil-laden condensate
• Eliminates the expense and maintenance requirements of oil removal filters
High Reliability
Cameron’s centrifugal compressors are designed to be reliable
with the following features:
• Conservative high-quality gear design
• Unlimited life pinion bearing design
• Thrust loads absorbed at low speed
• Stainless steel compression elements
• Ability to accept momentary surge conditions
The Lowest Compressor Operating Life Cycle Cost
Cameron’s centrifugal compressors provide lower overall operating costs than
positive displacement or other centrifugal compressors.
• Efficiencies at full load, part load, and no load
• Low maintenance cost
• Increased uptime from high reliability design (limits the need for multiple unit
installations for basic reliability reasons)
• No sliding or rubbing parts in the compression process
Easy Operation/Maintenance
• State-of-the-art controls with a choice of exclusive control systems
• Automatic operation for any operating condition
• Self-diagnostic
• No wearing parts requiring periodic changes or replacement in the
compression elements
• No downstream oil removal filters to clean
• Accessible horizontally split gear box for quick inspection
• Intercooler and aftercooler options allow flexible solutions for even the most
demanding applications
Simple Installation
• Compressor, lubrication system, intercoolers, shaft coupling, coupling guard,
interconnecting piping, and more, on a common base
• Installation on a slab foundation in the shortest possible time
• Easy component accessibility
• Great flexibility to tailor a machine to your needs
• Minimizes floor space required
• Pulsation-free
• Optional variable inlet
guide vanes can offer
power savings up to 9%
• Inlet vanes impart a
whirling motion to the
inlet air flow in the sam
direction as the impeller
operation, reducing the
work input
• Net power savings at
reduced flow or on days
colder than the designe
temperature
• Inlet vanes are positione
close to the impeller to
achieve maximum
benefits
Variable Inlet Guide Valve
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The Right Compressor for Your Needs
No matter what your application, there is a Cameron centrifugal compressor that can meet your requirements. With
over 12,000 installations worldwide, Cameron’s products are proven in a wide variety of industries.
Horizontally Split Gearbox for Easy Maintenance
• Allows inspection or replacement of gears, bearings, and oil
seals by simply lifting a cover
• No disassembly of piping or heat exchangers is necessary
• Periodic inspections and maintenance are made easy
• Minimal maintenance, maximum uptime
Tilting Pad Pinion Bearings for High Reliability
• Five-pad journal bearings have the highest stability and
lowest vibration level for high speed shafts, which are
subjected to variable loading over a wide range
• High reliability over the entire operating range, from full
load to no load
• Pressure lubricated and steel backed for maximum reliability
3R2MSGPB-5G/30 Gas CompressorLocated in Algeria;Used as a boil-off compressorFlow = 20,000 kg/hrDischarge Pressure = 7.3 bar
4R2MSG-3G Gas CompressorLocated in North America;Used in HYCO plantFlow =19,000 kg/hrDischarge Pressure = 47 bar
Five-Pad Tilting Pad Bearing Assembly
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Thrust Collar Design for Improved Reliability
and Efficiency
• Symmetrical design cancels out power-robbing
thrust loads
• Small remaining net thrust transferred by oil wedge
from tapered thrust collar to bull gear
• Net thrust absorbed by low-speed thrust bearing
• Balanced design saves power while maximizing
mechanical integrity
Gas Compressor Applications
• Fuel gas boosters
• Natural gas gathering
• Hydrocarbon refrigeration gas
• Carbon monoxide
• Carbon dioxide (wet or dry)
• SynGas
• Low-molecular weight recycle gas
• High-pressure nitrogen
Cameron’s Centrifugal
Compressors are Superior
by Design
• One, two, or three rotors;
Up to six stages per gear box
• Horizontal splitline(s) for easy
access to parts
• Engineered seal designs
04
01
03
04
02
04
01
01
02
Cross Sectional Viewof a Typical Three-RotorProcess Gas Compressor
01: One, two, or three rotors upto six stages per gear box
02: Horizontal splitline(s) foreasy access to parts
03: Engineered seal designs
04: NACE-compliant scrolls andinlets can be manufacturedfrom steel or stainless steel
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Cameron offers a complete range of seal arrangements
to meet the specific needs of your application.
Babbitted-Style Gas Seals
• Used with high-pressure and nitrogen applications
• When used with educting, these seals have a high
recovery rate
• Knife edges on pinion cut into the babbitt material
on seal for closer fit and low leakage
• Babbitt material has a high tin content for lubricity
• Seal maintenance is not required for five to six years
under normal use
• Ports can be machined in the seal to recover process
gas or buffer the seal during periods of non-use
Carbon Ring Seals
• Cameron’s design has two solid, floating
carbon rings with close shaft clearance
• A non-contacting seal; Periodic maintenance
is not required
• Complete assembly bolts inside the scroll; Is
accessed by removing the impeller
• Leakage control is significantly better than the
babbitt seal for the same pressure
Single or Tandem Dry-Face Seals with
Buffered Backup
• Used on hydrocarbon and process gases
where leakage is not allowed or high-pressure
applications where labyrinth seals cannot provide
enough leakage protection
• Seal system is completely oil-free
• Buffer gas pressure can be set so that no buffer
gas enters the process but a small amount of
process gas vents out of the system
Other Types of Seals
• Oil bushing seal with separate seal oil system
• Custom options available
Seal Design Options
Babbitted Seal
Single Dry-Face Seal
LabyrinthOil Seal
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IMPELLER
PROBE
OIL
SEAL
PINION
BEARING
SCROLL
GEARBOX
VENT PURGE GAS
SEAL GAS ATMOSPHERE
Multiple gas seal designs are available for a wide
range of process gases and leakage requirements.
Cameron can suggest a seal type based on your
process. Additional seal designs are available. All
major seal suppliers can be used.
Cameron’s standard dry-face seal uses a floating
self-centering rider. The clearance fit allows the seal
to be easily removed and installed without puller
tools. The seal comes as a complete assembly with
an installation plate. These drawings show some of
the mechanical details.
IMPELLER
SCROLL
PROBE
PINION
BEARING
OIL
SEAL
SOUR GAS PURGE GAS
RECOVERED GAS(OPTIONAL)
ATMOSPHERE
GEARBOX
IMPELLER
PINION
BEARINGOIL
SEAL
SCROLL
SEAL GASVENT
PURGE
BACKUP
SEAL
GEARBOX
A T M O S P H E R E
PROBE
Gas Seal Options for All Your Process Applications
Multiport Babbitted Seal with Purge
Single Dry-Face Seal with a Babbitted Backup
Tandem Dry-Face Seal with Integral Labyrinth
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Gas seal support systems are designed,
built and tested per API-614 standards.
System designs can be based on
differential pressure control, flow control,
or other methods. The scope of supply
is virtually unlimited. Fully automatic,
manual, or customer-specified systems can
be engineered for any gas seal type.
Systems are designed with instrumentation
to monitor seal condition. Filters and
accessories are supplied with sufficientinstruments to plan maintenance and
minimize downtime. The goal is to save
you time and money by providing worry-
free operation of your equipment and
simple maintenance when required.
Process Gas Seal Support
Gas-Seal Transmitter Rack with Two-of-Three Voting,Seal-Gas Filtering, and Purge-Gas Filtering
Fuel Gas Booster SkidWith Scrubber, Bypass, andRecirculation Piping
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MAESTRO™ PLC-Based Controls
Customer-Defined PLC Controls
PLC-based systems are used for packages with high I/O
counts, multiple gas circuit control loops, and multiple
processes. PLCs by all major industrial suppliers are
available. We can design, program, and supply your
specified PLC system mounted and wired to your
compressor package.
• PLC system is fully tested
by our Control Engineering
department before shipping.
• Logic diagrams and
programming software
are standard.
• Control systems can be
locally mounted on the skid,
designed with local I/O and
remote processors, or any
buyer-defined arrangement.
• Control system enclosures
and wiring are available for
US and IEC applications,
Class II/Zone II, and non-
hazardous installations.
Flow Arrangement
Cameron’s centrifugal compressors feature an
arrangement of flow components. Advantages of this
arrangement include:
• Flow is directed so turbulence-induced frictionis reduced.
• Depending on the application, the flow may be
cooled between stages.
A Better Packaging Concept
Cameron’s cutting-edge packaging concept gives you
flexibility to tailor a centrifugal compressor to your
needs while simplifying installation and maintenance.
Our MSG packages include:
• A lubrication system • Intercoolers
• Shaft coupling • Interstage piping
• Driver • Control panel
We can build standard compressor packages or
specialized API-672/API-617 packages, all on a common
baseplate, sensibly packaged.
Advanced Lubrication System
Cameron’s standard self-contained, low-pressure
lubrication system:• Includes an oil reservoir, mechanical oil pump,
electric full-flow auxiliary oil pump, fixed bundle oil
cooler, single full-flow oil filter, safety devices, and
instrumentation for safe compressor operations
• Is assembled and packaged on a compressor
base frame when compressor and intercooler(s)
layout permits
• Can be sized to serve the main driver
• Can be designed to meet customer specifications:
API-672, API-617, API-614, and Process Industry
Procedures (PIP)
• Includes interconnecting piping between the
lubrication system and compressor when compressor,
intercooler(s), and main oil pump arrangements permit
Intercoolers Guarantee Maximum Heat Transfer
Our ASME-coded intercoolers (European Code, China
Code, Russian Code, Korea Code, and others as required)
provide efficient cooling between stages and aredesigned to be accessible for inspection and cleaning.
• Gas-in-shell or gas-in-tube design can be selected as
dictated by the application.
• Extended surface, plate-fin design provides maximum
heat transfer with minimum space requirements.
• Accessible, smooth bore tubes are easily rodded with
bundles in place.
• No disassembly of any other part of the compressor is
necessary to perform.
Allen-Bradley PLC-BasedControl Center withPanelview Interface
Siemens S7-400 SeriesPLC. IP-54 Enclosure
with Profibus Fiber OpticConnecting Modules
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Cameron’s Aftermarket Services and SupportAdded Quality Assurance
from Advanced Testing
Facilities
To guarantee performance
to both customer and
manufacturer specifications,
every Cameron design is fully
tested for aerodynamic and
mechanical performance by
highly skilled technicians
before leaving the factory.
Nine Test Stands
Our test facility in Buffalo,NY, includes nine test stands.
• The facility contains
variable speed drives to
simulate actual operating
speed and the speed
requirements of the ASME
PTC-10 Type II test.
• The facility offers package
testing of machines up to
11,000 hp (8200 kW).
• Computer-controlled
cooling towers are used
to simulate actual coolant
conditions.
• A test stand lubrication
system supplies machines
with required oil pressure
regardless of the test
speed and monitors oil
conditions for mechanical
loss verification.
Testing Observation and Documentation
Upon request, you can observe testing of your
compressor. Documentation can be provided for
full operating tests to identify capacity, pressure,
temperature, and horsepower. Vibration data for
both steady state and coast down operation is
recorded to verify rotor critical speed and response.
Worldwide Customer Support Organization
Cameron has more than 80 representatives and distributors worldwide to service your
needs wherever your application is located. We keep life cycle records on every unit
we manufacture, enabling us to be a partner with you, now and in the future.
Exceptional Parts
• Genuine parts designed and produced in the same facility for more than 55 years
• Extensive inventory in strategic locations around the world, backed by our standard
OEM guarantee
• Cross-checked against unit maintenance records to ensure accuracy
Technical Support
• Our goal, like yours, is to keep your unit running
• Our technical support is geared to do just that
Installation and Startup
• Concierge preventive maintenance programs
• Diagnostic and troubleshooting services
• Vibration analysis and trending
• Remote monitoring
Repair Expertise
• State-of-the-art-equipment for turnkey repairs• Complete documentation package
• Strategic locations to serve a broad customer base including the US, Italy, Brazil,
Russia, Asia, and the Middle East
Factory Training
• Comprehensive, onsite training seminars for you and your personnel
• Instruction on a variety of topics, including Level II courses offering hands-on training
• Courses can be tailored to your needs at our Buffalo, NY, training center
Multi-Stage Carbon MonoxideCompressor Being Prpeared for
Closed-Loop Testing
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More Green Solutions
In addition to our process gas compressor products, Cameron manufactures a full line of energy efficient and oil-free,
custom-engineered or pre-engineered air and nitrogen centrifugal compressors in a wide variety of capacities and
power ranges.
MSG-25Flow: 50,000 to 90,000 CFM (1416 to 2549 m3 /min)Pressure: up to 115 psi (8 bar)
MSG-2/3Flow: 2500 to 9000 CFM (71 to 255 m3 /min)Pressure: up to 535 psi (37 bar)
MSG-12/14/16/18Flow: 30,000 to 80,000 CFM (850 to 2264 m3 /min)Pressure: up to 485 psi (34 bar)
Multiple ProcessCombination of two or more nitrogen streamsFlow: 5000 to 70,000 CFM (142 to 1980 m3 /min)Pressure: 40 to 650 psi (2.8 to 49 bar)
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©2014 Cameron | MAESTRO is a trademark of Cameron. | CME 06/14 AD01421CC
HSE Policy Statement
At Cameron, we are committed ethically, financially and personally to aworking environment where no one gets hurt and nothing gets harmed.
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X C E L L E N
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C AM E R O N
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PO Box 209
Buffalo, NY 14225-0209
USA
Tel 1 716 896 6600
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USA
Tel 1 281 809 1300
Rua de Assembleia, 98-19˚ andar
Rio de Janeiro
20011-000, RJ
Brazil
Tel 55 21 2172 9650
Goldsmith No. 53, 3° Piso
Col. Polanco
Mexico, D.F. C.P. 11560
Tel 52 55 5580 0296
Europe, Africa, Caspian
and Russia
Via Cantú 8/10
20092 Cinisello Balsamo (MI)
Milan, Italy
Tel 39 02 6129 2010
9 Trekhprudny Lane, Bldg 2
5th Floor
123001
Moscow, Russia
Tel 7 495 225 1818
Asia Pacific and Middle East
Building A-2, Himile Industrial Zone
No. 5655 Kangcheng Road
Gaomi, Shandong 261500
China
Tel 86 536 221 4100
Tower A, Room 1705-1707
Chengjian Dasha
#18 Beitaipingzhuang
Haidian District, Beijing 100088
China
Tel 86 10 8225 5700
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No. 100 YuTong Road
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Singapore 629560
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Tel 65 6494 7600
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Tel 91 20 6792 9100
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PO Box 47280Abu Dhabi, United Arab Emirates
Tel 971 2 596 8400
Learn more about Cameron at:
www.c-a-m.com/cs