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FS-Curtis ML15+ 200G 15HP(2) Duplex Tank Mounted Electric Air Compressor
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FSCurtis
FS-Curtis ML15+ 200G 15HP(2) Duplex Tank Mounted Electric Air Compressor
FS-Curtis ML15+ 200G 15HP(2) Duplex Tank Mounted Electric Air Compressor
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The FS-Curtis ML15+ Duplex represents the pinnacle of heavy-duty reciprocating air compressor technology, combining dual 15HP pumps with a 200-gallon ASME-approved air receiver to deliver 111.6 CFM at 175 PSI. This duplex configuration is purpose-built for facilities with varying demand levels, automatically alternating between pumps during normal operation and running both compressors when your system demands maximum air output. The result? Extended pump life, reduced electrical costs, and zero downtime for maintenance—you'll always have compressed air when you need it most.
Masterline is the most robust, heavy-duty reciprocating air compressor lineup available. The perfect combination of quality components and efficient design make the ML Series rugged, affordable and smart. Because every model is built tough to last a lifetime in demanding working conditions, the ML Series is an outstanding alternative to splash-lubricated reciprocating compressors and small rotary compressors. Choose higher quality. Choose superior durability. Choose ML Series pressure lubricated air compressors.
Duplex Design: Built for Reliability and Efficiency
Duplex compressors are ideal when there are varying demand levels during operation. By alternating demand across two pumps, a duplex compressor also delivers longer pump life. The redundant pumps ensure you'll always have air, eliminating maintenance downtime. The NEMA-1 alternator control panel comes factory-mounted with magnetic motor starters and thermal overload protection, intelligently managing both compressors to optimize performance and longevity.
- Compressors alternate during normal operation to balance wear and extend service life
- Both compressors run simultaneously when system demands peak performance
- Duplex design reduces electrical cost by matching output to demand
- Eliminates downtime—one pump can handle operations while the other is serviced
- Factory oil filled and ready for installation
- 3-position alternator switch for flexible control
- Standard two power source configuration with Premium Efficiency Motors (3-phase only)
Centro-Ring Pressure Lubrication: Patented FS-Curtis Technology
The proprietary Centro-Ring pressure lubrication system is an FS-Curtis exclusive, setting these compressors apart from the competition. This patented design supplies pressurized oil internally to all bearings and critical wear surfaces through rifle-drilled crankshafts and connecting rods, ensuring maximum uptime and dramatically increased service life.
- Proprietary technology found only on FS-Curtis compressors
- Delivers pressurized oil internally to all bearings and critical wear surfaces
- Rifle-drilled crankshaft and connecting rods ensure consistent lubrication
- Helps ensure maximum uptime and dramatically increase service life
100% Cast-Iron Construction Where It Counts
When FS-Curtis says 100% cast-iron, we mean it. Unlike competitors who claim "all cast-iron" yet use aluminum cylinders, cylinder heads, or connecting rods, the ML15+ features genuine cast-iron cylinders, cylinder heads, connecting rods, and crankshaft—all cast-iron where it counts for longer life with less maintenance.
- Some pumps claim 100% cast-iron yet still have aluminum cylinders, cylinder heads, connecting rods and crankshafts – not FS-Curtis
- Ductile cast-iron crankshaft and connecting rods are stronger, more corrosion-resistant and less likely to break
- Slow-turning pump increases pump life and reduces wear
- Rugged parts and construction for true industrial performance
- C89 pump design optimized for continuous duty
Premium Quality Components for 100% Continuous Duty
Every component on the ML15+ Duplex is engineered for demanding industrial environments and continuous operation. From the industry-leading stainless-steel valve assemblies to the oversized main roller bearings, this compressor is built to deliver reliable performance shift after shift, year after year.
- Industry-leading stainless-steel valve assemblies for increased airflow and reliability
- Oversized tapered main roller bearings to ensure long life
- Premium finned intercooler maximizes heat dissipation
- Metal intake filter/silencer—superior to plastic alternatives
- Heavy-duty stamped-steel belt guard for OSHA-approved safety
- Suction valve head unloaders for continuous running air compressors
- Dynamically balanced flywheel for smooth, vibration-free operation
- Slow V-belt drive reduces wear and maintenance
Safety, Convenience, and Control Features
The ML15+ Duplex comes equipped with comprehensive safety and control features, including automatic start-stop control, UL-approved pressure switch, and ASME-approved safety relief valve. The 200-gallon ASME-approved air receiver provides ample air storage for consistent performance, while the tank shut-off valve and manual condensate tank drain valve simplify maintenance.
- Automatic start-stop control for efficient operation
- UL approved pressure switch for reliable pressure management
- ASME approved safety relief valve and discharge valve air service valve
- Dial read-out pressure gauge for easy monitoring
- Magnetic motor starters (60Hz) for smooth starts
- Tank shut-off valve for safe maintenance procedures
- Manual condensate tank drain valve for easy servicing
Key Highlights
- Dual 15HP pumps deliver 111.6 CFM at 175 PSI—ideal for high-demand operations
- 200-gallon ASME-approved tank provides substantial air storage and consistent output
- Duplex configuration eliminates downtime with redundant pumps and automatic alternation
- Patented Centro-Ring pressure lubrication extends pump life far beyond splash-lubricated competitors
- 100% cast-iron cylinders, heads, rods, and crankshaft—not aluminum where it matters most
- Premium Efficiency Motors reduce operating costs and meet modern efficiency standards
- Horizontal configuration with compact footprint: 88" L × 36" W × 64" H
Available Voltages
The ML15+ Duplex is available in multiple three-phase voltage configurations to match your facility's electrical supply:
- 3/60/200-208V — Model: FML15C89D2S-A9L1XX
- 3/60/230V — Model: FML15C89D2S-A3L1XX
- 3/60/460V — Model: FML15C89D2S-A4L1XX
All models feature three-phase power for industrial reliability and efficiency.
See the ML Series in Action
Watch the FS-Curtis Masterline Series in action and see why it's the preferred choice for demanding industrial applications.
Made in USA
Proudly engineered and manufactured in the USA with premium components and rigorous quality control.
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1 Year Factory Warranty extends to 2 years with use of FS-Curtis Maintenance Products. See full Warranty Policy & Procedure Manual