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FS-Curtis ML25 240G 25HP(2) Duplex Tank Mounted Electric Air Compressor
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FSCurtis
FS-Curtis ML25 240G 25HP(2) Duplex Tank Mounted Electric Air Compressor
FS-Curtis ML25 240G 25HP(2) Duplex Tank Mounted Electric Air Compressor
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The FS-Curtis ML25 Duplex delivers 164.8 CFM at 175 PSI from dual 25 HP motors paired with industrial-grade C98 pumps, all mounted on a robust 240-gallon ASME-approved horizontal tank. Designed for facilities with varying demand levels, this duplex configuration provides intelligent alternation between two pumps to maximize efficiency, extend service life, and guarantee uninterrupted air supply. When one pump is sufficient, the system operates economically on a single compressor. When demand peaks, both compressors kick in automatically to deliver the full airflow you need. This redundant design eliminates costly downtime during maintenance while reducing electrical costs during lighter load periods.
The FS-Curtis 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.
Centro-Ring Pressure Lubrication – Patented FS-Curtis Design
Proprietary Centro-Ring technology is an FS-Curtis exclusive that supplies pressurized oil internally to all bearings and critical wear surfaces through the rifle-drilled crankshaft and connecting rods. This advanced lubrication system helps ensure maximum uptime and dramatically increases service life compared to splash-lubricated designs. Your compressor runs cooler, quieter, and longer with minimal maintenance intervention.
100% Cast-Iron Construction Where It Counts
All cast-iron cylinders, cylinder heads, connecting rods, and crankshaft deliver 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. The ductile cast-iron crankshaft and connecting rods are stronger, more corrosion-resistant, and less likely to break under heavy continuous use. Combined with a slow-turning pump design, this rugged parts and construction deliver true industrial performance built for 100% continuous duty.
Premium Quality Components Throughout
Every ML25 Duplex is engineered with industry-leading components designed for demanding commercial and industrial environments:
- Industry-leading stainless-steel valve assemblies for increased airflow and reliability
- Oversized tapered main roller bearings to ensure long service life
- Premium finned intercooler maximizes heat dissipation for consistent performance
- Metal intake filter/silencer is superior to plastic alternatives
- Heavy-duty stamped-steel belt guard (OSHA approved, totally enclosed)
- Suction valve head unloaders for continuous running air compressors
- Dynamically balanced flywheel ensures smooth, vibration-free operation
- Slow V-belt drive reduces wear and extends component life
Duplex Design Advantages
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.
- Alternator control panel comes mounted with magnetic motor starters and thermal overload protection
- Compressors alternate during normal operation to balance run hours and wear
- Both compressors run when system demands exceed single-pump capacity
- Duplex design reduces electrical cost and eliminates downtime
- Factory oil filled and ready for operation
Factory Equipped & Ready to Install
Your ML25 Duplex arrives factory oil filled and ready for installation with professional-grade controls and safety features:
- Magnetic motor starters (60Hz) for reliable, heavy-duty switching
- Automatic Start-Stop control for hands-free operation
- ASME approved 240-gallon air receiver tank with manual condensate drain valve
- Dial read-out pressure gauge for instant pressure monitoring
- UL approved pressure switch for safe, code-compliant control
- 3-position alternator switch for manual or automatic pump selection
- ASME approved safety relief valve and discharge valve air service valve
- NEMA-1 alternator control panel with standard two power source
- Premium Efficiency Motors (3-phase only) for reduced energy costs
- Tank shut-off valve for safe maintenance and isolation
Available Voltages
Three Phase configurations available:
- 3/60/200-208V – Model FML25C98D4S-A9L1XX
- 3/60/230V – Model FML25C98D4S-A3L1XX
- 3/60/460V – Model FML25C98D4S-A4L1XX
Key Performance Highlights
- 164.8 CFM at 175 PSI – Industrial airflow from dual 25 HP motors and C98 pumps
- 240-gallon ASME-approved horizontal tank – Provides substantial air storage and consistent delivery
- Duplex intelligent alternation – Automatically balances load, extends pump life, eliminates downtime
- Centro-Ring pressure lubrication – Patented FS-Curtis technology maximizes component life
- 100% cast-iron construction – All cylinders, heads, rods, and crankshaft for ultimate durability
Looking for full specifications and features?
Check out the Product Specifications and Product Features tabs
above for complete specs, dimensions, and detailed feature breakdowns.
See the FS-Curtis ML Series in Action
1 Year Factory Warranty extends to 2 years with use of FS-Curtis Maintenance Products. See full Warranty Policy & Procedure Manual