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LS 25S Series - Rotary Screw Air Compressors

Sullair Single-Stage air compressors use a rugged, time-proven design for optimum performance with minimal maintenance. Featuring the proven Sullair air end, you can count on the Sullair Single-Stage for reliable continuous-duty performance.

  • Broad Operating Range
  • Superior Package Design
  • Premium Efficient Motor
  • 250 – 350 HP, 1075 – 1615 cfm, 100 – 125 psig
  • High-Performance, Energy-Efficient Design
  • Supervisor Microprocessor Controller
  • Legendary Sullair Air End
  • 10-Year Air End Warranty
  • 5-Year Warranty covering the motor, coolers, and air/fluid vessel
  • 10,000-hour Genuine Sullube factory fill lubricant
  • Standard Features: TEFC motors, Y-Delta Starter, NEMA 4 Electricals, Sound Dampening Enclosure, Stainless Steel Control Lines, Phase Monitor Relay, Sequencing, Zero Loss Drain
  • Air Cooled or Water Cooled

Flow

1075 – 1615 cfm

30.4 - 45.7 m³/min

Pressure

100 – 125 psi

7 - 9 bar

Power

250 – 350 hp

186 – 261 kw

Features & Benefits

  • Superior Package Design
    • SAE O-ring fittings
    • Number of fittings reduced
    • Aftercooler
      • Moisture separator
      • Electric drain
  • Variable Capacity Sullair Air End
    • Legendary Sullair Air End
    • Spiral Valve Technology
      • Matches output to demand
      • Stabilizes system pressure
      • Minimizes need for air receiver
      • Extends package life
  • Cooling Options
    • Air-cooled
      • Uses updraft coolers
        • Easy installation
        • Heat recovery capabilities
    • Water-cooled
      • Uses shell and tube heat exchanger
  • Flange-Mounted Motor and Air End*
    • Up to 5% energy savings over belt drive
    • Eliminates maintenance expense associated with V-belts
  • Premium Efficient Motor
    • Direct coupled design for extended bearing life
    • 250,000-hour insulation life
  • Sullair Supervisor™ Microprocessor Controller
  • Multi-Stage Air-Fluid Separation
    • Dual nested Optimizer™ separator elements
      • Reduce fluid carry-over to less than 1 ppm as measured prior to aftercooler
      • Helps lower fluid costs
  • Optimalair® Inlet Filter
    • Includes remote air intake connection
    • Fine Fiber Technology—0.4 microns
  • Fiberglass Fluid Filter
    • Aircraft-quality media provides better filtration
    • Up to 20% more efficient than conventional paper elements
  • Bearing Fluid Reservoirs
    • Ensures fluid is available at start-up
    • Extends air life
  • Genuine Sullube®
    • 10,000-hour extended-life synthetic fluid

* Not standard on LS-25S

Options

  • PristineFG™ Food Grade Compressor fluid
  • Variable Speed Drive
  • Spiral Valve Technology
  • Sound Attenuating Enclosure

Models & Specs

Available models

60 HZ

CONSTANT SPEED DRIVE
FULL-LOAD CAPACITY*

  • LS-25S-250—250 hp (186 kW), 1075 to 1218 acfm (30.4 to 34.4 m³/min), 100 to 125 psi (7 to 9 bar)
  • LS-25S-300—300 hp (224 kW), 1330 to 1480 acfm (37.6 to 41.9 m³/min), 100 to 125 psi (7 to 9 bar)
  • LS-25S-350—​​​​​​350 hp (261 kW), 1460 to 1615 acfm (41.3 to 45.7 m³/min), 100 to 125 psi (7 to 9 bar)

CONSTANT SPEED DRIVE WITH VARIABLE CAPACITY CONTROL
FULL-LOAD CAPACITY*

  • VCC-25S-250—250 hp (186 kW), 1075 to 1218 acfm (30.4 to 34.4 m³/min), 100 to 125 psi (7 to 9 bar)
  • VCC-25S-300—300 hp (224 kW), 1330 to 1480 acfm (37.6 to 41.9 m³/min), 100 to 125 psi (7 to 9 bar)
  • VCC-25S-350—​​​​​​350 hp (261 kW), 1460 to 1615 acfm (41.3 to 45.7 m³/min), 100 to 125 psi (7 to 9 bar)

VARIABLE SPEED DRIVE
FULL-LOAD CAPACITY WITH VARIABLE CAPACITY CONTROL*

  • V-250S-250—250 hp (186 kW), 1085 to 1195 acfm (30.7 to 33.8 m³/min), 100 to 125 psi (7 to 9 bar)
  • V-250S-300—300 hp (224 kW), 1305 to 1400 acfm (36.9 to 39.6 m³/min), 100 to 125 psi (7 to 9 bar)
  • V-250S-350—​​​​​​350 hp (261 kW), 1435 to 1580 acfm (40.6 to 44.7 m³/min), 100 to 125 psi (7 to 9 bar)

50 HZ

CONSTANT SPEED DRIVE
FULL-LOAD CAPACITY*

  • LS-25S-200—200 hp (160 kW), 795 to 1010 acfm (22.5 to 28.6 m³/min), 100 to 150 psi (7 to 10 bar)
  • LS-25S-250—250 hp (186 kW),  980 to 1225 acfm (27.7 to 34.7 m³/min), 100 to 150 psi (7 to 10 bar)
  • LS-25S-300—300 hp (224 kW), 1305 to 1452 acfm (36.9 to 41.1 m³/min), 100 to 150 psi (7 to 10 bar)
  • LS-25S-350—​​​​​​350 hp (261 kW), 1438 to 1563 acfm (40.7 to 44.2 m³/min), 100 to 125 psi (7 to 9 bar)

CONSTANT SPEED DRIVE WITH VARIABLE CAPACITY CONTROL
FULL-LOAD CAPACITY*

  • VCC-250S-200—200 hp (160 kW), 1010 acfm (28.6 m³/min), 100 psi (7 bar)

* Capacity per CAGI / PNEUROP PN2CPTC2 (Annex C to ISO 1217)

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