Oil-free compression rotary screw compressors with integrated compressed air dryer


i.HOC – Outstandingly efficient compressed air drying

The patented i.HOC rotary dryer from Kaeser uses up to 100% of compressor heat! Thanks to full-flow regeneration, it delivers reliable pressure dew points up to an ambient temperature of 115°F – completely without electrical heating or additional cooling of the regeneration air!

  • Installed in air-cooled or water-cooled units
  • Unit rated power from 50 to 450 hp
  • Unit flow rates from 142 to 1790 cfm
  • Integrated SIGMA CONTROL 2 compressor controller
  • Also available with variable speed control and frequency converter (SFC models)

Your advantages

  • Sub-zero pressure dew points even in high ambient temperatures:
    Thanks to its extraordinary regeneration potential, the i.HOC delivers below-zero pressure dew points even with high cooling medium temperatures.
  • Pressure dew point stability even with variable flow rates:
    The pressure dew point remains stable even with low compressor load – no partial-load compensation required.
  • Effective drying AND heat recovery:
    i.HOC uses the heat exchangers of the second compression stage, which have been optimized for heat recovery, as regeneration air coolers.

Benefits of full-flow regeneration

i.HOC with KAESER full-flow regeneration
□ Full-flow regeneration □ Partial-flow regeneration
↓ Regeneration area: Hot air removes moisture from the desiccant.
↑ Drying area: Moisture is drawn into the desiccant from the cold air.

The i.HOC (Integrated Heat of Compression Dryer) uses 100% of the heat of compression from the second compressor stage for drying purposes (full-flow regeneration). This heat, which is produced in any case, is therefore effectively available at zero cost.

  • No additional energy input for the drying process
  • Higher regeneration potential than dryers with partial-flow regeneration
  • Full performance, even at low compressor load

The advantages of full-flow regeneration become particularly evident at increased cooling medium temperatures. KAESER rotation dryers achieve outstanding drying results, even without additional electrical heating of the regeneration air.

 

The oil-free compression rotary screw compressors with integrated i.HOC or refrigerated dryer in detail

Dryer technology options

Integrated refrigerated dryer (CSG series)

Even for oil-free rotary screw compressors, refrigerated dryers are the cost-effective choice for delivering the best possible energy efficiency when requiring pressure dew points to 38 °F. Pressure dew points below 38 °F require desiccant dryers.

Integrated i.HOC® drum dryer

The optional i.HOC® integrated drum dryer reliably and efficiently achieves pressure dew points as low as -22 °F. The hot compressed air from the second compression stage is used to regenerate the desiccant.

i.HOC® superior full-flow regeneration
i.HOC with KAESER full-flow regeneration
□ Full-flow regeneration □ Partial-flow regeneration
↓ Regeneration area: Hot air removes moisture from the desiccant.
↑ Drying area: Moisture is drawn into the desiccant from the cold air.

The i.HOC® (Integrated Heat of Compression Dryer) system uses 100 % of the heat of compression from the second compression stage for drying purposes (full-flow regeneration). This heat is produced and available for use at zero cost.

  • No additional energy input for the drying process
  • Higher regeneration potential than with partial-flow regeneration dryers
  • Full performance, even with low compressor load

The advantages of full-flow regeneration are clear—especially with increased coolant temperatures. Kaeser drum dryers achieve outstanding drying results even without additional heating of the regeneration air.

Integrated refrigerated dryer

Energy-saving drying

Integrated design, together with the generously-dimensioned aluminum block heat exchanger, helps ensure minimal pressure loss of less than 1.5 psi. The energy-saving scroll refrigerant compressor helps to achieve additional compressed air energy savings.

CSG oil-free compression rotary screw compressor with add-on dryer

Excellent accessibility

All refrigerated dryer components are perfectly accessible via the service door on the front of the unit. Dryer service and maintenance work is therefore a breeze.

What's on the inside
i.HOC rotation dryer installation diagram
  1. Regeneration air inlet
  2. Regeneration air discharge
  3. Condensate separator
  4. Radial fan
  5. Axial cylinder motor
Detailed look at i.HOC®
i.HOC – Cross-section and components
  1. Regeneration air inlet
  2. Drum (silica gel desiccant)
  3. Regeneration air discharge
  4. Heat exchanger stage 2
  5. External condensate separator
  6. Radial fan
  7. Demister (droplet separator)
  8. Rotation dryer outlet
  9. Axial cylinder motor
  10. Pressure dew point sensor (optional)
Technical specifications CSG-2 A

Standard version

ModelCSG 55-2 A CSG 70-2 A CSG 90-2 A
Working pressure psi 90 125 60 90 125 60 90 125 145
Flow rate complete system at working pressure acfm 247 192 344 298 245 390 342 296 273
Max. positive pressure psi 90 125 60 90 125 60 90 125 145
Nominal motor output hp 50 60 75
Dimensions
W x D x H in 		98 x 65 x 85 98 x 65 x 85 98 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 73 73 74
Weight lb 5,004 5,093 5,236

ModelCSG 120-2 A CSG 130-2 A
Working pressure psi 60 90 125 145 125 145
Flow rate complete system at working pressure acfm 461 459 421 420 457 456
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 100 125
Dimensions
W x D x H in 		98 x 65 x 85 98 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 75 76
Weight lb 5,545 5,820

T version

ModelCSG 55-2 T A CSG 70-2 T A CSG 90-2 T A
Working pressure psi 90 125 60 90 125 60 90 125 145
Flow rate complete system at working pressure acfm 247 192 344 298 245 390 342 296 273
Max. positive pressure psi 90 125 60 90 125 60 90 125 145
Nominal motor output hp 50 60 75
Pressure dew point °F 37 37 37
Refrigerated dryerABT 130 ABT 130 ABT 130
Dimensions
W x D x H in 		112 x 65 x 85 112 x 65 x 85 112 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 73 73 74
Weight lb 5,556 5,644 5,787

ModelCSG 120-2 T A CSG 130-2 T A
Working pressure psi 125 145 125 145
Flow rate complete system at working pressure acfm 421 420 457 456
Max. positive pressure psi 125 145 125 145
Nominal motor output hp 100 125
Pressure dew point °F 37 37
Refrigerated dryerABT 130 ABT 130
Dimensions
W x D x H in 		112 x 65 x 85 112 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 75 76
Weight lb 6,096 6,371

SFC version

ModelCSG 70-2 SFC A CSG 90-2 SFC A CSG 120-2 SFC A
Working pressure psi 60 90 125 60 90 125 60 90 125 145
Flow rate complete system at working pressure acfm 99 - 337 111 - 297 126 - 250 117 - 412 114 - 374 126 - 321 141 - 472 161 - 470 147 - 431 170 - 404
Max. positive pressure psi 131 90 131 115 145
Nominal motor output hp 75 75 100
Dimensions
W x D x H in 		98 x 65 x 85 98 x 65 x 85 98 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 73 75 76
Weight lb 5,203 5,203 5,291

ModelCSG 130-2 SFC A
Working pressure psi 60 90 125 145
Flow rate complete system at working pressure acfm 150 - 477 165 - 476 183 - 474 193 - 473
Max. positive pressure psi 145
Nominal motor output hp 125
Dimensions
W x D x H in 		98 x 65 x 85
Compressed air connection2½ ANSI class 150
Sound pressure level dB(A) 76
Weight lb 5,467

T-SFC version

ModelCSG 70-2 T SFC A CSG 90-2 T SFC A CSG 120-2 T SFC A
Working pressure psi 60 90 125 60 90 125 90 125 145
Flow rate complete system at working pressure acfm 99 - 337 111 - 297 126 - 250 117 - 412 114 - 374 126 - 321 161 - 470 147 - 431 170 - 404
Max. positive pressure psi 131 90 131 115 145
Nominal motor output hp 75 75 100
Pressure dew point °F 37 37 37
Refrigerated dryer
Dimensions
W x D x H in 		112 x 65 x 85 112 x 65 x 85 112 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 73 75 76
Weight lb 5,754 5,754 5,842

ModelCSG 130-2 T SFC A
Working pressure psi 90 125 145
Flow rate complete system at working pressure acfm 165 - 476 183 - 474 193 - 473
Max. positive pressure psi 145
Nominal motor output hp 125
Pressure dew point °F 37
Refrigerated dryer
Dimensions
W x D x H in 		112 x 65 x 85
Compressed air connection2½ ANSI class 150
Sound pressure level dB(A) 76
Weight lb 6,019

RD version

ModelCSG 55-2 i.HOC A CSG 70-2 i.HOC A CSG 90-2 i.HOCA
Working pressure psi 90 125 90 125 90 125 145
Flow rate complete system at working pressure acfm 247 192 298 245 342 296 273
Max. positive pressure psi 90 125 90 125 90 125 145
Nominal motor output hp 50 60 75
Pressure dew point °F -22 -34 -18 -32 -14 -29 -32
Dimensions
W x D x H in 		124 x 65 x 85 124 x 65 x 85 124 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 73 73 74
Weight lb 6,581 6,669 6,812

ModelCSG 120-2 i.HOC A CSG 130-2 i.HOC A
Working pressure psi 90 125 145 125 145
Flow rate complete system at working pressure acfm 459 421 420 457 456
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 100 125
Pressure dew point °F -5 -23 -26 -21 -25
Dimensions
W x D x H in 		124 x 65 x 85 124 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 75 76
Weight lb 7,121 7,397

RD SFC version

ModelCSG 70-2 i.HOC SFC A CSG 90-2 i.HOC SFC A CSG 120-2 i.HOC SFC A
Working pressure psi 90 125 90 125 90 125 145
Flow rate complete system at working pressure acfm 111 - 297 126 - 250 114 - 374 126 - 321 161 - 470 147 - 431 170 - 404
Max. positive pressure psi 131 90 131 115 145
Nominal motor output hp 75 75 100
Pressure dew point °F -18 -31 -12 -28 -5 -22 -27
Dimensions
W x D x H in 		124 x 65 x 85 124 x 65 x 85 124 x 65 x 85
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 73 75 76
Weight lb 6,790 6,790 6,878

ModelCSG 130-2 i.HOC SFC A
Working pressure psi 90 125 145
Flow rate complete system at working pressure acfm 165 - 476 183 - 474 193 - 473
Max. positive pressure psi 145
Nominal motor output hp 125
Pressure dew point °F -4 -20 -24
Dimensions
W x D x H in 		124 x 65 x 85
Compressed air connection2½ ANSI class 150
Sound pressure level dB(A) 76
Weight lb 7,055

Add-on refrigerated dryer

ModelABT 130
Power consumption2.4
Pressure dew point °F 37
RefrigerantR-513A
Global warming potential — 631
Refrigerant volume lb 3.3
Refrigerant mass as CO2 equivalent t 0.9
Hermetic refrigeration circuit-

Technical specifications CSG-2 W

Standard version

ModelCSG 55-2 W CSG 70-2 W CSG 90-2 W
Working pressure psi 90 125 60 90 125 60 90 125 145
Flow rate complete system at working pressure acfm 253 198 350 304 251 396 348 302 278
Max. positive pressure psi 90 125 60 90 125 60 90 125 145
Nominal motor output hp 50 60 75
Dimensions
W x D x H in 		98 x 65 x 77 98 x 65 x 77 98 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 65 65 66
Weight lb 5,004 5,093 5,236

ModelCSG 120-2 W CSG 130-2 W
Working pressure psi 60 90 125 145 125 145
Flow rate complete system at working pressure acfm 465 464 426 462 461
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 100 125
Dimensions
W x D x H in 		98 x 65 x 77 98 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 67 69
Weight lb 5,545 5,820

T version

ModelCSG 55-2 T W CSG 70-2 T W CSG 90-2 T W
Working pressure psi 90 125 60 90 125 60 90 125 145
Flow rate complete system at working pressure acfm 253 198 350 304 251 396 348 302 278
Max. positive pressure psi 90 125 60 90 125 60 90 125 145
Nominal motor output hp 50 60 75
Pressure dew point °F 37 37 37
Refrigerated dryerABT 130 ABT 130 ABT 130
Dimensions
W x D x H in 		112 x 65 x 77 112 x 65 x 77 112 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 65 65 66
Weight lb 5,556 5,644 5,787

ModelCSG 120-2 T W CSG 130-2 T W
Working pressure psi 125 145 125 145
Flow rate complete system at working pressure acfm 426 462 461
Max. positive pressure psi 125 145 125 145
Nominal motor output hp 100 125
Pressure dew point °F 37 37
Refrigerated dryerABT 130 ABT 130
Dimensions
W x D x H in 		112 x 65 x 77 112 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 67 69
Weight lb 6,096 6,371

SFC version

ModelCSG 70-2 SFC W CSG 90-2 SFC W CSG 120-2 SFC W
Working pressure psi 60 90 125 145 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 107 - 346 107 - 307 114 - 263 131 - 238 124 - 417 128 - 385 137 - 334 140 - 309 148 - 472 146 - 471 146 - 450 149 - 424
Max. positive pressure psi 145 90 145 145
Nominal motor output hp 75 75 100
Dimensions
W x D x H in 		98 x 65 x 77 98 x 65 x 77 98 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 65 67 68
Weight lb 5,203 5,203 5,291

ModelCSG 130-2 SFC W
Working pressure psi 60 90 125 145
Flow rate complete system at working pressure acfm 155 - 482 153 - 480 150 - 479 148 - 478
Max. positive pressure psi 145
Nominal motor output hp 125
Dimensions
W x D x H in 		98 x 65 x 77
Compressed air connection2½ ANSI class 150
Sound pressure level dB(A) 69
Weight lb 5,467

T-SFC version

ModelCSG 70-2 T SFC W CSG 90-2 T SFC W CSG 120-2 T SFC W
Working pressure psi 60 90 125 145 60 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 107 - 346 107 - 307 114 - 263 131 - 238 124 - 417 128 - 385 137 - 334 140 - 309 146 - 471 146 - 450 149 - 424
Max. positive pressure psi 145 90 145 145
Nominal motor output hp 75 75 100
Pressure dew point °F 37 37 37
Refrigerated dryer
Dimensions
W x D x H in 		112 x 65 x 77 112 x 65 x 77 112 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 65 67 68
Weight lb 5,754 5,754 5,842

ModelCSG 130-2 T SFC W
Working pressure psi 90 125 145
Flow rate complete system at working pressure acfm 153 - 480 150 - 479 148 - 478
Max. positive pressure psi 145
Nominal motor output hp 125
Pressure dew point °F 37
Refrigerated dryer
Dimensions
W x D x H in 		112 x 65 x 77
Compressed air connection2½ ANSI class 150
Sound pressure level dB(A) 69
Weight lb 6,019

RD version

ModelCSG 55-2 i.HOC W CSG 70-2 i.HOC W CSG 90-2 i.HOC W
Working pressure psi 90 125 90 125 90 125 145
Flow rate complete system at working pressure acfm 253 198 304 251 348 302 278
Max. positive pressure psi 90 125 90 125 90 125 145
Nominal motor output hp 50 60 75
Pressure dew point °F -15 -30 -13 -28 -11 -27 -31
Dimensions
W x D x H in 		124 x 65 x 77 124 x 65 x 77 124 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 65 65 66
Weight lb 6,581 6,669 6,812

ModelCSG 120-2 i.HOC W CSG 130-2 i.HOC W
Working pressure psi 90 125 145 125 145
Flow rate complete system at working pressure acfm 464 426 462 461
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 100 125
Pressure dew point °F -5 -23 -28 -22 -27
Dimensions
W x D x H in 		124 x 65 x 77 124 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 67 69
Weight lb 7,121 7,397

RD SFC version

ModelCSG 70-2 i.HOC SFC W CSG 90-2 i.HOC SFC W CSG 120-2 i.HOC SFC W
Working pressure psi 90 125 145 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 107 - 307 114 - 263 131 - 238 128 - 385 137 - 334 140 - 309 146 - 471 146 - 450 149 - 424
Max. positive pressure psi 145 90 145 145
Nominal motor output hp 75 75 100
Pressure dew point °F -13 -28 -32 -9 -26 -30 -6 -22 -28
Dimensions
W x D x H in 		124 x 65 x 77 124 x 65 x 77 124 x 65 x 77
Compressed air connection2½ ANSI class 150 2½ ANSI class 150 2½ ANSI class 150
Sound pressure level dB(A) 65 67 68
Weight lb 6,790 6,790 6,878

ModelCSG 130-2 i.HOC SFC W
Working pressure psi 90 125 145
Flow rate complete system at working pressure acfm 153 - 480 150 - 479 148 - 478
Max. positive pressure psi 145
Nominal motor output hp 125
Pressure dew point °F -6 -22 -26
Dimensions
W x D x H in 		124 x 65 x 77
Compressed air connection2½ ANSI class 150
Sound pressure level dB(A) 69
Weight lb 7,055

Add-on refrigerated dryer

ModelABT 130
Power consumption2.4
Pressure dew point °F 37
RefrigerantR-513A
Global warming potential — 631
Refrigerant volume lb 3.3
Refrigerant mass as CO2 equivalent t 0.9
Hermetic refrigeration circuit-

Technical specifications DSG-2 A

Standard version

ModelDSG 140-2 A DSG 180-2 A DSG 220-2 A
Working pressure psi 90 125 145 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 579 576 512 821 692 689 576 910 819 780 689
Max. positive pressure psi 125 145 60 125 145 60 90 125 145
Nominal motor output hp 125 150 175
Dimensions
W x D x H in 		135 x 69 x 94 135 x 69 x 94 135 x 69 x 94
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 80 81 81
Weight lb 7,496 7,826 8,047

ModelDSG 260-2 A DSG 290-2 A
Working pressure psi 60 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 966 964 908 816 963 961
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 200 250
Dimensions
W x D x H in 		135 x 69 x 94 135 x 69 x 94
Compressed air connection3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 82 84
Weight lb 8,378 8,818

SFC version

ModelDSG 180-2 SFC A DSG 220-2 SFC A DSG 260-2 SFC A
Working pressure psi 60 90 125 145 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 305 - 795 332 - 761 312 - 665 337 - 615 274 - 823 295 - 821 320 - 773 378 - 737 305 - 967 330 - 966 347 - 911 364 - 858
Max. positive pressure psi 100 145 125 145 110 145
Nominal motor output hp 150 175 200
Dimensions
W x D x H in 		135 x 69 x 94 135 x 69 x 94 135 x 69 x 94
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 81 81 82
Weight lb 9,149 9,370 9,700

ModelDSG 290-2 SFC A
Working pressure psi 60 90 125 145
Flow rate complete system at working pressure acfm 323 - 1,061 367 - 1,060 418 - 1,058 447 - 1,057
Max. positive pressure psi 145
Nominal motor output hp 250
Dimensions
W x D x H in 		135 x 69 x 94
Compressed air connection3 ANSI class 150
Sound pressure level dB(A) 84
Weight lb 10,141

RD version

ModelDSG 140-2 i.HOC A DSG 180-2 i.HOC A DSG 220-2 i.HOC A
Working pressure psi 90 125 145 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 579 576 512 692 689 576 819 780 689
Max. positive pressure psi 125 145 125 145 90 125 145
Nominal motor output hp 125 150 175
Pressure dew point °F -18 -30 -33 -17 -29 -32 -16 -28 -31
Dimensions
W x D x H in 		168 x 69 x 94 168 x 69 x 94 168 x 69 x 94
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 80 81 81
Weight lb 9,921 10,251 10,472

ModelDSG 260-2 i.HOC A DSG 290-2 i.HOC A
Working pressure psi 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 964 908 816 963 961
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 200 250
Pressure dew point °F -14 -26 -29 -14 -26 -28
Dimensions
W x D x H in 		168 x 69 x 94 168 x 69 x 94
Compressed air connection3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 82 84
Weight lb 10,803 11,244

RD SFC version

ModelDSG 180-2 i.HOC SFC A DSG 220-2 i.HOC SFC A DSG 260-2 i.HOC SFC A
Working pressure psi 90 125 145 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 332 - 761 312 - 665 337 - 615 295 - 821 320 - 773 378 - 737 330 - 966 347 - 911 364 - 858
Max. positive pressure psi 100 145 125 145 110 145
Nominal motor output hp 150 175 200
Pressure dew point °F -17 -29 -32 -16 -28 -30 -14 -26 -29
Dimensions
W x D x H in 		168 x 69 x 94 168 x 69 x 94 168 x 69 x 94
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 81 81 82
Weight lb 11,574 11,795 12,125

ModelDSG 290-2 i.HOC SFC A
Working pressure psi 90 125 145
Flow rate complete system at working pressure acfm 367 - 1,060 418 - 1,058 447 - 1,057
Max. positive pressure psi 145
Nominal motor output hp 250
Pressure dew point °F -12 -24 -26
Dimensions
W x D x H in 		168 x 69 x 94
Compressed air connection3 ANSI class 150
Sound pressure level dB(A) 84
Weight lb 12,566

Technical specifications DSG-2 W

Standard version

ModelDSG 140-2 W DSG 180-2 W DSG 220-2 W
Working pressure psi 90 125 145 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 579 576 512 821 692 689 576 910 819 780 689
Max. positive pressure psi 125 145 60 125 145 60 90 125 145
Nominal motor output hp 125 150 175
Dimensions
W x D x H in 		135 x 69 x 81 135 x 69 x 81 135 x 69 x 81
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 69 70 71
Weight lb 6,834 7,165 7,385

ModelDSG 260-2 W DSG 290-2 W
Working pressure psi 60 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 966 964 908 816 963 961
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 200 250
Dimensions
W x D x H in 		135 x 69 x 81 135 x 69 x 81
Compressed air connection3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 74 75
Weight lb 7,716 8,157

SFC version

ModelDSG 180-2 SFC W DSG 220-2 SFC W DSG 260-2 SFC W
Working pressure psi 60 90 125 145 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 305 - 795 332 - 761 312 - 665 337 - 615 274 - 823 295 - 821 320 - 773 378 - 737 305 - 967 330 - 966 347 - 911 364 - 858
Max. positive pressure psi 100 145 125 145 110 145
Nominal motor output hp 150 175 200
Dimensions
W x D x H in 		135 x 69 x 81 135 x 69 x 81 135 x 69 x 81
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 71 72 75
Weight lb 8,488 8,708 9,039

ModelDSG 290-2 SFC W
Working pressure psi 60 90 125 145
Flow rate complete system at working pressure acfm 323 - 1,061 367 - 1,060 418 - 1,058 447 - 1,057
Max. positive pressure psi 145
Nominal motor output hp 250
Dimensions
W x D x H in 		135 x 69 x 81
Compressed air connection3 ANSI class 150
Sound pressure level dB(A) 76
Weight lb 9,480

RD version

ModelDSG 140-2 i.HOC W DSG 180-2 i.HOC W DSG 220-2 i.HOC W
Working pressure psi 90 125 145 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 579 576 512 692 689 576 819 780 689
Max. positive pressure psi 125 145 125 145 90 125 145
Nominal motor output hp 125 150 175
Pressure dew point °F -13 -30 -33 -14 -30 -33 -14 -30 -33
Dimensions
W x D x H in 		168 x 69 x 81 168 x 69 x 81 168 x 69 x 81
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 69 70 71
Weight lb 9,259 9,590 9,811

ModelDSG 260-2 i.HOC W DSG 290-2 i.HOC W
Working pressure psi 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 964 908 816 963 961
Max. positive pressure psi 90 125 145 125 145
Nominal motor output hp 200 250
Pressure dew point °F -14 -29 -33 -15 -29 -32
Dimensions
W x D x H in 		168 x 69 x 81 168 x 69 x 81
Compressed air connection3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 74 75
Weight lb 10,141 10,582

RD SFC version

ModelDSG 180-2 i.HOC SFC W DSG 220-2 i.HOC SFC W DSG 260-2 i.HOC SFC W
Working pressure psi 90 125 145 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 332 - 761 312 - 665 337 - 615 295 - 821 320 - 773 378 - 737 330 - 966 347 - 911 364 - 858
Max. positive pressure psi 100 145 125 145 110 145
Nominal motor output hp 150 175 200
Pressure dew point °F -14 -29 -33 -15 -30 -33 -15 -29 -33
Dimensions
W x D x H in 		168 x 69 x 81 168 x 69 x 81 168 x 69 x 81
Compressed air connection3 ANSI class 150 3 ANSI class 150 3 ANSI class 150
Sound pressure level dB(A) 71 72 75
Weight lb 10,913 11,133 11,464

ModelDSG 290-2 i.HOC SFC W
Working pressure psi 90 125 145
Flow rate complete system at working pressure acfm 367 - 1,060 418 - 1,058 447 - 1,057
Max. positive pressure psi 145
Nominal motor output hp 250
Pressure dew point °F -14 -29 -32
Dimensions
W x D x H in 		168 x 69 x 81
Compressed air connection3 ANSI class 150
Sound pressure level dB(A) 76
Weight lb 11,905

Technical specifications FSG-2 A

Standard version

ModelFSG 300-2 A FSG 350-2 A FSG 420-2 A
Working pressure psi 60 90 125 145 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 1,269 1,144 1,006 795 1,391 1,388 1,261 1,148 1,747 1,589 1,501 1,261
Max. positive pressure psi 60 90 125 145 90 125 145 60 90 125 145
Nominal motor output hp 250 300 350
Dimensions
W x D x H in 		152 x 82 x 108 152 x 82 x 108 152 x 82 x 108
Compressed air connection6 ANSI class 150 6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 82 82 83
Weight lb 12,236 12,677 13,118

ModelFSG 500-2 A
Working pressure psi 90 125 145
Flow rate complete system at working pressure acfm 1,772 1,769 1,586
Max. positive pressure psi 125 145
Nominal motor output hp 450
Dimensions
W x D x H in 		152 x 82 x 108
Compressed air connection6 ANSI class 150
Sound pressure level dB(A) 83
Weight lb 13,779

SFC version

ModelFSG 420-2 SFC A FSG 500-2 SFC A
Working pressure psi 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 550 - 1,722 598 - 1,517 608 - 1,422 653 - 1,334 550 - 1,793 604 - 1,790 666 - 1,702 702 - 1,612
Max. positive pressure psi 90 145 145
Nominal motor output hp 350 450
Dimensions
W x D x H in 		152 x 82 x 108 152 x 82 x 108
Compressed air connection6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 83 84
Weight lb 14,440 15,432

RD version

ModelFSG 300-2 i.HOC A FSG 350-2 i.HOC A FSG 420-2 i.HOC A
Working pressure psi 90 125 145 125 145 90 125 145
Flow rate complete system at working pressure acfm 1,144 1,006 795 1,261 1,148 1,589 1,501 1,261
Max. positive pressure psi 90 125 145 125 145 90 125 145
Nominal motor output hp 250 300 350
Pressure dew point °F -8 -26 -31 -23 -27 -4 -20 -26
Dimensions
W x D x H in 		182 x 82 x 108 182 x 82 x 108 182 x 82 x 108
Compressed air connection6 ANSI class 150 6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 82 82 83
Weight lb 14,881 15,322 15,763

ModelFSG 500-2 i.HOC A
Working pressure psi 145
Flow rate complete system at working pressure acfm 1,586
Max. positive pressure psi 145
Nominal motor output hp 450
Pressure dew point °F -22
Dimensions
W x D x H in 		182 x 82 x 108
Compressed air connection6 ANSI class 150
Sound pressure level dB(A) 83
Weight lb 16,424

RD SFC version

ModelFSG 420-2 i.HOC SFC A FSG 500-2 i.HOC SFC A
Working pressure psi 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 598 - 1,517 608 - 1,422 653 - 1,334 604 - 1,790 666 - 1,702 702 - 1,612
Max. positive pressure psi 90 145 145
Nominal motor output hp 350 450
Pressure dew point °F -4 -20 -25 -5 -17 -21
Dimensions
W x D x H in 		182 x 82 x 108 182 x 82 x 108
Compressed air connection6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 83 84
Weight lb 17,086 18,078

Technical specifications FSG-2 W

Standard version

ModelFSG 300-2 W FSG 350-2 W FSG 420-2 W
Working pressure psi 60 90 125 145 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 1,269 1,144 1,006 795 1,391 1,388 1,261 1,148 1,747 1,589 1,501 1,261
Max. positive pressure psi 60 90 125 145 90 125 145 60 90 125 145
Nominal motor output hp 250 300 350
Dimensions
W x D x H in 		144 x 82 x 87 144 x 82 x 87 144 x 82 x 87
Compressed air connection6 ANSI class 150 6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 74 75 76
Weight lb 11,574 12,015 12,456

ModelFSG 500-2 W FSG 501-2 W
Working pressure psi 90 125 145 145
Flow rate complete system at working pressure acfm 1,772 1,769 1,586 1,766
Max. positive pressure psi 125 145 145
Nominal motor output hp 450 450
Dimensions
W x D x H in 		144 x 82 x 87 144 x 82 x 87
Compressed air connection6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 76 77
Weight lb 13,118 13,118

SFC version

ModelFSG 420-2 SFC W FSG 500-2 SFC W
Working pressure psi 60 90 125 145 60 90 125 145
Flow rate complete system at working pressure acfm 550 - 1,786 566 - 1,608 608 - 1,499 653 - 1,400 550 - 1,793 604 - 1,790 666 - 1,788 702 - 1,700
Max. positive pressure psi 90 145 145
Nominal motor output hp 350 450
Dimensions
W x D x H in 		144 x 82 x 87 144 x 82 x 87
Compressed air connection6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 77 77
Weight lb 13,779 14,771

RD version

ModelFSG 300-2 i.HOC W FSG 350-2 i.HOC W FSG 420-2 i.HOC W
Working pressure psi 90 125 145 125 145 90 125 145
Flow rate complete system at working pressure acfm 1,144 1,006 795 1,261 1,148 1,589 1,501 1,261
Max. positive pressure psi 90 125 145 125 145 90 125 145
Nominal motor output hp 250 300 350
Pressure dew point °F -8 -26 -30 -26 -30 -10 -26 -30
Dimensions
W x D x H in 		176 x 82 x 87 176 x 82 x 87 176 x 82 x 87
Compressed air connection6 ANSI class 150 6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 74 75 76
Weight lb 14,110 14,551 14,991

ModelFSG 500-2 i.HOC W FSG 501-2 i.HOC W
Working pressure psi 90 125 145 145
Flow rate complete system at working pressure acfm 1,772 1,769 1,586 1,766
Max. positive pressure psi 125 145 145
Nominal motor output hp 450 450
Pressure dew point °F -10 -26 -30 -30
Dimensions
W x D x H in 		176 x 82 x 87 176 x 82 x 87
Compressed air connection6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 76 77
Weight lb 15,653 15,653

RD SFC version

ModelFSG 420-2 i.HOC SFC W FSG 500-2 i.HOC SFC W
Working pressure psi 90 125 145 90 125 145
Flow rate complete system at working pressure acfm 566 - 1,608 608 - 1,499 653 - 1,400 604 - 1,790 666 - 1,788 702 - 1,700
Max. positive pressure psi 90 145 145
Nominal motor output hp 350 450
Pressure dew point °F -10 -26 -30 -17 -27 -30
Dimensions
W x D x H in 		176 x 82 x 87 176 x 82 x 87
Compressed air connection6 ANSI class 150 6 ANSI class 150
Sound pressure level dB(A) 77 77
Weight lb 16,314 17,306

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