The integration of the suction filter and coupling housing greatly simplify assembly of the package. The outstanding energy-efficiency of these compressors is based on the infinitely adjustable capacity combined with the extended variable Vi-range (internal volume ratio). The variable speed from 1,000 to 6,000 rpm ensures a wide operation range and maximum efficiency in full and part load.
Highlights & Technical Features
- Outstanding energy-efficiency
- Easy package assembly
- Designed for ammonia (R717) and all other common refrigerants
- Available according to API 619 and ISO 10440 standard
- Swept volume: 231 – 870 m³/h / 136 to 512 cfm at 2,940 rpm
- Speed range: 1,000 - 6,000 rpm
- Design pressure: 28 bar, 52 bar / 406 psi, 754 psi
GEA Grasso M series (metric units)
| Compressor Type |
Swept volume (m³/h) |
Cooling capacity (kW) 28 bar compressor¹ |
Cooling/heating capacity (kW) 52 bar compressor¹ |
|||
|---|---|---|---|---|---|---|
| 2940 rpm | 4500 rpm | R717, -35/+35 °C² |
R717, 0/35 °C |
R744, -50/-5 °C |
R717, 35/80 °C |
|
| C | 231 | 354 | n/a |
n/a | n/a | n/a |
| D | 265 | 406 | n/a | n/a | n/a | n/a |
| E | 321 | 491 | n/a | n/a | n/a | n/a |
| G | 372 | 569 | n/a |
n/a |
n/a |
n/a |
| H | 471 | 721 | 115 | 444 | 486 | 1.258 |
| L | 544 | 833 | 133 | 513 | 562 | 1.457 |
| M | 708 | 1.084 | 174 | 673 | 743 | 2.202 |
| N | 870 | 1.332 | 215 | 828 | 914 | 2.474 |
| ¹ at 2940 rpm with 5 K superheat and 0 K subcooling, stated temperature values: evaporation/condensation ² with economizer |
||||||
GEA Grasso M series (imperial units)
| Compressor Type¹ |
Swept volume (cfm) |
Cooling capacity (TR) 406 psi compressor² |
Cooling/heating capacity (TR/MBH) 754 psi compressor² |
|||
|---|---|---|---|---|---|---|
| 3550 rpm | 4500 rpm | R717, -30/+95 °F³ |
R717, 30/95 °F |
R744, -60/+25 °F |
R717, 95/175 °F |
|
| C (55 GMX) | 165 | 208 | n/a |
n/a | n/a | n/a |
| D (60 GMX) | 188 | 238 | n/a | n/a | n/a | n/a |
| E (75 GMX) | 228 | 289 | n/a | n/a | n/a | n/a |
| G (85 GMX) | 264 | 335 | n/a |
n/a |
n/a |
n/a |
| H (110 GMX) | 334 | 424 | 40 | 145 | 154 | 336 |
| L (125 GMX) | 386 | 490 | 46 | 167 | 185 | 387 |
| M (160 GMX) | 503 | 637 | 61 | 220 | 236 | 532 |
| N (195 GMX) | 618 | 783 | 75 | 270 | 294 | 653 |
|
¹ in parenthesis corresponding GEA FES screw compressor package model ² at 3550 rpm with 9 °F superheat and 0 °F subcooling, stated temperature values: evaporation/condensation ³ with economizer |
||||||
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