Screw compressors operate by drawing gas into the spaces between the lobes of two rotors. As the rotors turn, the gas is forced by the rotor profile into continuously decreasing space until it reaches the discharge port of the compressor. The compressors do not generate out-of-balance forces; therefore, they require significantly low foundation strength.
The GEA Grasso Gas M series is the medium screw compressor series covering a swept volume from 231 to 1332 m3/h.
| Compressor type | Swept volume
(m3/h) |
Max. design.
pressure (bar) |
Weight
(kg) |
||
| 2940
rpm |
3550
rpm |
4500
rpm |
|||
| GEA Grasso M – C (GAS) | 231 | 279 | 354 | 28 | 392* |
| GEA Grasso M – D (GAS) | 265 | 320 | 406 | 28 | 401* |
| GEA Grasso M – E (GAS) | 321 | 388 | 491 | 28 | 444* |
| GEA Grasso M – G (GAS) | 372 | 449 | 569 | 28 | 451* |
| GEA Grasso M – H (GAS) | 471 | 569 | 721 | 28/52 | 581* |
| GEA Grasso M – L (GAS) | 544 | 657 | 833 | 28/52 | 605* |
| GEA Grasso M – M (GAS) | 708 | 855 | 1084 | 28/52 | 772* |
| GEA Grasso M – N (GAS) | 870 | 1051 | 1332 | 28/52 | 800* |
| * with coupling housing | |||||
The GEA Grasso LT series gas screw compressors are distinguished by a robust design. All components are engineered for long operating life, high availability and easy maintenance. These screw compressor series cover a swept volume from 805 to 13,846 m3/h.
| Compressor type | Swept volume
(m3/h) |
Max. design.
pressure (bar) |
Weight
(kg) |
||
| 2940
rpm |
3550
rpm |
4500
rpm |
|||
| GEA Grasso LT – P (GAS) | 805 | 972 | – | 28/52 | 595 |
| GEA Grasso LT – R (GAS) | 1040 | 1256 | – | 28/52 | 895 |
| GEA Grasso LT – S (GAS) | 1290 | 1558 | – | 28/52 | 960 |
| GEA Grasso LT – T (GAS) | 1460 | 1763 | – | 28/52 | 1060 |
| GEA Grasso LT – V (GAS) | 1740 | 2101 | – | 28/52 | 1186 |
| GEA Grasso LT – W (GAS) | 1990 | 2403 | – | 28/52 | 1200 |
| GEA Grasso LT – Y (GAS) | 2390 | 2886 | – | 28/52 | 1308 |
| GEA Grasso LT – Z (GAS) | 2748 | 3318 | – | 28/52 | 1670 |
| GEA Grasso LT – XA (GAS) | 3250 | 3924 | – | 28/52 | 1740 |
| GEA Grasso LT – XB (GAS) | 4150 | 5011 | – | 28/52 | 2100 |
| GEA Grasso LT – XC (GAS) | 4900 | 5917 | – | 28/52 | 2400 |
| GEA Grasso LT – XD (GAS) | 5800 | 7003 | – | 28/52 | 2600 |
| GEA Grasso LT – XE (GAS) | 7110 | 8585 | – | 28/52 | 3500 |
| GEA Grasso LT – XF (GAS) | 8560 | 10.336 | – | 28 | 3850 |
| GEA Grasso LT – XG (GAS) | 9807 | 11.842 | – | 28 | 4500 |
| GEA Grasso LT – XH (GAS) | 11.467 | 13.846 | – | 28 | 4700 |
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