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GEA Grasso M series

GEA Grasso M series

GEA Grasso M compressors are the first screw compressors with an integrated pressure-activated check valve ensuring low pressure drop.

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

Learn more with GEA RTSelect – our product selection and configuration tool.

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

The GEA Grasso M series comes in eight sizes with a swept volume ranging from 231 to 870 m³/h / 136 to 512 cfm (at 2,940 rpm).

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