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GEA Grasso 12 series 

A range of outstandingly reliable, open type, reciprocating refrigeration compressors.
All designed to work efficiently in almost any type of industrial refrigeration installation for cooling or freezing applications.

The GEA Grasso 12 compressors have already proven themselves all over the world for many years in terms of reliability under the most demanding circumstances and with an alert eye to economics. GEA has paid special attention to such aspects as maintenance costs and servicebility. The GEA Grasso 12 series offers you maximum reliability for modest investment and maintenance costs. The GEA Grasso 12 series is a typical example of Grasso’s unique welded steel compressor design. A design contributing to a large field of operation and lower installation cost, without the need for additional water cooling circuits.

 

Piston compressors - Grasso 12 series 

        Features of GEA Grasso 12 series

  • Steel welded compressor housing
  • No water cooling required
  • Extensive range of single & two stage  models
  • Capacity control steps per cylinder
  • Suitable for speed control (500 - 1000 min.-1)

 

GEA Grasso 12 series

Models

Swept Volume*

Cooling cap. (kW)**

 

(m³/h)

NH3

R22

R134a

R404a

Single stage

0/+40 °C

 

-15/+40 °C

GEA Grasso  412

531

450

392

240

190

GEA Grasso  612

796

675

588

360

286

GEA Grasso  912

1194

1012

882

540

429

GEA Grasso 1212

1592

1350

1176

720

572

 

 

GEA Grasso 12 series

Models

Swept Volume*

Cooling cap. (kW)**

 

(m³/h)

NH3

R22

R134a

R404a

Two stage***

-35/+35 °C

-40/35 °C

 n.a.

-40/+35 °C

GEA Grasso  3112

398

86

71

-

-

GEA Grasso  4212

531

125

104

-

101

GEA Grasso  5112

664

124

101

-

-

GEA Grasso  6312

796

188

158

-

154

GEA Grasso  7212

929

194

157

-

-

GEA Grasso  8412

1062

251

208

-

203

GEA Grasso  9312

1194

259

213

-

-

GEA Grasso 10212

1327

249

202

-

-

 

 


* Theoretical swept volume based on max. speed of N = 1000 min.-1
** Cooling capacity based on: 5K subcooling, 5K superheat, (R404a" 15K superheat)
*** NH3 refr.: data based on openflash gas cooling and liquid expansion (GEA Grasso System 'C')
Synt. refr.: data based on gas cooling and liquid subcooling in heat exchanger (GEA Grasso System 'B')