Atlas Copco GA 75+

On water-cooled units also:
Maximum cooling water outlet temperature ˚C 50
Maximum cooling water outlet temperature ˚F 122
Maximum cooling water inlet pressure bar(e) 5
Maximum cooling water inlet pressure psig 72.5
11.6 Compressor data
Reference conditions
All data specified below apply under reference conditions, see section Reference
conditions and limitations.
GA 55
7.5 bar 8.5 bar 10 bar 13 bar 100 psi 125 psi 150 psi 175 psi
Frequency Hz 50 50 50 50 60 60 60 60
Maximum (unloading)
pressure, Workplace
units
bar(e) 7.5 8.5 10 13 7.4 9.1 10.8 12.5
Maximum (unloading)
pressure, Workplace
units
psig 109 123 145 189 107 132 157 181
Maximum (unloading)
pressure, Workplace Full-
Feature units
bar(e) 7.3 8.3 9.8 12.8 7.2 8.9 10.6 12.3
Maximum (unloading)
pressure, Workplace Full-
Feature units
psig 106 120 142 186 104 129 154 178
Reference working
pressure
bar(e) 7 8 9.5 12.5 6.9 8.6 10.3 12
Reference working
pressure
psig 102 116 138 181 100 125 150 175
Pressure drop over dryer,
Workplace Full-Feature
units
bar(e) 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
Pressure drop over dryer,
Workplace Full-Feature
units
psig 3.63 3.63 3.63 3.63 3.63 3.63 3.63 3.63
Set point of thermostatic
valve
˚C 40 40 40 60 40 40 40 60
Set point of thermostatic
valve
˚F 104 104 104 140 104 104 104 140
Motor shaft speed r/min 2978 2978 2978 2978 3570 3570 3570 3570
Nominal motor power kW 55 55 55 55 55 55 55 55
Instruction book
194 2920 7109 60