Atlas Copco GA90 (W) VSD

2920 1190 05
32
Industrial Air Division Instruction book
7.4.2 Specific data of GA50 (W)VSD 1)
Working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e) 7 9.5 12.5
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hz 50/60 50/60 50/60
Number of compression stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1
Maximum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . rpm 4800 4260 3615
Minimum working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e) 4 4 4
Maximum air inlet temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C 40 40 40
Minimum air inlet temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C 0 0 0
Maximum cooling water outlet temperature 6) . . . . . . . . . . . . . . . . . . °C 50 50 50
Maximum cooling water inlet pressure 6) . . . . . . . . . . . . . . . . . . . . . . bar(e) 5 5 5
Recommended cooling water flow 6)
- cooling water inlet temperature below 25°C 7). . . . . . . . . . . . . . . . . l/min 50 50 50
- cooling water inlet temperature between 25°C and 40°C 8) . . . . . . . l/min 75 75 75
Temperature of air leaving air outlet valve, approx. . . . . . . . . . . . . . . °C 34 33 32
Electric power input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . kW 63.2 63.0 60.0
Oil capacity, approx.
- air cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l 18 18 18
- water cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l 17 17 17
Sound pressure level 3) 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dB(A) 75 75 75
7.4.3 Specific data of GA90 (W) VSD 1)
Working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e) 7 9.5 12.5
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hz 50/60 50/60 50/60
Number of compression stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1
Maximum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . rpm 4820 4230 3600
Minimum working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e) 4 4 4
Maximum air inlet temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C 40 40 40
Minimum air inlet temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C 0 0 0
Maximum cooling water outlet temperature 6) . . . . . . . . . . . . . . . . . . °C 50 50 50
Maximum cooling water inlet pressure 6) . . . . . . . . . . . . . . . . . . . . . . bar(e) 5 5 5
Recommended cooling water flow 6)
- cooling water inlet temperature below 25°C 7). . . . . . . . . . . . . . . . . l/s 1.5 1.5 1.5
- cooling water inlet temperature between 25°C and 40°C . . . . . . . . . l/s 2.2 2.2 2.2
Temperature of air leaving air outlet valve, approx. . . . . . . . . . . . . . . °C 30 30 30
Oil capacity, approx. 5)
- air cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l 28 28 28
- water cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l 22 22 22
Electric power input
- air cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . kW 105.5 105 102
- water cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . kW 102 101.1 98.5
Sound pressure level 3) 4)
- air cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dB(A) 85 85 85
- water cooled compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dB(A) 78 78 78
Sound pressure level 2) 3) 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dB(A) 76 76 76
7.5 Conversion list of SI units into British units
1 bar = 14.504 psi
1 g = 0.035 oz
1 kg = 2.205 lb
1 km/h = 0.621 mile/h
1 kW = 1.341 hp (UK and US)
1 l = 0.264 US gal
1 l = 0.220 Imp gal (UK)
1 l = 0.035 cu.ft
1 m = 3.281 ft
1 mm = 0.039 in
1 m
3
/min = 35.315 cfm
1 mbar = 0.401 in wc
1 N = 0.225 lbf
1 Nm = 0.738 lbf.ft
x°C = (32 + 1.8x) °F
∆t 1°C = ∆t 1.8 °F
1) At reference conditions
2) With silencing kit and outlet duct (optional)
3) According to PNEUROP/CAGI PN8NTC2
7) ∆t=15°C
8) ∆t=10°C
4) Free field conditions
5) Air-cooled compressors
6) Water-cooled compressors