Atlas Copco LT55

2920 1257 04
44
Instruction book
7.4.2 60 Hz
Compressor type LF15 LF22 LF40 LF55 LF75
Maximum working pressure for LF . . . . . . . . . . . . . . bar(e) 10 10 10 10 10
Maximum working pressure for LF Trolley. . . . . . . . bar(e) 9.5 9.5 9.5 9.5 9.5
Pre-set pressure difference for LF Trolley . . . . . . . . . bar 1 1 1 1 1
Temperature at outlet valve, approx.
- Unsilenced compressor . . . . . . . . . . . . . . . . . . . . . . Celsius 49 54 54 60 58
- Silenced compressor . . . . . . . . . . . . . . . . . . . . . . . . Celsius 57 62 62 68 66
Power input at max. working pressure . . . . . . . . . . . . kW 2.36 3.10 5.89 6.70 10.66
Motor shaft speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . r/min 1800 1800 1800 1800 1800
Free air delivery 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . l/s 3.6 4.6 8.8 10.7 17.1
Opening pressure of safety valve (not for Block/
Power Pack) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bar(e) 11 11 11 11 11
Maximum sound pressure level 1):
- Standard version. . . . . . . . . . . . . . . . . . . . . . . . . . . . dB(A) 84 85 85 86 88
- Silenced receiver-mounted version . . . . . . . . . . . . . dB(A) 71 72 72 76 79
- Silenced pack version . . . . . . . . . . . . . . . . . . . . . . . dB(A) 69 70 70 74 76
7.5 Compressor data for LT 15 bar
7.5.1 50 Hz
Compressor type LT15 LT22 LT40 LT55 LT75 LT110
Maximum working pressure for LT . . . . bar(e) 15 15 15 15 15 15
Maximum working pressure for
LT Trolley . . . . . . . . . . . . . . . . . . . . . . . . bar(e) 13.7 13.7 13.7 13.7 13.7 13.7
Pre-set pressure difference for
LT Trolley . . . . . . . . . . . . . . . . . . . . . . . . bar 1 1 1 1 1 1
Temperature at outlet valve, approx.
- Unsilenced compressor . . . . . . . . . . . . Celsius 49 57 68 56 75 72
- Silenced compressor . . . . . . . . . . . . . . Celsius 57 65 76 64 83 80
Power input at max. working pressure . . kW 2.29 2.87 4.95 6.64 8.67 12.10
Motor shaft speed . . . . . . . . . . . . . . . . . . r/min 1500 1500 1500 1500 1500 1500
Free air delivery 2) . . . . . . . . . . . . . . . . . l/s 3.1 4.0 6.7 9.2 11.7 18.1
Oil capacity. . . . . . . . . . . . . . . . . . . . . . . l 0.8 0.8 0.8 1.4 1.4 1.7
Opening pressure of safety valve (not
for Block/Power Pack) . . . . . . . . . . . . . . bar(e) 16 16 16 16 16 16
Opening pressure of relief valve . . . . . . bar(e) 6.5 6.5 6.5 6.5 6.5 6.5
Maximum sound pressure level 1):
- Standard version. . . . . . . . . . . . . . . . . . dB(A) 78 79 79 80 81 84
- Silenced receiver-mounted version . . . dB(A) 65 66 66 70 70 73
- Silenced pack version . . . . . . . . . . . . . dB(A) 63 64 64 68 68 70