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BITZER 2nd generation 2-stage

Bitzer 2nd generation 2-stage S6G-25.2Y

2nd generation 2-stage S6G-25.2Y

BITZER is raising the bar in terms of technology and capacity for expanded low temperature applications with the 2nd generation of 2-stage compressors. This series is the result of extensive research on the basis of years of experience in the construction of highly efficient and solid reciprocating compressors. The gas flow control and working valves are specially adapted for low temperature applications.

  • Displacement at 1450 min-1 : 84,5 (LP) 42,3 (HP)
  • Number of cylinders : 6
  • Oilcharge : 4,75 dm3

With liquid subcooling 50Hz (R404A/R507A)

Compressor type Cond.temp. Qo / Pe Evaporating temperature °C
[°C] -25 -30 -35 -40 -45 -50 -55 -60 -65 -70
S6G-25.2Y 30 Qo 36200 31300 26600 22250 18220 14620 11480 8830 6630 4870
Pe 18,84 17,27 15,71 14,16 12,65 11,19 9,80 8,49 7,29 6,20
35 Qo 35600 30700 26100 21750 17810 14300 11250 8660 6510 4760
Pe 20,02 18,32 16,64 15,00 13,41 11,87 10,41 9,02 7,72 6,51
40 Qo 34900 30100 25500 21300 17420 14000 11040 8500 6350
Pe 21,27 19,40 17,60 15,85 14,16 12,55 11,00 9,52 8,13
45 Qo 34100 29400 24950 20800 17060 13740 10840 8310
Pe 22,52 20,50 18,56 16,70 14,92 13,20 11,56 10,00
50 Qo 33450 28750 24350 20350 16720 13490 10620
Pe 23,71 21,58 19,35 17,56 15,67 13,85 12,10
55 Qo 32900 28150 23800 19920 16410 13230
Pe 24,78 22,61 20,49 18,42 16,42 14,47

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Without liquid subcooling 50Hz (R404A/R507A)

Compressor type Cond.temp. Qo / Pe Evaporating temperature °C
[°C] -25 -30 -35 -40 -45 -50 -55 -60 -65 -70
S6G-25.2Y 30 Qo 31800 26500 21750 17570 13900 10780 8180 6090 4430 3150
Pe 17,92 15,88 14,03 12,35 10,84 9,49 8,30 7,25 6,34 5,56
35 Qo 30100 25000 20500 16480 13020 10100 7680 5720 4160 2940
Pe 18,51 16,49 14,63 12,91 11,35 9,93 8,66 7,54 6,56 5,72
40 Qo 28250 23400 19140 15390 12150 9430 7180 5340 3860
Pe 19,12 17,14 15,27 13,52 11,89 10,40 9,04 7,83 6,77
45 Qo 26300 21800 17780 14290 11300 8780 6680 4950
Pe 19,74 17,81 15,95 14,16 12,47 10,89 9,43 8,12
50 Qo 24300 20050 16390 13190 10440 8120 6160
Pe 20,40 18,51 16,63 14,81 13,05 11,38 9,82
55 Qo 22100 18310 14970 12060 9570 7420
Pe 21,11 19,21 17,32 15,45 13,63 11,87

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Compressor type Displacement at 1450 min-1 Number of cylinders Oil charge Weight Pipe connections Motor Max. operating current Max. power consumption Starting current(lockedrotor)
LP HP DL SL
dm3 Kg mm pouce mm pouce Amp kW Amp. Y/YY
S6G-25.2Y 84,5 42,3 6 7.75 233 35 13/8 42
54		 15/8
21/8		 380 ..420YY/3/50
440 ..480 YY/3/60		 43 24,9 116/193