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Bipolar compressor

A two-stage compressor is a positive displacement compressor that uses a two-stage compression process. Its working process is divided into two stages: the low-pressure stage draws in and initially compresses the gas, and then introduces the gas into the high-pressure stage for final compression to achieve the required exhaust pressure. This design reduces the gas temperature through intercooling, thereby reducing power consumption and improving efficiency during the compression process. Bi-stage compressors are generally suitable for medium and high-pressure applications, and their structural forms include piston and screw types. Due to the use of staged compression and intercooling mechanisms, this model helps to control the exhaust temperature and improve energy efficiency while maintaining a higher output pressure. Common application areas include industrial gas treatment, high-pressure gas supply and process flows.

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  • Bipolar compressor
  • Bipolar compressor
  • Bipolar compressor
  • Bipolar compressor
  • Bipolar compressor
  • Bipolar compressor
Description Related Products Inquiry
Compressor
type		 Nominal motor power
HP/KW		 Displacement (50Hz)m³/h Number of
Cylinder
×Diameter
×Stroke(mm)		 Aspirator, exhaust valve take-over Oil injection volume(L) Power
supply
V/Ø/Hz		 Electrical parameter Crankcase
Heater
(220)W		 Oil
supply
method		 Weight (including freezing oil)Kg
Low
Pressure		 High
Pressure		 DL SL
Max operating current(A)  Starting
current/rotor
lockedcurrent(A
S6G-12.2 12/9.3 42.3 27 6×Φ65×55 28 1-1/8" 35  1-3/8" 3.5 380~420YY/3/50 440YY/3/60 24 69/113 120 Forced-lubrication 180
S6J-16.2 16/12.5 63.5 31.8 6×Φ65×55 28  1-1/8" 42  1-5/8" 3.5 37 81/132 209
S6H-20.2 20/15 73.6 36.9 6×Φ70×55 28  1-1/8" 42  1-5/8" 3.5 37 97/158 220
S6G-25.2 25/19 84.5 42.3 6×Φ75×55 28  1-1/8" 42  1-5/8" 3.5 45 116/193 233
S6F-30.2 30/22 101.3 50.5 6×Φ82×55 28  1-1/8" 42  1-5/8" 3.5 53 135/220 234

Compressor type Cond temp (°C) Cooling capacity Qo(W) Power consumption Pe(kW)
Evaporating temperatue(°C )
-20 -25 -30 -35 -40 -45 -50 -20 -25 -30 -35 -40 -45 -50
S4G-12.2 30 21.35 17.73 14.55 11.77 9.34 7.24 5.41 8.82 8.22 7.63 7.03 6.43 5.84 5.24
35 20.95 17.43 14.3 11.56 9.15 7.06 5.23 9.49 8.83 8.17 7.51 6.85 6.82 5.53
40 20.6 17.14 14.06 11.35 8.96 6.88 5.04 10.16 9.43 8.71 7.99 7.26 6.54 5.81
45 20.25 168.5 138.2 11.14 8.78 6.69 10.82 10.04 9.25 8.46 7.68 6.89
50 19.92 16.57 13.59 10.94 8.58 11.47 10.63 9.78 8.93 8.09
55 19.59 16.3 13.36 10.73 12.09 11.19 10.28 9.38
S6J-16.2 30 30.65 25.6 21.15 17.23 13.77 10.7 7.95 13.34 12.26 11.17 10.08 8.98 7.9 6.82
35 30.3 25.35 20.95 17.05 13.59 10.49 7.66 14.26 13.09 11.9 10.72 9.53 8.36 7.19
40 30 25.1 20.75 16.87 13.42 10.3 7.41 15.19 13.91 12.63 11.35 10.07 8.79 7.52
45 29.65 24.85 20.55 16.71 13.26 10.11 16.11 14.73 13.35 11.97 10.58 9.17
50 29.35 24.6 20.35 16.57 13.13 17.03 15.53 14.05 12.57 11.05
55 29.1 24.4 20.2 16.46 17.94 16.33 14.74 13.14
S6H-20.2 30 35.5 29.7 24.5 19.97 15.96 12.4 9.18 15.46 14.21 12.95 11.68 10.41 9.15 7.91
35 35.15 29.4 24.3 19.76 15.75 12.16 8.88 16.53 15.17 13.79 12.42 11.05 9.69 8.34
40 34.75 29.1 24.05 19.56 15.56 11.94 8.59 17.61 16.12 14.64 13.15 11.67 10.19 8.71
45 34.4 28.8 23.8 19.37 15.37 11.72 18.68 17.07 15.47 13.87 12.26 10.63
50 34.05 28.5 23.6 19.21 15.22 19.74 18 16.29 14.56 12.8
55 33.7 28.3 23.4 19.07 20.79 18.92 17.09 15.23
S6G-25.2 30 40.8 34.05 28.15 22.9 18.32 14.23 10.54 17.75 16.31 14.86 13.41 11.95 10.51 9.08
35 40.35 33.75 27.9 22.7 18.09 13.96 10.2 18.98 17.41 15.84 14.26 12.68 11.12 9.57
40 39.9 33.4 27.6 22.45 17.86 13.7 9.86 20.21 18.51 16.81 15.1 13.4 11.7 10
45 39.5 33.05 27.35 22.25 17.65 13.46 21.44 19.6 17.76 15.92 14.07 12.2
50 39.1 32.75 27.1 22.05 17.47 22.66 20.67 18.7 16.72 14.7
55 38.7 32.45 26.9 21.9 23.87 21.73 19.62 17.48
S6F-30.2 30 48.8 40.75 33.7 27.4 21.9 17.03 12.61 21.23 19.52 17.78 16.04 14.3 12.57 10.86
35 48.25 40.35 33.35 27.15 21.65 16.71 12.2 22.71 20.83 18.95 17.06 15.18 13.31 11.45
40 47.75 39.95 33 26.85 21.35 19.39 11.79 24.18 22.15 20.11 18.07 16.03 13.99 11.96
45 47.25 39.55 32.7 26.6 21.1 16.1 25.66 23.45 21.25 19.05 16.84 14.6
50 46.75 39.2 32.45 26.4 20.9 27.12 24.73 22.37 20.01 17.59
55 46.3 38.85 32.2 26.2 28.56 25.99 23.47 20.92
Compressor type Cond temp (°C) Cooling capacity Qo(W) Power consumption Pe(kW)
Evaporating temperatue(°C )
-20 -25 -30 -35 -40 -45 -50 -20 -25 -30 -35 -40 -45 -50
S4G-12.2 30 18.37 14.95 12.02 9.53 7.43 5.67 4.18 8.32 7.66 7.01 6.37 5.75 5.16 4.61
35 17.6 14.31 11.5 9.11 7.08 5.37 3.92 8.87 8.16 7.45 6.76 6.08 5.42 4.79
40 16.83 13.68 10.98 8.68 6.73 5.07 3.65 9.45 8.68 7.92 7.16 6.42 5.69 4.97
45 16.06 13.04 10.46 8.26 6.38 4.77 10.06 9.22 8.39 7.56 6.74 5.93
50 15.29 12.42 9.95 7.83 6.02 10.7 9.77 8.85 7.93 7.03
55 14.52 11.78 9.43 7.41 11.37 10.31 9.27 8.26
S6J-16.2 30 27.9 22.75 18.35 14.57 11.34 8.57 6.17 10.94 10.32 9.62 8.83 7.93 6.92 5.78
35 26.8 21.85 17.62 13.98 10.85 8.15 5.79 11.88 11.14 10.33 9.41 8.4 7.26 6.01
40 25.7 20.95 16.89 13.39 10.37 7.74 5.42 12.81 11.99 11.06 10.02 8.87 7.58 6.17
45 24.55 20.05 16.16 12.81 9.9 7.35 13.74 12.84 11.81 10.65 9.33 7.85
50 23.4 19.14 15.45 12.24 9.44 14.64 13.69 12.57 11.28 9.78
55 22.3 18.24 14.74 11.69 15.52 14.52 13.34 11.92
S6H-20.2 30 32.35 26.4 21.25 16.89 13.14 9.93 7.15 12.68 11.96 11.15 10.23 9.19 8.02 6.7
35 31.05 25.35 20.4 16.2 12.58 9.45 6.71 13.77 12.92 11.97 10.91 9.73 8.42 6.96
40 29.75 24.3 19.57 15.52 12.02 8.98 6.28 14.85 13.89 12.82 11.62 10.28 8.79 7.15
45 28.45 23.25 18.73 14.84 11.47 8.51 15.92 14.88 13.69 12.34 10.81 9.1
50 27.15 22.2 17.9 14.19 10.95 16.97 15.86 14.57 13.07 11.33
55 25.8 21.15 17.09 13.55 17.99 16.83 15.46 13.81
S6G-25.2 30 37.15 30.3 24.4 19.39 15.09 14.41 8.21 14.55 13.73 12.8 11.75 10.55 9.21 7.69
35 35.65 29.1 23.45 18.6 14.44 10.85 7.7 15.81 14.83 13.74 12.53 11.17 9.67 7.99
40 34.15 27.9 22.5 17.82 13.8 10.31 7.21 17.05 15.95 14.72 13.34 11.8 10.09 8.21
45 32.65 26.7 21.5 17.04 13.17 9.78 18.28 17.08 15.72 14.17 12.42 10.45
50 31.15 25.45 20.55 16.29 12.57 19.59 18.21 16.73 15.01 13.01
55 29.65 24.3 19.62 15.56 20.65 19.32 17.75 15.86
S6F-30.2 30 44.45 36.25 29.2 23.2 18.06 13.65 9.82 17.41 16.43 15.32 14.06 12.63 11.02 9.2
35 42.7 34.8 28.05 22.25 17.28 12.98 9.22 18.91 17.74 16.44 14.99 13.37 11.56 9.56
40 40.9 33.35 26.9 21.3 16.51 12.22 8.63 20.4 19.09 17.61 15.96 14.12 12.07 9.82
45 39.1 31.9 25.7 20.4 15.76 11.7 21.87 20.44 18.8 16.95 14.85 12.5
50 37.25 30.4 24.6 19.49 15.04 23.31 21.79 20.02 17.96 15.57
55 35.45 29.05 23.5 18.61 24.71 23.11 21.23 18.97
Compressor type Cond temp (°C) Cooling capacity Qo(KW) Power consumption Pe(kW)
Evaporating temperatue(°C )
-25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70
S4G-12.2 30 19.49 16.83 14.28 11.86 9.65 7.68 5.98 4.57 3.41 2.49 9.74 9.06 8.35 7.61 6.85 6.1 5.35 4.62 3.92 3.27
35 19.26 16.57 14 11.6 9.43 7.51 5.87 4.48 3.34 2.42 10.39 9.64 8.86 8.05 7.22 6.4 5.59 4.81 4.06 3.37
40 18.92 16.23 13.69 11.34 9.22 7.36 5.76 4.4 3.25 11.05 10.23 9.37 8.49 7.6 6.72 5.85 5.01 4.22
45 18.52 15.86 13.37 11.08 9.03 7.23 5.66 4.29 11.7 10.82 9.9 8.96 8 7.05 6.12 5.22
50 18.07 15.48 13.06 10.85 8.86 7.1 5.54 12.35 11.4 10.44 9.44 8.42 7.41 6.41
55 17.61 15.1 12.77 10.64 8.71 6.97 12.9 11.98 10.99 9.94 8.87 7.78
S6J-16.2 30 27.6 23.75 20.15 16.81 13.76 11.03 8.66 6.65 4.99 3.66 14.13 12.93 11.76 10.61 9.49 8.41 7.37 6.4 5.49 4.65
35 27.1 23.3 19.74 16.46 13.46 10.8 8.49 6.53 4.9 3.58 15.05 13.74 12.48 12.24 10.06 8.91 7.82 6.78 5.8 4.89
40 26.5 22.8 19.34 16.11 13.18 10.58 8.33 6.41 4.79 16 14.58 13.21 11.9 10.63 9.42 8.26 7.16 6.1
45 26 22.35 18.92 15.77 12.92 10.38 8.19 6.27 16.94 15.42 13.96 12.56 11.21 9.93 8.69 7.51
50 25.5 21.9 18.52 15.44 12.67 10.21 8.02 17.83 16.23 14.68 13.2 11.78 10.41 9.1
55 21.5 18.16 15.15 12.45 10.02 16.97 15.37 13.82 12.33 10.87
S6H-20.2 30 31.9 27.45 23.3 19.44 15.91 12.76 10.02 7.69 5.77 4.23 16.43 15.02 13.64 12.3 11 9.76 8.57 7.44 6.4 5.4
35 31.3 26.95 22.85 19.03 15.56 12.48 9.8 7.56 5.67 4.14 17.47 15.95 14.47 13.04 11.66 10.33 9.07 7.86 6.72 5.66
40 30.6 26.35 22.35 18.61 15.23 12.24 9.64 7.42 5.54 18.53 16.9 15.32 13.79 12.33 10.92 9.57 8.29 7.07
45 29.9 25.75 21.85 18.2 14.92 12.01 9.47 7.26 19.6 17.85 16.17 14.55 12.99 11.5 10.07 8.7
50 29.35 25.2 21.35 17.81 14.63 11.8 9.28 20.63 18.79 17.01 15.3 13.65 12.07 10.55
55 24.7 20.9 17.45 14.36 11.57 19.69 17.83 16.03 14.29 12.61
S6G-25.2 30 36.2 31.3 26.6 22.25 18.22 14.62 11.48 8.83 6.63 4.87 18.84 17.27 15.71 14.16 12.65 11.19 9.8 8.49 7.29 6.2
35 35.6 30.7 26.1 21.75 17.81 14.3 11.25 8.66 6.51 4.76 20.02 18.32 16.64 15 13.41 11.87 10.41 9.02 7.72 6.51
40 34.9 30.1 25.5 21.3 17.42 14 11.04 8.5 6.35 21.27 19.4 17.6 15.85 14.16 12.55 11 9.52 8.13
45 34.1 29.4 24.95 20.8 17.06 13.74 10.84 8.31 22.52 20.5 18.56 16.7 14.92 13.2 11.56 10
50 33.45 28.75 24.35 20.35 16.72 13.49 10.62 23.71 21.58 19.5 17.56 15.67 13.85 12.1
55 32.9 28.15 23.8 19.92 16.41 13.23 24.78 22.61 20.49 18.42 16.42 14.47
S6F-30.2 30 43.4 37.4 31.75 26.5 21.7 17.42 13.69 10.54 7.92 5.8 22.53 20.65 18.78 16.94 15.15 13.42 11.77 10.2 8.74 7.4
35 42.5 36.6 31.05 25.9 21.2 17.03 13.42 10.37 7.78 5.68 23.85 21.86 19.89 17.94 16.04 14.21 12.45 10.78 9.23 7.8
40 41.5 35.7 30.3 25.3 20.7 16.68 13.17 10.15 7.59 25.2 23.1 21.01 18.96 16.95 15 13.14 11.37 9.72
45 40.45 34.8 29.55 24.7 20.3 16.36 12.93 9.92 26.59 24.37 22.16 19.98 17.86 15.8 13.83 11.96
50 39.5 34 28.85 24.1 19.87 16.06 12.65 28.07 25.69 23.33 21.01 18.75 16.57 14.49
55 38.8 33.25 28.2 23.6 19.4 15.74 29.64 27.06 24.51 22.03 19.63 17.32

Compressor type Cond temp (°C) Cooling capacity Qo(KW) Power consumption Pe(kW)
Evaporating temperatue(°C )
-25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70
S4G-12.2 30 15.86 13.27 10.91 8.8 6.96 5.39 4.09 3.05 2.22 1.59 9.02 8.28 7.55 6.83 6.11 5.4 4.69 3.98 3.27 2.57
35 15.06 12.54 10.27 8.26 6.52 5.05 3.84 2.86 2.09 1.48 9.45 8.66 7.88 7.11 6.34 5.57 4.82 4.07 3.32 2.59
40 14.16 11.76 9.61 7.71 6.09 4.72 3.57 2.68 1.93 9.87 9.04 8.21 7.38 6.56 5.75 4.95 4.15 3.37
45 13.2 10.94 8.92 7.17 5.66 4.4 3.35 2.47 10.29 9.42 8.54 7.67 6.8 5.94 5.08 4.25
50 12.18 10.08 8.23 6.62 5.24 4.07 3.08 10.72 9.81 8.89 7.97 7.05 6.14 5.24
55 11.1 9.2 7.52 6.06 4.8 3.72 11.15 10.21 9.25 8.3 7.34 6.38
S6J-16.2 30 23.95 19.94 16.35 13.19 10.44 8.1 6.15 4.57 3.33 2.37 13.07 11.7 10.43 9.25 8.17 7.18 6.27 5.44 4.69 4
35 22.65 18.79 15.38 12.38 9.78 7.57 5.77 4.3 3.12 2.21 13.63 12.22 10.91 9.68 8.54 7.48 6.5 5.6 4.78 4.04
40 21.25 17.6 14.28 11.56 9.13 7.09 5.4 4.02 2.9 14.17 12.77 11.42 10.15 8.95 7.81 6.76 5.78 4.89
45 19.76 16.36 13.36 10.74 8.49 6.6 5.02 3.72 14.73 13.33 11.96 10.64 9.38 8.18 7.04 5.98
50 18.23 15.09 12.32 9.91 7.85 6.1 4.63 15.3 13.9 12.51 11.15 9.83 8.56 7.34
55 16.63 13.78 11.26 9.07 7.19 5.58 15.87 14.47 13.07 11.67 10.3 8.95
S6H-20.2 30 27.7 23.1 18.96 15.3 12.11 9.38 7.13 5.3 3.85 2.74 15.36 13.69 12.15 10.73 9.44 8.27 7.23 6.32 5.53 4.86
35 26.2 21.8 17.84 14.36 11.34 8.79 6.69 4.98 3.62 2.56 16.04 14.33 12.73 11.26 9.9 8.67 7.56 6.57 5.71 4.97
40 24.6 20.4 16.68 13.4 10.59 8.22 6.26 4.66 3.36 16.7 14.96 13.32 11.79 10.38 9.08 7.89 6.82 5.87
45 22.9 18.97 15.49 12.45 9.84 7.65 5.82 4.31 17.35 15.58 13.91 12.34 10.88 9.51 8.24 7.08
50 21.1 17.49 14.28 11.49 9.1 7.07 5.37 18 16.21 14.52 12.92 11.41 9.98 8.63
55 19.25 15.95 13.04 10.51 8.33 6.47 18.66 16.85 15.14 13.52 11.98 10.5
S6G-25.2 30 31.8 26.5 21.75 17.57 13.9 10.78 8.18 6.09 4.43 3.15 17.92 15.88 14.03 12.35 10.84 9.49 8.3 7.25 6.34 5.56
35 30.1 25 20.5 16.48 13.02 10.1 7.68 5.72 4.16 2.94 18.51 16.49 14.63 12.91 11.35 9.93 8.66 7.54 6.56 5.72
40 28.25 23.4 19.14 15.39 12.15 9.43 7.18 5.34 3.86 19.12 17.14 15.27 13.52 11.89 10.4 9.04 7.83 6.77
45 26.3 21.8 17.78 14.29 11.3 8.78 6.68 4.95 19.74 17.81 15.95 14.16 12.47 10.89 9.43 8.12
50 24.3 20.05 16.39 13.19 10.44 8.12 6.16 20.4 18.51 16.63 14.81 13.05 11.38 9.82
55 22.1 18.31 14.97 12.06 9.57 7.42 21.11 19.21 17.32 15.45 13.63 11.87
S6F-30.2 30 38.05 31.7 26.05 21 16.62 12.88 9.79 7.28 5.3 3.76 21.26 18.81 16.61 14.64 12.9 11.37 10.02 8.86 7.85 7
35 36 29.95 24.5 19.71 15.57 12.07 9.18 6.84 4.98 3.51 22.11 19.66 17.41 15.37 13.53 11.88 10.42 9.13 8.02 7.08
40 33.8 28 22.9 18.39 14.53 11.28 8.59 6.4 4.62 22.95 20.53 18.26 16.15 14.2 12.42 10.82 9.41 8.18
45 31.45 26.05 21.25 17.08 13.51 10.5 8 5.92 23.82 21.42 19.12 16.94 14.89 13 11.26 9.71
50 28.95 24 19.59 15.77 12.49 9.71 7.37 24.72 22.31 19.98 17.74 15.61 13.61 11.76
55 26.4 21.9 17.89 14.43 11.44 8.88 25.67 23.19 20.8 18.52 16.34 14.27



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Zhejiang Diya Refrigeration Equipment Co., Ltd. is China Bipolar compressor Suppliers and Custom Bipolar compressor Exporter. We founded in 1983 and headquartered in Huzhou, Zhejiang Province, is a modern comprehensive enterprise integrating R&D design, manufacturing, sales, engineering installation and after-sales service. The company covers an area of 134000 square meters with a registered capital of 40 million yuan and more than 260 employees, including over 38 technical and management backbones. It is a national technology company and a Zhejiang provincial R&D center.

Over the past 40 years, adhering to the concept of "leading development with science and technology, winning the market with quality", Diya has built a complete industrial refrigeration product system. It has independently developed more than 10 series of products, including air coolers, air-cooled/water-cooled condensers, screw compressor units, condensing units, chillers and integrated systems, which are widely used in food cold chain, industrial process cooling, pharmaceutical warehousing, commercial refrigeration, marine refrigeration and logistics cold chain and other industries.

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