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Two Groups PM VSD Screw Air Compressor (55-250 kW)

Two Groups PM VSD Screw Air Compressor (55-250 kW)

Two Groups PM VSD Screw Air Compressor Freatures and Advantages:


01 Features Of permanent Magnet Variable Frequency Air Compressor

  • Ultra-low temperature rise design, which allows the compressor running at ultra-low frequency for a long time.
  • Closed-loop vector control system for faster control and more precise speed control.
  • The compressor unit can still operate efficiently when the frequency is reduced by more than 50%.
  • The pressure is stable and the pressure fluctuation is accurately controlled within 0.1 bar.
  • The figure shows a comparison of several starting methods. It can be seen that the frequency converter is slowly accelerated to start, the starting is more stable, and the current peak is completely avoided.
PM VSD Two-stage Screw Air Compressor

02 Air End

  • More stable, no mechanical transmission failure: high-efficiency permanent magnet synchronous motor and screw male rotor adopt embedded-integrated shaft direct connection structure, no gear transmission, completely eliminate gear pitting or broken teeth; Two independent permanent magnet motors are integrated directly drive two air ends, no coupling failures.
  • More energy efficient, the air end is always running at energy-saving speed.
  • More efficient and efficient permanent magnet motor + no transmission efficiency loss.
  • More comfortable, low running noise, eliminating three sources of noise: no-click bearing noise, no gear meshing noise, no coupling drive noise.
  • More compact: The permanent magnet motor is small in size and the integrated structure saves space.
  • Under the set frequency conversion pressure, the unit will automatically adjust to keep the output pressure within ± 0.1 bar, reducing unnecessary waste (the power consumption increases by 7% for every 1 bar of pressure increase)
PM VSD Two-stage Screw Air Compressor

03 Advantages of Permanent Magnet Motors Compared to General Asynchronous Motors

  • High efficiency: Eliminates excitation system losses and improves efficiency.
  • It is still efficient under low load conditions: the energy efficiency of a permanent magnet motor is more than 9% higher than that of a conventional asynchronous motor at full load operation, and its energy efficiency remains unchanged as the speed decreases.
  • Large overdrive torque: The ratio of the maximum starting torque of the permanent magnet synchronous motor to the rated torque can be more than 3 times, while the general asynchronous motor is only 1.6 times.
  • The control is more stable: the corresponding time of the permanent magnet motor is <50ms, and the gas production can be adjusted in a large range in an instant, so that the gas pressure is truly stable.
PM VSD Two-stage Screw Air Compressor

04 Stainless Steel Piping Design

  • The piping arrangement is simple and beautiful. Stainless steel piping design to effectively prevent rust in the pipeline, and avoid safety accidents caused by leakage of the pipeline.
PM VSD Two-stage Screw Air Compressor

05 More Advanced Technology. More Powerful Inverter

  • The standard equipment is equipped with a high-frequency reactor to reduce the high frequency generated by the inverter.
  • The soft start of the inverter reduces the peak current at startup, resulting in a smooth start and greatly reduced power costs.
  • Forced cooling of the inverter to prevent high temperature shutdown in Summer.
  • Standard equipment dust screen, circuit board surface coating treatment, high efficiency and durability against dirt, dust, moisture.
  • The special design of the heat dissipation area of the inverter ensures stable operation of the inverter under high temperature environment.
  • No idling occurs under any load conditions to achieve the desired power saving effect.
  • Quickly track changes in pressure, control pressure fluctuations within ±0.1 bar, and optimize the use of the power to accurately provide the right amount of air as needed.
PM VSD Two-stage Screw Air Compressor

06 Oil Filter

  • The imported brand is used to reliably filter the dirt particles in the lubricating oil to ensure the smoothness and lubrication of the oil system at 0.1 micron.
PM VSD Two-stage Screw Air Compressor

07 Air Filter

  • The imported brand is used to reliably remove dirt from the air. The dust particles in the air are controlled below 0.3 microns and the filtration accuracy is as high as 99.99%.
PM VSD Two-stage Screw Air Compressor
Two Groups PM VSD Screw Air Compressor (55-250 kW) Technical Parameters:
Model Maximum working pressure Capacity(FAD) Installed
motor power
IP Grade Noise level Dimensions(mm) Weight Air outlet
pipe diameter
Starting
Method
EEI
bar(g) psig m³/min cfm kw hp (L) (W) (H) kg
DAV-30+ 7

102

2.55-6.37 90-225 30 40 IP55 82 1650 1050 1300 945 R2

Direct Driven
Air Cooling
W-Water Cooling

EEI1
8 116 2.54-6.34 90-224
DAV-37+ 7 102 3.26-8.14 115-288 37 50 IP55 82 1650 1050 1300 1029 R2
8 116 3.20-8.00 113-283
DAV-45+ 7 102 4.00-10.01 141-354 45 60 IP55 82 1650 1050 1300 1100 R2
8 116 4.00-10.00 141-353
DAV-55+ 7 102 5.16-12.90 182-456 55 75 IP55 85 2350 1500 1600 1995 DN50
8 116 5.13-12.83 181-453
10 145 3.88-10.00 137-353
12.5 181 3.46-8.64 122-305
DAV-75+ 7 102 6.83-17.07 241-603 75 100 IP55 85 2350 1500 1600 2100 DN50
8 116 6.80-17.00 240-601
10 145 6.00-15.00 212-530
12.5 181 4.89-12.00 173-432
DAV-90(W)+ 7 102 8.36-20.90 295-739 90 120 IP55 85 2705 1775 1915 2625 DN80
8 116 8.02-20.05 283-709
10 145 6.58-16.44 233-581
12.5 181 5.91-14.77 209-522
DAV-110(W)+ 7 102 9.92-24.80 351-876 110 150 IP55 85 2705 1775 1915 2730 DN80
8 116 9.62-24.04 340-850
10 145 7.65-19.13 270-676
12.5 181 6.48-16.19 229-572
DAV-132(W)+ 7 102 11.45-28.63 405-1007 132 175 IP55 85 2705 1775 1915 3150 DN80
8 116 11.40-28.49 403-1006
10 145 9.20-23.01 325-813
12.5 181 8.64-21.59 305-763
DAV-160(W)+ 7 102 14.06-35.14 497-1242 160 215 IP55 85 3110 1890 2000 2150 DN100
8 116 14.00-34.64 495-1224
10 145 12.72-31.79 450-1123
12.5 181 10.53-26.33 372-931
DAV-185(W)+ 7 102 16.07-40.17 568-1420 185 250 IP55 85 3110 1890 2150 4725 DN100
8 116 16.00-40.00 565-1414
10 145 13.78-34.45 487-1217
12.5 181 11.56-28.89 409-1046
DAV-200(W)+ 7 102 17.78-44.45 628-1571 200 270 IP55 88 3310 2090 2400 5775 DN100
8 116 17.61-44.02 622-1556
10 145 15.53-38.83 549-1372
12.5 181 13.32-33.31 471-1177
DAV-220(W)+ 7 102 19.56-48.90 691-1728 220 300 IP55 88 3310 2090 2400 5880 DN100
8 116 19.51-48.77 689-1724
10 145 17.35-43.37 613-1533
12.5 181 15.23-38.08 538-1346
DAV-250(W)+ 7 102 21.98-54.94 777-1942 250 350 IP55 88 3310 2090 2400 5985 DN100
8 116 21.93-54.83 775-1938
10 145 19.38-48.45 685-1712
12.5 181 17.18-42.95 607-1518
DAV-280W+ 7 102 24.10-60.24 852-2129 280 375 IP55 88 3730 2380 2550 7350 DN125 Direct
Driven
W-water
Cooling
8 116 24.05-60.13 850-2125
10 145 21.33-53.22 754-1884
12.5 181 19.06-47.65 674-1684
DAV-315W+ 7 102 26.43-66.08 934-2335 315 425 IP55 90 3730 2380 2550 7455 DN125
8 116 26.39-65.97 933-2331
10 145 23.32-58.29 824-2060
12.5 181 20.94-52.34 740-1850
DAV-355W+ 7 102 29.90-77.00 1056-2719 355 475 IP55 90 3730 2380 2550 7875 DN125
8 116 29.25-75.32 1033-2660
10 145 24.97-64.29 882-2270
12.5 181 22.33-57.50 788-2030
DAV-400W+ 7 102 35.50-88.85 1255-3137 400 550 IP55 90 4500 2500 2750 9240 DN125
8 116 35.00-87.05 1237-3074
10 145 30.00-74.80 1060-2641
12.5 181 24.00-66.94 848-2364

*) FAD in accordance with ISO 1217:2009, Annex C: Ansolute intake pressure 1 bar (a), cooling and air intake temperature 20℃
**) Nosie level as per ISO 2151 and the basic standard ISO 9614-2, operation at maximum operating pressure and maximum speed; tolerance:±3 dB(A)

Specifications are subject to change without prior notice

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