DGV Variable-Speed Direct-Drive Screw Air Compressor (22–250 kW)
Screw Air CompressorDrive
Direct coupled through a flexible coupling, variable speed.
Variable frequency drive
Inovance or Delta as standard; ABB, Schneider or Danfoss available where the combination is available for the model.
Airend
Assembled and tested in our own plant. Rotors come from a qualified airend supplier; we do not claim in-house rotor development.
Bearings
SKF or NSK, depending on model and batch.
Electrical components
Schneider contactors and protective devices.
Control system
Siemens S7-200 SMART. Pressure band, loading hours and fault history readable on site.
Motor
Wolong or Wannan standard. Siemens or ABB, and IE4 / IE5 high-efficiency, available as options.
Testing before dispatch
Performance bench plus acoustic room. Records ship with the unit.
Product Advantages:
- Direct coupled and variable speed together: no belt losses and no load/unload band.
- Speed tracks demand across the shift; the controller logs pressure band and loading hours.
- Assembled and tested in our own plant; rotors from a qualified airend supplier.
- Bearings SKF or NSK, electrical components Schneider, control Siemens S7-200 SMART.
- Performance run on our test bench and noise checked in our acoustic room before dispatch.
- Test records travel with the shipment, so the numbers on this page can be checked against your unit.
No catalogues available.
Free Consultation:
If you are interested in our products, please contact us via email: info@example.com or send your inquiry in the form below, we will reply you within 24 hours.
DGV model range — 22 to 250 kW
Direct drive plus variable speed. Eleven models across four pressure tiers.
| Model | m³/min 0.7 MPa | m³/min 0.8 MPa | m³/min 1.0 MPa | m³/min 1.2 MPa | Motor kW | Weight kg | L×W×H mm | Outlet | Noise dB(A) |
|---|---|---|---|---|---|---|---|---|---|
| DGV-30A | 3.60 | 3.56 | 3.07 | 2.84 | 22 | 660 | 1270×800×1190 | G1" | 63±2 |
| DGV-50A | 6.58 | 6.26 | 5.80 | 5.06 | 37 | 840 | 1500×930×1380 | G1 1/2" | 63±2 |
| DGV-75A | 10.8 | 10.1 | 8.50 | 7.69 | 55 | 1480 | 1750×1040×1520 | G2" | 68±2 |
| DGV-100A | 13.5 | 12.7 | 11.3 | 10.0 | 75 | 1650 | 1850×1100×1820 | G2" | 68±3 |
| DGV-120A | 16.2 | 15.2 | 14.3 | 12.9 | 90 | 1800 | 2180×1260×1750 | DN65 | 68±3 |
| DGV-150A | 21.6 | 20.1 | 17.5 | 16.0 | 110 | 2650 | 2330×1370×1790 | DN65 | 68±3 |
| DGV-175A | 25.2 | 24.0 | 21.0 | 18.3 | 132 | 3150 | 2500×1370×2000 | DN65 | 72±3 |
| DGV-200A | 28.7 | 27.6 | 25.3 | 22.4 | 160 | 3480 | 2760×1550×2100 | DN80 | 72±3 |
| DGV-250A | 32.5 | 30.8 | 28.2 | 25.1 | 185 | 3850 | 2760×1550×2150 | DN80 | 72±3 |
| DGV-300A | 36.8 | 34.7 | 30.8 | 28.9 | 220 | 4500 | 3100×1700×2200 | DN100 | 76±2 |
| DGV-350A | 42.7 | 40.8 | 38.1 | 34.9 | 250 | 4800 | 3100×1700×2200 | DN100 | 76±2 |
Quoted capacities at rated speed. Turndown range and specific power curve to be confirmed per model. 380 V 3 phase 50 Hz.
