DWS 160 VSD+Pumping speed 160 m³/hUltimate pressure 0.01 mbar
DWS 750 VSD+ 3Ph 380-460 V 50/60 Hz, with pneumatic inlet valve
The Atlas Copco DWS 750 VSD+ is a variable-speed dry screw vacuum pump with a pumping speed of 740 m³/h and an ultimate pressure below 0.01 mbar. It comes fully wired in an acoustic enclosure, with Elektronikon® controller and pneumatic inlet valve. Ehrler & Beck also supplies it without inlet valve.
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- Pumping speed 740 m³/h 50 Hz 740 m³/h 60 Hz
- Ultimate pressure 0.01 mbar
- Rated motor power 22 kW 50 Hz 22 kW 60 Hz
| Variant | Part number |
|---|---|
| 3Ph 380-460 V 50/60 Hz, with pneumatic inlet valve (selected) | 1950813600 |
| 3Ph 380-460 V 50/60 Hz, without inlet valve | 1950813602 |
| 3Ph 380-460 V 50/60 Hz, without inlet valve, rear outlet (RE) | 1950813604 |
Atlas Copco DWS 750 VSD+ – powerful screw pump with VSD+
The DWS 750 VSD+ reaches a pumping speed of 740 m³/h and an ultimate pressure below 0.01 mbar(a). At ultimate pressure it draws 10.5 kW, at full pumping capacity 22 kW (motor 22 kW). Dimensions 1650 × 613 × 1092 mm (L × W × H, with inlet valve), weight 575 kg, inlet DN 100 ISO-F, outlet DN 50 ISO-KF.Ready to connect and monitored
The IP54 acoustic enclosure contains the pump, frequency inverter and wiring. The Elektronikon® controller monitors status, running times and setpoints and can be operated remotely. The standard pneumatic inlet valve controls warm-up and shutdown and makes integration into central vacuum systems easier.Applications of the range
Atlas Copco lists freeze drying, packaging, roll and hard coating (CVD/DLC), glass coating, solar and LED manufacturing, silicon crystal pulling, PV lamination, load lock chambers, plasma processes such as plasma spraying, welding and nitriding, gas recovery and space simulation chambers.Variants of the DWS 750 VSD+
The DWS 750 VSD+ is available from Ehrler & Beck in three versions for 380–460 V at 50 or 60 Hz: with pneumatic inlet valve (1950813600), without inlet valve (1950813602) for simple system integration, and without inlet valve with rear outlet (1950813604); this version saves space when several pumps stand side by side. Even without an inlet valve, Atlas Copco recommends a valve in the system that closes when the setpoint pressure is reached or on shutdown. The version with rear outlet must not be moved with a forklift truck.Features of the DWS VSD+ range
- Integrated frequency inverter (VSD+): The speed follows the process; setpoint and speed control save energy under varying load
- Dry pumping chamber, gearbox protected against contamination, bearings with special low-vapour-pressure oil (PFPE)
- Rotors supported at both ends (no overhung bearings): fast start, very low vibration
- Constant-flow water cooling, gas ballast adjustable by hand, non-contact long-life seals
- Elektronikon® controller with remote monitoring; I/O, fieldbus and IoT connectivity
- Compact metal housing, fully wired and ready to connect (plug and play)
| Pumping speed 50Hz | 740 |
|---|---|
| Pumping speed 60Hz | 740 |
| Ultimate pressure | 0.01 |
| Rated motor power 50Hz | 22 |
| Rated motor power 60Hz | 22 |
| Weight | 575 |
| Length | 165 |
| Width | 61.3 |
| Height | 109.2 |
| Inlet connection flange | DN 100 ISO-F |
| Outlet connection flange | DN 50 ISO-KF |
| Noise level | 70 dB(A) |
| Cooling method | Water cooling |
| Oil type | PFPE |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Dry screw vacuum pump, variable-speed (VSD+), in an acoustic enclosure |
| Max. pumping speed | 740 m³/h |
| Ultimate pressure | < 0.01 mbar(a) |
| Power consumption at ultimate pressure / at max. pumping capacity | 10.5 / 22 kW |
| Rated motor power | 22 kW |
| Mains connection | 3Ph 380-460 V 50/60 Hz |
| Rotational speed | 1800 to 6600 rpm |
| Sound pressure level | < 70 dB(A) |
| Cooling water | Connection 3/8" BSP female, 12 l/min, max. 6.9 bar, min. 1 bar differential pressure, 5 to 40 °C |
| Barrier gas (purge) | Connection G 1/2" female, shaft seal purge 12 l/min |
| Gas ballast | 0 to 130 l/min |
| Bearing lubrication | PFPE Drynert 25/6, approx. 2.8 l |
| Max. gas inlet temperature | 110 °C (above 150 mbar), 80 °C (below that) |
| Max. exhaust back pressure | 1200 mbar(a) |
| Ambient temperature | 5 to 40 °C |
| Dimensions L × W × H | 1650 × 613 × 1092 mm with inlet valve, height without inlet valve 736 mm |
| Weight | 575 kg |
| Inlet / outlet | DN 100 ISO-F / DN 50 ISO-KF |
| Data as of | preliminary data according to the Atlas Copco data sheet (05/2022) |
| Product name | Part number |
|---|---|
| Outlet check valve NW 50 | A50790000 |
| Drainable exhaust silencer | M58810141 |
| Booster adapter DWS 750 VSD+ to ZRS 2600/4200 | M58810148 |
| Booster adapter DWS 750 VSD+ to DRB 1000/1500 VSD+ | 3002615140 |
| Booster adapter DWS 750 VSD+ to DRB 2000/3000 VSD+ | 3002615143 |
| Purge-free kit | M58810144 |
| Inlet valve kit | M58810145 |
| Profibus kit | M58810147 |
| Castor kit | M58810149 |
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