Ehrler & Beck Vakuum- und Drucklufttechnik GmbH
Ehrler und Beck

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DWS 160/1750 VSD+ 3Ph 380-460 V 50/60 Hz

The Atlas Copco DWS 160/1750 VSD+ is a combination of the variable-speed screw vacuum pump DWS 160 VSD+ and a Roots pump mounted on top, with a pumping speed of up to 1200 m³/h and an ultimate pressure of 1 × 10⁻³ mbar. The integrated frequency inverter matches the speed to the process and saves energy. Ehrler & Beck advises on sizing and accessories.

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  • Pumping speed 1,200 m³/h 50 Hz 1,200 m³/h 60 Hz
  • Ultimate pressure 1 × 10-3 mbar
  • Rated motor power 12 kW 50 Hz 12 kW 60 Hz
Available variants
Variant Part number
3Ph 380-460 V 50/60 Hz (selected) 1950813608

Atlas Copco DWS 160/1750 VSD+ – screw pump and booster in one unit

The DWS 160/1750 VSD+ reaches a pumping speed of up to 1200 m³/h and an ultimate pressure of 1 × 10⁻³ mbar(a). At ultimate pressure it draws 5.1 kW, at full pumping capacity 7.4 kW; the installed power is 7.5 kW (screw pump) + 4.5 kW (booster). Dimensions 1265 × 520 × 827 mm (L × W × H), weight 514 kg, inlet DN 100 ISO-F, outlet DN 40 ISO-KF. The sound pressure level is below 64 dB(A).

Combined at the factory

For processes that need a high pumping speed at high pressures and at the same time a low ultimate pressure, Atlas Copco combines the screw pump with a Roots pump. The pumping speed thus rises to up to 1200 m³/h and the ultimate pressure drops to 1 × 10⁻³ mbar.

Applications of the range

Atlas Copco lists battery manufacturing, the electrical industry, CO₂ capture, food packaging, and plastics processing and recycling.

Version

Ehrler & Beck lists the DWS 160/1750 VSD+ under part number 1950813608 for 380–460 V at 50 or 60 Hz. Atlas Copco marks the performance data as preliminary.

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)
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