Edwards Drystar GV80Pumping speed 82 m³/hUltimate pressure 0.03 mbar
DZQ 80 3Ph 380/400 V 50 Hz, 230/460 V 60 Hz, IE4-Motor
The Atlas Copco DZQ 80 is a dry-running, water-cooled claw vacuum pump with a pumping speed of 80 m³/h at 50 Hz (94 m³/h at 60 Hz) and an ultimate pressure below 3 × 10⁻² mbar. It handles condensable vapours and dust without oil in the pumping chamber. Ehrler & Beck supplies it with an IE4 motor.
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- Pumping speed 80 m³/h 50 Hz 94 m³/h 60 Hz
- Ultimate pressure 0.03 mbar
- Rated motor power 4 kW 50 Hz 4 kW 60 Hz
| Variant | Part number |
|---|---|
| 3Ph 380/400 V 50 Hz, 230/460 V 60 Hz, IE4-Motor (selected) | 1950813620 |
Atlas Copco DZQ 80 – dry claw pump for demanding processes
The DZQ 80 delivers up to 80 m³/h at 50 Hz and 94 m³/h at 60 Hz and reaches an ultimate pressure below 3 × 10⁻² mbar. At ultimate pressure it draws 3.6 kW, at full pumping capacity 5.8 kW; the motor delivers 4 kW (IE4). Dimensions 850 × 454 × 312 mm (L × W × H), weight 162 kg, inlet DN 40 ISO-K, outlet DN 40 ISO-KF.Clean, robust and low-maintenance
There is no oil in the pumping chamber – oil changes and waste oil disposal are not needed, and the pumped gas stays clean. The pump tolerates dust and particles and also pumps large quantities of condensable vapours in continuous operation. The water cooling keeps the temperature constant; nitrogen or compressed air can be fed in via the purge gas connection. Since August 2025 Atlas Copco has supplied the DZQ 80 with an IE4 motor (efficiency 90.0 % at 50 Hz, 89.5 % at 60 Hz) instead of IE3.Applications
Atlas Copco lists pharmaceuticals, research and development, the evacuation of systems and surface treatment.Version
Ehrler & Beck lists the DZQ 80 under part number 1950813620 for 3Ph 380/400 V at 50 Hz and 230/460 V at 60 Hz.Features
- Dry claw principle: no oil in the pumping chamber, no oil change and no waste oil disposal
- Pumps large quantities of condensable vapours in continuous operation
- High tolerance to dust and particles from the process
- Water-cooled, purge gas connection for nitrogen or compressed air
- IE4 motor (since August 2025) for lower energy consumption
- Low operating costs and simple maintenance
| Pumping speed 50Hz | 80 |
|---|---|
| Pumping speed 60Hz | 94 |
| Ultimate pressure | 0.03 |
| Rated motor power 50Hz | 4 |
| Rated motor power 60Hz | 4 |
| Motor efficiency class | IE4 |
| Weight | 162 |
| Length | 85 |
| Width | 45.4 |
| Height | 31.2 |
| Inlet connection flange | DN 40 ISO-K |
| Outlet connection flange | DN 40 ISO-KF |
| Noise level | 78 dB(A) |
| Cooling method | Water cooling |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Dry-running claw vacuum pump, water-cooled |
| Max. pumping speed 50 Hz / 60 Hz | 80 / 94 m³/h |
| Ultimate pressure | < 3 × 10⁻² mbar |
| Power consumption at ultimate pressure / at max. pumping capacity | 3.6 / 5.8 kW |
| Motor | 4 kW, IE4 (since August 2025), degree of protection IP55 |
| Mains connection | 3Ph 380/400 V 50 Hz, 230/460 V 60 Hz |
| Speed 50 Hz / 60 Hz | 3000 / 3600 rpm |
| Sound pressure level with exhaust silencer | < 78 dB(A) |
| Cooling water | 8 l/min, 5 to 35 °C, max. 8 bar(a), min. 2.1 bar differential pressure, connections 1/2" quick coupling (counterparts included) |
| Purge gas (N₂ or compressed air) | typically 15 Nl/min, connection 1/4" quick coupling |
| Max. exhaust back pressure | 1.3 bar(a) |
| Gearbox lubrication | 0.4 l hydrocarbon oil SHC 629 |
| Warm-up time up to operating temperature | 15 min |
| Ambient temperature | 0 to 40 °C, up to 100 % relative humidity |
| Dimensions L × W × H | 850 × 454 × 312 mm (IE4-version) |
| Weight | 162 kg |
| Inlet / outlet | DN 40 ISO-K / DN 40 ISO-KF |


