
VacuStar WR 2500 to 4000 – liquid ring
High-performance vacuum pumps up to 4,063 m³/h
The WR 2500, WR 3100 and WR 4000 are the high-performance models of the liquid ring range. With up to 4,063 m³/h, they are among the most powerful liquid ring vacuum pumps on the market.
They are built for large suction and jetting vehicles in industrial cleaning.
Flow rate
2,500 to 4,063 m³/h
Vacuum
down to 130 mbar
Pressure
1.0 to 1.5 bar (g)
Power requirement
77 to 131.5 kW
Why VacuStar WR 2500 to 4000?
The stainless steel impeller and ceramic-coated housings withstand abrasive and corrosive media. Swivelling connections and a swivelling pump housing make installation easy.
- High-performance liquid ring compressor vacuum pump for suction and jetting vehicles, up to 4,063 m³/h
- Pump mounted so that it can swivel between the mounting feet
- Suction and pressure flanges either on the shaft side or opposite, swivelling connection flanges
- Mechanical seal, only one water drain
- Lightweight design thanks to aluminium
- Option: ceramic-coated housing and cover, resistant to acids and alkalis
- Option: stainless steel V2A impeller
- Option: integrated cell ventilation protects against cavitation
- Option: V-belt or hydraulic drive
- ATEX version available
Application
Suction and jetting vehicles
Sewer cleaning, also with water recycling.
Industrial cleaning
Large-area cleaning with high air throughput.
Potentially explosive atmospheres
ATEX-certified versions.
Technical data
| Model | Max. intake flow rate | Max. operating pressure | Max. operating vacuum | Rated speed range | Max. power requirement | Sound pressure level | Weight |
|---|---|---|---|---|---|---|---|
| [m³/h (cfm)] | [bar g (psig)] | [mbar (HG")] depending on cooling water temperature | [1/min (rpm)] | [kW (hp)] at 0.5 bar g / 7.25 psig | [dB(A)] at 7 m distance, at 400 mbar / 18 HG" | [kg (lb)] | |
| VacuStar WR 2500 | 2500 (1470) | 1,5 (21,3) | 130 / 26 | 800 – (1600) | 77,0 (105) | 70 | 175 (385) |
| VacuStar WR 3100 | 3100 (1825) | 1,5 (21,3) | 130 / 26 | 800 – (1600) | 94,0 (128) | 72 | 192 (422) |
| VacuStar WR 4000 | 4063 (2391) | 1,0 (14,5) | 130 / 26 | 800 – (1300) | 131,5 (176) | 73 | 298 (657) |
Frequently asked questions
Is there an ATEX version?
Yes, ATEX-certified versions are available.
What protects the pump against cavitation?
The integrated cell ventilation. It considerably extends the service life of the pump.
How is the compressor driven?
Depending on the vehicle, via power take-off and cardan shaft, V-belt or hydraulic motor. We work out with you and the body builder which drive is right.
Who supplies, installs and maintains it?
We do. As CVS representative, we supply compressors and vacuum pumps, advise on installation in the vehicle and take care of maintenance and repairs.
Downloads

Which unit suits your vehicle?
The vehicle, the goods transported, the drive and the required unloading time determine the choice. We size the unit with you and your body builder and take care of the service.