Liquid Ring Vacuum PumpsSingle-Stage Liquid Ring Vacuum Pump
Single-stage liquid ring vacuum pump, 22 sizes: 2.7–440 m³/min, down to 33 mbar abs. Stainless, duplex, titanium and Hastelloy. For power, chemical, paper.

Two-stage liquid ring vacuum pump for stable high vacuum (33–150 mbar): 10–95 m³/min, cavitation-resistant, low noise. Ideal for power-plant condenser vacuum.
For processes that run permanently at high vacuum, a two-stage liquid ring pump delivers more stable capacity than a single-stage pump. The first stage pumps the gas, the second compresses it to atmosphere – which keeps performance high between 33 and 150 mbar and avoids cavitation.
This pump is the upgrade path for older condenser vacuum packages in power stations: higher efficiency at the operating point, lower noise and lower long-term operating cost.
Front and rear impellers and pump bodies are separate, and observation ports in both side covers let you check the condition of the main parts without dismantling the pump. Replacement parts are inexpensive.
A rigid structure suits harsh industrial environments; the new hydraulic model gives stable pumping with very low noise at high vacuum.
When the process runs continuously below about 150 mbar absolute, where a single-stage pump loses capacity and risks cavitation.
Yes, it is designed as an energy-saving retrofit for older power-plant vacuum units. Send us the existing data.
Flow rate, head or vacuum level, the liquid or gas and its temperature, required materials, motor voltage and frequency, and any standard or ATEX zone. A data sheet or the nameplate of an existing pump is ideal.
Need a quotation for the Two-Stage Liquid Ring Vacuum Pump? Send us your requirements and the delivery address – we reply with a technical proposal, price and lead time. Request a quote.
| Capacity | 10–95 m³/min |
|---|---|
| Best operating range | 33–150 mbar abs. |
| Stages | Two separate impellers and pump bodies |
| Sizes | 3 frame sizes |
| Inspection | Observation ports on both side covers |
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Liquid Ring Vacuum PumpsSingle-stage liquid ring vacuum pump, 22 sizes: 2.7–440 m³/min, down to 33 mbar abs. Stainless, duplex, titanium and Hastelloy. For power, chemical, paper.
Liquid Ring Vacuum PumpsCompact cantilever liquid ring vacuum pump: 0.45–7.67 m³/min, 33 mbar abs., oil-free, anti-cavitation valve. For food, pharma, plastics and water works.
Liquid Ring Vacuum PumpsEnergy-saving large liquid ring vacuum pump: 80–600 m³/min, 200–1013 mbar. Low impeller tip speed, SEBF coating, interchangeable with existing installations.
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