Vacuum Technology
Liquid Jet Vacuum Pump
Liquid jet vacuum pumps are based on proven jet pump technology and often used in chemical laboratories for the production of vacuum.
Applications
Liquid jet vacuum pumps with threaded connections are mainly used in chemical laboratories for the production of vacuum, for example in vacuum distillation or drying.
They are also used for evacuating syphon lines, suction lines of circulating pumps and condensers; for deaeration of pressure vessels and for producing negative pressure in Nutsch filters.
Mode of operation
Liquid jet vacuum pumps, when water is used as the motive medium, can be directly coupled to the water line. If, however, the water consumption has to be as economical as possible, the operating water may be circulated. This is also the case when other liquids are used as the motive medium, instead of water.
The temperature of the operating liquid may be kept low by the constant addition of a small quantity of fresh liquid. Higher vacuum can be achieved by further cooling of the operating liquid. This is particularly expedient when the suction flow contains condensable components, e.g. solvents. In such a case the vacuum pump can be operated by using the condensate as the motive medium.
The lowest suction pressure which can be obtained with a suction capacity of zero (blind vacuum) corresponds to the vapor pressure of the motive liquid which depends on the temperature of the liquid.
The action of liquid jet pumps is based on the fact that the liquid jet coming out of the motive nozzle at high speed entrains air, gas, liquid or solid matters from the head of the jet pumps and compresses them to atmospheric pressure.
For more detailed information on structure and mode of operation of jet pumps please refer to “Product catalogue”.
Advantages
- No moving parts
- Maintenance-free
- Can be installed in virtually all situations
- Quickly and easily put into operation
- Almost unlimited life, when a suitable material of construction is chosen
- Can be manufactured from various materials of construction
- Low acquisition costs
Downloads
Related Products
Air jet vacuum pump
Air jet vacuum pumps type lvp1 are based on proven jet pump technology and often used when no steam is available as motive medium.
Ejector Test facilities at Karlsruhe R & D Center
With state-of-the-art pilot plants and test benches our R & D Center is optimally equipped for testing in the fields of jet pumps and vacuum systems.
Gas jet compressor
Gas jet compressors are based on proven jet pump technology and often used to mix and compress gases.
Gas jet vacuum pump
Gas jet vacuum pumps are based on proven jet pump technology and often used to evacuate pipelines, vessels, and plants. They are used to mix and compress gases.
GEA Insights
Fueling the circular economy in shipping
Ports now compete not just on logistics, but on sustainability. At Greece’s Piraeus port, an advanced processing and recovery facility recycles ship waste oil into fuel. Equipped with GEA’s high-performance centrifuges, it sets a new benchmark for state-of-the-art, environmentally responsible port operations.
Closing the loop: key lessons for breweries from OeTTINGER
The 2022 CO2 shortage forced breweries to review their dependency on global supply chains. Many were forced to close, unable to carbonate their products. At its breweries in Germany, OeTTINGER GETRÄNKE is turning its own CO2 into a powerful lever for independence and sustainability – with the help of CO2 recovery technology from GEA.
Staying the course: Q&A with GEA's Chief Sustainability Officer
In a shifting political and economic landscape, GEA stays the course. We spoke with Dr. Nadine Sterley, GEA’s Chief Sustainability Officer, about why sustainability remains central to the company’s business strategy, how GEA is progressing on its ambitious goals and what it takes to turn words into action.
