Ejector Systems
Ejectors
The basic principle of jet pumps consists in the liquid or gas jet being emitted by a nozzle at high speed entraining and accelerating the surrounding liquid, gas or solid matter.
1= motive nozzle, 2 = diffuser, 3 = head, A = motive medium inlet connection, B = suction manifold, C = pressure manifold
How do ejectors work?
The result of this action is a mixture of the driving and entrained (sucked) fluids, the velocity of which is reduced and the pressure increased in a second nozzle.
The practical application of this principle requires a simple apparatus which essentially consists of only 3 main parts:
- motive nozzle
- diffuser
- head
Ejectors, also known as jet pumps, have a simple design, they are reliable and require low maintenance because they work without moving parts.
Downloads
Related Products
High Corrosive Resistant Vacuum Systems
Multi-stage steam jet vacuum pumps in graphite for corrosive applications.
Variable - Flow Ejectors
Variable - Flow Ejectors are based on proven GEA jet pump technology and often used for heat recovery.
Steam Jet Cooling Systems
Steam jet cooling systems are based on proven jet pump technology and often used to cool a liquid directly without any additional refrigerant by means of flashing into the vacuum.
Combined Steam Jet and LRVP Systems
Combined Steam Jet and LRVP Systems are based on proven jet pump technology and often used to create and maintain the vacuum.
Related Videos
Explore the Potential of Jet Pumps
Jet pumps / Ejectors working principle
GEA Insights
Farmers reap benefits of tailored GEA batch milking system
Automated milking has become the first choice for many modern dairy farms. The benefits are compelling, and with a new batch milking solution from GEA, automated group milking for large dairy herds is possible without the need – and expense – of rebuilding existing facilities.
GEA earns EcoVadis Platinum again – with higher score
GEA has once again earned the highest rating – Platinum – in the globally recognized EcoVadis sustainability assessment. With a score of 92 out of 100, the machinery and plant manufacturer has improved significantly from last year’s result of 82 points. For the second year in a row, GEA ranks among the top one percent of more than 150,000 rated companies across 185 countries.
How Carlsberg keeps 10,000 valves in play
At Carlsberg’s Fredericia brewery, GEA VARIVENT valves are part of a long-game strategy. By reusing core valve bodies, retrofitting actuators and control tops, and planning maintenance around brewing seasons, Carlsberg extends asset life, reduces downtime and supports its ambitious water and sustainability targets.
