The physical properties of the sealing oils mean that they do not degrade even at high operating temperatures This considerablly increases the performances of a liquid ring pump compared to a pump operating with water.
High and Constant Vacuum
The vapor pressure which is considerably lower than that of water at 15°C and the perfect sealing of the liquid ring allow a high and constant vacuum, even at high gas temperatures.
No Need of Service Water
Thanks to the recirculation of oil in the pump and the use of a very low power air/oil exchanger the consumption of water can be totally eliminated. This means great savings in operating costs.
The circulation oil continually lubricates the internal parts of the pump without leaving deposits of any kind. This protects the pump components from wear and prolongs their operating life. The service and maintenance intervals are long, keeping life cycle costs low.
Removing Gas Saturated with Vapor
The exclusive built-in systems for separating the extracted condensate from the service oil enables the removal of high percentage of vapor-saturated gas. The clean condensate is then discharged.
Low Noise Levels
Noise levels are much lower than demanded by law.
Special horizontal separator mounted directly on the pump, with inspection port and accessories
Accumulation tank with built-in trap, inspection port, level indicator, discharge valve and vent valve
Special electric frame with overload relays for the auxiliary motor
Main electric starter as per IEC EN60439-1 standards, completely cabled and supported
Discarge gas scrubber with oil recovery - certificate of compliance included
They are typically used for
Gieffe Systems is part of Gardner Denver, Inc., a leading global manufacturer of highly-engineered, critical flow-control products, Gardner Denver is headquartered in Milwaukee, Wisconsin, USA and has facilities in more than 30 countries. To learn more about the company, visit