Closed-Loop Oil Sealed Liquid Ring
Q-VAC priming systems using closed-loop, oil-sealed liquid ring vacuum pumps are a Q-VAC innovation that combines many of the best features from oil-lubricated rotary vane systems and water-sealed liquid ring vacuum systems. By utilizing a small oil reservoir, multi-stage discharge air filtration, and an air-cooled heat exchanger in a closed loop arrangement, the vacuum pump is able to run continuously without ever needing water.
Due to the lower vapor pressure of oil in comparison to water, the vacuum pump can be run at significantly higher temperatures without affecting performance or durability. This reduces the size and cost of the heat exchanger that is needed and helps reduce water vapor from condensing inside the pump. Additionally, because oil is used as a seal fluid, and not a lubricant, the oil change interval is not critical which results in lower maintenance.
Q-VAC’s closed-loop, oil-sealed liquid ring vacuum pump priming systems are available in sizes from 1.5 HP and larger. PLC controls are standard to provide increased safety, enhanced features, and the most reliable operation. AutoPurge is optional.