Rotajector systems were developed by Croll Reynolds vacuum engineers in the 1970s to address rising energy costs.

Rotajector systems are high-efficiency combination ejector-liquid ring vacuum pump systems wherein the liquid ring pump replaces the final ejector stage of the system to reduce steam consumption.

Rotajectors are highly reliable, with only one moving part. They handle a wide range of gasses,vapors, particulates and contaminants without the need for filters separators or traps.

The process gases to be handled by the Rotajector system are drawn in through the suction inlet of the first stage ejector and compressed by the ejector stage(s) to an inter-stage condenser.

The interstage condenser cools the gases and condenses the vapors, reducing the load to be handled by the liquid ring vacuum pump. The liquid ring vacuum pump serves as the final compression stage. The condensate from the interstage condenser drains directly into the pump suction port. Pressurized steam is required for operation of the ejector stages and a continuous flow of sealant water and electrical power is required for operation of the liquid ring pump.

The liquid ring vacuum pump is designed to replace replace the final ejector stage(s), thus reducing steam consumption.

Rotajectors can be installed at ground level eliminating the need for barometric condensate piping.

Rotajectors can be operated using low pressure steam, eliminating the need for high-pressure boilers.

Each rotajector system is custom designed, with the liquid ring vacuum pump size optimized to match the ejector design.

To learn more about high-efficiency rotajector systems, and to discuss your specific process or application, contact the Croll Reynolds vacuum engineer in your area or call our US offices to speak with our design engineers.

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