Lubricated Rotary Vane Systems are designed to provide high reliability while operating on process streams heavily ladened with solvents and acids. This chemical dry pump has been designed to minimize the generation of contaminated waste and to eliminate the pollution of large liquid volumes, typical of other technologies. It incorporates a pump on an oil mist eliminator and condensate tank for applications requiring the collection of exhaust condensate and mist-free emissions. The low fresh oil level and high exhaust condensate level switches are integral to the pump to provide safe and reliable operation.