Oilsyst vacuum systems is an engineered vacuum package developed by Everest vacuum for waste oil distillation plants and edible oil refining plants which consist of a two/three-stage configuration of vacuum pumps along with cyclone separator, intermediate condenser with receiver & filter trap units. The backup pump used is a liquid ring vacuum pump that has been specially modified to run oil/alternate sealing fluid typically the same/similar medium as the process vapor to avoid contamination leading to a drop in performance. Thus, these machines when used in combination with a roots vacuum pump (mechanical vacuum booster) offer a high level of ultimate vacuum up to 0.01 mbar. We offer 6 different configurations 3,000m3/hr -> 30,000 m3/hr pumping speed at machine inlet at duty point vacuum making them an ideal choice for used oil distillation, waste oil distillation and other similar oil distillation applications.