... eject.Providing vacuum condition for the processes of evaporation, distillation, crystallization, drying, sublimation, filtration and decompression, ... agricultural engineering, biological engineering.II. The characteristics of vacuum pump: A. Cyclically use water, save the ... Water TankPPDimensions385L*280W*420HWeight11VI. The pictures of vacuum pump:Low temperature pump(left)+Rotary evaporator( ...