This unit is a complete set of vacuum equipment, which treates roots pump as the main pump, rotary-vane (or slide valve) vacuum pump as prepump equipped with solenoid valve and pipes.
This equipment has the features such as compact structure, easy to operate, good capacity of extracting and short time extracting.It is widely used in the equipments such as vacuum metallurgy, vacuum degassing, vacuum coating, and space simulation, low-density wind tunnel to extract corrosive gas. It can also be used in the manufacturing process such as distillation, evaporation and drying in the industries such as medicine, food, electronics, chemicals.
Filter or condensers must be equipped for some processes with more water and dusts. In addition, two-stage water-ring pump can be use for rough pumping so a large quantity of water and dusts are extracted by water-ring pump. And then the normal life of the unit can be extended.