It is guaranteed that rotary vacuum pump can start normally in the low temperature of winter. It is applicable to vacuum packaging, vacuum free. It also can be used alone, also can be used as booster pump, diffusion pump, molecular pump and backing pump. Besides, it can be used for vacuum metallurgy, vacuum welding, vacuum impregnation, coating, vacuum drying and chemical pharmaceutical, electric vacuum components and other industrial vacuum operation.
Mainly used for transporting liquid or solid materials in paper making,coal,mine,electric power food, unban sewage industry,etc.