JZJWLW series reciprocating Roots vacuum pump unit

The JZJWLW oil-free vertical vacuum unit uses a Roots vacuum pump (also known as a Roots booster pump) as the main pump and a WLW oil-free vertical vacuum pump as the backing pump. It can be operated through an electric contact pressure gauge and an electric contact vacuum gauge. Vacuum acquisition equipment to realize automatic opening and closing of Roots vacuum pumps and oil-free vacuum pumps, automatic protection and safety protection of the entire unit. It is widely used in vacuum distillation, vacuum coating, chemical fiber, metallurgy, heat treatment, welding, chemical industry and other industries. Processes such as crystallization, drying, and steam-bonding of polyester slices.

The Roots vacuum pump has excellent pumping characteristics (large pumping speed at low pressure), and when used as a back-stage vacuum pump within the ultimate vacuum range of the Roots vacuum pump, it can always achieve an order of magnitude higher vacuum than the front-stage vacuum pump ( For example, if the front-stage vacuum degree is 100Pa, and a Roots vacuum pump is used as the back-stage vacuum pump, it can be increased to 10Pa, and so on). Since there is no mechanical contact between the rotor of the Roots vacuum pump and the rotor and the pump cavity, no lubrication is required, so its power loss is significantly less than other types of mechanical vacuum pumps with the same pumping speed. In addition to the characteristics of general Roots vacuum units, the use of an oil-free vacuum pump (the flow-passing part of this product adopts oil-free lubrication and oil-free sealing technology) as a backing pump can improve vacuum cleanliness and obtain a clean vacuum, especially It is suitable for industrial processes that remove gases that react with oil and non-condensable, non-compressible solidifying gases (such as CO2/cyclopentadiene, benzene, toluene, alcohols, etc.).