JZJ2BE series Roots water ring unit is an air extraction unit composed of ZJ type Roots pump as the main pump and 2BE1 series water ring pump as the backing pump. In addition to extracting general gases, it can also extract gases containing moisture, organic solvents or a small amount of dust. Compared with ordinary mechanical vacuum pumps, it is not afraid of oil pollution, water vapor and dust. Compared with ordinary water ring vacuum pumps, it has the characteristics of high vacuum degree and high pumping speed under high vacuum conditions.

The working fluid of the backing pump of the Roots water ring vacuum unit mostly uses water, but it can also use organic solvents (organic solvents such as methanol, ethanol, xylene, acetone, etc.) or other liquids. The backing pump is used as a closed-circuit circulation system. It greatly reduces environmental pollution and greatly improves the recovery of organic solvents. Its ultimate vacuum degree is determined by the saturated vapor pressure of the working fluid.

The complete unit consists of Roots pump, water ring pump, pipelines, valves, steam-water separator, electric control box, etc. The biggest feature of this series of units is that it can eliminate gases containing dust and a large amount of condensable vapor. It avoids the shortcomings of other units' condensable gases in emulsifying mechanical pump vacuum oil, and can eliminate the contamination of vacuum pump oil to the vacuum system. . This unit is widely used in vacuum smelting, liquid steel degassing, vacuum freeze drying, vacuum distillation, vacuum concentration, vacuum suction, vacuum sublimation, etc. It is especially suitable for petrochemical, textile, papermaking, food and pharmaceutical industries.