Jzj series Roots water ring pumping unit is a pumping unit composed of ZJ Roots pump as main pumping pump, 2BV series water ring pump / 2BE1 series water ring pump / SK series water ring pump or roots water ring unit as front stage pump. It can not only be used to pump general gases, but also can pump gases containing water, organic solvents or a small amount of dust. Compared with the general mechanical vacuum pump, it is not afraid of oil pollution, water vapor and dust. Compared with the general water ring vacuum pump, it has the characteristics of high vacuum degree and high pumping speed under high vacuum condition.

 

The working fluid of the front stage pump of roots water ring vacuum unit is mostly water, or organic solvents (methanol, ethanol, xylene, acetone and other organic solvents) or other liquids. The front stage pump is used as a closed-circuit circulation system, which greatly reduces the pollution to the environment and improves the recovery of organic solvents. The limit vacuum is determined by the saturated vapor pressure of the working fluid.

Note:

 

1. The above table is a series of recommended standards. Due to the different working conditions in the actual production and application, the inhalation gas and pressure will change a lot. Therefore, the selection should be checked and calculated according to the actual extraction process, gas release process, condensable gas condensation, time variation of inhalation pressure, etc., or the selection should refer to the use of existing equipment.

2. The technical indexes of single pump are shown in the parameter table of each pump.

3. The maximum suction pressure refers to the maximum pressure that the main pump can start. If the main pump runs for a long time under the pressure, it will cause overload of the main pump.

4. If the vacuum pump motor, electric contact vacuum meter and electric control cabinet need explosion-proof, please indicate when ordering. 2bv2 and 2bv5 Series in the above table are changed to 2bv6 series.