The 2BV series water ring vacuum pump is a single-stage pump with an overall structure—the pump is coaxial. Since the gas compression process is isothermal in the working process, it is not easy to explode when compressing and sucking inflammable and explosive gas, so its application is more extensive.

The 2BE water ring vacuum pump adopts a single-stage single-acting structure. 2BE water ring vacuum pump has the advantages of simple structure, reliable operation, convenient maintenance, high efficiency and energy saving. 

2BE water ring vacuum pumps and compressors are usually used to pump gas that does not contain solid particles, is insoluble in water, and is non-corrosive, so as to form a vacuum and pressure in a closed container. 

In the working process, the gas compression by the pump is isothermal, so it can suck flammable and explosive gas. 

The ultimate pressure of 2BE1 series water ring vacuum pumps is 33mbar, and that of 2BE3 series water ring vacuum pumps is 160mbar.