2SAT (double stage), 2STC double stage), SKC (single stage) series cone type liquid ring vacuum pumps adopt the international advanced manufacture technology. The cone type allotter structure make the area of suction and discharge port end, flow resistance minish, the speed of pumping enhance, the energy conservation effect is obvious.The base exhaust structure reduces the bearing stress, the service life is long, safe and reliable. This kind of product especially qualify processes of the high dust gas, including the soft fiber unclean gas, with partial liquids the gas, the high temperature gas, virulent or caustic gas and so on , widely applied in electric power, papermaking, petrochemical, coal etc industries.