... displacement technology and are typically used in liquid ring vacuum pump applications.but can also be used as a gas, ... :1,Asphalt-thickening machines(steamrollers)2,Corrosion protection for water pipes3,Drying systems4,Dust extraction in the mining industry5, ... fat from particies in hydrocarbons11,Systems to lower the water table Show: L-series liquid ring vacuum pump,ceramic coating water ring pump