1,Famous Brand (OEM Allowed) 2,Certificates:CE,UL,RoHS,CCC 3, ... technology and are typically used in liquid ring vacuum pump applications.but can also be used as a ... to a considerable reduction in the performance of the pump. Elmo Rietschle liquid ring pumps, however, meet ... lime scale Applicantion:1,Asphalt-thickening machines(steamrollers)2,Corrosion protection for water pipes3,Drying systems4,Dust ...