Travaini TRVB40-110 comes as a monoblock with electric motor. Up to 28" HG , a CFM of 30-145 and speed RPM of 1750. 5HP motor. Single stage variable ported liquid ring vacuum pump. Travaini pumps are globally known for their liquid ring pumps. They are single stage vari-ported rotating pump and their bearing are located on the exterior, and grease lubricated. Suitable for medium to high vacuum, the liquid ring vacuum pumps can handle non-condensable gas with higgh volumes of vapours, condensables and liquids. The cooling system can be water or oil based.