Liquid Ring Vacuum Pump Includes Motor No Number of Stages 1 Motor Type Pedestal Bare-Shaft Free Air Flow Rate 100 cfm Maximum Vacuum 29 in Hg Output Power 7.5 hp Housing Material Cast Iron Impeller Material 316 Stainless Steel Inlet Size 1 1/2 in Inlet Type Flange Outlet Size 1 1/2 in Outlet Type RF Flange Maximum Speed 1 750 RPM