Detailed Product Description H-50DV Rotary pistion vacuum pump/ pistion vacuum pump/ rotary vacuum pump/ vacuum pump Techanical data:Model:H-50DVDisplacement: (L/S CFM): 50, 105Ultimate partial pressure:0.5Pa,Ultimate total pressure:3Pa,Motor Power:4/3kw,Suction:63mm,Discharge:50mm,Cooling water (15 degree):200,piston type: duplex cylinder