Get current pricing for Oem, RD-4 Brand Rotary Vane/vacuumpump Rd-4. 4m/h. 380 V, 3 Phases, 50 Hz. 500 W. Motor Power 180 W. Max Oil Filling 750 Ml. End Partial Pressure 0,0001 Torr. E . Product Category: Lab Equipment, Sub Category: Vacuum Pumps: