... lubricating oil go into container Specifications 1,2X Series Two-stage Rotary Vacuum Pump2,Speed of exhaust: 2 ... *0.01Pa4,Power:0.37-5.5KWDetails :2X Series Two-stage Rotary Vacuum Pump1,Technical Parameter:Speed of exhaust ... rotary piece, end cover and spring etc .2X series vacuum pumps take a double stage structure, which working ... the process of operation. LK_BT 2X Series Two-stage Rotary Vacuum Pump