Development Vacuum Equipment Co., Ltd. Roots Vacuum Pumps Model: ZJ-70DV1 Utimate Partial Pressure(Pa): 0.03 Ultimate Total Pressure(Pa): 0.5 Max Permissible Diff. Pressure(Pa): 8000 Motor Power(kW): 1.1 Inlet(mm): 80 Outlet(mm): 80 Cooling Type: Air Cooled Widely used in vacuum coating, vacuum metallurgy, vacuum heat treatment, vacuum drying, vacuum impregnation, vacuum strain poly-silicon production, aerospace simulation, and so on. Oil Diffusion Ejector Vacuum Pumps Model: ZL-150 Ultimate Pressure(Pa) : 0.07 Pumping Speed (Ls)(Inlet Pressure 1.33Pa, for Air): 450 Max.Exhaust Pressure (Pa): 133 Heating Power (kW): 1.8 Electric Power Type: 1P-220V Oil Type: Diffusion Ejector Vacuum Pump Oil Oil Capacity (kg): 2.45 Cooling Water (L/h)(Inlet Temperature 20±5 ℃): 150 lnlet (mm): 150 Typical Backing Pump: 2H-45DVA Outside Dimensions L*W*H(cm³): 35*32*79 Net weight (kg): 51