Feature and Applications They compose a precision made pump and direct driving Induction Motor with high starting torque. Lowest cost and excellent performance contributes to the best choice for lots of applications that need middle vacuum. Structure is designed for easy installation and maintenance. Multi stage filtration system ensures minimum leakage (less 0.1%) of lubrication oil. The pumps are driven by high efficiency induction motor with nature air cooling system only and required no liquid. All components are processed under strict quality control. This enables a quiet rotation and fast pumping speed. The pumps are widely used in food processing, packaging, hospital, thermoforming, printing, PCB testing, vacuum handling Specifications and Performance Model   CP10-550 CP-10-520 CP20-620 Pumping Speed m3/h 24 24 48 End Pressure mbar 2.0 2.0 0.5 Input Voltage Volt 1     Voltage Frequency Hz 50/60 50/60 50/60 Power Output KW 0.9 0.9 1.5 Rated Currents Amp 6.0 4.2 6.5 Noise Level dB 72 72 74 Oil Capacity Lt 0.5 0.5 1.0 Inlet Diameter inch 1/2" 1/2" 1" 1/4 Net Weight Kgs 23 23 58 Dimensions   CP10-550 CP10-520 CP20-620 A 420 420 420 B 290 290 300 C 185 185 286