VEVOR 3.5 CFM Vacuum Pump 1-Stage HVAC Vacuum Pump with Oil AC Vacuum Pump 134a

Powerful Vacuum Pump: Experience top-notch performance with our 4 pole pure copper motor! Designed with high torque, you can count on its reliable performance and efficient operation. Flow Rate: 3.5 CFM; Ultimate Vacuum: 40 microns; Inlet: 1/4″ SAE male, 3/8″ SAE male; Voltage/Frequency: 120V/ 60 Hz, Oil Capacity: 250 ml. Pump oil type: vg100 (kinematic viscosity 46 mm2/s, viscosity 100mm2/s). Take on the Heat: Say goodbye to constant downtime with our innovative single stage vacuum pump! The T-shaped heat sink and cooling fan help the pure copper motor to effectively dissipate heat, allowing it to work continuously for over 2 hours. And with added overheat protection, you can enjoy stabilized performance and longer service life for your motor. Outstanding Oil Inlet System: Featuring an anti-backflow inlet design with a check valve and ball valve switch, you can avoid oil backflow and pollution of both the machine and the pipe body. And with the addition of an