This is to introduce the key functions of vacuum oil, which is essential for oil-sealed vacuum pumps, including rotary vane, rotary piston and rotary screw vacuum pumps.
Function 1: Lubrication
Lubrication is the basic function of the vacuum oil. The lubricating oil forms oil films between the pump cover, rotor, rotary vanes and pump body, avoiding direct contact with each other and reducing friction.
Function 2: Sealing
The oil film created by the vacuum oil plays an important sealing role for the vacuum pump. It improves the pump efficiency to achieve higher ultimate pressure.
Function 3: Cooling
The vacuum oil absorbs a large amount of compression heat and reduces the power of the vacuum pump during operation.
In addition, the vacuum oil reduces also the noise generated by high frequency compression of the vacuum pump.
Colink, a TOP 3 Global Quality HVAC Vacuum Pump Manufacturer from China