Because it is the first time to use or encounter this kind of fault for the first time, we don't know the reason why the rotary vane vacuum pump injects oil, so we don't know the solution to the problem. The common rotary vane vacuum pump products need to be lubricated with vacuum oil, so some users will encounter the phenomenon of vacuum pump oil injection when using 2x rotary vane vacuum pump products

1. The most common reason for vacuum pump oil injection is that the suction pipe or the suction container of the vacuum pump is not sealed enough, and the suction pipeline system is suddenly exposed to the atmosphere. Because there is a lot of moisture in the atmosphere, the water is sucked into the pump body, and the vacuum oil is infiltrated with water, which leads to the phenomenon of vacuum pump fuel injection. The solution to this problem is to check the sealing If the vacuum pump is used as a vacuum suction cup, it is suggested to install a vacuum tank in the suction pipe of the vacuum pump to pump the vacuum tank into negative pressure, and then use the negative pressure of the vacuum tank to suck the suction cup.

2. Another reason for vacuum pump oil injection is likely to be caused by too much vacuum oil. Adding vacuum oil should be operated correctly according to the operation manual of vacuum pump. The standard oil level should be based on the mirror center. The solution to vacuum pump injection caused by excessive vacuum oil is to open the oil drain valve and drain the excess oil.

3. Another reason for vacuum pump fuel injection may be that the motor of rotary vane vacuum pump reverses due to the reverse connection of motor wiring during the first use, resulting in the reverse rotation direction of vacuum pump rotor. The solution of vacuum pump oil injection is very simple, and it can be solved by changing any two wiring positions of the motor.

4. Due to the corrosive nature of the vacuum pump, it is suggested to select a corrosion-resistant vacuum pump to solve the problem.

5. Vacuum pump injection solution can also be replaced by oil-free vacuum pump or water ring vacuum pump products suitable.