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Routine maintenance of vacuum pump oil mist separator

Under the action of driving force, the oil-gas mixture on one side passes through the filter paper and cotton of the vacuum pump oil mist separator.

The oil is intercepted, thereby achieving separation of gas from vacuum oil.

The filtered vacuum pump oil is recycled through the return oil pipe, and the discharged gas is oil-free exhaust gas, achieving a pollution-free and clean effect.


During operation of the vacuum pump: Use the pressure gauge of the vacuum pump oil mist separator to check for blockage. If the pressure gauge reading is in the red area, it means that the oil mist separator is blocked and needs to be replaced.

If there is no oil mist separator pressure gauge, the resistance of the oil mist separator is determined by changes in the current consumed by the drive motor.

If the current consumed by the drive motor or the flow rate of the vacuum pump decreases, it indicates that the oil mist separator is blocked.


If the pressure indicated by the pressure gauge of the vacuum pump oil mist separator is lower than usual, or if the current consumed by the drive motor is less than usual, the reason may be that an oil mist separator is damaged and needs to be replaced.


If the discharged gas contains oil, the reason may be that the oil mist separator is blocked or damaged and needs to be replaced.

If the vacuum pump oil mist separator cannot be thoroughly cleaned, replace the clogged oil mist separator.


Before replacing the vacuum pump oil mist separator, please turn off the vacuum pump and disconnect the power supply to ensure that the vacuum pump is at atmospheric pressure.

Open the exhaust port cover plate on the oil tank with the special hex wrench and remove the exhaust filter. Install the new oil mist separator with a sealing ring at the open end into the correct position inside the oil tank.

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