How to adjust the liquid level in the oil purifier?

In oil purifiers (such as lubricating oil purifiers, fuel purifiers, etc.), liquid level adjustment is the key to ensuring the regular operation of the equipment and the effect of oil treatment. The following are the general steps and precautions for liquid level adjustment:

1. Confirm the equipment type and liquid level control method

The liquid level control methods of different oil purifiers may be different. Common ones are:

- Float valve automatic control: The float valve senses the liquid level and automatically replenishes or drains the oil.

- Manual valve control: Manually adjust the inlet and outlet valves by observing the window or liquid level gauge.

- Electronic liquid level sensor: Automatic adjustment through PLC or controller.

2. Liquid level adjustment steps

(1) Adjustment of the automatic control system

1. Check the float or sensor:

- Make sure the float is not stuck or damaged, and the sensor signal is normal.

- Clean the liquid level sensing components to avoid oil stains affecting the sensitivity.

2. Set the liquid level range:

- Refer to the equipment manual to adjust the high and low liquid level trigger points of the float arm or sensor.

- Normally, the liquid level should be kept between 1/2 and 2/3 of the oil tank to avoid being too high (oil overflow) or too low (pump empty).

3. Test the automatic function:

- Simulate the change of liquid level and observe whether the valve or pump starts and stops according to the setting.

(2) Manually adjust the liquid level

1. Observe the liquid level indication:

- Confirm the current liquid level through the window, liquid level gauge, or oil dipstick.

2. Adjust the valve:

- Liquid level is too high: Slowly open the oil drain valve or reduce the oil intake.

- Liquid level is too low: Slowly open the oil intake valve or reduce the processing speed (such as adjusting the pump flow).

3. Dynamic balance:

- When the oil purifier is running, the oil intake and output must be balanced to avoid drastic fluctuations in the liquid level.

3. Precautions

- Safety first:

- High-temperature oil needs to be cooled before adjustment to prevent burns.

- Ensure that the equipment is powered off or depressurized before repairing the liquid level components.

- Avoid air ingress:

- Low liquid level may cause the pump to suck in air, affecting the purification effect or damaging the equipment.

- Oil compatibility:

- If the oil type is changed (such as lubricating oil to fuel oil), the liquid level sensor needs to be recalibrated (density may affect the action of the float).

- Regular maintenance:

- Clean the sludge in the oil storage tank to prevent clogging of the liquid level control components.

4. Common Problems

- Unstable liquid level:

- Check whether the valve is leaking, whether the pump flow is matched, or whether the sensor is faulty.

- False liquid level readings:

- Clean the window or liquid level gauge when it is dirty; ｒｅｐｌａｃｅ the sensor if it is faulty.

- Automatic control failure:

- Check the circuit, pneumatic pipeline, or mechanical parts (such as the float is stuck).

5. Refer to the equipment manual

Oil purifiers of different brands (such as Pall, CJC, Hifi, etc.) may have specific adjustment requirements. Be sure to refer to the manufacturer's manual.

If you still have specific questions, it is recommended to provide the equipment model or on-site photos for more accurate guidance!