Maintenance methods for vacuum pumps

Dongguan Punok Vacuum Technology Co., Ltd. is a professional manufacturer of vacuum equipment that integrates research and development, manufacturing, and sales. It is also a professional service provider for repairing imported vacuum pumps. Punok adopts the Italian vacuum pump production process,100% use Italian production equipment to professionally produce vacuum pump accessories and provide vacuum pump maintenance services.

Maintenance and upkeep of imported vacuum pumps:

Start the motor, when the vacuum pump is running normally, open the outlet pressure gauge and inlet vacuum pump, and gradually open the gate valve according to the appropriate pressure displayed. At the same time, check the maintenance of the vacuum pump for the motor load.

Try to control the flow rate and head of the vacuum pump within the range indicated on the label as much as possible to ensure that the vacuum pump operates at the efficiency point, in order to achieve better energy-saving effects.

During the operation of the vacuum pump, the bearing temperature should not exceed the ambient temperature35C， The temperature should not exceed 80C.

Vacuum pump maintenance: If any abnormal noise is found in the vacuum pump, it should be stopped immediately to check the cause.

When the vacuum pump needs to be stopped, first close the gate valve and pressure gauge, and then stop the motor.

Within one month of operation, the vacuum pumpChange the lubricating oil every 100 hours, and then change the oil every 500 hours thereafter.

Regularly adjust the packing gland to ensure normal dripping inside the packing chamber(It is advisable to leak out in droplets).

Regularly check the wear of the shaft sleeve, and replace it promptly if there is significant wear.

For the maintenance of the vacuum pump, when it is used in the cold winter season, after parking, the drain plug at the bottom of the pump body needs to be unscrewed to drain the medium completely. Prevent frost cracking.

If the vacuum pump is not in use for a long time, it is necessary to disassemble the entire pump, dry off the water, apply grease to the rotating parts and joints, and store them properly.

The maintenance techniques for vacuum pumps include:

1. Cylinder repair technology; Cylinder repair technology is the core technology of the entire repair process, targeting the repair of cylinder wear, wave formation, and other issues.

2. Proofreading; Horizontal calibration mainly refers to the calibration of rotors.

3. Gap adjustment; Gap refers to the gap between the rotor and the cylinder body, which is generally adjusted to 3-5 seconds.

4. Cleaning techniques; Cleaning technology is a prerequisite for vacuum pump maintenance, including cleaning the oil tank and cylinder body; In addition to boiling water, cleaning of some oil stains is also necessary for the cleaning of vacuum pumps, especially for the cleaning of core components. Cleaning thoroughly is the prerequisite for stable performance of vacuum pumps!

Maintenance methods for vacuum pumps：

1. Clean the cylinder wall of the air pump thoroughly before installing and replacing the blades, without any residue.

2. Check if the cylinder wall is worn (note: if encountering poor blades, high hardness can easily cause wear on the cylinder wall).

3. When installing the blades, pay attention to the chamfer direction and do not install them in the wrong direction, as this will quickly break the carbon sheet.

4. Regularly maintain the air pump bearings and add high-temperature lubricating oil. If the bearings are damaged, it can lead to unexpected failures with serious consequences.

5. The air inlet filter element should maintain good working performance, be replaced and maintained regularly.

6. The specifications and dimensions of the blades must be measured well, as it is difficult to have accurate specifications after wear. Please measure from the rotor slot to the cylinder wall, leaving a small gap. (The expansion coefficient of the blades must be taken into account, as once the blades expand, they will crush the carbon flakes from both ends.)

7. The blade mainly depends on its material (too hard wears down the cylinder wall, too soft blades consume quickly); Accuracy, error value (errors that are not visible to the naked eye may cause poor vacuum, loud noise, or the expansion and jamming of the rotary blade after heating)

Maintenance methods for vacuum pumps