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What are the precautions for vacuum pump oil replacement?
Nov 07 , 2024

The precautions for changing the vacuum pump oil are as follows:

1.Cleaning and maintenance: When replacing the vacuum pump oil, attention should be paid to cleaning to prevent dirt from mixing into the vacuum pump.

2.Operation time: It is not advisable to start the vacuum pump for too long, so as not to fatigue due to the excessive beating of the exhaust valve.

3.Cleaning taboos: It is strictly forbidden to use kerosene, gasoline, alcohol, etc. to clean the vacuum pump without disassembly.

4.Oil change timing: It is best to change the oil after the oil temperature rises, so that the visceral oil of the vacuum pump can be exhausted.

5.Oil Inspection: The most practical way to assess the condition of the oil is to inspect the oil on the oil mirror glass a few minutes after the pump has stopped. If the oil is opaque, dirty black or brown, it blends into dust or becomes carbonized oil; If the color is opaque milky/dark brown, it is contaminated with water.

6.Oil drain step: Run for about 30-60 minutes to ensure that the pump is in a state of working temperature before changing the pump oil to maintain the normal viscosity of the oil.

7.Oil replacement frequency: generally about 500-2000 hours to change, but this time interval should be the longest, not a hard rule. This is because the degree of contamination of the oil is variable, depending on the individual process conditions.

8.Oil color change: The oil must be replaced when the originally light brown pump oil turns dark brown or black due to aging, or when the liquid becomes cloudy due to liquid entering the pump.

9.Anti-corrosion pump oil: If you want to pump corrosive steam, you should use anti-corrosion pump oil instead of ordinary pump oil. The continuous neutralization reaction will gradually deplete the corrosion inhibitor, depending on the total amount of steam and acidity. The pump oil must be changed more frequently depending on these factors.

Following these precautions can ensure proper replacement of the vacuum pump oil, thereby extending the life of the vacuum pump and keeping it running efficiently.

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