What are the common reasons for the failure of air valves in reciprocating compressors?
Thread Content
Could everyone please explain why the air valves in reciprocating compressors tend to break down frequently?
The product quality is poor. There is a problem with the operating procedure.
There are likely many reasons for this problem. Poor quality of the equipment is one of them; the gas used may also be acidic. Insufficient cooling water for the compressor can lead to high temperatures, which in turn causes damage to components such as gas valves. Additionally, the equipment might not have been installed properly. That’s about the extent of my knowledge on this topic – these are the issues I’ve encountered. I hope everyone can share their opinions and discuss this together in order to improve our understanding
Possible causes of valve damage: 1. Poor quality of the valve seat, valve disc, and spring； 2 Caused by insufficient assembly level ； 3 Caused by unreasonable process operations ； 4 Caused by insufficient cleanliness of process gas ； 5 Caused by unqualified process gas components ；
Common reasons for valve failures: 1. Quality issues with the valves, particularly poor quality of the valve discs, as well as wear and breakage. 2. Impure gas. 3. Excessively high temperatures. 4. Poor quality of the springs
1. The medium used is corrosive. 2. The toughness of the spring was not selected appropriately; there are issues with the positioning pins of the valve disc, which cause it to rotate, and the bottom hole of the spring is too large. 3. The cooling water’s cooling effect is inadequate. 4. Improper installation has caused air leakage at the valve seat, resulting in high temperatures that lead to a loss of stiffness in the valve components. 5. Quality issues with the product. 6. Incorrect level of installation
I have analyzed several possible reasons for the failure of the gas valve: 1. The quality of the valve itself is poor; 2. The gas is too dirty, containing water; 3. Improper installation; 4. Excessively high temperature.
1. It’s due to improper installation. 2. It’s a problem with the quality of the equipment. 3. There are too many impurities in the gas, which clog the valves
Is it worth repairing the air valve – is it the valve disc, the valve disc spring, or the valve body? If it is the valve body, it is usually because the set screw is not tightened properly, causing the valve body to vibrate with the compression frequency of the piston.
I agree as well; the details given for the 4th and 6th floors are very thorough. Could we also consider the reasons related to the manufacturing process? ； For example, if the required inlet pressure is 0.05 Mpa but the actual inlet pressure reaches 0.07 Mpa, the fatigue of the valve elements accelerates, and so on. It’s just my humble opinion.
1. Product quality. 2. Operating procedures. 3. Pay attention to equipment maintenance.
The main issues lie in the quality and selection of air valves; the poster can refer to Holbig’s advertisements for air valves to choose a suitable one, which will extend the lifespan of the valve.
The air valves of the L-type compressors in our unit also get damaged frequently; you can refer to the suggestions above
At first, our compressor valves also broke frequently. There are several reasons for this: 1. The quality of the valves was substandard； 2. Gas with liquid and water entrained ； 3. There are issues with the installation quality.
1. The quality of the air valve is poor. 2. There is a problem with the installation of the air valve. 3. Improper selection of air valves. 4. The process medium is too dirty. 5. The cooling effect is poor, and the temperature of the medium is too high.