Valve maintenance
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How often should the air valves of a reciprocating compressor be maintained and inspected after they have been in use? Our compressor starts making abnormal noises in the air valve after about 50 days of use. What could be the cause?
Check whether the valve disc, cushion plate, and spring of the air valve are installed correctly.
The maintenance interval for air valves should be specified by the manufacturer of the main unit; for example, the maintenance interval for the air valves in the compressor I use is after 5,000 hours of operation. The air valve is making unusual noises; it needs to be taken apart as soon as possible to determine the cause. If it is just a valve failure, the impact is minor; but if it affects the cylinder, it must be resolved as soon as possible.
The air valve makes abnormal noises; this may be due to damaged or deformed valve plates, or the presence of impurities attached to the valve. It is necessary to clean the valve to eliminate the source of these impurities. Valve spring wear, etc.
Reply to 1# Yang Yangyang: This is related to the quality of the valve used as well as the process medium. Common problems include cracked valve discs, spring failures, or sticking. Corrosive process media or those prone to coking can cause abnormalities. The temperature of such valves is usually higher than that of normal valves, and it is essential to prevent foreign objects from entering the cylinder
Thank you to all my friends for your support! Someone who can do the repairs will be found! :)
Maintaining air valves is actually quite simple; the key is to identify problems promptly and address them right away, as delaying this will lead to serious consequences
1. Issue of the service life of gas valves in reciprocating compressors: (1) It is related to the composition of the gas being compressed; semi-water gas is different from freshly refined gas. Fresh gas should be used for at least half a year, usually one year. (2) It is related to pressure; for semi-water gas as well, the service life is about 40 days in the first stage, 60 days in the second stage, 90 days in the third stage, and half a year in the high-pressure stage. 2. After about 50 days of use, the air valve of the compressor begins to make abnormal noises. The reasons are as follows: (1) There are foreign objects in the gas that cause the valve leaf to get stuck. (2) Valve disc fracture. (3) The set screw is damaged.
Once every 50 days – is that a bit too frequent? Check it. Is there an issue with the valve selection? Or is there a problem with *Yi?
Our compressors sometimes fail to operate for even 30 days, mainly because the filter screens at the primary inlet keep getting damaged, and mechanical impurities (iron shavings) often get trapped in the air valves. I don’t know either which mesh size would be better to choose Could some expert give me some advice?
There are many influencing factors, such as the medium, the material of the valve disc, and the lifespan of the spring.