Problems with the air valves of reciprocating compressors
Thread Content
Recently, the reciprocating compressor DW0.8-2.0 has been experiencing frequent high exhaust temperature issues during operation; inspection revealed that the valve plates were broken. I would like to ask the experienced experts: what are the latest materials used in valve technology? What’s the approximate price? What material should the valve disc of a regular valve be made of? Are there any relevant **standards or industry standards?
Are your spare parts from the original manufacturer? It should be a material issue. The valve seat should be made of copper, stainless steel, or cast steel, depending on the physical and chemical properties of the medium being processed. It’s clear that this is a fake product. People usually do this to save money. If subsequent maintenance costs and accident-related losses are included, it might be even higher. . . . . . The solution is to contact the manufacturer, or go to Kaifeng where there are many oxygen generator factories, and have the material replaced in accordance with the standards for oxygen. Such devices are like time bombs; it is urgent to take action immediately.
The commonly used material for valve discs at present is polyether ether ketone
The products from Holbigg are of good quality; you might want to check them out
This is a typical mesh valve disc, usually made of 3Cr13 material. Heat treatment of the material is very important; if it is too hard, it will break, while if it is too soft, it will deform and fail to provide a proper seal. Also, is the movement stroke of the valve disc too large? If it is, the inner ring is also prone to breaking. If it is a corrosive gas, considering the use of PEEK valve discs is an option.
Now, both piston rings and support rings are made from such materials!
I did some analysis on it myself, and this is the result; I’m not sure what this thing is
3Cr13 and PEEK are used more frequently; could it be that the medium contains impurities?