Selection of gaskets
Thread Content
For heat exchangers, two-phase steel 00Cr22Ni5Mo3N is used for the tube side; what should be used as gaskets?
When selecting equipment gaskets, the process medium should be considered first, followed by the operating temperature and pressure, and finally the sealing type. Since your question concerns the use of duplex steel in pipe fittings, and based on the corrosion resistance mechanism of duplex steel, I guess there are chloride ions in the medium, and the temperature is around 100°C. If that’s the case, a PTFE gasket will suffice. This post was last edited by Benbenxuan on 2008-1-2 at 19:00.]
The choice of gasket has little to do with the material of the cylinder; you should first consider the type of sealing surface being used, as well as the design temperature and design pressure. As for whether it is related to the medium, I’m not sure. According to available information, there seems to be no connection. Let’s discuss this matter further.
I think it’s better to consider the medium through which they come into contact; this is common sense
Speaking of the materials inside, gaskets have little to do with the equipment; it’s mainly temperature, pressure, and the material itself
The selection should be determined based on the design conditions such as pressure, temperature, and the corrosiveness of the medium