What gaskets should be used for the flanges of high-temperature molten salt pipelines? I hope some expert can give me some guidance! ! !
Thread Content
What gasket should be used for the flanges of high-temperature (565°) molten salt pipes (Q345R)? On which standard? I hope some expert can give me some guidance! !
Should pipes made of Q345R material be used at 565 degrees? How bold – aren’t you afraid of running into trouble?
So what kind of pipe should be used? Do you think molten salt pipelines are related to solar thermal projects? ? ?
Q345R has a temperature tolerance limit of 470 degrees, not to mention factors such as pressure and corrosion
So we need to use the -P11 pipeline? ? ?
I just want to ask what material the gasket is made of?
I don’t know how much pressure there is; I guess metal shims will be needed
The normal operating temperature for standard graphite metal wound gaskets is between -200 and 650°C; in a vacuum or oxygen-free environment, this temperature can reach 800–900°C. However, the long-term operating temperature, or the temperature at which such gaskets can be used continuously, is 450°C.
Media used with graphite gaskets: hot water, steam, oils, acids, alkalis, ammonia, hydrogen, organic solvents, hydrocarbons, cryogenic liquids, etc. Maximum operating pressure for graphite gaskets: 30 MPa. Operating temperature for graphite gaskets: -200~650°C. Reinforced graphite gaskets are made from flexible graphite strips or flexible graphite woven fillers, which are then molded into ring-shaped products of various sizes. Suitable for media such as hot water, high-temperature and high-pressure steam, heat exchange fluids, nitrogen, organic solvents, hydrocarbons, and cryogenic liquids. Used for compressors, pumps, valves, chemical instruments, meters, etc.
According to the information, only graphite gaskets can be used
We used it before, and it would wash away the inner ring of the gasket, which eventually led to leaks