Sealing of the equipment flange in vacuum vessels
Thread Content
Can asbestos rubber sheets be used for sealing the equipment flanges of vacuum vessels? Why?
The selection of gaskets for flange sealing depends not only on pressure but also on temperature and the medium. Your question is too vague. It’s hard to give you an answer.
It’s best not to use it; inhaling asbestos is definitely not good.
Asbestos rubber sheets are obsolete products; try to avoid using them if possible.
It is determined whether to use it based on pressure, temperature, the medium, and user requirements; it’s inexpensive!
No, rubber sheets should be used. Firstly, 1) asbestos-containing rubber sheets contain asbestos, and once they enter the vacuum pump, they affect its normal operation (based on speculation). 2) The rubber sheet has a lower coefficient and lower specific pressure compared to asbestos-rubber gasket sheets, making it easier to achieve sealing under vacuum conditions. This post was last edited by Changqing on 2009-2-19 09:22.]
It can be used, I don’t think there’s any rule stating that asbestos rubber sheets cannot be used in vacuum containers.
I dare not agree with the above poster’s answer, because asbestos rubber gasket materials have tiny gaps, according to GB9129